From: "Lyle Pakula" To: "aus-wx" Subject: aus-wx: Lake Eildon Date: Thu, 19 Oct 2000 10:59:26 -0600 X-Mailer: Microsoft Outlook Express 5.00.2919.6700 Sender: aussie-weather-approval at world.std.com Reply-To: aussie-weather at world.std.com

is there any online data for catchment levels for Vic? specifically Lake eilodn, or, if anyone knows how eildon faired this winter?

Thanks, Lyle

    |
- -+-=[ Lyle Pakula ]=--------------------------------- -- -    -
    |
    | Graduate Research Assistant                        ^
    . Department of Atmospheric Science           ^    /   \
    . Colorado State University                 /~~~\/       \
       ph: +1-(970)-491-7785                   /    /~~~~~~~~~~~\
    . email: lyle at atmos.colostate.edu       /    /               \

From: "Lyle Pakula" To: Subject: Re: aus-wx: Correction! re Upper Air charts via BOM Date: Thu, 19 Oct 2000 10:45:18 -0600 X-Mailer: Microsoft Outlook Express 5.00.2919.6700 Sender: aussie-weather-approval at world.std.com Reply-To: aussie-weather at world.std.com Hi Anthony, I think dew point and specific humidity are read of the chart the same way, ie you don't need to follow the curve anywhere. Whereever the 'water content' line goes, if you read the temp scale, that's dew point, if you read the mixing ratio, that's specific humidity. the only thing is with those skew-t's, the mixing ratio lines are not extended all the way up the chart, so it makes it easier to just read off the dew point. Anyway, i think that's exactly what your saying. cheers, lyle. ----- Original Message ----- From: "Anthony Cornelius" To: Sent: Wednesday, October 18, 2000 5:57 PM Subject: aus-wx: Correction! re Upper Air charts via BOM > Hi Lyle, > > I made a boo boo in my last post (can I use only 2.5hrs sleep as an > excuse? Stayed up too late watching the Vic storms...but I went and had > another hours sleep, so can think better now ) > > The left red line is the dew point, not the relative humidity. You > normally use the mixing ratio lines, as they assist you in plotting the > LCL and the rest of the theoretical air parcel plot. You raise a parcel > of air from its surface temperature via the DALR, at the same time draw > a line parallel to that of the mixing ratio lines from the surface DP. > Where these two lines intersect, your LCL occurs. From then on, instead > of raising your surface parcel at the DALR, you raise it at our beloved > SALR. > > (Note - LCL = Lifted Condensation Level, DALR = Dry Adiabatic Lapse > Rate, SALR = Saturated Adiabatic Lapse Rate). > > However, you can also use it to work out the specific humidity...simply > just follow the DP line back down to the bottom of the chart to work out > your specific humidity. > > So yes, you're right! > > Sorry for confusing you/anyone! > > AC > > > Lyle Pakula wrote: > > > > Hi Anthony, > > > > yep, they're the charts i am referring too. So the left red line is > > *not* specific humidity? The bottom of the skew-t has mixing ratios > > though? > > > > Thanks, Lyle > > > > | > > - -+-=[ Lyle Pakula ]=--------------------------------- -- - - > > | > > | Graduate Research Assistant ^ > > . Department of Atmospheric Science ^ / \ > > . Colorado State University /~~~\/ \ > > ph: +1-(970)-491-7785 / /~~~~~~~~~~~\ > > . email: lyle at atmos.colostate.edu / / \ > > > > > > ----- Original Message ----- > > From: "Anthony Cornelius" > > To: > > Sent: Wednesday, October 18, 2000 2:50 PM > > Subject: Re: aus-wx: Upper Air charts via BOM > > > > > Hi Lyle, > > > > > > What is the URL for the charts to which you're referring too? Are > > they > > > the BoM soundings (aerological diagrams)? > > > > > > If so, the red line is the most current sounding, with the blue line > > > being the previous sounding down to that one. The right red line is > > the > > > temperature profile, and the left red line is the relative humidity. > > > > > > Sorry if this isn't what you're referring too (but it's the only BoM > > > chart that I ever use that has red lines in them :) > > > > > > AC > > > > > > Lyle Pakula wrote: > > > > > > > > Hi, > > > > > > > > i was just checking out the upper air charts from the BOM and am > > curious as > > > > to what the associated red line is. I'm assuming it's specific > > humidity but > > > > the trace goes above 200mb, which i'm used to not seeing?? > > > > > > > > Also, where is the best place for *good* 850 -> 200mb maps for Oz? > > > > > > > > Thanks, Lyle. > > > > > > > > > > +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ > > > > To unsubscribe from aussie-weather send e-mail > > to:majordomo at world.std.com > > > > with "unsubscribe aussie-weather your_email_address" in the body > > of your > > > > message. > > > > > > -----------------------jacob at iinet.net.au------------------------------ > > > > > > -- > > > Anthony Cornelius > > > Queensland Coordinator of the Australian Severe Weather Association > > > (ASWA) > > > (07) 3390 4812 > > > 14 Kinsella St > > > Belmont, Brisbane > > > QLD, 4153 > > > Please report severe thunderstorms on our Queensland severe > > thunderstorm > > > reporting line on (07) 3390 4218 or by going to our homepage at > > > http://www.severeweather.asn.au > > > > > +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ > > > To unsubscribe from aussie-weather send e-mail > > to:majordomo at world.std.com > > > with "unsubscribe aussie-weather your_email_address" in the body of > > your > > > message. > > > > > -----------------------jacob at iinet.net.au------------------------------ > > > > > -- > Anthony Cornelius > Queensland Coordinator of the Australian Severe Weather Association > (ASWA) > (07) 3390 4812 > 14 Kinsella St > Belmont, Brisbane > QLD, 4153 > Please report severe thunderstorms on our Queensland severe thunderstorm > reporting line on (07) 3390 4218 or by going to our homepage at > http://www.severeweather.asn.au > +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ > To unsubscribe from aussie-weather send e-mail to:majordomo at world.std.com > with "unsubscribe aussie-weather your_email_address" in the body of your > message. > -----------------------jacob at iinet.net.au------------------------------ > +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ To unsubscribe from aussie-weather send e-mail to:majordomo at world.std.com with "unsubscribe aussie-weather your_email_address" in the body of your message. -----------------------jacob at iinet.net.au------------------------------ From: "Lyle Pakula" To: Subject: Re: aus-wx: Upper Air charts via BOM Date: Thu, 19 Oct 2000 11:16:41 -0600 X-Mailer: Microsoft Outlook Express 5.00.2919.6700 Sender: aussie-weather-approval at world.std.com Reply-To: aussie-weather at world.std.com Hey ben, not the most user friendly system :) i'm curious to see if anyone has some generated links to just lcick and get the 850->200mb pressure/height charts? thanks, Lyle p.s. over here they have some seriously good information on the web, a pay site called 'weathertap.com' is phenomonal for nowcasting but there is also a wealth of other good sites that are well organised and straight forward. maybe the guys at theweather.com should check out www.rap.ucar.edu/weather ----- Original Message ----- From: "Ben Quinn" To: Sent: Wednesday, October 18, 2000 5:02 PM Subject: Re: aus-wx: Upper Air charts via BOM > Hi Lyle, > > > > > Also, where is the best place for *good* 850 -> 200mb maps for Oz? > > > > NOAA have a great site called READY, where you can plot charts for 14 > different levels at 6 hour intervals > > The AVN forecasts can be found at > http://www.arl.noaa.gov/ready-bin/arlplot1.pl?metdata=AVN+191+km > > And the MRF forecasts > http://www.arl.noaa.gov/ready-bin/arlplot1.pl?metdata=MRF+191+km > > But i would recommend using AVN, as you have 6 hour charts as opposed to 12 > hours with MRF, and AVN is updated 4 times daily > > If you want a quick rundown of the forecasts and don't have time to plot > charts on the above URL's, try the PCMDI site > > http://www-pcmdi.llnl.gov/fiorino/wxmap/ > > > > ----- Original Message ----- > From: "Lyle Pakula" > To: "aus-wx" > Sent: Thursday, October 19, 2000 4:31 AM > Subject: aus-wx: Upper Air charts via BOM > > > > Hi, > > > > i was just checking out the upper air charts from the BOM and am curious > as > > to what the associated red line is. I'm assuming it's specific humidity > but > > the trace goes above 200mb, which i'm used to not seeing?? > > > > Also, where is the best place for *good* 850 -> 200mb maps for Oz? > > > > Thanks, Lyle. > > > > +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ > > To unsubscribe from aussie-weather send e-mail to:majordomo at world.std.com > > with "unsubscribe aussie-weather your_email_address" in the body of your > > message. > > -----------------------jacob