Storm Australian Severe Weather Forum

Severe Weather Discussion => Australian Severe Storms, Weather Events and Storm Chasing => Topic started by: David C on 25 November 2008, 12:41:16 PM

Title: SA / VIC / NSW / QLD Storms: 26-29 November 2008
Post by: David C on 25 November 2008, 12:41:16 PM
Well, may as well open a thread now. Looks quite interesting as it stands, Friday in particular -- a very broad area or moderate to strong instability under the nose of very strong mid level jet, and monster upper level flow with virtually the entire state of NSW under > 80 knot winds.  Will be worth watching this, even for us hapless souls in central eastern NSW who have discovered a new frontier in abject stormlessness.

Thursday is the 'day before' here in Sydney, and history tells us that it is very often a good chase day. Stay tuned.

While on Thursday, the current GFS run has a shear profile conducive to tornadoes, possibly strong tornadoes in the area around Woomera in SA around peak heating. Forgetting about the thermonuclear CAP and possibly too-high dewpoint deficits that is. This is a very dynamic system, things will change, but this really could get quite exciting.   

currently for SA >> [attached image]

Title: RE: SA / VIC / NSW / QLD Storms: 26-29 November 2008
Post by: Michael Thompson on 25 November 2008, 03:37:42 PM
I must admit that the thing I like about the the coming setup is the wind shear. For those based in Sydney/Illawarra Friday appear to be the big day with a modest kilometre trip west of the divide.

At this stage only the surface wind is lacking, but if we can get 15-20 knots out of the north we may see some 'supercell' potential here in NSW too.

Still early days and the models have been jumping around a little.
Title: RE: SA / VIC / NSW / QLD Storms: 26-29 November 2008
Post by: Michael Thomas on 26 November 2008, 04:02:02 AM
Great to see the possibility of storms just when I finally arrive back to Australia. This system certainly is something to watch but going by GFS currently things are not quite right. I would agree that the shear in SA looks quite spectacular but I would think that LCL's will be way too high if GFS is to believed. On a side note, here in New Zealand, there was an amazing shear profile in the evening over the north island with NE surface winds, a 50-60 knot N'ly lower level jet being over run by a 70 knot NW'ly mid level jet. Shame there was no CAPE due to lousy lapse rates!!

Michael
Title: RE: SA / VIC / NSW / QLD Storms: 26-29 November 2008
Post by: Kristy Norman on 26 November 2008, 01:10:58 PM
I'm staying with my family until Sunday who live 80km north west of Albury. 
Ahhh....the anticipation!!!!
I can't wait to move back here in January as we don't very often get any ripper Summer storms over on the west coast. They develope inland just far enough away to tease until the seabreeze comes in and pushes them away.
Bring it on!
Title: RE: SA / VIC / NSW / QLD Storms: 26-29 November 2008
Post by: teckert on 26 November 2008, 06:28:49 PM
David, can you update on how things are looking in your opinion for the Woomera area and nearby for Thursday?
Main reason being is that I am on holidays atm, and if its worthwile I might head up that way.... it would obviously have to be worth it for the drive...
Title: RE: SA / VIC / NSW / QLD Storms: 26-29 November 2008
Post by: Jimmy Deguara on 27 November 2008, 06:32:12 AM
Hi guys,

The region around Central and Southern Victoria looks half decent for severe storms this afternoon (26th November 2008) if moisture is able to penetrate. I think there is a good possibility of low level rotation as often occurs in these cases when these conditions occur with north east winds tending to northerly to 850hPa level. One to watch anyway especial if any chaser can chase along the surface boundary. Yes the upper level support may not as strong as we would like but that does not rule out storm scale rotation.

Regards,

Jimmy Deguara
Title: RE: SA / VIC / NSW / QLD Storms: 26-29 November 2008
Post by: David C on 27 November 2008, 07:47:04 AM
Tim, as you would probably agree, you would have to be very keen to go for a drive given the distances involved.

LAPS looks very hot and dry over SA for the most part, and given that GFS performance has been the worst I have ever seen it this year, especially regarding boundary layer moisture, I would expect that to be the case. Both models develop surface low pressure in WA through weds, but 12z GFS progs an elongated low thurs with a reasonably impressive isallobaric response with deep and solid NNE infeed, around 20 knots, and moisture advection contributing up to and around 2000j/kg convective energy during the late morning (of course GFS is most probably pulling those numbers out of its backside).

With LAps moisture basically does not get in to SA except western border. Whatever model you choose, through the afternoon though, intense heating and mixing come into play and makes the situation worsen.

I think there will be some interesting storms around, and it is worth watching. Incidentally, going by mesolaps just now, the best chance for tornadoes would be in the strongly backed flow near the coast around Eucla, or thereabouts. The LAPS shear profiles progged for that area are very impressive during the morning and afternoon, although moist sfc parcels have a cool marine origin.

Still looking ok for further east across NSW at this stage for Thursday and Friday.

  
Title: RE: SA / VIC / NSW / QLD Storms: 26-29 November 2008
Post by: Michael Bath on 27 November 2008, 09:16:22 AM
Some interesting cells over N inland NSW and S inland QLD now (3pm-ish 26/11).

The Moree sounding is nice - good lapse rates and shear and an ideal moisture profile. Main downside will be the low topped nature of storms.
Title: Re: SA / VIC / NSW / QLD Storms: 26-29 November 2008
Post by: Shaun Galman on 27 November 2008, 10:18:35 AM
Hi guys,

MB: I'm just keeping an eye on the line of storms that are currently between Bourke and Brewrrina on radar. They seem a little further North than I would like but it's early days yet :D

We are still well in the BoM severe storm warning area at this point.

I can't quite see anything here as yet except the isolated Cu's. I wish I could get out onto one of the high west facing ridges for a better view? I'll definitely keep an eye out though.

I can actually get out there now as I finally have the clutch plate/gear box fixed in the Nissan. I'll be mobile once again! :D
Temps are up, pushing 36ºc currently and humidity feels high (no current observations available for us on the BoM for some reason?)

Kindest regards,
Shauno
Title: Re: SA / VIC / NSW / QLD Storms: 26-29 November 2008
Post by: David Brodrick on 27 November 2008, 04:12:07 PM
Very severe cell heading into Wee Waa now (~11:00 UTC).

It's a long lived cell which has come all the way up from the far side of Coonamble. Looks like a hook echo for several RADAR frames. Very heavy core. From Narrabri I can see flashes about every 3 seconds.

