Storm News
[Index][Aussie-Wx] |
Australian Weather Mailing List Archives: Monday, 25 October 1999 |
From Subject -------------------------------------------------------------------------------------- 001 Matt Smith [disarm at braenet.com.au] Dramatic development SW from Penrith 002 "Marty" [martyp at dynamite.com.au] SE QLD lightning tracker images 003 Don White [donwhite at ozemail.com.au] Wollongong Rain 004 "Nandina Morris" [nandina at alphalink.com.au] SE QLD Severe Thunderstorm Advice 005 Michael Scollay [michael.scollay at telstra.com. March 1906 North Sydney Tornado - temp web 006 Michael Fewings [mike at strikeone.com.au] The green Glow 007 Blair Trewin [blair at met.Unimelb.EDU.AU] The weekend in Canberra 008 John Woodbridge [jrw at pixelcom.net] The weekend in Canberra 009 Chris Maunder [cmaunder at mail.com] The weekend in Canberra 010 Jimmy Deguara [jimmydeguara at rocketmail.com] Fwd: ASWA%20Inc.%20NSW%20Info 011 Blair Trewin [blair at met.Unimelb.EDU.AU] You are now leaving NSW. Please deposit all rain in the bins 012 "John Graham" [gorzzz at optusnet.com.au] Baby 013 "Michael Thompson" [michaelt at ozemail.com.au] Update on Wollongong Flash Floods 014 "Michael Thompson" [michaelt at ozemail.com.au] Wollongong Rain 015 Ross Portas [rportas at mindless.com] 24/10 SEQ Storms 016 "Halden Boyd" [haldenboyd at hotmail.com] Storm Damage SE QLD ABC News report 017 Jimmy Deguara [jdeguara at ihug.com.au] NSW AMOS meeting 018 Kerrie Christian [kcact at wollongong.starway.ne Update on Wollongong Flash Floods 019 Michael Fewings [mike at strikeone.com.au] Last day Tuesday (photo comp) -------------------------------------------------------------------------------------- 001 X-Sender: disarm at mail.braenet.com.au X-Mailer: Windows Eudora Pro Version 3.0 (32) Date: Mon, 25 Oct 1999 01:02:13 +1000 To: aussie-weather at world.std.com From: Matt Smith [disarm at braenet.com.au] Subject: RE: aus-wx: Dramatic development SW from Penrith Sender: aussie-weather-approval at world.std.com Reply-To: aussie-weather at world.std.com The 1 loop i managed to save of this event is in the times your after :) http://www.braenet.com.au/~disarm/temp/oct2499syd.gif I have some nice video and photos of this cell, it looked spectacular even though it turned into an area of rain. Michael Bath -> Sounds like you had one hell of a chase!!! Can't wait to see the photos and maybe the video one day! Also glad to hear the Brisbane people got some good storms today as well. Jimmy when you read this, how was your chase ? Cheers Matt Smith >Took a couple of photos (should have taken more!) from Wentworthville as the >main cell (which seemed to be in a line of storms running SW/NE) weakened as >it moved NE (around 2:45pm)... a few bolts of lightning visible within the >main rain band to the west also. Also drove through Northern Sydney to get >some more shots but to no avail. I was actually caught by surprise after >being inside for most of the day and also that the LI's were around -2 and >0. I guess this will teach me to get out more :) > >I would be interested to see what the radar looked like around 2:30 - 3:30, >if anyone has loops saved. > >Mal > > >> ---------- >> From: Matt Smith[SMTP:disarm at braenet.com.au] >> Sent: 24 October 1999 15:55 >> To: aussie-weather at world.std.com >> Subject: Re: aus-wx: Dramatic development SW from Penrith >> >> Saw this thing on radar, went up to ashfield plaza carpark .. ooh 1st >> rumble of thunder just then!!! about time! >> Id seemed to loose its intensity as it moved further east, looked quiet >> spectacular as it arrived though, hope people were watching the sydney web >> cam!!!Just light rain around now the sydney met now. >> >> Matt Smith >> >> >> >Hi Laurier and others, >> > >> >The red on radar was just to the south of me. As I said in a previous >> >e-mail there was some small hail around. There was also quite a bit of >> >thunder just after the storm passed me. Only recieved 0.6mm from this >> storm >> >though and the top wind gust was around 25kph from the WNW at 2:05pm. >> > >> >Matthew Piper >> > >> >P.S. I received 79mm for the 24hrs to 9am this morning which is the >> highest >> >daily fall of rain this year. >> > >> >----- Original Message ----- >> >From: Laurier Williams>> >To: >> >Sent: Sunday, 24 October 1999 2:28 PM >> >Subject: aus-wx: Dramatic development SW from Penrith >> > >> > >> >> Between 2 and 2.20pm, Sydney Radar has a storm moving ESE that has >> >> gone from level 1 to level 6 (dark blue to red) on and to the SW of >> >> Penrith. Any chasers available, or anyone in the area? Where's Jimmy >> >> when you need him.... >> >> >> >> Laurier >> >> >> >> >> +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ >> >> 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------------------------------ > > +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 