at iinet.net.au------------------------------ > > +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ > To unsubscribe from aussie-weather send e-mail to:majordomo at world.std.com > with "unsubscribe aussie-weather your_email_address" in the body of your > message. > -----------------------jacob at iinet.net.au------------------------------ > +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ To unsubscribe from aussie-weather send e-mail to:majordomo at world.std.com with "unsubscribe aussie-weather your_email_address" in the body of your message. -----------------------jacob at iinet.net.au------------------------------ From: David Jones To: "Aussie Weather Digest (E-mail)" Subject: aus-wx: WA/NT rainfall Date: Fri, 20 Oct 2000 09:18:04 +1000 X-Mailer: Internet Mail Service (5.5.2650.21) Sender: aussie-weather-approval at world.std.com Reply-To: aussie-weather at world.std.com Chris wrote... > Hi Blair and everyone > > I asked this question before, but am wondering, could this be the >beginning of a new harsher monsoonal season for the north. For the last 4-5 >years there have been above average falls in Northern Australia, could we be >seeing some of the effects of global climate change beginning to occur or have >the last few years been flukes? Good question to which I suspect no one really knows the question. Their certainly has been an upwards trend in (particular) summer rainfall in northern/northwest Australia this century e.g., http://www.bom.gov.au/climate/change/rerain.shtml which is widely significant. An interesting fact from this is that four of the five wettest summers since 1900 in WA, have occurred since 1993 - listed below in (mm). The changes in the NT are less clear, being strongly governed by the El Nino/Southern Oscillation. Summer Average WA rainfall 199812199902 280.85 191412191502 288.70 199412199502 292.44 199612199702 294.70 199912200002 325.63 Spring is a mixed bag over northern Australia, which probably reflects the competing influences of mid latitude rainfall mechanisms (fronts lows etc), and tropical factors (monsoon, small scale convection) etc. At the same time as the north has tended to get wetter, their has been a tendency for a drying-out of SW WA in the winter half year, which collectively suggests a poleward contraction (probably in both space and time) of mid latitude influences, and expansion of tropical influences. At this stage, I doubt that climate change scenario's from models are reliable enough to indicate whether this is an expected result of global climate change. There is anecdotal evidence however... For example if you look at ocean temperatures, the Indian Ocean has shown a very rapid warming over the past 50-100 year amounting to nearly 1C, while the zone of baroclinicity has appeared to have shifted south (though data is very patchy prior to the advent of satellites around 1970, for the later). The contraction of the zone of baroclinicity is consistent with the reduction in SW WA rainfall, and an observed contraction of the midlatitude westerlies, and a shift away from mid latitude dominance of rainfall. At the same time, the warming in the Indian Ocean has exceeded by a factor of about 2 the warming in the Pacific - of course (all things being equal) evaporation and tropical convection will favour warmer waters, which is consistent with increased summer rainfall over northwest Australia. Certainly, it will be interesting to see how wet the coming monsoon is over the north. BTW this event has been yet another fizzer for the middle eastern suburbs of Melbourne with a paltry 5mm of (mostly drizzly) rain, and just a few cracks of thunder. Unless something dramatic happens before months end we will have very much below rainfall for the month... Cheers, David Dr David Jones Climate Analysis Section National Climate Centre Bureau of Meteorology Fax : (+61 3) 9669 4678 GPO Box 1289K, Melbourne Ph (work): (+61 3) 9669 4861 Victoria 3001, Australia Ph (home): (+61 3) 9898 4425 email : D.Jones at bom.gov.au +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ To unsubscribe from aussie-weather send e-mail to:majordomo at world.std.com with "unsubscribe aussie-weather your_email_address" in the body of your message. -----------------------jacob at iinet.net.au------------------------------ X-Sender: mbath at pop.ozemail.com.au X-Mailer: QUALCOMM Windows Eudora Version 5.0 Date: Fri, 20 Oct 2000 09:55:05 +1000 To: aussie-weather at world.std.com From: Michael Bath Subject: Re: aus-wx: Weather Radar(again) Sender: aussie-weather-approval at world.std.com Reply-To: aussie-weather at world.std.com There is an example of the hook echo and a BWER in a supercell thunderstorm captured with conventional radar here: http://australiasevereweather.com/storm_news/1998/docs/9803-02.htm click on the image for a loop. Although the radar we get on the web is not as detailed as this (which is direct from the BoM), you would still be able to make out the hook echo illustrated. regards, Michael At 08:01 19/10/2000 -0400, you wrote: >David wrote: > > > If you had a tornado within a certain range of reflectivity radar station > > would this idea work? The tornado would have debris around and in it, >which > > would make it appear as a red dot of the radar for maximum reflectivity. > > Then the region around that would have less and could be a different >colour, > > say green. Could this sort of system be used to detect tornados on normal > > radar? > >Unless the distance between the radar and the tornado is small and unless >there are sources for considerable debris, tornadoes are not usually >detectable via conventional radar. However, there have been other >signatures used. The hook (or pendant) echoes are more often seen on >low-levels along with the closely associated Bounded Weak Echo Region >aloft, although they are not the tornado itself. The hook is a portion of >the precipitation surrounding the BWER that descends (in the Rear Flank >Downdraft) to the surface. The tornado is positioned within the bulb-like >end of the hook and in the strong vertical velocity gradient between the >RFD and the strong updraft. > >In a few cases when the radar is near a large tornado, a circular high >reflectivity echo core can bee seen within the end of the hook. Above this >echo core further aloft, a small circular weakness or hole can sometimes be >detected. In other rare cases, and under similar circumstances, the echo >weak hole can be detected in low-levels. > >However, it is only in the cases of large, strong, tornadoes positioned >near the scanning radar can these rare signatures been seen. > >Les >************************ >Leslie R. Lemon >Radar, Severe Storms, & Research Meteorologist >Phone: 816-373-3533, cell: 816-213-3237 >E-Mail: lrlemon at compuserve.com > +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ > To unsubscribe from aussie-weather send e-mail to:majordomo at world.std.com > with "unsubscribe aussie-weather your_email_address" in the body of your > message. > -----------------------jacob at iinet.net.au------------------------------ ============================================================= Michael Bath mailto:mbath at ozemail.com.au McLeans Ridges http://australiasevereweather.com/ NE NSW Australia http://www.lightningphotography.com/ ASWA Secretary http://www.severeweather.asn.au/ ============================================================= +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ To unsubscribe from aussie-weather send e-mail to:majordomo at world.std.com with "unsubscribe aussie-weather your_email_address" in the body of your message. -----------------------jacob at iinet.net.au------------------------------ Date: Fri, 20 Oct 2000 08:03:18 +1000 From: Anthony Cornelius X-Mailer: Mozilla 4.72 [en] (Win98; I) X-Accept-Language: en To: aussie-weather at world.std.com Subject: Re: aus-wx: Correction! re Upper Air charts via BOM Sender: aussie-weather-approval at world.std.com Reply-To: aussie-weather at world.std.com Hi Lyle, Actually you have to use the seperate lines (ie, the temp line to work out the DP, and the mixing ratio line to work out the specific humidity). The reason for this is because the mixing ratio lines and the temperature lines are not parralel. Thought I'd dig up an example using Wyoming, open up these two URL's side by side: http://www-das.uwyo.edu/cgi-bin/sounding?OUTPUT=GIF&TYPE=SKEWT&HOUR=12&DAY=19&MONTH=10&YEAR=2000&STATION=RIW&au.x=227&au.y=127 http://www-das.uwyo.edu/cgi-bin/sounding?OUTPUT=TEXT&TYPE=SKEWT&HOUR=12&DAY=19&MONTH=10&YEAR=2000&STATION=RIW&au.x=230&au.y=127 The first is the gif sounding, the second is the text sounding. Look at the text sounding, the 700mb level has a g/kg of 5.20. Now look at the gif sounding, goto the 700mb level and find where