Comes on top of a storm earlier today which apparently dropped substantial hail on Wee Waa.
Title: Re: SA / VIC / NSW / QLD Storms: 26-29 November 2008
Post by: teckert on 27 November 2008, 06:15:03 PM
Thanks for your thoughts David... yes after doing 3500 kms roaming the NSW countryside last week for storms (must get some pics & report up), I'd have to say I dont really feel like another long drive... I'm hoping we might see at least 1 or 2 storms come a bit closer to Adelaide in the next day or 2 but wont be holding my breath!

Despite me getting some decent storms in the Wee Waa/Narrabri area this time last week, it still annoys me greatly when you see what they got today and atm.... Some very good chasing territory out there at Burren Junction where that red core is just going through!!!
Title: Re: SA / VIC / NSW / QLD Storms: 26-29 November 2008
Post by: Michael Bath on 28 November 2008, 01:15:42 AM
Also golf ball sized hail and damage at Coonabarabran around 5.30pm, and wind gusts up to 113km/h at Moree just after midnight. I'll do up a radar loop. One of those afternoons to be on the Plains !

Title: Re: SA / VIC / NSW / QLD Storms: 26-29 November 2008
Post by: David Brodrick on 28 November 2008, 04:05:00 AM
We just got emailed a report from Wee Waa mentioning hailstones "like ping-pong balls, no exaggeration". The report said that even trucks have dents in them.

Namoi Cotton's AWS at Yarraman a little west of Wee Waa registered about 45mm between 10pm - 1am.
Title: Re: SA / VIC / NSW / QLD Storms: 26-29 November 2008
Post by: Michael Thomas on 28 November 2008, 05:57:01 AM
Today is looking not too bad for storms around NSW and Vic (also SA as well). Just a shame the dp's are so low. It is rather unfortunate this system is moving though so soon after the recent cold/dry weather. Along the east coast, shear is generally very good with deep NE low level flow with strong mid/upper level flow. The deep NE low level flow is resulting in excellent moisture depth (from the surface to almost 800 mbar on the morning sounding for Sydney). The air aloft is very cold for this time of year (-16C at 500 mbar in the morning sounding for Sydney) which will result is some modest CAPE even with the low surface dp's. With some luck we will see a decent increase in low level moisture during the day and hopefully a few nice storms in the afternoon as well.

Michael
Title: Re: SA / VIC / NSW / QLD Storms: 26-29 November 2008
Post by: Peter J on 28 November 2008, 06:20:09 AM
Currently cloudy but very hot in the east of Melb at the moment - couple of nice storms developed south of Dandenong yesterday afternoon - did see one CG - a forkie too!!

Maybe a bit too warm for severe storms in Melb east this early on, but weather does like to change quickly - also a cold front is expected sometime by tomorrow morning here.

Big Pete
Title: Re: SA / VIC / NSW / QLD Storms: 26-29 November 2008
Post by: Michael Bath on 28 November 2008, 08:14:58 AM
Here's the radar loops for the afternoon of the 26th and overnight to the 27th.

---> Moree 128km scale loop (http://australiasevereweather.com/storm_news/2008/radar/20081126/moree128.htm)

---> Moree 256km scale loop (http://australiasevereweather.com/storm_news/2008/radar/20081126/moree256.htm)

Title: Re: SA / VIC / NSW / QLD Storms: 26-29 November 2008
Post by: David C on 28 November 2008, 08:19:47 AM
Intense left moving thunderstorm, (I would almost certainly say a supercell) on Woomera radar heading east will pass just to the south of Maree. 200km out and with black on BoM radar at 3:00UTC. There is really juicy air to the north around Moomba with dps ~ 19 or 5C higher than around Marree. Problem is no obs, no radar....who knows.

Might have been worthwhile afterall Tim!
Title: Re: SA / VIC / NSW / QLD Storms: 26-29 November 2008
Post by: teckert on 28 November 2008, 09:37:23 AM
hehe....
Here are some VERY impressive obs from Maree!!!  :o
http://www.bom.gov.au/products/IDS60801/IDS60801.95480.shtml

128km/hr wind gusts!!

Looks like it may have caused damage to the AWS as its no longer reporting...
Title: Re: SA / VIC / NSW / QLD Storms: 26-29 November 2008
Post by: Carlos E on 28 November 2008, 09:56:02 AM
Ugh, that's gotta be some strong downbursts.

I was hoping Adelaide would get some activity for once. :(
Title: Re: SA / VIC / NSW / QLD Storms: 26-29 November 2008
Post by: teckert on 28 November 2008, 10:25:09 AM
Storm just off the metro coast now Carlos.... ;)

I see melb have some massive storms atm....
Title: Re: SA / VIC / NSW / QLD Storms: 26-29 November 2008
Post by: Richary on 28 November 2008, 11:41:54 AM
Sydney radar is ineresting at the moment with 2 severe warned storms (both well west of the metro area) heading NNE (near Bathurst and Bilpin). While another cell near Jenolan is tracking ESE. Unfortunately that one seems to be weakening as it goes or it might have managed to hang a bit of a left at some point and give me some action here. Other good cells firing up west of Goulburn though so there is hope. And yes, Melbourne radar looks interesting at the moment though.
Title: Re: SA / VIC / NSW / QLD Storms: 26-29 November 2008
Post by: Peter J on 28 November 2008, 02:39:41 PM
Copped a few good storms in Melbourne this arvo. The cell that passed over Clayton (SE suburbs) - left 15mm in 25 mins with flash flooding causing problems and a few CGs cut power to homes in the area.
Drove in the coach through heavy rain from East Doncaster to Nunawaing, and after work drove on Eastlink from Canterbury Rd thru Ringwood Bypass in storms with large rain drops - very heavy again.
Reports from colleagues of 2-3cm hail falling for 5 mins in Burwood East and Glen Waverley.
Without a decent digital camera, caouldn't get any pics. Was greeted by 3 crawlers when the first storm arrived around 3.40pm in Ringwood looking south.
The severe warning for Central is now cancelled, but still remains for gippsland and NE alpine regions of VIC - nice mushroom type cloud set in sunset backdrop to the NE from home affecting the Mt Buller region - they've had 20mm in 10 mins from recent storm.

Fro those out there in these storms, please take care.

Big Pete
(btw - these storms are not unusual for this time of year - late Spring/early Summer is severe storm season for Melb and NE VIC)
Title: Re: SA / VIC / NSW / QLD Storms: 26-29 November 2008
Post by: Jeff Brislane on 28 November 2008, 02:40:14 PM
I was out earlier watching the likely Low Precipitation Supercell that tracked north east from Kurrajong towards Newcastle. It sure was a nice looking uypdraft for quite a long time and it died in typical L.P. fashion and I'm keen to see some images from closer up.

