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Australian Weather Mailing List Archives: Wednesday, 5 January 2000 |
From Subject
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001 Jonty Hall [jdh at vortex.shm.monash.edu.au] SE Qld storms
002 Anthony Cornelius [cyclone at flatrate.net.au] Re: SE QLD Tomorrow + Chasing
003 Ira Fehlberg [jra at upnaway.com] New Pix...
004 "Leslie R. Lemon" [lrlemon at compuserve.com] That European storm...........
005 astroman [astroman at chariot.net.au] Overhead projector needed
006 Les Crossan [les.crossan at virgin.net] Tornadoes
007 Les Crossan [les.crossan at virgin.net] Tornadoes in the UK
008 Anthony Cornelius [cyclone at flatrate.net.au] SE QLD Chase Today
009 Blair Trewin [blair at met.Unimelb.EDU.AU] First Bass Strait bomb of the 2000's
010 Ben Quinn [bodie at flatrate.net.au] SE QLD Chase Today
011 Les Crossan [les.crossan at virgin.net] First Bass Strait bomb of the 2000's
012 "John Woodbridge" [jrw at pixelcom.net] RE: Brisbane-wx
013 "John Woodbridge" [jrw at pixelcom.net] Storm Chase
014 "John Graham" [gorzzz at optusnet.com.au] NSW STA
015 "John Woodbridge" [jrw at pixelcom.net] Brisbane_wx
016 "John Graham" [gorzzz at optusnet.com.au] Ballina Storm
017 Matt Smith [disarm at braenet.com.au] SEQ storms
018 Michael Bath [mbath at ozemail.com.au] NSW North Coast storms & supercell chase
019 Paul.Mossman at DWNNICH.OCA.nt.gov.au NE NSW Storms
020 Michael Bath [mbath at ozemail.com.au] storm report online
021 Paul Graham [tornado at hobbiton.org] Program on Tornadoes in the US, ABC TV...
--------------------------------------------------------------------------------------
001
Date: Wed, 5 Jan 2000 00:26:21 -1100 (DST)
From: Jonty Hall [jdh at vortex.shm.monash.edu.au]
To: aus-wx [aussie-weather at world.std.com]
Subject: aus-wx: SE Qld storms
Sender: aussie-weather-approval at world.std.com
Reply-To: aussie-weather at world.std.com
Just thought I'd try it *with* a subject. Sorry about that...
On Tue, 4 Jan 2000, Jonty Hall wrote:
> Hi all,
>
> The chances of some severe weather in SE Qld tomorrow are looking pretty
> good at the moment IMO. CAPEs should be in the 2000+ area, the wind field
> looks very interesting - anticlockwise hodograph up to 700 hPa, with
> strong straight - line shear above - and a favourable moisture profile.
> The surface trough should also be a prominent feature. Any further
> thoughts from anyone? I'll be out and about in the Brisbane area tomorrow
> (say, 200 km radius) if anyone is interested (I haven't met any of you
> Brissie ASWAs yet, but tomorrow looks like it might be a good day to!).
>
> A fairly interesting squal line arrangement is approaching the Brisbane
> western suburbs right now, doing a fair clip (~50 to 60 km/h). Radar is
> showing a high reflectivity gradient at the foreward flank, and some
> bowing out of the line appears to forming. Isn't there an ASWA bloke in Mt
> Crosby? Could be in the firing line there.
>
> Cheers,
>
> Jonty.
>
> ____________________________________________________________________
>
> Jonty Hall jdh at vortex.shm.monash.edu.au
>
> CRC for Southern Hemisphere Meteorology
> Monash University
> Wellington Road,
> Clayton, Vic 3168
>
> Ph +61 3 9905 9684
>
> ____________________________________________________________________
>
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> message.
> -----------------------jacob at iinet.net.au------------------------------
>
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002
Date: Tue, 04 Jan 2000 23:35:50 +1000
From: Anthony Cornelius [cyclone at flatrate.net.au]
X-Mailer: Mozilla 4.6 [en] (Win98; I)
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To: aussie-weather at world.std.com
Subject: aus-wx: Re: SE QLD Tomorrow + Chasing
Sender: aussie-weather-approval at world.std.com
Reply-To: aussie-weather at world.std.com
Hi Jonty and all,
I'll certainly be out chasing tomorrow! As you mentioned, the shear is
quite good, backing with height very nicely. Although 925/850mb shear
could be a little stronger than progged, I'm still quite excited.