the DP line intersects that. If you were to follow the temperature line down to the surface, you'd read a specific humidity value of around 4.0ish (ie, halfway between 3.0 and 5.0), now follow the mixing ratio line down to the surface from 700mb, and you get a tad above 5.0. Or, the 5.20 that was shown on the text sounding. If you'd like to get the specific humidity, I think Wyoming is an easier skew-t to use, as the mixing ratio lines go right to the top. Or alternativewly, you could just read it off the text sounding. AC Lyle Pakula wrote: > > Hi Anthony, > > I think dew point and specific humidity are read of the chart the same way, > ie you don't need to follow the curve anywhere. Whereever the 'water > content' line goes, if you read the temp scale, that's dew point, if you > read the mixing ratio, that's specific humidity. the only thing is with > those skew-t's, the mixing ratio lines are not extended all the way up the > chart, so it makes it easier to just read off the dew point. > > Anyway, i think that's exactly what your saying. > > cheers, lyle. -- Anthony Cornelius Queensland Coordinator of the Australian Severe Weather Association (ASWA) (07) 3390 4812 14 Kinsella St Belmont, Brisbane QLD, 4153 Please report severe thunderstorms on our Queensland severe thunderstorm reporting line on (07) 3390 4218 or by going to our homepage at http://www.severeweather.asn.au +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ To unsubscribe from aussie-weather send e-mail to:majordomo at world.std.com with "unsubscribe aussie-weather your_email_address" in the body of your message. -----------------------jacob at iinet.net.au------------------------------ X-Authentication-Warning: neumann.maths.monash.edu.au: robert owned process doing -bs Date: Thu, 19 Oct 2000 23:42:32 +1100 (EST) From: Robert Goler X-Sender: robert at neumann.maths.monash.edu.au To: aussie-weather at world.std.com Subject: aus-wx: REPORT: Melbourne Weather Sender: aussie-weather-approval at world.std.com Reply-To: aussie-weather at world.std.com Hi all Despite all the storm action around Melbourne, there was bugger all here at Clayton (below the "d" in St Kilda on the local Melb loop). So whilst working on the computer, I downloaded a few things from the net regarding todays weather and literally, dumped them here: http://www.maths.monash.edu.au/~robert/Weather/2000_10_19/today.html I think I've put the items in chronological order. Cheers -- Robert A. Goler E-mail robert at mail.maths.monash.edu.au http://www.maths.monash.edu.au/~robert/ Department of Mathematics and Statistics Monash University Clayton, Vic 3800 Australia -- +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ To unsubscribe from aussie-weather send e-mail to:majordomo at world.std.com with "unsubscribe aussie-weather your_email_address" in the body of your message. -----------------------jacob at iinet.net.au------------------------------ Date: Fri, 20 Oct 2000 10:45:00 +1000 From: Matthew Smith X-Mailer: Mozilla 4.73 [en] (Win98; U) X-Accept-Language: en To: aussie-weather at world.std.com Subject: aus-wx: Illawarra storm and funnel cloud Sender: aussie-weather-approval at world.std.com Reply-To: aussie-weather at world.std.com Hi everyone ! Just thought i'd let everyone know that myself and Daniel Weatherhead saw a funnel cloud comming from the back end of an updraught of the Illawarra multicell. It lasted all of 10 seconds (not enough time to get a photo) but looked like a thin pencil sticking out the bottom, *think of the funnel cloud associated with the tornado on TDU last year, but more pronounced* and then it dissipated. It was about 1/3 of the way to the ground. Yesterday was a great chase, joined by Matt Pearce ontop of a FANTASTIC LOOKOUT at Razorback ridge (i think it was called) just before Picton. 360 degree views, if there is ANY storm to the SW of Sydney, i think this is the lookout to go to. Anyway we watched the storm constantly kick up fresh updraughts on the back end as we watched from the NW corner of the storm. We then continued to Appin, then Bulli Pass to the lookout and watched the storm out to sea. Some interesting cloud features kept us entertained (we thought we had a wall cloud for a moment, but it wasn't. Video/Photos will show it though). and a strange moisture haze along the coast behind the storm was nice to watch. To date this is the best photographic multicell i have seen (for structure photos), lets hope for a few more over the next few weeks :) Plenty of photos of this, will get them done in a couple of weeks when i finish the roll. Matt Smith http://www.sydneystormchasers.com +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ To unsubscribe from aussie-weather send e-mail to:majordomo at world.std.com with "unsubscribe aussie-weather your_email_address" in the body of your message. -----------------------jacob at iinet.net.au------------------------------ From: "Ben Quinn" To: Subject: Re: aus-wx: Upper Air charts via BOM Date: Fri, 20 Oct 2000 10:06:43 +1000 X-Mailer: Microsoft Outlook Express 5.50.4133.2400 Sender: aussie-weather-approval at world.std.com Reply-To: aussie-weather at world.std.com Hi Lyle, everyone They do take a bit of getting used to yes :) That last link was to a site which has pre plotted charts for the surface, 700mb, 850mb, 500mb, 200mb, ocean surface winds and sig wave heights - the direct link to the Australian charts: http://www-pcmdi.llnl.gov/fiorino/wxmap/wx.ausnz.htm In my oppinion, these are the best we have - the contour level is set to 2 (as opposed to 4 with charts from other sites) which enables you to pinpoint the weaker features more easily But if they don't tickle, try this links page http://www.australiasevereweather.com/links/ozcharts.htm Or if you like animations, try this page http://www.bsch.simplenet.com/modelproducts/byregion.htm On another note, i was pleased to wake up to a clearer sky this morning, and a sat pic showing this cloud band thinning out in SE QLD/NE NSW. Although the forecast instability isn't very encouraging, and there still appears to be a lot of mid/upper level moisture, i wouldn't be surprised at some border range storms this afternoon and overnight - maybe some goodies too with a strong jetstream forecast to move over us Oh yeah - if anyone is still reading this email a couple of sunset pics from yesterday http://bsch.simplenet.com/ben/sunset2.JPG http://bsch.simplenet.com/ben/sunset1.JPG ----- Original Message ----- From: "Lyle Pakula" To: Sent: Friday, October 20, 2000 3:16 AM Subject: Re: aus-wx: Upper Air charts via BOM > Hey ben, > > not the most user friendly system :) i'm curious to see if anyone has some > generated links to just lcick and get the 850->200mb pressure/height charts? > > thanks, Lyle > > p.s. over here they have some seriously good information on the web, a pay > site called 'weathertap.com' is phenomonal for nowcasting but there is also > a wealth of other good sites that are well organised and straight forward. > maybe the guys at theweather.com should check out www.rap.ucar.edu/weather > > ----- Original Message ----- > From: "Ben Quinn" > To: > Sent: Wednesday, October 18, 2000 5:02 PM > Subject: Re: aus-wx: Upper Air charts via BOM > > > > Hi Lyle, > > > > > > > > Also, where is the best place for *good* 850 -> 200mb maps for Oz? > > > > > > > NOAA have a great site called READY, where you can plot charts for 14 > > different levels at 6 hour intervals > > > > The AVN forecasts can be found at > > http://www.arl.noaa.gov/ready-bin/arlplot1.pl?metdata=AVN+191+km > > > > And the MRF forecasts > > http://www.arl.noaa.gov/ready-bin/arlplot1.pl?metdata=MRF+191+km > > > > But i would recommend using AVN, as you have 6 hour charts as opposed to > 12 > > hours with MRF, and AVN is updated 4 times daily > > > > If you want a quick rundown of the forecasts and don't have time to plot > > charts on the above URL's, try the PCMDI site > > > > http://www-pcmdi.llnl.gov/fiorino/wxmap/ > > > > > > > > ----- Original Message ----- > > From: "Lyle Pakula" > > To: "aus-wx" > > Sent: Thursday, October 19, 2000 4:31 AM > > Subject: aus-wx: Upper Air charts via BOM > > > > > > > Hi, > > > > > > i was just checking out the upper air charts from the BOM and am curious > > as > > > to what the associated red line is. I'm assuming it's specific humidity > > but > > > the trace goes above 200mb, which i'm used to not seeing?? > > > > > > Also, where is the best place for *good* 850 -> 200mb maps for Oz? > > > > > > Thanks, Lyle. > > > > > > +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ > > > To unsubscribe from aussie-weather send e-mail > to:majordomo at world.std.com > > > with "unsubscribe aussie-weather your_email_address" in the body of > your > > > message. > > -----------------------jacob