Tonight there was another nice left moving cell that just hit Katoomba. It had a nice pendant shape on radar and is also likely a supercell. As are quite a few other cells today in N.S.W., S.A. and Victoria. Another notable cell struck Crookwell head on and I hope Michael Thompson was down there!

Regards Jeff.
Title: Re: SA / VIC / NSW / QLD Storms: 26-29 November 2008
Post by: Brad Hannon on 28 November 2008, 04:54:00 PM
Couple of very nice storms in Melbourne region, just hope Brad got onto them.

So John, do you want the good news or the bad news? haha.  Its official - you are the Victorian jinx!  We certainly had some very good storms here this arvo and evening.  Discussion on WZ forum was for conditions were up to -5 LI's and cape around 1000.  With cooler air aloft, Melb and surrounds had some high reflectivity storms and a few with relatively large hail reported contributing to the reflectivities.

I observed est. 2cm hail on the Tulla fwy in Melb inner NW at 16.30'ish from a short lived cell shortly after reports over the radio of 'ice cube' size hail covering the boutique shopping strip of Chapel St Prahran on the other side of town which fell from a strong persistent cell.  Cant say I've heard the NOAA radio in the USA warn of 'ice cube' hail before!  As I drove home on the Northern Ring Road I observed high based storms with large scale suspended hail shafts to the NE.

At home an hour later and convection was in full swing.  There was constant rumbling from a messy cell overhead in the northern suburbs and at 17.45 I witnessed a powerful 'canon' cg land amongst the Bundoora shopping area with an immediate LOUD crack of thunder.  It was the first CG from this storm and I had a feeling it would be the last - it was.

I made my way north to get out of the suburbs, expecting further development away from the seabreeze.  Sure enough I was greeted shortly with a developing cell with a few CG's, the occasional CC and tall hail shafts.  It was moving easterly as expected and fast development saw this cell organise and take on some physical characteristics that got my attention including some obvious inflow features and even a hint of corkscrewing as it interacted with another cell which was raining heavily ahead of it to the east.  Scud developed from below and lowered the base of the storm significantly as it approached Whittlesea.

I arrived in a sunny Whittlesea 5 mins after the storm and observed widespread hail fog (have not seen as much in Vic before), hail drifts on the road, grass and in the fields.  A minute or so further into the town and water was lapping at the sides of the road.  I didnt stick around to see if there was any flooding in town because the cell was looking quite impressive to my right (east).  My observations as I was driving were a possible ever-growing inflow tail (bordering on a beaver tail but still not sure) to the north of the cell, base features that appeared to become more significant below the updraft region and what appeared to be a flanking line to the south (again not sure about this).  I got a few quick snaps without stopping and although I new the terrain to the East was not good for chasing I decided I had no option but to try.  Alas, apart from fleeting glimpses of the cell which impressed me, I never got another good chance to assess the true nature of this storm as it moved into the ranges despite chasing it for over an hour to Healesville in Melbournes NE.

Here are my only pics.  The first few show the hail fog, drifts and flooded roadside.  I've included a pic that is badly blurred but it gives an idea of the hail cover in Whittlesea.  The rest show some of the features of the cell as I drove. Disappointed not to bag some lightning at dusk or after dark, oh well.




Title: Re: SA / VIC / NSW / QLD Storms: 26-29 November 2008
Post by: Brad Hannon on 28 November 2008, 04:56:26 PM
and another few pics as the storm moved east into the ranges and out of my reach :(
Title: Re: SA / VIC / NSW / QLD Storms: 26-29 November 2008
Post by: Jimmy Deguara on 28 November 2008, 05:00:35 PM
Hi guys,

Was not able to get onto the LP supercell that headed towards the Cessnock area this afternoon on time. Took the family along so that slows things down - traffic also did not help. I should have stopped near Mulbring for a quick picture - the structure was half decent here.

Here are some pictures (including the cell heading to Muswellbrook). The cell breaks down in true LP fashion so although the cell was small, the latter picture shows a much smaller shrinking and weakening LP. I have a few minutes of timelapse showing the demise! It should be able to show the rotation.

(http://australiasevereweather.com/photography/thumbs/2008/1127jd05.jpg) (http://australiasevereweather.com/photography/photos/2008/1127jd05.jpg)

(http://australiasevereweather.com/photography/thumbs/2008/1127jd07.jpg) (http://australiasevereweather.com/photography/photos/2008/1127jd07.jpg)

(http://australiasevereweather.com/photography/thumbs/2008/1127jd12.jpg) (http://australiasevereweather.com/photography/photos/2008/1127jd12.jpg)

(http://australiasevereweather.com/photography/thumbs/2008/1127jd13.jpg) (http://australiasevereweather.com/photography/photos/2008/1127jd13.jpg)

All photos for 27 November 2008 (http://australiasevereweather.com/photography/photos/2008/jd20081127.html)

Regards,

Jimmy Deguara
Title: Re: SA / VIC / NSW / QLD Storms: 26-29 November 2008
Post by: Michael Bath on 29 November 2008, 02:37:03 AM
Mike Fewings has added doppler and 64km images where available to his archives:

http://radar.strikeone.net.au/?fuseaction=loops.select&displayitem=1

Title: Re: SA / VIC / NSW / QLD Storms: 26-29 November 2008
Post by: Michael Thomas on 29 November 2008, 02:58:59 AM
Great stuff, nice LP supercell there. I guess that an LP supercell is not too surprising given that the main thing lacking yesterday was low level moisture. Certainly lapse rates were very steep and shear was quite strong with excellent turning from the surface to 2km or so. Sounds like an excellent storm in SA as well. The obs for Marree Airport are very interesting, the winds were gusting over 100km/hr for 15min which is quite impressive. LCL would have been very high with the obs showing 37/15 which gives a LCL of almost 3000m. This probably helped enhance downdraft strength.

Today also looks interesting. Out west in the upper and lower western districts LI's are forecast to get to around -7. In this area speed shear is very strong, however, there is no turning in the lower levels. Personally, going off the latest GFS I like the Riverina and SW slopes. Around this area GFS has quite deep NE low level flow. This results in excellent shear and combined with some decent CAPE could give some quite nice storms. Attached are some forecast soundings for 03z and 06z, they are not the exact same location but pretty close.

There are certainly other places worth keeping an eye on as well (such as the northern rivers and mid north coast were shear and low level moisture are good, but warmer air aloft) as there is at least some instability forecast for almost the entire NSW.

Michael


Title: Re: SA / VIC / NSW / QLD Storms: 26-29 November 2008
Post by: habs on 29 November 2008, 04:28:15 AM
Some photos from my chase out to orange-bathurst area yesterday.