AVN is progging 2000+ CAPE, with -6 LI's. I've looked at skew-ts for
various areas, and noted rather high DP's forecast for tomorrow - I had
dismissed these originally, but it appears the high DP's will be partly
due to the rain and storms that have formed this afternoon and evening,
if Boonah gets its 23C DP like forecasted, expect CAPE's of around
4000-5000!!!! The reason for the higher CAPE, is because of the
elevated surface area, and also because the upper atmosphere is quite
cool, -10C at 500mb - from memory, this is reasonably colder then a
normal Jan storm situation.
I'm chasing by myself at the moment - as I have to be back earlyish (7pm
- maybe later if it's *great*) - but if you wanted to come in my car,
you're more then welcome!!! Also, if anyone else is interested in
chasing, but is OK with the time constraint...then contact me ASAP.
Preferably, it'd be good if we can meet at one place, and take lesser
cars after that, rather than picking people up.
Jonty Hall wrote:
>
> Hi all,
>
> The chances of some severe weather in SE Qld tomorrow are looking pretty
> good at the moment IMO. CAPEs should be in the 2000+ area, the wind field
> looks very interesting - anticlockwise hodograph up to 700 hPa, with
> strong straight - line shear above - and a favourable moisture profile.
> The surface trough should also be a prominent feature. Any further
> thoughts from anyone? I'll be out and about in the Brisbane area tomorrow
> (say, 200 km radius) if anyone is interested (I haven't met any of you
> Brissie ASWAs yet, but tomorrow looks like it might be a good day to!).
>
> A fairly interesting squal line arrangement is approaching the Brisbane
> western suburbs right now, doing a fair clip (~50 to 60 km/h). Radar is
> showing a high reflectivity gradient at the foreward flank, and some
> bowing out of the line appears to forming. Isn't there an ASWA bloke in Mt
> Crosby? Could be in the firing line there.
>
> Cheers,
>
> Jonty.
>
> ____________________________________________________________________
>
> Jonty Hall jdh at vortex.shm.monash.edu.au
>
> CRC for Southern Hemisphere Meteorology
> Monash University
> Wellington Road,
> Clayton, Vic 3168
>
> Ph +61 3 9905 9684
>
> ____________________________________________________________________
>
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> 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
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003
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Date: Wed, 05 Jan 2000 21:48:34 +0800
To: aussie-weather at world.std.com
From: Ira Fehlberg [jra at upnaway.com]
Subject: aus-wx: New Pix...
Sender: aussie-weather-approval at world.std.com
Reply-To: aussie-weather at world.std.com
Hey kev I just about thought you'd died! Come visit us in irc sometime.
Some real nice pics there, i checked em out and i just lurve this one
http://www.fortunecity.com/greenfield/manchester/4/nov994.jpg
Ira Fehlberg
At 21:04 4/01/00 EST, you wrote:
>Hi every1,
>
>Finally got some (very badly) scanned pix up from the last two months...
>
>Go to http://www.fortunecity.com/greenfield/manchester/4/
>
>then Section D...
>
>then [4] = late November 99
> [5] = December 99 (one bomb + wall cloud...)
> [6] = I'm not sure... you tell me!
>
>Cheers,
>Kevin from Wycheproof
>______________________________________________________
>Get Your Private, Free Email at http://www.hotmail.com
>
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> -----------------------jacob at iinet.net.au------------------------------
>
>
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004
Date: Tue, 4 Jan 2000 11:00:13 -0500
From: "Leslie R. Lemon" [lrlemon at compuserve.com]
Subject: aus-wx: That European storm...........
To: "INTERNET:aussie-weather at world.std.com" [aussie-weather at world.std.com]
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Paul:
> Great satpic of that Intense Low that caused all those deaths etc.
>
> here : http://www.osei.noaa.gov/Events/Current/STMeurope363_MT.jpg
Thanks very much for the heads up on this pic. It is great!