at iinet.net.au------------------------------ > > > > +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ > > To unsubscribe from aussie-weather send e-mail to:majordomo at world.std.com > > with "unsubscribe aussie-weather your_email_address" in the body of your > > message. > > -----------------------jacob at iinet.net.au------------------------------ > > > > +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ > To unsubscribe from aussie-weather send e-mail to:majordomo at world.std.com > with "unsubscribe aussie-weather your_email_address" in the body of your > message. > -----------------------jacob at iinet.net.au------------------------------ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ To unsubscribe from aussie-weather send e-mail to:majordomo at world.std.com with "unsubscribe aussie-weather your_email_address" in the body of your message. -----------------------jacob at iinet.net.au------------------------------ X-Originating-IP: [141.132.130.125] From: "Leslie Baxter" To: aussie-weather at world.std.com Subject: Re: aus-wx: re: Vic tornadoe. Date: Fri, 20 Oct 2000 01:03:52 GMT X-OriginalArrivalTime: 20 Oct 2000 01:03:52.0822 (UTC) FILETIME=[9D003960:01C03A31] Sender: aussie-weather-approval at world.std.com Reply-To: aussie-weather at world.std.com Hi People I watched last night's late news, both ten and nine, they had a report of the wild weather, tens coverage was the best, but they used the m word and they also said the "tornado" didn't touch the ground, so therefore it was a funnel cloud, but it's getting better. The bloke who took the footage of the funnel cloud had no idea really about wx in general I think. >From: "Peter Newham" >Reply-To: aussie-weather at world.std.com >To: >Subject: aus-wx: re: Vic tornadoe. >Date: Thu, 19 Oct 2000 18:21:08 +1000 > >at around 5:25pm we saw what we thought was a tornadoe touching the ground >to the west of Kilmore, looking from the BOM building.....can anyone else >confirm this???? Not much on 2D or 3D radar??? > >pete > > >-----Original Message----- >From: aussie-weather-approval at world.std.com >[mailto:aussie-weather-approval at world.std.com]On Behalf Of Michael Bath >Sent: Thursday, 19 October 2000 17:53 >To: aussie-weather at world.std.com >Subject: aus-wx: Kiama / Shellharbour storm > > >Hi all, > >I look forward to the reports from our Illawarra storm observers from this >afternoon after a significant looking cell (from radar) went through ! > >I have saved two 64km hires radar loops off the Olympics site: > >One hour loop to 4.40pm local: >http://australiasevereweather.com/temp/200010190540.gif > >One hour loop to 5.40pm local: >http://australiasevereweather.com/temp/200010190640.gif > >regards, Michael > > ============================================================= > Michael Bath mailto:mbath at ozemail.com.au > McLeans Ridges http://australiasevereweather.com/ > NE NSW Australia http://www.lightningphotography.com/ > ASWA Secretary http://www.severeweather.asn.au/ > ============================================================= > > +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ > To unsubscribe from aussie-weather send e-mail to:majordomo at world.std.com > with "unsubscribe aussie-weather your_email_address" in the body of your > message. > -----------------------jacob at iinet.net.au------------------------------ > > +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ > To unsubscribe from aussie-weather send e-mail to:majordomo at world.std.com > with "unsubscribe aussie-weather your_email_address" in the body of your > message. > -----------------------jacob at iinet.net.au------------------------------ _________________________________________________________________________ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com. Share information about yourself, create your own public profile at http://profiles.msn.com. +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ To unsubscribe from aussie-weather send e-mail to:majordomo at world.std.com with "unsubscribe aussie-weather your_email_address" in the body of your message. -----------------------jacob at iinet.net.au------------------------------ From: Blair Trewin Subject: aus-wx: Very cool, wet in NT To: aussie-weather at world.std.com (Aussie Weather) Date: Fri, 20 Oct 2000 14:18:00 +1100 (EST) X-Mailer: ELM [version 2.5 PL2] Sender: aussie-weather-approval at world.std.com Reply-To: aussie-weather at world.std.com It has been very cool and wet today in the Northern Territory. Darwin, with 19.0, equalled its October record minimum this morning, and at last report had only risen to 21.1. This is a long, long way below their October record low maximum of 26.7 (indeed, it's still below the all-month record of 21.7), although with the caveat that it will rise very quickly if the cloud breaks before 9 tomorrow. More exceptional is Tennant Creek, which has been hovering on 12 all day. Their October record minimum is 11.6 (it was 11.6 at 1000 and 1030, but I don't know if it dropped lower in the interim), and their lowest October maximum is 18.5 (although they have had 15.5 in November). Their all-month record is 11.7. There has also been widespread rainfall, with a peak of 93mm at Dun-in-Mirrie, which I think is south-west of Darwin. Blair Trewin +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ To unsubscribe from aussie-weather send e-mail to:majordomo at world.std.com with "unsubscribe aussie-weather your_email_address" in the body of your message. -----------------------jacob at iinet.net.au------------------------------ X-Originating-IP: [203.109.250.97] From: "Paul Graham" To: aussie-weather at world.std.com Subject: aus-wx: Supercell Slides a BIG Disappointment!! Date: Fri, 20 Oct 2000 04:36:14 GMT X-OriginalArrivalTime: 20 Oct 2000 04:36:15.0363 (UTC) FILETIME=[4825AD30:01C03A4F] Sender: aussie-weather-approval at world.std.com Reply-To: aussie-weather at world.std.com Hi all, Unfortunately, the slides from the supercell storm on the night of the 26th of September at Mudgee, did not turn out. A couple of them you can see lightning and make out the base of the cloud but the other 30 odd slides are just blank!!!! I now know that it is probably better to use a much higher film speed. I thought I could get away using the Kodachrome 64 with longer shutter openings but, alas, it only captures the brightest strikes. This is a real disappointment because this storm was one of the most spectacular I have ever seen in terms of structure. Oh well, next time I'll be using at least 200 ASA for lightning!! Paul G. _________________________________________________________________________ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com. Share information about yourself, create your own public profile at http://profiles.msn.com. +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ To unsubscribe from aussie-weather send e-mail to:majordomo at world.std.com with "unsubscribe aussie-weather your_email_address" in the body of your message. -----------------------jacob at iinet.net.au------------------------------ From: "Jane ONeill" To: "Aussie Weather" Subject: aus-wx: Melbourne weather 19/10/00 Date: Fri, 20 Oct 2000 16:49:38 +1000 X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2910.0) Importance: Normal Sender: aussie-weather-approval at world.std.com Reply-To: aussie-weather at world.std.com Afternoon all, If anyone has information regarding Melbourne's weather yesterday (eyewitness reports, pics, video), I am adding it to the MSC October page so that we have a summary of observations on http://www.stormchasers.au.com/oct2000.htm Look forward to items concerning 2, possibly 3 & maybe more funnels over a period of 6 hours yesterday. Feel free to email me privately on cadence at stormchasers.au.com or I can copy it from your email to the aussie-weather list. VICTORIA - drizzle patches and occasional (or-not-so-occasional) tornadoes!! Many thanks, Jane --------------------------------------- Jane ONeill - Melbourne cadence at stormchasers.au.com Melbourne Storm Chasers http://www.stormchasers.au.com ASWA - Victoria http://www.severeweather.asn.au --------------------------------------- +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ To unsubscribe from aussie-weather send e-mail to:majordomo at world.std.com with "unsubscribe aussie-weather your_email_address" in the body of your message. -----------------------jacob at iinet.net.au------------------------------ X-Originating-IP: [203.0.101.2] From: "David Croan" To: aussie-weather at world.std.com Subject: Re: aus-wx: Supercell Slides a BIG Disappointment!! Date: Fri, 20 Oct 2000 16:49:34 EST X-OriginalArrivalTime: 20 Oct 2000 06:49:35.0009 (UTC) FILETIME=[E84EC910:01C03A61] Sender: aussie-weather-approval at world.std.com Reply-To: aussie-weather at world.std.com Paul wrote: >Hi all, >Unfortunately, the slides from the supercell storm on the night of the 26th >of September at Mudgee, did not turn out. That's a shame Paul, as I have never seen anything remotely like that storm (26/9 no 1) before. It was magnificent and quite unlike the beastly HP supercells which we are accustomed to on the east coast. It was very much a 'textbook' classic supercell. I will grab some stills off the video which, although i expect wont look the best, will hopefully be good enough to provide some idea of the structure of that storm. _________________________________________________________________________ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com. Share information about yourself, create your own public profile at http://profiles.msn.com. +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ To unsubscribe from aussie-weather send e-mail to:majordomo at world.std.com with "unsubscribe aussie-weather your_email_address" in the body of your message. -----------------------jacob at iinet.net.au------------------------------ From: paulmoss at tpgi.com.au To: aussie-weather at world.std.com Date: Fri, 20 Oct 2000 17:59:28 +0930 Subject: aus-wx: Darwin Weather X-mailer: Pegasus Mail for Win32 (v3.12a) Sender: aussie-weather-approval at world.std.com Reply-To: aussie-weather at world.std.com Hi all. Following on from Blairs email, it has been rather cool here - I had 48.4 mm at my place till 8am this morning. Great totals all over the place. Great taste of monsoonal weather so early in the season. I dont think that the record will be broken this time as the cloud has stated to clear. What an impressive Low / Trough system it was!! To throw cold air and affect weather 3500kms to the North is somewhat amazing! Paul in Darwin +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ To unsubscribe from aussie-weather send e-mail to:majordomo at world.std.com with "unsubscribe aussie-weather your_email_address" in the body of your message. -----------------------jacob at iinet.net.au------------------------------ From: "Michael Thompson" To: Subject: Re: aus-wx: Kiama / Shellharbour storm Date: Fri, 20 Oct 2000 20:55:38 +1000 Organization: X-Mailer: Microsoft Outlook Express 5.00.2014.211 Sender: aussie-weather-approval at world.std.com Reply-To: aussie-weather at world.std.com Hi Andrew's description of the storm is very much what I saw too. Like Andrew I noticed the inflow scud condensing at very low levels, below hills of only 100m. I was at work until 4.30pm and it was 5.15pm by the time I got home to Mt Warrigal. There was a rain free base right overhead, so I grabbed the camera and headed off NE hopeing to outrun the rain as it had just started letting fly from the base. Fat chance, this storm was moving quicker than the 60km speed limit. I had to settle for Hill 60, must have just missed Andrew. By then the storm was completely over the ocean, but it was nice watching scud from the NE being sucked into the updraft. It was a slighly dissapointing day, I haven't had much of a look at the charts, but there was obvious capping. The low levels to about 1500m were dripping moisture, yet the storms struggled. What was happening was a quick sucession of cells building and collasping with strong outflow, it was this outflow that provided enough lift to get past the capping for the next developing cell. But each cell was slightly weaker then the last and with the line moving out to sea the trigger ( outflow ) was gone and the cumulus left back over land just congested and fell apart, no longer able to penetrate the cap. Storm tops were also very low. Noticed frequent lightning out to sea at 10pm. MIchael > Well, well, well, > It would seem that the Illawarra was the pick for the NSW coast today. I > noticed at 2:30, while making any excuse to leave the office with the > digital camera, that the day seemed to be setting up in a very similar > fashion to the severe hail storm that swept the area on August 1st. The was > a very strong, moist NNE wind, with some low cloud formations along the > escarpment, building in some areas into congestus, which was being sheared > in a SE direction. > > Anyway, 3:30 came, and as I wheeled my bike to the change rooms I could see > the scene was very dark down around the Shellharbour/Kiama regions, with > obvious cumulous towers in the area. At that stage it didn't seem to be very > precipitous, but it was very hard to make out with all the steelworks > discharges heading in the same direction. I rode home as fast as posible, > which was not fast considering there was probably 40-50km of headwind the > whole way. Checked the radar, and didn't even take the time to shut down the > computer before being out the door. > > I headed straight down towards Shellharbour the scene was very ominous. > There was what appeared to be a shelf cloud formation under the cloud base. > On the western side of the main storm area was a good inflow of scud, which > was being picked up from ground level from near the escarpment near Albion > Park/Yellowrock area. I took a couple of pics on the drive across Windang > bridge by holding the digital camera out the car window and over the roof. > Got a few interesting looks to say the least!! > > As I pulled up at Warilla beach it was apparent that the main action area > had already passed out to sea to my SE. I noticed an area of intense shear, > which basically ran SE to NW from the storms out at sea, to an area firing > up near the escarpment. It appeared very much like a cool change, with scud > racing into the zone, then rising very rapidly (almost in a vertical line). > When it was clear that this line wasn't moving my way I headed west towards > the new development. Paul Mosman would be quite jealous of the torrential > rain and wind gusts as I drove through Oak Flats (yes Griffith Street). The > rain at this point was getting about as heavy as I was comfortable driving > at normal speed in. I would definately say getting up towards 40+mm/hr. > Radar seemed to confirm later. > > I continued west until I got to Marshal Mount where I broke into brilliant > sunshine. The rain was heavy all the way to the back end. Again the line of > intense uplift of scud was still there. I noticed some lift from basically > ground level less than 1km in front of me, and within half a minute would've > been over 1km from the ground. I took a couple of pics of the back end of > the storm, which was the last of it for us, before heading north and east to > get to Hill 60. I should mention that lightning discharge on AM radio was > fairly steady at about every 10-15 seconds. > > Again the view from Hill 60 was quite good. Not much in the way of anvil to > se, but I was looking onto the edge of the line which was lifting the low > cloud almost into a vertical line. It then seemed to twist back towards the > SW, before the anvil that I could see forming was heading SE. Got a few good > pics on the digital camera and observed a few CG's out at sea at about > 10-15secs apart. > > The outcome of all this was a lot of heavy rain, it would not seem any hail, > although the line was a lot more intense over land (by radar) earlier than I > could've made it there, and around the Kiama area at my best guess. But it > was very interesting to observe this line of bigtime uplift, which I'm sure > I would be wrong by suggesting some sought of local scale trough line. When > I was at the beach there was definately inflow into this region of uplift > from both a NE and SSW direction, which was what had me thinking southerly > change. Probably a little disappointing about the lack of lightning over > land as well. But, can't complain, better than most of NSW got today. > Send some more of that SA and Vic weather this way will ya!! > > Andrew Godsman > > +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ > To unsubscribe from aussie-weather send e-mail to:majordomo at world.std.com > with "unsubscribe aussie-weather your_email_address" in the body of your > message. > -----------------------jacob at iinet.net.au------------------------------ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ To unsubscribe from aussie-weather send e-mail to:majordomo at world.std.com with "unsubscribe aussie-weather your_email_address" in the body of your message. -----------------------jacob at iinet.net.au------------------------------ Date: Fri, 20 Oct 2000 20:56:04 +1000 From: Keith Barnett X-Mailer: Mozilla 4.6 [en] (Win95; I) X-Accept-Language: en To: "aussie-weather at world.std.com" Subject: aus-wx: Monsoon Sender: aussie-weather-approval at world.std.com Reply-To: aussie-weather at world.std.com "The 30-60 day ISO has had a period of around 50 days. If this periodicity continues, the next