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------------------------------ 002 From: "Marty" [martyp at dynamite.com.au] To: "Aussie Weather Mailing List" [aussie-weather at world.std.com] Subject: aus-wx: SE QLD lightning tracker images Date: Mon, 25 Oct 1999 02:35:47 +1000 X-Mailer: Microsoft Outlook Express 4.72.3110.1 Sender: aussie-weather-approval at world.std.com Reply-To: aussie-weather at world.std.com Hi all, I've made an animated gif of the lightning tracker images (SE QLD) for Sunday afternoon/evening (145K): http://www2.dynamite.com.au/martyp/lightning/temp/lightn24-10.gif And also the early Monday morning period between midnight and 2:30am where there was heaps of activity out to sea off Nambour (47K): http://www2.dynamite.com.au/martyp/lightning/temp/lightn25-10.gif Then I had to go to bed! The images are copyright Energex. Cheers, Marty. Brisbane, Australia martyp at dynamite.com.au Images of Canberra: http://www2.dynamite.com.au/martyp Lightning Photos: http://www2.dynamite.com.au/martyp/lightning 3D Photography: http://www.bit.net.au/~erinm/3d ICQ: 11790565 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 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------------------------------ 003 Date: Mon, 25 Oct 1999 07:16:18 +1000 From: Don White [donwhite at ozemail.com.au] X-Mailer: Mozilla 4.5 [en] (Win98; I) X-Accept-Language: en To: aussie-weather at world.std.com Subject: Re: aus-wx: Wollongong Rain Sender: aussie-weather-approval at world.std.com Reply-To: aussie-weather at world.std.com Michael... upper Calderwood had 124 mm to 9 am and a further 69.5 mm since 9 am yesterday. They had 52.5 mm between 9.40 and 10.20 am. I think it is in the hills behind you. Don w Michael Thompson wrote: > > Wollongong Airport is strangely not in Wollongong at all, but located at > Albion Park and is more indicative of rainfalls in the Shellharbour Council > Area. Thanks Laurier it gives me a better idea of the rainfall in my area. > > Michael > > > Wollongong Airport's new AWS recorded 25.0mm in 10 mins to 10.19am > > EST. The sequence of obs is: > > > > 68 METAR 1024 0900 10017KT 15.9/15.1 Q1009.4 RF00.2/078.6 > > 68 METAR 1024 0937 11018KT 16.0/15.0 Q1008.8 RF00.8/003.4 > > 68 SPECI 1024 0947 11017KT 16.0/15.1 Q1008.7 RF01.2/004.6 > > 68 METAR 1024 1000 11017KT 16.0/15.0 Q1008.7 RF00.6/005.2 > > 68 SPECI 1024 1019 03015KT 14.5/13.4 Q1010.1 RF25.0/031.2 > > 68 METAR 1024 1100 11006KT 14.1/13.8 Q1008.6 RF00.0/041.0 > > 68 METAR 1024 1200 26008KT 16.2/13.9 Q1008.4 RF00.0/041.0 > > > > Note: 78.6mm in the 24 hours to 9am, at which point the cumulative > > total in the right hand column resets to zero. Darkes Forest had 222mm > > in the 24 hours, and Robertson 129mm. > > > > The midday obs place the low off the coast near Jervis Bay. I'm > > continuing to put 3-hourly surface charts at > > http://www.ozemail.com.au/~wbc/aussiewx/, and the pressure falls on > > the chart at > > http://www.ozemail.com.au/~wbc/aussiewx/Latest_Isallobars_and_DP.gif > > are worth a look, with some solid falls on the north coast ahead of > > lines of storms that currently (1.15pm) look pretty impressive on > > Grafton radar. > > > > > > -- > > Laurier Williams > > Australian Weather Links and News > > http://www.ozemail.com.au/~wbc/ > > +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ > > 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------------------------------ 004 To: aussie-weather at world.std.com, aussie-weather at world.std.com From: "Nandina Morris" [nandina at alphalink.com.au] Subject: Re: aus-wx: SE QLD Severe Thunderstorm Advice Date: Mon, 25 Oct 99 10:40:22 PDT X-MIME-Autoconverted: from quoted-printable to 8bit by europe.std.com id UAA11150 Sender: aussie-weather-approval at world.std.com Reply-To: aussie-weather at world.std.com Great idea Marty - I would appreciate that, too. Cheers, Nandina nandina at alphalink.com.au ---------- > Hi everyone, > > Could someone please post a list of cloud form abbreviations with their full > title? I have a reference and pictures of the clouds themselves and their > names, > but not the abbreviations. Could you please include ACCAS - this is one of > never > even heard of! > > Cheers! > > Marty. > Brisbane, Australia > martyp at dynamite.com.au > Images of Canberra: http://www2.dynamite.com.au/martyp > Lightning Photos: http://www2.dynamite.com.au/martyp/lightning > 3D Photography: http://www.bit.net.au/~erinm/3d > ICQ: 11790565 > > -----Original Message----- > From: Anthony Cornelius > To: Australian Weather Mailing List > Date: Sunday, 24 October 1999 10:49 > Subject: aus-wx: SE QLD Severe Thunderstorm Advice > > > >Hi all, > > > >29.1C/DP of 20C here...very hot while taking my dog to obedience > >training...looking nice outside, with it looking 'stormy' earlier on. > >And some Accas too. > > > >IDW10Q00 > >BUREAU OF METEOROLOGY > >Queensland Region > >Brisbane Office > > > > > > > >PRIORITY > >SEVERE THUNDERSTORM ADVICE > >Issued by the Bureau of Meteorology, Brisbane > >at 10:27am EST on Sunday the 24th of October 1999 > > > >for the South-east Coast area. > > > >The Bureau of Meteorology advises people of the possibility of severe > >thunderstorms with damaging winds and large hail in the South-east coast > >area > >for the remainder of this morning and the afternoon. > > > >If severe thunderstorms develop then severe thunderstorm warnings will > >be > >issued. > > > >Updated information will be issued today as necessary on radio and will > >be > >available by telephone on > >1900 969 921 at 75 cents per minute. > > > >People in the threatened areas should consider what action they may need > >to take > >to prevent injuries and minimise damage if severe thunderstorms develop. > > > >-- > >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------------------------------ > +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 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: Mon, 25 Oct 1999 10:37:09 +1000 005 From: Michael Scollay [michael.scollay at telstra.com.au] Organization: Telstra Strategy & Research X-Mailer: Mozilla 4.5 [en] (X11; I; SunOS 5.5.1 sun4m) X-Accept-Language: en To: aussie-weather at world.std.com Subject: A Chain - Was "Re: aus-wx: March 1906 North Sydney Tornado - temp web page" Sender: aussie-weather-approval at world.std.com Reply-To: aussie-weather at world.std.com Rod Aikman wrote: > > Michael, > Interesting to see extracts of those old newspaper reports. Actually > a chain is 22 yards, or the length of a cricket pitch. It is handy to > remember some of this trivia when reading early accounts of storms, as > the chain was a common unit of length in pre metrication days. Agreed. Nice to see that in the old days a spade was called a spade and not a mini-spade... As for that "Chain", it's also good to know that the majority of decent diaries these days have a section in them concerning metric conversion and other units of measure... 1 chain = 20.1168 metres (approx:-) 1 furlong = 201.168 metres (approx:-) 1 furlong = 40 rods (no joke:-) ... 1 tahil = 37.799 grams 1 kati = .60479 kilograms 1 tonne = 10 quintals (this is metric!) It does surprise me that for once, an imperial measure was actually a multiple of 10 i.e 1 furlong = 10 chains. I was expecting something strange instead... Michael Scollay mailto:michael.scollay at telstra.com.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------------------------------ 006 Date: Mon, 25 Oct 1999 09:27:06 +0800 From: Michael Fewings [mike at strikeone.com.au] Organization: Strike One Lightning Photos X-Mailer: Mozilla 4.5 [en] (Win98; I) X-Accept-Language: en To: aussie-weather at world.std.com Subject: Re: aus-wx: The green Glow Sender: aussie-weather-approval at world.std.com Reply-To: aussie-weather at world.std.com Anthony, That was the most descriptive answer I could have hoped for. Thank you for providing it. Kind regards -- Michael Fewings Photographer of: Strike One Lightning Photos http://strikeone.com.au Web Master of: Australian Severe Weather Association Inc. http://www.severeweather.asn.au Anthony Spierings wrote: > Hello all. > > > The green flash or glow > > This is probably getting off topic, out of date, and rather long, but > someone might be interested ... :) Please excuse the tech talk. > > The green flash is copper vaporising. I doubt if the glow would be from an > arc inside the transformer. Most likely it is from the copper mains (ie > wires near the transformer). > > Using an 11 kV feeder as an example. > > For a nominal voltage of 11 kV (kV means 1000, so 11 kV is 11,000 Volts) the > feeder would be designed for a Basic Insulation Level (BIL) of 95 kV. To > withstand 95 kV BIL the distance between phases (or the conductors) can be > as low as 176 mm (I think). This means that you can energise two conductors > to a potential of 95 kV (at 20 C, atmospheric pressure at sea level, > specified humidity, specified pollution level, blah, blah) and the > electricity would not flash over between the conductors. > > When lightning strikes a powerline it ionises the air between the phases. > The ionised air has far lower impedance than normal air and electricity > flashes over. Once the arc is struck it becomes, to a large degree, > self-sustaining. The arc will continue until the power supply is > interrupted or the arc becomes elongated (twisted and extended by its own > magnetic fields) and it get "blown out". In the latter case, the air in the > arc area is still heavily ionised and the arc can re-strike. > > Back at the electricity substation there are high voltage circuit breakers. > (With design principal very similar to the circuit breakers on the > switchboard in your home.) Associated with the circuit breakers is > protection and control equipment that monitors the feeder for faults. > There are many variations on feeder layouts and the associated protection > gear. > > A typical overhead feeder would be rated at 300 A (A is for amperes). One > typical protection scheme measures the current flowing in the feeder between > phases (ie, 300 A) and the leakage current to earth (can be up to 5 Amps). > Now, for various reason, the protection does not trip the circuit breaker > the instant the phase to phase current exceeds 300 A. For one typical > protection scheme the "trip curve" follows what is called an Inverse > Definite Minimum Time (IDMT) curve. If the phase to phase current on the > feeder is, say, 400 Amps the feeder will trip off after 5 minutes. If the > phase to phase current is, say, 1000 Amps the feeder will trip after, say, 3 > seconds. (Remember the curve is "inverse".) If the phase to phase current > is, say, 6000 A, the feeder will trip off after, say, 300 milliseconds. But > because the relay is Definite Minimum Time the protection will not operate > any quicker than 300 milliseconds. > > The next consideration is the impedance (in other words resistance) of the > overhead conductor. > > If a fault occurs close in to a substation the impedance of the overhead > conductor is low. This causes a nice "fat" arc to occur (caused by the high > fault current). One would expect the circuit breaker to clear the fault in > around 0.85 seconds. (This is made up of the protection relay waiting 30 > power cycles at 0.02 seconds per cycle, plus 0.25 seconds for the circuit > breaker mechanism to operate.) > > If a fault occurs on the remote end of the feeder, the impedance is higher, > the fault current is lower, and the protection waits longer before > operating. But the arc itself is weaker. > > Power transformers are protected from lightning by surge arresters. These > are about the size of a soft drink can. You can see them sitting near the > terminals of the transformer. One side of the arrester is connected to the > high voltage conductor and the other side is connected to the tank of the > transformer. When exposed to an overvoltage the surge arrester conducts > electricity. As the arrester is conducting electricity the internal > semiconductor heats up, changing its electrical characteristics, and becomes > more resistive. At some point it becomes so resistive that it stops > conducting electricity (hopefully the overvoltage has passed) and everything > returns to normal. > > What power transformers do not like is being exposed to fault currents. > When a fault occurs, the upstream transformer supplies the fault current. > Large fault currents produce large magnetic fields. Large magnetic fields > produce large motive forces on the internal winding of the transformer. A > new transformer can well withstand these internal forces. But as a > transformer ages the internal insulating papers become brittle and the > cleats loose. Occasionally a transformer is exposed to one fault too many > and it fails internally. Because the transformer is contained inside a > (nearly) explosion proof tank you cannot see much from the outside. > Sometimes you cannot see much on the inside either. But occasionally a > de-tanked transformer looks like a bird's nest. > > Most faults on an overhead powerline are themselves transient in nature. > Example; after a lightning strike and the initial fault has cleared the > feeder can be returned to service. Most circuit breaker protecting overhead > feeders are equipped with "reclosers". When the feeder trips a timer starts > in the control system. After, say, 20 seconds, the circuit breaker > connecting the feeder to the power grid is closed (ie, re-closed). If the > fault is still there the circuit breaker trips and "lockouts" so it cannot > be closed until the protection and control system is reset. But, about 8 > times out of 10, the reclosure is successful. You have probably noticed > this yourself when, during a storm, the power goes off for a few seconds > then comes back on. These days, most power utilities also have automated > control systems that can transfer feeder buses from one source to another. > > I have probably over-answered you original question a bit. Network > performance during thunderstorms is a complex field, the stuff of > dissertations. > > Regards, > > Anthony Spierings > as029 at powerup.com.