Les
************************
Leslie R. Lemon
Radar, Severe Storms, & Research Meteorologist
Phone: 816-373-3533
E-Mail: lrlemon at compuserve.com
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005
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Date: Wed, 05 Jan 2000 07:38:10 +1030
To: aussie-weather at world.std.com
From: astroman [astroman at chariot.net.au]
Subject: aus-wx: Overhead projector needed
Sender: aussie-weather-approval at world.std.com
Reply-To: aussie-weather at world.std.com
Hi all,
Does anyone know where I might be able to get my hands on an overhead
projector???
I need one for our Feb meeting where one of our members will be doing a
talk for us.
any help appreciated.
Andrew Wall
15 Elio Drv,
Paralowie, 5108
South Australia.
PH (home) - (08) 82854590
State representative for S.A. and N.T. Division of the Australian Severe
Weather Association Inc.
Webmaster of The official South Australian Severe Weather watch homepage.
South Australian Severe Weather page - http://sastorms.virtualave.net
ASWA Inc. - http://www.severeweather.asn.au
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006
Date: Tue, 04 Jan 2000 21:34:30 +0000
From: Les Crossan [les.crossan at virgin.net]
Organization: Cosmic EuroCon Ltd. - note all times in GMT
X-Mailer: Mozilla 4.5 [en] (Win98; U)
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To: aus-wx [aussie-weather at world.std.com]
Subject: aus-wx: Tornadoes
Sender: aussie-weather-approval at world.std.com
Reply-To: aussie-weather at world.std.com
list,
Just thought you'd like to know those who aren't chasing supercells in
NSW:
Three tornadoes reported in the UK today, one about 8 miles north of
here, footage seen up 'till now shows less than F0 or T0 damage.
An active squall / cold front crossed the UK today which became thundery
as it traversed east. At last uk.sci.weather has come alive....
BTW Les uses the Torro Scale!
for more see:
http://www.torro.org.uk/tnintens.htm
------------------------------------------------------
Les Crossan
Wallsend, Tyne & Wear, UK 54-59N 01-30W
UK Storm Chaser
Australian Severe Weather Association (ASWA)- Victoria
Tornado and Storm Research Organisation (TORRO) - UK
Thunderstorm Census Organisation (TCO) - UK
Email: les.crossan at virgin.net
ICQ: 17296776
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007
Date: Tue, 04 Jan 2000 23:29:35 +0000
From: Les Crossan [les.crossan at virgin.net]
Organization: Cosmic EuroCon Ltd. - note all times in GMT
X-Mailer: Mozilla 4.5 [en] (Win98; U)
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To: aus-wx [aussie-weather at world.std.com]
Subject: aus-wx: Tornadoes in the UK
Sender: aussie-weather-approval at world.std.com
Reply-To: aussie-weather at world.std.com
dear all -
This image shows what looks like a dry slot in front of the squall that
hit the UK today..... further enhancing instability.
Goody, goody, goody.....
http://www.sat.dundee.ac.uk/pdus/BW/200001041200BW2_g.jpg
Les (UK)
------------------------------------------------------
Les Crossan
Wallsend, Tyne & Wear, UK 54-59N 01-30W
UK Storm Chaser
Australian Severe Weather Association (ASWA)- Victoria
Tornado and Storm Research Organisation (TORRO) - UK
Thunderstorm Census Organisation (TCO) - UK
Email: les.crossan at virgin.net
ICQ: 17296776
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008
Date: Wed, 05 Jan 2000 10:08:52 +1000
From: Anthony Cornelius [cyclone at flatrate.net.au]
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Subject: aus-wx: SE QLD Chase Today
Sender: aussie-weather-approval at world.std.com
Reply-To: aussie-weather at world.std.com
Hi all,
Jonty and I will be going storm chasing today. At the moment, we're
heading for the Boonah Lookout, but this may change depending on what
the sky is like.
If anyone can give satpics/radar/lightning tracker updates, it'd be very
much appreciated. I'll have my mum's mobile with me, the phone number
is 0417 759 304.
It's still looking OK for us, although my main concern is that we'll
suffer the same fate as Sydney did (IE, W'ly winds coming in and ruining
everything). But we'll see what happens.