These are of a supercell that was just east of Black Springs


(http://sydneystormchasers.com/system/files/images/08-11-27-03ms.preview.JPG)

(http://sydneystormchasers.com/system/files/images/08-11-27-02ms.preview.JPG)

(http://sydneystormchasers.com/system/files/images/08-11-27-04ms.preview.JPG)

(http://sydneystormchasers.com/system/files/images/08-11-27-06ms.preview.JPG)

Matt
Title: Re: SA / VIC / NSW / QLD Storms: 26-29 November 2008
Post by: Kristy Norman on 29 November 2008, 04:30:08 AM
We currently have a severe thunderstorm warning coming across the Riverina. Yesterday afternoon we copped a storm about 3:30pm, and almost choked on the dust before it hit. Lots of CG's and booming thunder. Rain would be really appreciated here, It's so dry.  I don't think the farmers will be able to tough it out another year, bit sad here really. But things are looking good for today.
Title: Re: SA / VIC / NSW / QLD Storms: 26-29 November 2008
Post by: Michael Thomas on 29 November 2008, 06:37:52 AM
Nice photos Matt, great structure. SW slopes are not looking great at the moment, surface winds are out of the north and dp's are around 14C. Unfortunately there is messy rain to the west. I think when this line hits the better low level moisture it might intensify, however, the chance of nice isolated storms is not good.

Such a wide area with the potential for storms today, maybe areas to the north will produce the goods.
Title: Re: SA / VIC / NSW / QLD Storms: 26-29 November 2008
Post by: Jimmy Deguara on 29 November 2008, 06:40:05 AM
Hi Matt,

Well done! Very nice structure there. What times are we talking? Seeing features as you see in your photograph certainly tops off a storm chase.

The storms yesterday were rather low topped and that was also to be expected given the relatively warmer temperatures in the upper levels. In the last photograph, it seems the shear is pushing it right over.

Regards,

Jimmy Deguara
Title: Re: SA / VIC / NSW / QLD Storms: 26-29 November 2008
Post by: Jimmy Deguara on 29 November 2008, 06:43:46 AM
Michael,

There are many chasers who are/were pumped up for today. I am not as enthused personally given the upper level warming that has taken place. I like to see things going the other way. I agree if moisture and other conditions are right, then SW NSW would be ideal. During the night and into tomorrow may be interesting as the upper trough begins to make its impact. Then of course the air begins to become depleted of moisture. Welcome to Australia.

Regards,

Jimmy Deguara
Title: Re: SA / VIC / NSW / QLD Storms: 26-29 November 2008
Post by: Michael Thomas on 29 November 2008, 07:00:43 AM
Jimmy,

I agree, mid-level warming is not good. 500mbar temps are up to -6C over SE Qld which is far too warm. Further south its not that much better. Shear and low level moisture is still good and if things go well I still believe there could be so nice storms about. I don't like seeing potential storm days providing nothing more than widespread thundery rain.
Title: Re: SA / VIC / NSW / QLD Storms: 26-29 November 2008
Post by: Brad Hannon on 29 November 2008, 07:21:48 AM
Fantastic structure Matt (Habs)!  and Nice LP there Jimmy - I hope the family can read road maps and navigate well (better than Ray anyway!!).

I have read on WZ that Ruckle observed the same storm I was on north of Melbourne last evening.  I cant see his pics here at work for some reason, but his description matches a lot of what I saw and he goes as far as describing a wall cloud feature and funnel, neither of which I saw at the time.  Here is his post:

http://forum.weatherzone.com.au/cgi-bin/ultimatebb.cgi?ubb=get_topic;f=17;t=000475;p=6#000080

Title: Re: SA / VIC / NSW / QLD Storms: 26-29 November 2008
Post by: Ben on 29 November 2008, 07:57:11 AM
Great shots Jimmy and Habs!!!! Well done on the score Habs heard your car didn't do too well though. I was up at C coast for avo with gf and could see that original storm (maybe the LP?) heading up towards Cessnock from the backend. Then that Blackheath/Black springs storm you got passed nearby and could see a similar feature on the front of it at first as your photo shows, before it carked itself pretty quickly. Would have liked to have gotten out yesterday but exams and work did not permit unfortunately.
Title: Re: SA / VIC / NSW / QLD Storms: 26-29 November 2008
Post by: David C on 29 November 2008, 08:10:12 AM
Michael,

There are many chasers who are/were pumped up for today. I am not as enthused personally given the upper level warming that has taken place.

Yes I agree today is pretty uninteresting for severe storms -- look forward to some rain and maybe some thunder while at dinner tonight in the city.  As for the approaching shortwave (tomorrow) - what a waste, very disappointing!

Yesterday's radar alone was very interesting in showing different storm tracks; left and right movers, one moving more sharply left along a boundary towards the Hunter. Others being dominated by the flow. Textbook stuff. Prompted me to take the long road home and go for a sniff around the outer west after work at ~ 6:30pm. Out the door and the immense anvils painted a grim picture for Sydney metro's chances. Nevertheless, I drove down the M4 hoping to at least see a base over the higher parts. It was pretty obvious that the intense cell (the one near Golspie et al) had collapsed into a mess, while the cell to its north had intensified some with nice cloud streets, inflow stinger and a rfb over the BMs. After a few minutes I felt something was missing - yes, lightning! I was amazed at an almost complete lack of visible lightning, and indeed very little static was audible with this storm. Very weird indeed and convection looked reasonably deep, at least the first LP that tracked towards Cessnock. Matt's photos above suggest it was on the shallow side so perhaps that was part of the reason.

While the chance of isolated storms is very remote for Sydney area this evening, the CGs should be better than yesterday.

btw,  nice pics guys!
Title: Re: SA / VIC / NSW / QLD Storms: 26-29 November 2008
Post by: Jeff Brislane on 29 November 2008, 08:29:34 AM
The LP north of Sydney yesterday. All up this event has dissapointed for eastern N.S.W. in some ways but there has still been some nice structured storms. Did anyone see the cell yesterday that went on to hit Crookwell? The second image is the same storm a bit earlier in it's life.
Title: Re: SA / VIC / NSW / QLD Storms: 26-29 November 2008
Post by: Richary on 29 November 2008, 12:51:21 PM
The storm front moved over here late afternoon with a bit of lightning up in the clouds but only one nearby strike (didn't see it hit, saw the flash and the thunder about 2 seconds later). Fairly heavy rain for a little while, total 10mm here at Rydalmere.

All cleared up again now, hopefully something else will come along later tonight.
Title: Re: SA / VIC / NSW / QLD Storms: 26-29 November 2008
Post by: Shaun Galman on 29 November 2008, 01:05:01 PM
Hi all,
I'm just about to head on out with Russ as we have a rather menacing looking bit of weather on approach now!
The power is flickering so I will go offline and return with my report and hopefully some shots when I can!