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------------------------------ 007 From: Blair Trewin [blair at met.Unimelb.EDU.AU] Subject: aus-wx: The weekend in Canberra To: aussie-weather at world.std.com (Aussie Weather) Date: Mon, 25 Oct 1999 11:38:44 +1000 (EST) X-Mailer: ELM [version 2.4 PL23] Sender: aussie-weather-approval at world.std.com Reply-To: aussie-weather at world.std.com I was in Canberra over the weekend, and got to witness the fringes of quite an impressive ECL. In Canberra rainfall amounts from ECLs depend critically on the precise orientation of the flow. If the flow is significantly south of east, the ranges south-east of Canberra (most people don't even know they exist, but there are numerous peaks over 1400m, and a near- continuous area of 1200+m stretching from south-east of Bungendore to east of Cooma) prove quite an effective rainshadow. This certainly proved to be the case on the weekend, with a total of only 7mm over the two days, most of which fell between about 6 and 8 on Sunday night. On a wider scale, the rainshadow effect of the Snowy Mountains is beautifully illustrated by the SE Australia rainfall map on the Bureau's climate page (http://www.bom.gov.au/ climate/) for Sunday. Much heavier rains at a similar distance from the coast (or further) a little further inland (Yass 49, Goulburn 52, Goulburn Airport 65, Bungonia 101). Also, 7 at Cooma (which is sheltered from the SE, although not to the same extent as Canberra), but 31 at Nimmitabel (which isn't). This detail will (hopefully) become apparent when the monthly rainfall returns come in - there is only one daily reporting station in the ranges SE of Canberra, Captains Flat (16), and it is on the western side of most of the ranges. On Saturday afternoon the topographic effects were very noticeable; I was running a race which went up the Orroral Valley (SW of Canberra) and it was significantly wetter at the far end of the course, a few kilometres closer to the main range, than it was at the tracking station. Saturday and Sunday were both notably cold days, although low maxima on both were spoilt by 0900 resets. Even so, Saturday's 24-hour maximum of 11 (rounded) is probably the lowest in October since 1968. (The maximum during the day of Saturday itself was 9). The temperature was between 7 and 11 from about 0600 Saturday to 0600 this morning. By the way, there's a new synoptic station opening in Canberra this week - at the new vineyard west of Holt. It seems quite an exposed location (although I don't know the precise details of the site) on top of a ridge, so I'd expect that the minimum temperatures would be somewhat higher than those at the airport or Tuggeranong. 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------------------------------ 008 From: John Woodbridge [jrw at pixelcom.net] To: "'aussie-weather at world.std.com'" [aussie-weather at world.std.com] Subject: RE: aus-wx: The weekend in Canberra Date: Mon, 25 Oct 1999 12:11:31 +1000 Organization: Pixel Components X-Mailer: Microsoft Internet E-mail/MAPI - 8.0.0.4211 Sender: aussie-weather-approval at world.std.com Reply-To: aussie-weather at world.std.com Just a small question. Was the weekend low which had such great effect on NSW (right up to QLD) really an ECL in the classic sense (i.e., warm cored). The Sat Pic at Sunday 12:00 UTC shows what appears to be a classic winter cyclone complete with frontal cloud mass. Sat pics of true ECL's I have seen generally have a circular cloud mass sometimes with a small hole in the middle - like a cyclone... John. >snip I was in Canberra over the weekend, and got to witness the fringes of quite an impressive ECL. +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 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------------------------------ 009 X-Sender: cmaunder at mail.dynamite.com.au X-Mailer: QUALCOMM Windows Eudora Pro Version 3.0.5 (32) Date: Mon, 25 Oct 1999 12:24:59 +1000 To: aussie-weather at world.std.com From: Chris Maunder [cmaunder at mail.com] Subject: Re: aus-wx: The weekend in Canberra Sender: aussie-weather-approval at world.std.com Reply-To: aussie-weather at world.std.com At 11:38 AM 10/25/99 +1000, you wrote: >I was in Canberra over the weekend, and got to witness the fringes >of quite an impressive ECL. Yup - what a weekend. yech. Interesting rainfalls patterns though... >By the way, there's a new synoptic station opening in Canberra this >week - at the new vineyard west of Holt. Excellent! ------------------------------------ Chris Maunder Canberra, Australia Dundas Software www.dundas.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------------------------------ 010 Date: Sun, 24 Oct 1999 19:26:04 -0700 (PDT) From: Jimmy Deguara [jimmydeguara at rocketmail.com] Subject: aus-wx: Fwd: ASWA%20Inc.%20NSW%20Info To: Aussie Weather [aussie-weather at world.std.com] Jimmy Deguara Sender: aussie-weather-approval at world.std.com Reply-To: aussie-weather at world.std.com Check this one out. We have corporations interested in our services!!! Jimmy Deguara --- MBot153164 at aol.com wrote: > From: MBot153164 at aol.com > Date: Sat, 23 Oct 1999 21:21:09 EDT > Subject: ASWA%20Inc.