enhanced pulse of convection will move into RSMC area during the third week of November, with the possible formation of the monsoon trough in the southern hemisphere. " This extract from the weekly tropical climate update is encouraging.... +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ To unsubscribe from aussie-weather send e-mail to:majordomo at world.std.com with "unsubscribe aussie-weather your_email_address" in the body of your message. -----------------------jacob at iinet.net.au------------------------------ From: "bussie" To: "weather list" Subject: aus-wx: This morning Date: Fri, 20 Oct 2000 21:14:21 +1000 X-Mailer: Microsoft Outlook Express 5.50.4133.2400 Sender: aussie-weather-approval at world.std.com Reply-To: aussie-weather at world.std.com Well this morning was a real contrast to what we've got just lately. Woke up this morning about day break and discovered of all things a fog. Visibility was about 400 metres at the time. Went for my regular spin in the school bus and it detiorated rapidly around 8am with visibility dropping to less than 200 metres in the general area of Chiltern, and Springhurst (SE and South of here) but cleared around 9am and then generally a partly cloudy day although it felt very humid with a top of 23.9 at around 3.15pm Bussie (NE Victoria) +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ To unsubscribe from aussie-weather send e-mail to:majordomo at world.std.com with "unsubscribe aussie-weather your_email_address" in the body of your message. -----------------------jacob at iinet.net.au------------------------------ From: "Michael Thompson" To: Subject: Re: aus-wx: Illawarra storm and funnel cloud Date: Fri, 20 Oct 2000 21:14:32 +1000 Organization: X-Mailer: Microsoft Outlook Express 5.00.2014.211 Sender: aussie-weather-approval at world.std.com Reply-To: aussie-weather at world.std.com Hi Matt Razorback lookout is certainly a great view. I use this lookout a lot. One of these days we will tag onto a supercell from this lookout. There have been quite a few severe storms form just SW of the lookout and then run NE into the city. October 94 ? I think was a classic example. From Razorback you can also get to the southern highlands in less then 30 mins if the action fires there. Michael > Just thought i'd let everyone know that myself and Daniel Weatherhead > saw a funnel cloud comming from the back end of an updraught of the > Illawarra multicell. It lasted all of 10 seconds (not enough time to get > a photo) but looked like a thin pencil sticking out the bottom, > *think of the funnel cloud associated with the tornado on TDU last year, > but more pronounced* > and then it dissipated. It was about 1/3 of the way to the ground. > Yesterday was a great chase, joined by Matt Pearce ontop of a FANTASTIC > LOOKOUT at Razorback ridge (i think it was called) just before Picton. > 360 degree views, if there is ANY storm to the SW of Sydney, i think > this is the lookout to go to. Anyway we watched the storm constantly > kick up fresh updraughts on the back end as we watched from the NW > corner of the storm. We then continued to Appin, then Bulli Pass to the > lookout and watched the storm out to sea. Some interesting cloud > features kept us entertained (we thought we had a wall cloud for a > moment, but it wasn't. Video/Photos will show it though). and a strange > moisture haze along the coast behind the storm was nice to watch. > To date this is the best photographic multicell i have seen (for > structure photos), lets hope for a few more over the next few weeks :) > Plenty of photos of this, will get them done in a couple of weeks when i > finish the roll. > > Matt Smith > http://www.sydneystormchasers.com > > +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ > To unsubscribe from aussie-weather send e-mail to:majordomo at world.std.com > with "unsubscribe aussie-weather your_email_address" in the body of your > message. > -----------------------jacob at iinet.net.au------------------------------ > +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ To unsubscribe from aussie-weather send e-mail to:majordomo at world.std.com with "unsubscribe aussie-weather your_email_address" in the body of your message. -----------------------jacob at iinet.net.au------------------------------ From: "Michael Thompson" To: Subject: aus-wx: Friday's BOM severe storm advice for Metropolitan - warranted Date: Fri, 20 Oct 2000 21:37:10 +1000 Organization: X-Mailer: Microsoft Outlook Express 5.00.2014.211 Sender: aussie-weather-approval at world.std.com Reply-To: aussie-weather at world.std.com I realise that many of the Sydney folks may be disappointed but I think the BOM advice was warranted and it is was good to see them issue one in advance. As Jimmy mentioned we were in a potentially unstable situation with cold air aloft and on the jet stream exit region, and I agree with Jimmy that this was similar to March. The potential was there for greater things, they did not eventuate but the advice was accurate based on the data. Michael Thompson http://thunder.simplenet.com +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ To unsubscribe from aussie-weather send e-mail to:majordomo at world.std.com with "unsubscribe aussie-weather your_email_address" in the body of your message. -----------------------jacob at iinet.net.au------------------------------ Date: Fri, 20 Oct 2000 21:43:08 +1000 From: Jane ONeill X-Mailer: Mozilla 4.5 [en] (Win95; I) X-Accept-Language: en To: Aussie-wx Subject: aus-wx: FUNNELS: Geelong 19/10/2000 Sender: aussie-weather-approval at world.std.com Reply-To: aussie-weather at world.std.com Evening all, For your enjoyment (& to leave you breathless)...... Lindsay Smail (Geelong Weather Services) has collected photos (from 3 different sources) of the funnels over Geelong yesterday. They can be seen at http://www.stormchasers.au.com/19_10_00g.htm I have also added more information to this page - it now includes 10am MSL, CSIRO hires IR image, Eastern Australia IR image, JCU IR loop of SE Australia http://www.stormchasers.au.com/19_10_00.htm A report will be written on the events of the 19th October, 2000. Stay tuned for lots more over the next few days & weeks. Many thanks to Lindsay & GWS for collecting & making these images available to us (and with such incredible speed). Enjoy!! Jane -------------------------------- Jane ONeill - Melbourne cadence at stormchasers.au.com Melbourne Storm Chasers http://www.stormchasers.au.com ASWA - Victoria http://www.severeweather.asn.au -------------------------------- +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ To unsubscribe from aussie-weather send e-mail to:majordomo at world.std.com with "unsubscribe aussie-weather your_email_address" in the body of your message. -----------------------jacob at iinet.net.au------------------------------ X-Authentication-Warning: new-smtp2.ihug.com.au: Host p41-max41.syd.ihug.com.au [203.173.147.169] claimed to be storm.ihug.com.au X-Sender: jdeguara at pop.ihug.com.au X-Mailer: QUALCOMM Windows Eudora Version 5.0 Date: Fri, 20 Oct 2000 22:44:14 +1000 To: aussie-weather at world.std.com From: Jimmy Deguara Subject: Re: aus-wx: Kiama / Shellharbour storm Sender: aussie-weather-approval at world.std.com Reply-To: aussie-weather at world.std.com I must say, Michael you were in the area with the action all over you but you were not able to get out of work early enough. I think you will find this storm system was excellent with powerful boiling updraughts. I stick by the fact that this was a supercell and from the satellite pictures off the coast there was a nice v-notch and flanking line evident. This storm was isolated as well and had nice infeed of moisture. If only the infeed could have been a NE or E rather than N to NNE inflow. That would have provided for good low level directional shear. This was the difference in the March 9 event. The winds were more NE flowing into the storm subsequently leading to the formation of the wall cloud structure. It was less likely in the storm yesterday. What I was suggesting regards the capping was that the drier air must have moved through at 850 hPa level or thereabouts and created the cap. This mean that any chance for action was gone for Sydney. OF course anything that could have taken off would have exploded. You are correct about the updraughts that followed which became weaker. But I hope you did get to see the other ones before that happened Michael. We will show the footage and the photos at the video night Saturday night for those that want to come along. E-mail me privately for details please. Jimmy Deguara At 08:55 PM 20/10/00 +1000, you wrote: >Hi > >Andrew's description of the storm is very much what I saw too. > >Like Andrew I noticed the inflow scud condensing