Regards,
Shauno
Title: Re: SA / VIC / NSW / QLD Storms: 26-29 November 2008
Post by: Mike on 29 November 2008, 03:15:16 PM
Great posts by all and in essence whether the conditions seemed a little 'off' for some, for those of us that don't get to witness these kinds of structured storms it's quite enthralling to see the photos.  Enjoy the reports and good luck Shauno with the chasing currently in your area also.
Title: Re: SA / VIC / NSW / QLD Storms: 26-29 November 2008
Post by: Harley Pearman on 29 November 2008, 03:23:22 PM
In addition to the storm events it appears that there was a specific storm event around Tamworth today after 9 am 28/11/2008. Judging by the the rainfall totals topping 79 mm at the Tamworth Airport, 71 mm at nearby Weabonga and falls of 40 to 70 mm centred around Tamworth, it would be interesting to see what happened here. The figures are in stark contrast when compared to the surrounding region.

I was ready to do some chasing and storm photography after work today but the storm event finished up being somewhat disappointing.

A squall line with severe thunderstorm warnings on it for damaging wind and heavy rain was barrelling towards western Sydney after 4 pm but by the time it reached the Parramatta area, it had weakened out to thundery rain. There was some lightning to start with including 1 observed cloud to ground lightning strike but the lightning flashes soon petered out to nothing.

Highest totals from it included 18 mm at Fairfield City Farm, 12 mm at Seven Hills and West Pennant Hills and 10 mm at Willmot. The rest of the Sydney scored anywhere between 4 and 9 mm with lighter falls toward the coast. The system seem to weaken as it crossed the Sydney Basin.

On another note, I was at Regents Park between 12.30 and 1 pm 28/11/2008 and the locality experienced a heavy downpour for a short period of time but no thunder was heard.

Harley Pearman
Title: Re: SA / VIC / NSW / QLD Storms: 26-29 November 2008
Post by: Dave Nelson on 29 November 2008, 04:29:04 PM
Hi gang,
             
Thur, 27th Nov. I chased the cell that went across Kurrijong and up across the Hawkesbury
I didnt chase too far up the Putty Rd as places to view from become non-existant cuz of the bush.

coming back down to Windsor I could see 2 more cells over the mountains.  one was over Katoomba
and the other some-what closer and over the edge of the mountains. 
This is the one I viewed and photo'ed for some time from the Northern Rd (south of Penrith and M4)
It had a nice low precip base and looked much like the one Jimmy saw further north.

cheers
Dave N
Title: Re: SA / VIC / NSW / QLD Storms: 26-29 November 2008
Post by: Brad Hannon on 29 November 2008, 05:31:42 PM
I have read on WZ that Ruckle observed the same storm I was on north of Melbourne last evening.  I cant see his pics here at work for some reason, but his description matches a lot of what I saw and he goes as far as describing a wall cloud feature and funnel, neither of which I saw at the time.

ooh...quoting myself, that's a worry

I have now seen the pics by Ruckle on WZ I mentioned earlier and they do show some interesting features including a possible funnel that I had also seen (from a bit further away) prior to taking any of my pics and had amazingly forgotten to describe it in my report earlier in this thread.  I now am quite confident that we had a rapidly developed rotating updraft complete with wall cloud, funnel and inflow tail as described and documented in posts by myself (Hamlan) and Ruckle on WZ in this thread here:

http://forum.weatherzone.com.au/cgi-bin/ultimatebb.cgi?ubb=get_topic;f=17;t=000475;p=6#000089

The radar archive shows the cell erupt after coming off the Macedon Ranges at 06.30UTC just to the east of Macedon.  By 07.30UTC I am wondering if it is displaying a left move because it seems to alter from a SE track to E toward Kinglake and then back to ESE which it then maintains.  The radar also corresponds with my observations at that time and location when the updraft base structure was visible - radar shows the high reflectivities at the NW extreme of the storm (rather than embedded which usually occurs here!) which is exactly where I was looking.

Based on the persistent updraft region that I witnessed for over half an hour and some evidence of rotation, a possible left move and my and Ruckle's pics, I'm starting to think this was a supercell or certainly pretty close by definition.  What do others think of this possibility?

---> Melbourne radar loop (http://australiasevereweather.com/storm_news/2008/radar/20081127/melbourne128.htm)

Title: Re: SA / VIC / NSW / QLD Storms: 26-29 November 2008
Post by: Richary on 29 November 2008, 07:12:38 PM
A squall line with severe thunderstorm warnings on it for damaging wind and heavy rain was barrelling towards western Sydney after 4 pm but by the time it reached the Parramatta area, it had weakened out to thundery rain. There was some lightning to start with including 1 observed cloud to ground lightning strike but the lightning flashes soon petered out to nothing.

Harley, sounds like you are close to me. I had a service call at Granville/Parra this afternoon - nice to finish the day close to home. I live just up the road at Rydalmere. As mentioned a pretty boring storm from crossing here. Oh well, sooner or later will get a good one.

We need a Christmas lunch, will post something in the social forum.
Title: Re: SA / VIC / NSW / QLD Storms: 26-29 November 2008
Post by: Harley Pearman on 30 November 2008, 12:56:51 AM
Tamworth storm / rain event

I have not been following it too well but it appears that there has been a serious rain event around Tamworth (NW slopes of New South Wales). When looking at rainfall figures by 6 am, some rather large rainfall totals stand out. Its limited to the Tamworth region being:-

Weabonga 169 mm
Tamworth 164 mm
Goonoo Goonoo 134 mm
Duri (On Dungowan Road) 121 mm
Glendower Mountain 123 mm.
Tia 108 mm
Ogunbil 98 mm
Keeva 92 mm
Mullo Crossing 90 mm
Nowendoc 83 mm

Even Gunnedah managed 54 mm. I don't often see these rainfall totals occurring in inland NSW. Late last night around 9 pm, I briefly spied some large thunderstorm cells developing close to this region. It appears soon after, one passed over this region dumping a large amount amount of rainfall in a relatively small area.

Harley Pearman
Title: Re: SA / VIC / NSW / QLD Storms: 26-29 November 2008
Post by: vrondes on 30 November 2008, 02:22:46 AM
Yes Richary , extracting some structure from yesterday's 80 kph storms was difficult, the first photo shows there was some turbulence
in the atmosphere, and the second is a cloud to cloud flash from the thundery rumble that passed through Parramatta around 5.30pm.
Harley, my Mom in Tamworth said she had never seen rain like yesterday's two storms dumped on Tamworth in such a short period
in the 40 years she's been there, possible 6 metre flood height on the Peel River this afternoon, Cheers, Con.