%20NSW%20Info > To: vicepresident at severeweather.asn.au > > Jimmy, > > Maybe you can help me my name is Malcolm Bottoms I > own Key Largo Mfg. we > build severe weather shelters. I am looking to > expand and go international > and I am looking for information in your area. The > shelter is one of the > largest on the market and offers a great many > features for the money. > Perhaps you could help me setup a dealership in your > area or lead me to > someone who can. I eagerly await your reply. > > Thank you > Malcolm Bottoms > Key largo Mfg. > > > ===== __________________________________________________ Do You Yahoo!? Bid and sell for free at http://auctions.yahoo.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------------------------------ 011 From: Blair Trewin [blair at met.Unimelb.EDU.AU] Subject: aus-wx: You are now leaving NSW. Please deposit all rain in the bins provided To: aussie-weather at world.std.com (Aussie Weather) Date: Mon, 25 Oct 1999 14:55:49 +1000 (EST) X-Mailer: ELM [version 2.4 PL23] Sender: aussie-weather-approval at world.std.com Reply-To: aussie-weather at world.std.com The above sign is not, as far as I know, erected on NSW's borders, but it might as well be on the rainfall patterns so far this month - check out how closely the area of above-average rainfall parallels the Queensland and Victorian borders at the rainfall percentages map at: http://www.bom.gov.au/climate/rainmaps/pmontha.shtml 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------------------------------ 012 From: "John Graham" [gorzzz at optusnet.com.au] To: "Aussie Weather" [aussie-weather at world.std.com] Subject: aus-wx: Baby Date: Sun, 24 Oct 1999 16:56:13 +1000 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 Hiya All, Congrats to Michael T on the arrival of a new storm chaser........at least you've got an excuse to have a look at the weather at 2,3 or 4 in the mornings now...hehehe Cheers John P.S.....Sorry it's taken sooo long to reply, my new(!) modem decided to stop playing....packed up it's bat & ball & wanted to go home.............. _______________________________________________________ John Graham Email: gorzzz at optusnet.com.au or gorzzz at yahoo.com Member of the Australian Severe Weather Assoc. (ASWA) http://www.severeweather.asn.au/ ICQ# 25440353 Snail Mail : P.O.Box 1072 Ballina 2478 N.S.W 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------------------------------ 013 From: "Michael Thompson" [michaelt at ozemail.com.au] To: [aussie-weather at world.std.com] Subject: aus-wx: Update on Wollongong Flash Floods Date: Mon, 25 Oct 1999 17:39:56 +1000 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 Damage to homes in the Figtree area, a couple with knee deep water throughout, I suppose that may be better than last August's 6ft deep, but twice in a little over 12 months and some people are very frustrated, and I wonder how the insurance companies will treat this having set a precedence. The local paper had a pic of a couple of cars with water to the windows, Alans Creek near the BHP steelworks had again broke its banks and flooded the main Wollongong-Shellharbour road. On the unfortunate side one person is missing presumed drowned in the Kangaroo River, at Kangaroo Valley. I hate to be devil's advocate but with 38 school children would you take them on an excursion into an area renown for flash floods ( drains the Barren Grounds area that has the Illawarra's highest annual rainfall of 1900mm ), given the forecasts that the BOM had be saying for at least 48 hours. 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------------------------------ 014 From: "Michael Thompson" [michaelt at ozemail.com.au] To: [aussie-weather at world.std.com] Subject: Re: aus-wx: Wollongong Rain Date: Mon, 25 Oct 1999 17:41:36 +1000 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 Calderwood is also down this end of the escarpment. This is where the most impressive totals seem to have been, but judging the damage in Figtree I think that some local areas may of went higher. > Michael... > upper Calderwood had 124 mm to 9 am and a further 69.5 mm since 9 am > yesterday. They had 52.5 mm between 9.40 and 10.20 am. I think it is in > the hills behind you. > Don w > > Michael Thompson wrote: > > > > Wollongong Airport is strangely not in Wollongong at all, but located at > > Albion Park and is more indicative of rainfalls in the Shellharbour Council > > Area. Thanks Laurier it gives me a better idea of the rainfall in my area. > > > > Michael > > > > > Wollongong Airport's new AWS recorded 25.0mm in 10 mins to 10.19am > > > EST. The sequence of obs is: > > > > > > 68 METAR 1024 0900 10017KT 15.9/15.1 Q1009.4 RF00.2/078.6 > > > 68 METAR 1024 0937 11018KT 16.0/15.0 Q1008.8 RF00.8/003.4 > > > 68 SPECI 1024 0947 11017KT 16.0/15.1 Q1008.7 RF01.2/004.6 > > > 68 METAR 1024 1000 11017KT 16.0/15.0 Q1008.7 RF00.6/005.2 > > > 68 SPECI 1024 1019 03015KT 14.5/13.4 Q1010.1 RF25.0/031.2 > > > 68 METAR 1024 1100 11006KT 14.1/13.8 Q1008.6 