at very low levels, below >hills of only 100m. I was at work until 4.30pm and it was 5.15pm by the time >I got home to Mt Warrigal. There was a rain free base right overhead, so I >grabbed the camera and headed off NE hopeing to outrun the rain as it had >just started letting fly from the base. Fat chance, this storm was moving >quicker than the 60km speed limit. I had to settle for Hill 60, must have >just missed Andrew. By then the storm was completely over the ocean, but it >was nice watching scud from the NE being sucked into the updraft. > >It was a slighly dissapointing day, I haven't had much of a look at the >charts, but there was obvious capping. The low levels to about 1500m were >dripping moisture, yet the storms struggled. What was happening was a quick >sucession of cells building and collasping with strong outflow, it was this >outflow that provided enough lift to get past the capping for the next >developing cell. But each cell was slightly weaker then the last and with >the line moving out to sea the trigger ( outflow ) was gone and the cumulus >left back over land just congested and fell apart, no longer able to >penetrate the cap. Storm tops were also very low. Noticed frequent >lightning out to sea at 10pm. > >MIchael > > > > > > Well, well, well, > > It would seem that the Illawarra was the pick for the NSW coast today. I > > noticed at 2:30, while making any excuse to leave the office with the > > digital camera, that the day seemed to be setting up in a very similar > > fashion to the severe hail storm that swept the area on August 1st. The >was > > a very strong, moist NNE wind, with some low cloud formations along the > > escarpment, building in some areas into congestus, which was being sheared > > in a SE direction. > > > > Anyway, 3:30 came, and as I wheeled my bike to the change rooms I could >see > > the scene was very dark down around the Shellharbour/Kiama regions, with > > obvious cumulous towers in the area. At that stage it didn't seem to be >very > > precipitous, but it was very hard to make out with all the steelworks > > discharges heading in the same direction. I rode home as fast as posible, > > which was not fast considering there was probably 40-50km of headwind the > > whole way. Checked the radar, and didn't even take the time to shut down >the > > computer before being out the door. > > > > I headed straight down towards Shellharbour the scene was very ominous. > > There was what appeared to be a shelf cloud formation under the cloud >base. > > On the western side of the main storm area was a good inflow of scud, >which > > was being picked up from ground level from near the escarpment near Albion > > Park/Yellowrock area. I took a couple of pics on the drive across Windang > > bridge by holding the digital camera out the car window and over the roof. > > Got a few interesting looks to say the least!! > > > > As I pulled up at Warilla beach it was apparent that the main action area > > had already passed out to sea to my SE. I noticed an area of intense >shear, > > which basically ran SE to NW from the storms out at sea, to an area firing > > up near the escarpment. It appeared very much like a cool change, with >scud > > racing into the zone, then rising very rapidly (almost in a vertical >line). > > When it was clear that this line wasn't moving my way I headed west >towards > > the new development. Paul Mosman would be quite jealous of the torrential > > rain and wind gusts as I drove through Oak Flats (yes Griffith Street). >The > > rain at this point was getting about as heavy as I was comfortable driving > > at normal speed in. I would definately say getting up towards 40+mm/hr. > > Radar seemed to confirm later. > > > > I continued west until I got to Marshal Mount where I broke into brilliant > > sunshine. The rain was heavy all the way to the back end. Again the line >of > > intense uplift of scud was still there. I noticed some lift from basically > > ground level less than 1km in front of me, and within half a minute >would've > > been over 1km from the ground. I took a couple of pics of the back end of > > the storm, which was the last of it for us, before heading north and east >to > > get to Hill 60. I should mention that lightning discharge on AM radio was > > fairly steady at about every 10-15 seconds. > > > > Again the view from Hill 60 was quite good. Not much in the way of anvil >to > > se, but I was looking onto the edge of the line which was lifting the low > > cloud almost into a vertical line. It then seemed to twist back towards >the > > SW, before the anvil that I could see forming was heading SE. Got a few >good > > pics on the digital camera and observed a few CG's out at sea at about > > 10-15secs apart. > > > > The outcome of all this was a lot of heavy rain, it would not seem any >hail, > > although the line was a lot more intense over land (by radar) earlier than >I > > could've made it there, and around the Kiama area at my best guess. But it > > was very interesting to observe this line of bigtime uplift, which I'm >sure > > I would be wrong by suggesting some sought of local scale trough line. >When > > I was at the beach there was definately inflow into this region of uplift > > from both a NE and SSW direction, which was what had me thinking southerly > > change. Probably a little disappointing about the lack of lightning over > > land as well. But, can't complain, better than most of NSW got today. > > Send some more of that SA and Vic weather this way will ya!! > > > > Andrew Godsman > > > > +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ > > To unsubscribe from aussie-weather send e-mail to:majordomo at world.std.com > > with "unsubscribe aussie-weather your_email_address" in the body of your > > message. > > -----------------------jacob at iinet.net.au------------------------------ > > > +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ > To unsubscribe from aussie-weather send e-mail to:majordomo at world.std.com > with "unsubscribe aussie-weather your_email_address" in the body of your > message. > -----------------------jacob at iinet.net.au------------------------------ ----------------------------------------- Jimmy Deguara Storm Chaser and Mathematics Teacher from Schofields, Sydney NSW Australia e-mail:jdeguara at ihug.com.au Web Page with Michael Bath Australian Severe Weather Home Page http://www.australiasevereweather.com President of the Australian Severe Weather Association http://www.severeweather.asn.au +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ To unsubscribe from aussie-weather send e-mail to:majordomo at world.std.com with "unsubscribe aussie-weather your_email_address" in the body of your message. -----------------------jacob at iinet.net.au------------------------------ X-Originating-IP: [203.134.125.244] From: "Ben Jerrems" To: aussie-weather at world.std.com Subject: aus-wx: Lightning ! Date: Fri, 20 Oct 2000 22:11:07 EST X-OriginalArrivalTime: 20 Oct 2000 12:11:07.0852 (UTC) FILETIME=[D3BD00C0:01C03A8E] Sender: aussie-weather-approval at world.std.com Reply-To: aussie-weather at world.std.com Hi all? Here is an image i got at 1:30am Thursday morning, Just a small sample will bring more at the next ASWA(vic) meeting. Ben-MSC. _________________________________________________________________________ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com. Share information about yourself, create your own public profile at http://profiles.msn.com. Attachment Converted: "c:\eudora\attach\the blast.jpg" X-Originating-IP: [203.134.125.244] From: "Ben Jerrems" To: aussie-weather at world.std.com Subject: aus-wx: new pics. Date: Fri, 20 Oct 2000 22:37:34 EST X-OriginalArrivalTime: 20 Oct 2000 12:37:34.0243 (UTC) FILETIME=[854D0F30:01C03A92] Sender: aussie-weather-approval at world.std.com Reply-To: aussie-weather at world.std.com Hi again? Just updated my site with a lightning photo, more to come when i get more time. Ben-msc http://communities.ninemsn.com.au/Beanzvision _________________________________________________________________________ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com. Share information about yourself, create your own public profile at http://profiles.msn.com. +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ To unsubscribe from aussie-weather send e-mail to:majordomo at world.std.com with "unsubscribe aussie-weather your_email_address" in the body of your message. -----------------------jacob at iinet.net.au------------------------------ From: "David Findlay" To: Subject: RE: aus-wx: Geelong Tornado! Date: Fri, 20 Oct 2000 07:43:17 +1000 X-Mailer: Microsoft Outlook 8.5, Build 4.71.2173.0 Importance: Normal Sender: aussie-weather-approval at world.std.com Reply-To: aussie-weather at world.std.com