(http://i172.photobucket.com/albums/w28/elenecon/Storm%20Season%2008-09/281108-2.jpg)

(http://i172.photobucket.com/albums/w28/elenecon/Storm%20Season%2008-09/Sydstorm28-11-08.jpg)
Title: Re: SA / VIC / NSW / QLD Storms: 26-29 November 2008
Post by: Shaun Galman on 30 November 2008, 08:31:16 AM
Upper Western NSW Storm Report & Photos 28th Nov. 2008

Hi guys,
Well it was certainly an interesting evenings photography yesterday. Russ and I went out just after my last post at 7:15pm as the massive anvil was already covering 98% of the sky and had mamatus everywhere. We set up down town at an area with a decent westerly view, ready for the show. There were three large embedded storms under the anvil! One large storm to our South, was hitting Walgett at the time. The second large storm was wreaking havoc up to our North near Hebel, the third (but only about half the size of the others) was coming towards us from the West (roughly). These were highly active and it made choosing a direction to photograph them from very difficult! But I didn't mind that issue at all :D

(http://www.ridgelightning.com/gallery2/main.php?g2_view=core.DownloadItem&g2_itemId=2464&g2_serialNumber=2)
Russ (right) and myself(left) waiting for the storms to arrive. You can see the large storm to the South hitting Walgett. This had unreal crawlers everywhere, as did the one to the North also.

(http://www.ridgelightning.com/gallery2/main.php?g2_view=core.DownloadItem&g2_itemId=2460&g2_serialNumber=2)
This was the storm that was approaching town from the West. You can see a nice split starting to happen- directly West. This would be the key to keeping us dry for what was about to happen!

(http://www.ridgelightning.com/gallery2/main.php?g2_view=core.DownloadItem&g2_itemId=2467&g2_serialNumber=2)
A little bonus while waiting for things to get more interesting :) Lightning was constant with hardly a break in any direction (as was indicated by the LT at the time)

(http://www.ridgelightning.com/gallery2/main.php?g2_view=core.DownloadItem&g2_itemId=2470&g2_serialNumber=2)
We headed for a nice little shelter on the NW side of town as the split gained momentum and this nice little base formed right in front of us. No colour adjustments in any of these photos.

(http://www.ridgelightning.com/gallery2/main.php?g2_view=core.DownloadItem&g2_itemId=2476&g2_serialNumber=2)
My very first sunset CG photograph!!! This little base on the rear edge of the large storm to the North really paid off! I would have thought that even if there were 5 or 6 of us photographing at this point many crawlers and CG would have still gone amiss due to the widespread nature of the system!

(http://www.ridgelightning.com/gallery2/main.php?g2_view=core.DownloadItem&g2_itemId=2479&g2_serialNumber=2)
I was so happy with the result of this small cell! It's how we'd like all cells I guess? No rain and more lightning than you could poke a lightning rod at lol.

TBC.
Title: Re: SA / VIC / NSW / QLD Storms: 26-29 November 2008
Post by: Shaun Galman on 30 November 2008, 08:51:44 AM
Upper Western NSW Storm Report & Photos 28th Nov. 2008
Continued...

(http://www.ridgelightning.com/gallery2/main.php?g2_view=core.DownloadItem&g2_itemId=2482&g2_serialNumber=2)
I have this cell in it's entirety so the timelapse may be worth the effort? There seemed to be a great microburst near the time we had to leave due to the heavy rain that resulted as this cell built. The inflow winds were very warm driving back into the storm! Felt like the temps were still around 28ºc at this point around 8pm.

(http://www.ridgelightning.com/gallery2/main.php?g2_view=core.DownloadItem&g2_itemId=2485&g2_serialNumber=2)
This is the start of the microburst/heavy rain which came down through 8 or 9 consectutive photos. I haven't seen a sunset lit storm here like this in 5yrs of photographing storms! I remember thinking to myself (and mentioning to Russ on more than one occasion) "WOW! those colours are unreal!"
We headed for cover just after this as we couldn't escape the heavy rain coming from all directions.

(http://www.ridgelightning.com/gallery2/main.php?g2_view=core.DownloadItem&g2_itemId=2488&g2_serialNumber=2)
This is the back edge of the large storm to our North. You can just see the nice crisp anvil edge that was above us, again mamatus was everywhere! The cells out on the tree line here (which had plenty of lightning at this point) came over town at 11:30pm and dumped further rain and put on a semi-decent show of crawlers.

(http://www.ridgelightning.com/gallery2/main.php?g2_view=core.DownloadItem&g2_itemId=2491&g2_serialNumber=2)
This is facing just to the right of the photo above and shows the active part of this large storm. This is looking generally NW from town.

(http://www.ridgelightning.com/gallery2/main.php?g2_view=core.DownloadItem&g2_itemId=2494&g2_serialNumber=2)
We wrapped things up after this (8:49pm) as the storms grew just too distant and the mozzies were driving us nuts!

Definitely an amazing storm outcome! I still would like to know why storms seem to split around us so frequently? It happens more often than can be considered coincidence. I just wonder whether the ridges to our west have an effect on the winds even though they are only under 100feet from the ground level of the surrounding plains? Just a thought.

Kindest regards,
Shauno   
Title: Re: SA / VIC / NSW / QLD Storms: 26-29 November 2008
Post by: Ursula on 30 November 2008, 10:10:03 AM
I have small hail and heavy rain at 3.50 pm heading towards Batemanns Bay and Braidwood the cell split, it had rotation,

better get off it is starting again

Ursula
Title: Re: SA / VIC / NSW / QLD Storms: 26-29 November 2008
Post by: Kristy Norman on 30 November 2008, 10:41:07 AM
I didn't think today would have too much to offer us down here in the way of thunderstorms, how wrong I was!! There is a cell to the north of us and I've heard a few distant rumbles, and more appear to be developing to south and east.
Title: Re: SA / VIC / NSW / QLD Storms: 26-29 November 2008
Post by: Richary on 30 November 2008, 01:03:25 PM
Sitting here in the middle of a severe warned storm at Rydalmere. Lots of lightning in the sky before, and hail to golf ball size is hitting the ground now. Together with torrential rain.

Glad I saw the warning and got the cars undercover!
Title: Re: SA / VIC / NSW / QLD Storms: 26-29 November 2008
Post by: Dave Nelson on 30 November 2008, 01:28:10 PM
Sitting here in the middle of a severe warned storm at Rydalmere. Lots of lightning in the sky before, and hail to golf ball size is hitting the ground now. Together with torrential rain.