RF00.0/041.0 > > > 68 METAR 1024 1200 26008KT 16.2/13.9 Q1008.4 RF00.0/041.0 > > > > > > Note: 78.6mm in the 24 hours to 9am, at which point the cumulative > > > total in the right hand column resets to zero. Darkes Forest had 222mm > > > in the 24 hours, and Robertson 129mm. > > > > > > The midday obs place the low off the coast near Jervis Bay. I'm > > > continuing to put 3-hourly surface charts at > > > http://www.ozemail.com.au/~wbc/aussiewx/, and the pressure falls on > > > the chart at > > > http://www.ozemail.com.au/~wbc/aussiewx/Latest_Isallobars_and_DP.gif > > > are worth a look, with some solid falls on the north coast ahead of > > > lines of storms that currently (1.15pm) look pretty impressive on > > > Grafton radar. > > > > > > > > > -- > > > Laurier Williams > > > Australian Weather Links and News > > > http://www.ozemail.com.au/~wbc/ > > > +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ > > > 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------------------------------ 015 Date: Mon, 25 Oct 1999 18:00:58 +1000 From: Ross Portas [rportas at mindless.com] X-Mailer: Mozilla 4.7 [en] (Win98; I) X-Accept-Language: en To: "aussie-weather at world.std.com" [aussie-weather at world.std.com] Subject: aus-wx: 24/10 SEQ Storms Sender: aussie-weather-approval at world.std.com Reply-To: aussie-weather at world.std.com Unfortunately I was stuck at work all day on Sunday, but did manage to pop outside every so often to take a couple of quick snaps. The view I have from work isn't the best, so all of the pics are taken looking east or south east. The last 3 pics are of, (I think), the cell that produced marble sized hail over Ipswich, west of Brisbane, earlier in the afternoon. http://greenfield.fortunecity.com/fatcat/440/todayspic/ Cheers, Rosco. +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 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------------------------------ 016 X-Originating-IP: [203.35.83.4] From: "Halden Boyd" [haldenboyd at hotmail.com] To: aussie-weather at world.std.com Subject: Re: aus-wx: Storm Damage SE QLD ABC News report Date: Mon, 25 Oct 1999 02:27:31 PDT Sender: aussie-weather-approval at world.std.com Reply-To: aussie-weather at world.std.com Hello all..... This story reports on the damage to the rural sector from Saturday's storms. The yarn comes from our Toowoomba newsroom. Looks like we will be paying through the nose for all of those Chrissy fruit and vegies.... Cheers Halden (ABC News Lismore) http://www.abc.net.au/news/regionals/toowoomba/regtwb-25oct1999-1.htm PS. Had a couple of good ones here on Sunday but nothing to write home to Granma about. Michael Bath chased one....sorry Michael I tried your mobile but could not get you....was gonna suggest to head down to Coraki! There is a good spotting place there at Petersen's Quarry down Lagoon Road >From: Ross Portas >Reply-To: aussie-weather at world.std.com >To: "aussie-weather at world.std.com" >Subject: aus-wx: 24/10 SEQ Storms >Date: Mon, 25 Oct 1999 18:00:58 +1000 > >Unfortunately I was stuck at work all day on Sunday, but did manage to >pop outside every so often to take a couple of quick snaps. The view I >have from work isn't the best, so all of the pics are taken looking east >or south east. > >The last 3 pics are of, (I think), the cell that produced marble sized >hail over Ipswich, west of Brisbane, earlier in the afternoon. > >http://greenfield.fortunecity.com/fatcat/440/todayspic/ > >Cheers, >Rosco. > > +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ > 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 Email at http://www.hotmail.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------------------------------ 017 X-Sender: jdeguara at pop.ihug.com.au X-Mailer: QUALCOMM Windows Eudora Pro Version 4.2.0.58 Date: Mon, 25 Oct 1999 22:11:13 +1000 To: aussie-weather at world.std.com From: Jimmy Deguara [jdeguara at ihug.com.au] Subject: aus-wx: NSW AMOS meeting Sender: aussie-weather-approval at world.std.com Reply-To: aussie-weather at world.std.com Those ASWA and list people in Sydney this Wednesday, Please read below. I want to go to this one as I have said all along that the land surface is important in meteorology and MUST be included in modelling. I would like to go in with someone else. If you would like to go and don't mind my talking about chasing etc, please contact me via e-mail jdeguara at ihug.com.au ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- ---------------------------------------- The next meeting of the AMOS Sydney Centre will be held on Wednesday 27 October 1999. Venue: Bureau of Meteorology, 300 Elizabeth St (corner Foveaux St) Sydney (Opposite Central Railway Station) 15th floor Conference room Time: 7.00 pm for a 7.15 pm formal start Those attending the meeting will need to register on arrival with either Security in the Basement Level 1 