Thanks in advance,
--
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
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-----------------------jacob at iinet.net.au------------------------------
009
From: Blair Trewin [blair at met.Unimelb.EDU.AU]
Subject: aus-wx: First Bass Strait bomb of the 2000's
To: aussie-weather at world.std.com (Aussie Weather)
Date: Wed, 5 Jan 100 11:27:06 +1100 (EST)
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A definite sense of deja vu from late December, 1998 as an intense
low winds up at the eastern end of Bass Strait. Gabo Island was
reporting 45 knots sustained at 0900 this morning; Gabo is not an
especially favoured site for high winds (presumably this is something
to do with the instrument siting) and this is on a par with what was
observed on 27 December 1998 there. The low is a little further east
than the 1998 system was, so Wilsons Promontory isn't getting the
hammering it did then.
The low was analysed at 993 hPa at 0700.
The main action for low temperatures and heavy rainfall has been
eastern Tasmania. Hobart's maximum of 12 is, at the very least, its
coldest in January since 1945, and depending on decimals may break
the record set then (12.0). Much of eastern Tasmania got over 50mm
of rain, with the heaviest falls being at the usual suspects in such
situations, St. Mary's (159) and Gray (168).
If Launceston's maximum was below 14.0 (it was 14 rounded) it is also
the lowest there since 1945.
Melbourne's only getting the western fringe of the action, but is still
fairly breezy - it was hard work riding across the exposed Clifton
Hill bridge this morning in the crosswind! There's been a little
shower activity in the city, and rather more in the Dandenongs (1mm
in the city, 17 at Dunns Hill).
Blair Trewin
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010
Date: Wed, 05 Jan 2000 10:21:58 +1100
From: Ben Quinn [bodie at flatrate.net.au]
X-Mailer: Mozilla 4.61 [en] (Win95; I)
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To: aussie-weather at world.std.com
Subject: Re: aus-wx: SE QLD Chase Today
Sender: aussie-weather-approval at world.std.com
Reply-To: aussie-weather at world.std.com
Hi Everyone,
Ross Portas and myself will also be chasing in SE QLD today - we have
the same concerns as Anthony and Jonty, but hopefully it'll fire..
Any updates would be much appreciated - Ross' mobile number is
0413 911 381
Anthony Cornelius wrote:
>
> Hi all,
>
> Jonty and I will be going storm chasing today. At the moment, we're
> heading for the Boonah Lookout, but this may change depending on what
> the sky is like.
>
> If anyone can give satpics/radar/lightning tracker updates, it'd be very
> much appreciated. I'll have my mum's mobile with me, the phone number
> is 0417 759 304.
>
> It's still looking OK for us, although my main concern is that we'll
> suffer the same fate as Sydney did (IE, W'ly winds coming in and ruining
> everything). But we'll see what happens.
>
> Thanks in advance,
> --
> 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
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> -----------------------jacob at iinet.net.au------------------------------
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011
Date: Wed, 05 Jan 2000 00:46:31 +0000
From: Les Crossan [les.crossan at virgin.net]
Organization: Cosmic EuroCon Ltd. - note all times in GMT
X-Mailer: Mozilla 4.5 [en] (Win98; U)
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To: aussie-weather at world.std.com
Subject: Re: aus-wx: First Bass Strait bomb of the 2000's
Sender: aussie-weather-approval at world.std.com
Reply-To: aussie-weather at world.std.com
Blair Trewin wrote:
erm, 01/01/70 with the header showing year 100???
First example of the Millenium Bug I've seen
Les
------------------------------------------------------
Les Crossan
Wallsend, Tyne & Wear, UK 54-59N 01-30W
UK Storm Chaser
Australian Severe Weather Association (ASWA)- Victoria
Tornado and Storm Research Organisation (TORRO) - UK
Thunderstorm Census Organisation (TCO) - UK
Email: les.crossan at virgin.net
ICQ: 17296776
------------------------------------------------------
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-----------------------jacob at iinet.net.au------------------------------
012
From: "John Woodbridge" [jrw at pixelcom.net]
To: [aussie-weather at world.std.com]
Subject: aus-wx: RE: Brisbane-wx
Date: Wed, 5 Jan 2000 11:06:04 +1000
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Hi Jonty,
I'm the ASWA bloke at Mt. Crosby. A very average squall line, it was
decaying almost from the moment I first heard thunder around 7:30pm. We
ended up with 3mm and the last decent CG was about 20k's to the west.
Wind currently strong W/NW, consistent with a deepening low to the South.