Glad I saw the warning and got the cars undercover!

yup  a good fast moving cell over head west ryde to paramatta.   hail to 1.5 cm here in west ryde
saw many good CG's a lot of other lightning within the clouds.   lightning tracker shows that the lightning peaked
just prior to arrival here  and died off pretty quickly as the storm headed towards the nthrn beaches

Dave N
Title: Re: SA / VIC / NSW / QLD Storms: 26-29 November 2008
Post by: Richary on 30 November 2008, 02:27:42 PM
The second line of storms that hit here about 8 seemed to come out of nowhere. Just a line forming between Parramatta and Warragamba, not moving that much and brought another 5mm in fairly quick time. It then stopped but now we have a few more flashes and light rain. I had thought about going camping tonight, in hindsight staying home might have been a wise decision.

Didn't get any spectacular lightning photos or anything, but will post some of the hail a bit later.

I also went for a stroll down the street after the first storm with the hail had passed, no damage to any vehicles here but still I would have been a bit nervous if the car had been in the driveway while it was happening. They certainly sound loud enough on the tin roof at this place! Also we didn't really get the wind that the severe storm warning mentioned, though the hail was landing on a fair angle from the SW. Had a bit of outflow pushing the rain at it's heaviest but nothing major.
Title: Re: SA / VIC / NSW / QLD Storms: 26-29 November 2008
Post by: David Brodrick on 30 November 2008, 02:51:35 PM
Tamworth Flooding

In addition to Harley's post above, the two manual stations near Gunnedah each recorded about 110mm. The water is currently below minor in Gunnedah and looks like it will soon peak. Peak expected Monday/Tuesday in Narrabri and moderate flooding in Wee Waa late Tuesday.

A flood warning has been issued:

Predicted River Heights/Flows:
Manilla
Peak near 6.3 metres early Sunday morning, 30/11/2008 with Minor flooding
Gunnedah
Reach Minor Flood level [7.3 metres] around 9:00pm Tonight, Saturday 29/11/2008
Peak near 7.8 metres noon Sunday 30/11/2008 with Moderate Flooding
Wee Waa
Reach Moderate Flood level [6.4 metres] Tuesday afternoon 2/12/2008


My mate Brett sent these photos of the Peel through the Tamworth CBD in flood. Tamworth was effectively cut in two as one bridge was under water (pictured) and the roads approaching the big bridge were flooded. The SES has been busy and there were the usual car accidents and silly twits getting their cars stuck in flooded causeways.

(http://narrabriweather.net/events/TamworthFlood-20081129-1.jpg)

(http://narrabriweather.net/events/TamworthFlood-20081129-2.jpg)
Title: Re: SA / VIC / NSW / QLD Storms: 26-29 November 2008
Post by: Harley Pearman on 30 November 2008, 03:05:01 PM
I don't remember seeing thunderstorms in the forecast for Sydney. Just got back indoors after doing some photography.

At around 7 pm a short but very intense thunderstorm passed over Blacktown and headed NE. I just had enough time to find a spot near the Blacktown Hospital to take some photographs before it hit.

I had hail to about 2 cm but it was brief followed by torrential rain for a few minutes before easing. Clouds were very photogenic after the event. Some good photos too but still in the camera.

Another two cells passed overhead after sunset both dropping short but sharp showers and occasional lightning but they did not match the intensity of the first one.

Harley Pearman
Title: Re: SA / VIC / NSW / QLD Storms: 26-29 November 2008
Post by: Richary on 30 November 2008, 04:42:03 PM
Harley - I didn't see any storm forecasts either for tonight, though 9 news mentioned the chance of them tonight (only a couple of minutes before the severe storm warning was issued).

Nothing spectacular here in the way of pics, the first was the storm clouds gathering to my west before it hit, the 2nd during the heaviest part of the hail/downpour, and the last taken as I was heading up the road to get some takeaway, a nice backlit shot that was probably a different cell. Only had the phone to photo that last one though.

Hail initially started here at about marble size, and slowly grew to a mix ranging from marble sized round ones to probably 2-2.5cm slightly flattened pieces. Towards the end apart from the big ones we also had pea size. And lots of rain very quickly.

Just had another rain band go over, but no lightning associated with this one.

Title: Re: SA / VIC / NSW / QLD Storms: 26-29 November 2008
Post by: Michael Bath on 01 December 2008, 04:33:47 AM
Beautiful photographs Shauno - I love lightning at sunset - about as good as it gets :)  Those are the special events for photography that you remember for a lifetime.

Thanks also to everyone for the reporting on the Tamworth region floods. Obs show some significant rain from storms late Thursday (the 34mm to 9am 28th) followed by some impressive morning storm totals (79mm), then flash flooding (over 70mm in 1 hour) and subsequent river flooding in the evening.

And then Sydney cops a hailstorm to end this weather event - awesome !

Michael
Title: Re: SA / VIC / NSW / QLD Storms: 26-29 November 2008
Post by: Shaun Galman on 01 December 2008, 04:50:55 AM
Beautiful photographs Shauno - I love lightning at sunset - about as good as it gets :)  Those are the special events for photography that you remember for a lifetime.

Michael

Cheers very much Michael :D
I will remember it for a long time to come, no doubt about that! I think sunset lit storms have always been my favorite kind and I'm always awe struck whenever I see photos of that nature posted here by members! I hope I did it the justice it deserved :)

I should add also that we received 10mm of rain in total for the 28th. Also we had a brief amount of smallish 3-4mm sized hail from that cell.

I was surprised by the flooding at Tamworth. I hope damage was kept to a minimum.
Take care,
Shauno
Title: Re: SA / VIC / NSW / QLD Storms: 26-29 November 2008
Post by: vrondes on 01 December 2008, 06:05:04 AM
Well a day cleaning the home , yesterday Saturday the 29th of November, had the bonus of some nice convection throughout the afternoon before we had to head to the city in the evening. Then around 6.30pm a vocal sky courtesy of rumblings to the south west prompted a delay in leaving so I could grab some photos of the severe storm heading our way. 1st photo is of the turbulent sky to the east,

(http://i172.photobucket.com/albums/w28/elenecon/Storm%20Season%2008-09/sstorm291108-5.jpg)

This is taken around 6.45pm as it was coming to Parramatta, inflow stingers and a possible tail cloud in the bottom left and rear were some nice structures with the storm, quite lightning active before I managed to find  a clear vantage point to photograph,

(http://i172.photobucket.com/albums/w28/elenecon/Storm%20Season%2008-09/sstorm291108-3.jpg)

south easterly low level infeed certainly gave it some nice dynamics,

(http://i172.photobucket.com/albums/w28/elenecon/Storm%20Season%2008-09/sstorm291108-7.jpg)

Hail from 6.45 at home was from 1 to 2.5 cms with the odd 3cm stone, they were mostly pancake in shape as mentioned by Richary and clear crystalline in appearance with the odd round opaque one, this lasted for 10 mins then the downburst turned the home into a tamworth type floodplain, and by the way , excellent photos by Brett of the hometown in flood, 1984 being the last time I've seen the waters breach the banks to that extent,

(http://i172.photobucket.com/albums/w28/elenecon/Storm%20Season%2008-09/storm291108-2.jpg)

and finally the storm's anvil as a backdrop on our trip into town, Cheers, Con.