carpark, or with the Concierge on the ground floor, who will then direct you to the meeting room. Parking is available in nearby streets, or in the basement of 300 Elizabeth St (entrance off Mary Street - the closest downramp to Foveaux St). Parking must be booked by contacting Andrew Treloar (details below) prior to the date of the meeting and giving your registration number and driver's name. The Speaker for the night will be Professor Andrew Pitman, Head of Department of Physical Geography, Division of Environmental and Life Sciences, Macquarie University. Professor Pitman will address the following topic: DOES LAND SURFACE CHANGE DRIVE WEATHER AND CLIMATE ? Abstract: Traditionally, the role of land surface conditions, and the role of changes in the surface in terms of land cover are not considered important factors in weather forecasting or climate change prediction. Recent results from major forecasting centres (e.g., NCEP, ECMWF) have suggested that the surface may be more important than generally thought. Results from the climate modelling community are also highlighting the role of land surface change and one US-based group now hypothesises that human induced surface changes are more important than greenhouse gases in causing regional climate changes. These perspectives will be reviewed and discussed. +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 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------------------------------ 018 Date: Mon, 25 Oct 1999 23:34:24 +1000 From: Kerrie Christian [kcact at wollongong.starway.net.au] X-Mailer: Mozilla 4.61 [en] (Win95; I) X-Accept-Language: en To: aussie-weather at world.std.com Subject: Re: aus-wx: Update on Wollongong Flash Floods Sender: aussie-weather-approval at world.std.com Reply-To: aussie-weather at world.std.com Michael raises an interesting point about the issuing of warnings - it would be interesting to know when the Illawarra was put on alert - I understand that it was definitely about midnight on Saturday night - with the first calls for help to Council engineers/SES about 8.00am on Sunday down in the Dapto area also I wonder if enough in the public understand the significance of a "severe storm warning" rating - and that we don't necessarily need a week of two of rain to saturate a catchment prior to a severe storm incident before real problems with flooding can occur Kerrie Christian Thirroul Michael Thompson wrote: > Damage to homes in the Figtree area, a couple with knee deep water > throughout, I suppose that may be better than last August's 6ft deep, but > twice in a little over 12 months and some people are very frustrated, and I > wonder how the insurance companies will treat this having set a precedence. > > The local paper had a pic of a couple of cars with water to the windows, > Alans Creek near the BHP steelworks had again broke its banks and flooded > the main Wollongong-Shellharbour road. > > On the unfortunate side one person is missing presumed drowned in the > Kangaroo River, at Kangaroo Valley. I hate to be devil's advocate but with > 38 school children would you take them on an excursion into an area renown > for flash floods ( drains the Barren Grounds area that has the Illawarra's > highest annual rainfall of 1900mm ), given the forecasts that the BOM had be > saying for at least 48 hours. > > 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------------------------------ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 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------------------------------ 019 Date: Mon, 25 Oct 1999 21:29:44 +0800 From: Michael Fewings [mike at strikeone.com.au] Organization: Strike One Lightning Photos X-Mailer: Mozilla 4.5 [en] (Win98; I) X-Accept-Language: en To: Aussie Weather [aussie-weather at world.std.com] Subject: aus-wx: Last day Tuesday (photo comp) Sender: aussie-weather-approval at world.std.com Reply-To: aussie-weather at world.std.com Hi all, Just a short note to mention that Tuesday (or today as you might read it) is the last day for submissions in this coming months ASWA photo competition. To all of you who have been putting it off, don't do it for too much longer. You can send them to webmaster at severeweather.asn.au Also make sure they are of the topic "precipitation - anything falling out of clouds except sky divers" Please provide an explanation (Only short) about your photo so that it makes it interesting to read and please make it 400 pixels across (or larger and I will scale it back). Kind regards -- Michael Fewings Photographer of: Strike One Lightning Photos http://strikeone.com.au Web Master of: Australian Severe Weather Association Inc. 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------------------------------
Document: 991025.htm
Updated: 30 October 1999 |
[Australian Severe Weather index] [Copyright Notice] [Email Contacts] |