Actually that's good. If we want something bad we need it in the country where it can't hurt anyone.

David

-----Original Message-----
From: aussie-weather-approval at world.std.com [mailto:aussie-weather-approval at world.std.com]On Behalf Of Geelong Weather Services
Sent: Thursday, 19 October 2000 6:48 PM
To: aussie-weather at world.std.com
Subject: RE: aus-wx: Geelong Tornado!

As someone said "News of our tornado has been greatly exaggerated." Geelong experienced several spectacular funnel clouds, forming then dissipating, over and over, between 12.30 pm and 2 pm today. Some good footage on TV and picture in tomorrow's Geelong Advertiser. Forming mainly over the urban area, I think most people were so excited at seeing a possible tornado that rumours were spread pretty quickly. Clear rotation and definitely something to draw our attention to the increasingly frequent occurrences of severe storms in this area, but not a tornado! Sorry to disappoint you, but no injuries, no damage and no F rating. Lindsay Smail.

-----Original Message-----
From: aussie-weather-approval at world.std.com [mailto:aussie-weather-approval at world.std.com]On Behalf Of David Findlay
Sent: Thursday, 19 October 2000 4:35 PM
To: aussie-weather at world.std.com
Subject: RE: aus-wx: Geelong Tornado!

Any pictures? what F rating? Any injuries?

David

-----Original Message-----
From: aussie-weather-approval at world.std.com [mailto:aussie-weather-approval at world.std.com]On Behalf Of Dean Sgarbossa
Sent: Thursday, 19 October 2000 5:13 PM
To: aussie-weather at world.std.com
Subject: aus-wx: Geelong Tornado!

Hello all,

Well, what an exiting day for us Victorians and NSW residents. Watching thunderstorms consistently roll through from the N all night and the sweet glissining sound of thunder as well as a bloody great light show, I was awaken by the loud crack of thunder at about 2-3 am. Lightning was amazing, almost constant.

Anyway, moving on, just got back from school where we received a severe storm warning advising us to leave school at once and return home. From a number of sources, I have come to the realization that an apparent tornado occured in Geelong causing quite a considerable amount of damage. A news brief just came on showing some great footage of the apparent tornado. Can anyone else confirm? Lindsay?

From: chris.nitsopoulos at jcu.edu.au X-Authentication-Warning: brutus.jcu.edu.au: nobody set sender to jc124783 at jcu.edu.au using -f To: aussie-weather at world.std.com Subject: Re: aus-wx: Monsoon, Where is it now? Date: Fri, 20 Oct 2000 23:16:45 +1000 (EST) User-Agent: IMP/PHP IMAP webmail program 2.2.3 X-Originating-IP: 203.21.229.190 Sender: aussie-weather-approval at world.std.com Reply-To: aussie-weather at world.std.com This is by all means very encouraging, I was wondering where exactly is the trough right now and how can I find out where it is? ( is there a MSL chart I can view that shows the tropical region of the world?) Cheers: Chris Nitso > "The 30-60 day ISO has had a period of around 50 days. If this > periodicity > continues, the next enhanced pulse of convection will move into RSMC > area > during the third week of November, with the possible formation of the > monsoon > trough in the southern hemisphere. " +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ To unsubscribe from aussie-weather send e-mail to:majordomo at world.std.com with "unsubscribe aussie-weather your_email_address" in the body of your message. -----------------------jacob at iinet.net.au------------------------------