(http://i172.photobucket.com/albums/w28/elenecon/Storm%20Season%2008-09/sstorm291108-4.jpg)
Title: Re: SA / VIC / NSW / QLD Storms: 26-29 November 2008
Post by: shanesmp on 01 December 2008, 09:20:55 AM
Thanks for sharing that Con! I was curious to know what back at home in Parramatta got... Weather has been interesting around NSW by the looks, particularly the NE corner and SEQ...

Been rainy and cold here... on and off snow on the mountains. Funnily enough, this appears to be one of the worst starts to the snow season they have had here in a while.. unfortunately had to occur when Phil and I were going for a trip to Whistler... hopefully will improve. Still plenty of photo ops to be had.

I'll be back on Dec 17th and have an extremely bad case of SDS... Shane will probably drive a fair way to get his storm fix/es if need be. Hope everyone over the southern side of the world has been doing good!
Title: Re: SA / VIC / NSW / QLD Storms: 26-29 November 2008
Post by: Jimmy Deguara on 01 December 2008, 05:23:47 PM
Con,

I am glad you and Paul were able to get the structure contained in this storm. There is interesting inflow and it seems perhaps even a wall cloud on the lowest base? Definitely eventually the outflow was going to win out.

Good stuff!

Here's some of my photos taken on Saturday 29th Nov - click for larger view.

(http://australiasevereweather.com/photography/thumbs/2008/1129jd03.jpg) (http://australiasevereweather.com/photography/photos/2008/1129jd03.jpg)

This was the earlier storm that passed over the extreme southwestern suburbs. It eventually weakened and likely proceeded off the coast. I had Geoff Thurtell come over for a visit during the time the storms were about to progress over the central metropolitan area. Not trying to make you feel guilty or anything Geoff haha. The development and movement was rather rapid I must say.

The first of the following photographs shows the northwestern view of the storm after it had passed over Parramatta. The other pictures are of storms to its northwest and southwest later and although not as severe, they did drop a few visible lighting bolts and made for some spectacular photography.

(http://australiasevereweather.com/photography/thumbs/2008/1129jd11.jpg) (http://australiasevereweather.com/photography/photos/2008/1129jd11.jpg)

(http://australiasevereweather.com/photography/thumbs/2008/1129jd31.jpg) (http://australiasevereweather.com/photography/photos/2008/1129jd31.jpg)

(http://australiasevereweather.com/photography/thumbs/2008/1129jd34.jpg) (http://australiasevereweather.com/photography/photos/2008/1129jd34.jpg)

(http://australiasevereweather.com/photography/thumbs/2008/1129jd63.jpg) (http://australiasevereweather.com/photography/photos/2008/1129jd63.jpg)

(http://australiasevereweather.com/photography/thumbs/2008/1129jd65.jpg) (http://australiasevereweather.com/photography/photos/2008/1129jd65.jpg)

(http://australiasevereweather.com/photography/thumbs/2008/1129jd66.jpg) (http://australiasevereweather.com/photography/photos/2008/1129jd66.jpg)

All photos for 29 November 2008 (http://australiasevereweather.com/photography/photos/2008/jd20081129.html)

One of the characteristics which added to the hail making atmosphere was the dry air aloft - well above 700hPa according to the model soundings. Combined with the cold air and approaching upper trough, it is not surprising that large hail was observed.

Regards,

Jimmy Deguara


Title: Re: SA / VIC / NSW / QLD Storms: 26-29 November 2008
Post by: David C on 02 December 2008, 05:51:47 AM
I had a concert to attend at Homebush during the evening, so I met with Paul at Rhodes for a coffee~ 5:00pm. At around 6:30 we parted ways, my car being deep in the multistory car park, his being on the street. While on the way to the car he called and, while sounding very excited, said that there was a beautiful base and a lot of lightning (since he lives in Melbourne now, I wasnt overly enthused just yet!). After racing out on the street though I was surprised to see this rather organised looking storm just to our west.

Anyway I had to go to the concert so I got a phone pic heading south along Homebush Bay Drive. The storm was putting on quite a show of clear air CGs, deep booming thunder and all this while there was a solid easterly infeed and signs of a storm that was starting to rotate --in the end it was probably all to transient but it looked good. During the concert, the second storm threatened with Cgs but moved by to the north.
Title: Re: SA / VIC / NSW / QLD Storms: 26-29 November 2008
Post by: Brad Hannon on 02 December 2008, 06:29:19 AM
Based on the persistent updraft region that I witnessed for over half an hour and some evidence of rotation, a possible left move and my and Ruckle's pics, I'm starting to think this was a supercell or certainly pretty close by definition.  What do others think of this possibility?

Based on my last post on pg3, has anyone got any thoughts?

Jimmy, I like that plane shot - very cool.
Title: Re: SA / VIC / NSW / QLD Storms: 26-29 November 2008
Post by: Mike on 02 December 2008, 10:01:53 AM
awesome photos and reports everyone, loving it!  Congrats on your first sunset strike Shauno - you could tell by the previous photo of you guys standing there you had that killer stare for something to happen!  I reckon it's the colors that really highlight the things.  Fairly dramatic shots of the flooded area also posted - a deluge would be an understatement.

Good posting all and a great read over a coffee it was.
Title: Re: SA / VIC / NSW / QLD Storms: 26-29 November 2008
Post by: vrondes on 03 December 2008, 08:09:24 AM
Jimmy, nice variety of shots from last Saturday's events. A couple of the guys at work who live in Abbotsbury and Greystanes also said they had hail with similar size and characteristics from that storm, so a reasonable hailpath from that cell, and Shane, looking forward to seeing your reports and photos once you're back on the local scene, Cheers, Con.
Title: Re: SA / VIC / NSW / QLD Storms: 26-29 November 2008
Post by: Jeff Brislane on 04 December 2008, 02:20:10 PM
I chased saturdays storm from the west and they were certainly very fast moving. I didn't see any of the good structure. The image below was taken at roper road on the M4 and by the time I got to walgrove road (2km) the outflow had already crossed the M4! And wasn't driving slowly either. I should've gone and sat on rooty hill and watch but i stupidly gave chase so i missed a whole heap of great photo ops.