Surface moisture degrading, rising bar. Field of low shallow Cu moving
quickly Eastward. Looks like a dry line and maybe trough line passed
overnight thus action today unlikely. This may change if the trough slips
back inland with daytime heating and a good NE seabreeze is able to get
going. But this looks rather unlikely at present but you never know. My
prognosis is that the Wind will back through SW, S, SE over the next 24
hours. Quite warm now.
John.
>snip
Hi all,
The chances of some severe weather in SE Qld tomorrow are looking pretty
good at the moment IMO. CAPEs should be in the 2000+ area, the wind field
looks very interesting - anticlockwise hodograph up to 700 hPa, with
strong straight - line shear above - and a favourable moisture profile.
The surface trough should also be a prominent feature. Any further
thoughts from anyone? I'll be out and about in the Brisbane area tomorrow
(say, 200 km radius) if anyone is interested (I haven't met any of you
Brissie ASWAs yet, but tomorrow looks like it might be a good day to!).
A fairly interesting squal line arrangement is approaching the Brisbane
western suburbs right now, doing a fair clip (~50 to 60 km/h). Radar is
showing a high reflectivity gradient at the foreward flank, and some
bowing out of the line appears to forming. Isn't there an ASWA bloke in Mt
Crosby? Could be in the firing line there.
Cheers,
Jonty.
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013
From: "John Woodbridge" [jrw at pixelcom.net]
To: [aussie-weather at world.std.com]
Subject: RE: aus-wx: Storm Chase
Date: Wed, 5 Jan 2000 11:16:45 +1000
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Yes!
But what you really need is some decent mountains down the middle of NSW,
VIC and into southern QLD, elevation to around 4000m. With a broader
coastal plain to the East. Then you would have a situation more in keeping
with the Rockies & mid west of USA.
>snip
I would rather see the money spent on extending the Gulf of Carpentaria
right down central Australia to lake Eyre, the soil removed can be used to
extend the Australian Mainland level with southern Tasmania. I think this
will improve severe storm potential. Inland NSW and Victoria could become
the southern hemisphere's Great Plains.
>
> But anyway, as the dry air came through, we decided to go to the Camden
> pub. We discussed plans of a new ASWA 2000 initiative to spend 2 billion
> dollars and build a land strip 200km out from the coastline so we couldn't
> care less what happened to prefrontal troughs!!!
>
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014
From: "John Graham" [gorzzz at optusnet.com.au]
To: "Aussie Weather" [aussie-weather at world.std.com]
Subject: aus-wx: NSW STA
Date: Wed, 5 Jan 2000 14:33:10 +1100
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TOP PRIORITY FOR IMMEDIATE BROADCAST
SEVERE THUNDERSTORM ADVICE
BUREAU OF METEOROLOGY
NEW SOUTH WALES REGIONAL OFFICE
Issued at 1341 on Wednesday the 5th of January 2000
This advice affects people in the following weather districts:
Northern Rivers
Thunderstorms are forecast within the advice area this afternoon.
Some of these are expected to be severe, bringing large hailstones,
destructive winds and very heavy rainfall.
The STATE EMERGENCY SERVICE advises that as storms approach people should:
* put vehicles under cover
* move indoors away from windows
During and after storms people should:
* take extreme care when driving
* beware of fallen trees and power lines
* keep away from creeks and drains as you may be swept away
A cell's just about to hit here in Ballina .......up to yellow on the
radar...thunder almost continuously here
John
_____________________________________________________
John Graham
Email: gorzzz at optusnet.com.au or gorzzz at yahoo.com
Member of the Australian Severe Weather Assoc. (ASWA)
ASWA Homepage http://www.severeweather.asn.au/
ICQ# 25440353
Snail Mail : P.O.Box 1072
Ballina 2478 N.S.W
Australia
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-----------------------jacob at iinet.net.au------------------------------
015
From: "John Woodbridge" [jrw at pixelcom.net]
To: [aussie-weather at world.std.com]
Subject: RE: aus-wx: Brisbane_wx
Date: Wed, 5 Jan 2000 14:22:31 +1000
X-Mailer: Microsoft Outlook CWS, Build 9.0.2416 (9.0.2910.0)
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Ah well, the gods can sometimes be kind. NE's just starting up in Sumner,
still stifling hot, est. 34C. But can see the Anvil on the Ballina jobby
and Cg is starting to develop along the border ranges....
waaaaaahooooooo..
John.
>snip
TOP PRIORITY FOR IMMEDIATE BROADCAST
SEVERE THUNDERSTORM ADVICE
BUREAU OF METEOROLOGY
NEW SOUTH WALES REGIONAL OFFICE
Issued at 1341 on Wednesday the 5th of January 2000
This advice affects people in the following weather districts:
Northern Rivers
Thunderstorms are forecast within the advice area this afternoon.
Some of these are expected to be severe, bringing large hailstones,
destructive winds and very heavy rainfall.
The STATE EMERGENCY SERVICE advises that as storms approach people should:
* put vehicles under cover
* move indoors away from windows
During and after storms people should:
* take extreme care when driving
* beware of fallen trees and power lines
* keep away from creeks and drains as you may be swept away
A cell's just about to hit here in Ballina .......up to yellow on the
radar...thunder almost continuously here
John
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-----------------------jacob at iinet.net.au------------------------------
016
From: "John Graham" [gorzzz at optusnet.com.au]
To: "Aussie Weather" [aussie-weather at world.std.com]
Subject: aus-wx: Ballina Storm
Date: Wed, 5 Jan 2000 16:10:33 +1100
X-Mailer: Microsoft Outlook Express 5.00.2014.211
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Hi Everybody,
Just had a nice storm go through here, had hail the size of $2 coins in
town,an unconfirmed report of golf ball size at East Ballina....had 22.6mm
rain in 30 mins here. Some C/G's VERY close to the house, was chatting to
Jimmy on ICQ when the room lit up like a Christmas tree & thunder at the
same time, it was then I thought it would be a good time to get off the
'puter............
Cheer's
John from Ballina
_________________________________________________________
John Graham
Email: gorzzz at optusnet.com.au or gorzzz at yahoo.com
Member of the Australian Severe Weather Assoc. (ASWA)
ASWA Homepage http://www.severeweather.asn.au/
ICQ# 25440353
Snail Mail : P.O.Box 1072
Ballina 2478 N.S.W
Australia
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017
X-Sender: disarm at braenet.com.au (Unverified)
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Date: Wed, 05 Jan 2000 17:25:11 +1100
To: aussie-weather at world.std.com
From: Matt Smith [disarm at braenet.com.au]
Subject: aus-wx: SEQ storms
Sender: aussie-weather-approval at world.std.com
Reply-To: aussie-weather at world.std.com
Just rang Ben Quin and the guys, they are on a cell just SE of Ipswich,
they can see prongs and a possible wall cloud, cell has a spot of red on
radar.. there having a great day!
Matt Smith
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018
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Date: Wed, 05 Jan 2000 17:14:47 +1100
To: aussie-weather at world.std.com
From: Michael Bath [mbath at ozemail.com.au]
Subject: aus-wx: NSW North Coast storms & supercell chase
Sender: aussie-weather-approval at world.std.com
Reply-To: aussie-weather at world.std.com
Thanks to Jood Woodbridge for the beautiful piece of reverse psycology on
the weather - it worked well here!
Signs this morning were not hopeful, with not a cloud in the sky and
moderate W-SW winds blowing (I think?). Later, there were a few patches of
altocumulus lenticularis but mostly towards the north. But very quickly
late morning a field of cumulus developed and by 12.30pm congestus was
developing W of Lismore.
I left my place at 1pm with a cell gathering strength SW of Lismore. It was
very slow in developing at first with a couple of turkey towers, and anvil
rain or virga spreading out in front. But updrafts kept persisting. By 2pm
I was near Wyrallah, S of Lismore and in some rain from the developing cell
- there was no lightning observed at this stage. Either two cells got going
very close together or the one split into two - I'm not sure - but soon
there was heavy precip just to my N with its boiling updraft visible to my
NW, then a gap to the second one just to the W-SW. The W-SW one dominated
for the moment but as I moved further NW it weakened and probably collapsed
after a while.
The north cell really took off at this stage (~2.20pm). As I was now W of
the cell, it became very high constrast and just beautiful to observe.
Towards the NE a shelf cloud or gust front was developing, while heavy
precipiation was developing at the rear (SW). Lightning was occurring
regularly now with quite a few CGs observed, some of which were close by to
me from out the back of the cell and along a line of congestus spreading
further west. The storm moved slowly NE and all the time base lowereings
and scud were showing to the left with the very heavy precip to the left
(from my view looking eastward). Powerful new updrafts kept forming on the
NW flank. The whole storm structure did seem to be rotating with quite a
marked clear area in the middle. The more distant cloud to the NE on the
gust front was moving towards the left (north), while at the back (NW and
W) I could see it moving towards the right (south), and in the middle a
lighter area. This persisting for the whole time I watched the storm from
this time (~2.40pm). Needless to say it was an awesome sight ! With each
new boiling updraft spearing up the flank, more and more lowerings, prongs,
and scuds on or close to ground level.
I left my location SW of Lismore at 3pm trying to get closer and to watch
the new cells develop along a spectacular flanking line towards the NNW. Of
course I got stuck by a frigging Frigmobil semi trailer just leaving
Lismore and going slow! AAARRGGH. Anyway I soon reached McLeans Ridges and
watched the spectacle which was probably over Cape Byron now (3.30pm). It
was huge - clouds tops were over 15ks or more from my guess, backshearing
was eveident as each new updraft developed and the persisting gust front
was still visible out to the NE and the heavy precpitation to the east. CGs
were occurring in this region also. And still the whole structure appeared
to have an overall rotation (anticlockwise if viewed from above). Lowerings
and all sorts of features teased on the developing area, but no funnels or
obvious wall clouds were evident.
The storm became obscured somewhat near 4pm and nothing more was developing
(apart from over the water, and to the north) so I came home. I stopped
briefly to photograph a cell which had briefly strengthened while passing
over the ranges north of Lismore. It had developed around 2pm near Kyogle
but although persisting was weak for 2 hours preceeding.
The main storm may have been a supercell - structurally it took on the
right appearance, was rotating, developed around 1pm and possibly split
with the right mover collapsing. The storm is still going strong as I write
this at 5pm.
I would love to see the Grafton local scale radar if anyone has saved it.
regards, Michael
==================================================================
Michael Bath mailto:mbath at ozemail.com.au
Wollongbar NSW 2477 http://australiansevereweather.simplenet.com/
Australia http://www.lightningphotography.com/
Secretary ASWA Inc. http://www.severeweather.asn.au/
==================================================================
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019
From: Paul.Mossman at DWNNICH.OCA.nt.gov.au
To: " - *aussie-weather at world.std.com" [aussie-weather at world.std.com]
Subject: aus-wx: NE NSW Storms
Date: Wed, 5 Jan 2000 16:11:47 +0930
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Howdy all.
Look forward to seeing M Baths report on this storm - after reading this:-
The Severe Thunderstorm Advice for the Northern Rivers valid this afternoon
has been cancelled as severe thunderstorms have now cleared out of the area.
Earlier this afternoon severe thunderstorms affected the Ballina, Lennox
Head and Byron Bay areas bringing large hail and very heavy rainfall.
Paul
Ps Here - piss weak storm trying its best to do sumthin
grr.
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020
X-Sender: mbath at pop.ozemail.com.au
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Date: Wed, 05 Jan 2000 19:04:54 +1100
To: aussie-weather at world.std.com
From: Michael Bath [mbath at ozemail.com.au]
Subject: aus-wx: storm report online
Sender: aussie-weather-approval at world.std.com
Reply-To: aussie-weather at world.std.com
I have put a report online for todays action, linked from Storm News:
http://australiansevereweather.simplenet.com/storm_news/
It contains a nice radar loop - thanks to those that sent me some pics.
I;ll add other images and pics when I get them.
cheers, Michael
==================================================================
Michael Bath mailto:mbath at ozemail.com.au
Wollongbar NSW 2477 http://australiansevereweather.simplenet.com/
Australia http://www.lightningphotography.com/
Secretary ASWA Inc. http://www.severeweather.asn.au/
==================================================================
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021
Date: Wed, 5 Jan 2000 04:29:23 +0000 (GMT)
From: Paul Graham [tornado at hobbiton.org]
To: aussie-weather at world.std.com
Subject: aus-wx: Program on Tornadoes in the US, ABC TV...
Sender: aussie-weather-approval at world.std.com
Reply-To: aussie-weather at world.std.com
Hi everyone,
I believe there will be a program next wednesday night at 8:30pm
on ABC TV about tornadoes and severe storms in the US.
Cheers,
Paul.
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| Document: 000105.htm
Updated: 09 January 2000 |
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