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#246238 - 28/03/2007 11:37 First Ever Hurricane Wind Warning For Southern Australian Waters
thermalben Offline
Weather Freak

Registered: 17/04/2001
Posts: 769
Loc: Tweed Coast
Alex Zadnik's written a nice article regarding the amazing low in the Bight - this is a pretty amazing system.

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#246239 - 28/03/2007 12:45 Re: First Ever Hurricane Wind Warning For Southern Australian Waters
Ripley2006 Offline
Member

Registered: 16/07/2006
Posts: 54
Loc: adelaide
I wish there was more stormies like there was this morning down at my local beach :-)

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#246240 - 28/03/2007 13:59 Re: First Ever Hurricane Wind Warning For Southern Australian Waters
eternal rain Offline
Member

Registered: 10/07/2004
Posts: 5685
Loc: the great sydney desert
Theyre not rare, they happen rather frequently from memory. sure looks nice on the sat pic

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#246241 - 28/03/2007 14:23 Re: First Ever Hurricane Wind Warning For Southern Australian Waters
teckert Offline
Weatherzone Moderator

Registered: 27/05/2001
Posts: 17705
Loc: NE suburbs, Adelaide, South Au...
errr.. I dont think so. Not at that latitude. I'm pretty sure both Alex Zadnik and Stuart Coombs know what they are talking about.

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#246242 - 28/03/2007 14:44 Re: First Ever Hurricane Wind Warning For Southern Australian Waters
TOM1111 Offline
Member

Registered: 27/10/2004
Posts: 2789
Loc: medowie near williamtown-octob...
i think you should keep quiet on this one bokkey

superbombs dont happen evey day at that lattitude mate

definately a epic swell producing system

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#246243 - 28/03/2007 15:09 Re: First Ever Hurricane Wind Warning For Southern Australian Waters
Windee Offline
Member

Registered: 23/02/2006
Posts: 290
Loc: What if this, is the new norma...
Thats an fantastic looking system, been watching it for a few days now. Poops all over any TC to come near Aust in a long time. The presure gradients are just devine.

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#246244 - 28/03/2007 16:07 Re: First Ever Hurricane Wind Warning For Southern Australian Waters
SAsurfa Offline
Weather Freak

Registered: 29/10/2005
Posts: 576
Loc: Adelaide
Looks amazing, I love the sat. picture and what causes this low to stall and deepen so much out of seemingly nowhere??

And has this kind of event ever happened before too this intensity, from the article it seems not at this higher lattitude?

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#246245 - 28/03/2007 17:43 Re: First Ever Hurricane Wind Warning For Southern Australian Waters
Thunderstruck Offline
Lightning man

Registered: 10/05/2001
Posts: 15024
Loc: Seaford Meadows, SA
Agreed, it is rare at that latitude - you know that Bokkey. This is a particularly unique system in the way it developed so rapidly at the lat it did. Hence the first ever hurricane force warning...would be some phenomenal condits around that low atm.

It looked amazing on the progs and it hasn't disappointed.

TS cool

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#246246 - 28/03/2007 18:47 Re: First Ever Hurricane Wind Warning For Southern Australian Waters
eternal rain Offline
Member

Registered: 10/07/2004
Posts: 5685
Loc: the great sydney desert
If its rare at that latitude then how come ive seen so many of those very deep lows between TAS and NZ at ~40S? confused confused

One of them in fact got as low as 955hpa back in dec 2004. I guess this one is special because its further west closer to australian coasts.

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#246247 - 28/03/2007 20:28 Re: First Ever Hurricane Wind Warning For Southern Australian Waters
percy_04 Offline
Weatherzone Addict

Registered: 22/05/2004
Posts: 1653
Loc: Unley, SA, Fine weather bubble...
I think what you might be missing Bokkey is the "Bombing" part of it. Rarely does a low pressure system fall so rapidly. if you read the article it is some phenominal number - 33hpa or something. Low pressure systems of the pressure may make it up that far but rarely do the "bomb" like that smile

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#246248 - 28/03/2007 20:29 Re: First Ever Hurricane Wind Warning For Southern Australian Waters
Johnoo Offline
Member

Registered: 23/11/2006
Posts: 8610
Loc: From: Where it forgot to Rain....
Swells up to 7 metres on SA/Vic/Tas beaches. I think this time next week its the easter Bells beach surfing tournament in Torquay imagine if this had of been in a weeks time wow

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#246249 - 28/03/2007 20:30 Re: First Ever Hurricane Wind Warning For Southern Australian Waters
thermalben Offline
Weather Freak

Registered: 17/04/2001
Posts: 769
Loc: Tweed Coast
It's the speed at which the low 'bombed', which makes it such a special event. This is also what caused the extremely high wind speeds.

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#246250 - 28/03/2007 20:34 Re: First Ever Hurricane Wind Warning For Southern Australian Waters
Johnoo Offline
Member

Registered: 23/11/2006
Posts: 8610
Loc: From: Where it forgot to Rain....
I wonder if the warm ssts in the southern ocean/bight areas may have helped to cause it to bomb so quickly?

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#246251 - 28/03/2007 20:48 Re: First Ever Hurricane Wind Warning For Southern Australian Waters
TOM1111 Offline
Member

Registered: 27/10/2004
Posts: 2789
Loc: medowie near williamtown-octob...
Quote:
Originally posted by die elnino:
If its rare at that latitude then how come ive seen so many of those very deep lows between TAS and NZ at ~40S? confused confused

One of them in fact got as low as 955hpa back in dec 2004. I guess this one is special because its further west closer to australian coasts.
from swellnet to help you understand bokkey

While a bombing low is defined as a drop in central pressure of 24hPa over 24 hours, a 'superbomb' or 'ultrabomb' takes into account the strength of the winds based on latitude, which is expressed in 'bergerons'. In order to upgrade the classification of a bombing low to a superbomb or ultrabomb, the intensification rate must be greater than 2 bergerons. "According to the official charts, this system comes in at 2.07 bergerons at 40 degrees south in the 24 hours ending 12UTC yesterday" said Stuart. There's a marked difference between bombing lows in the polar regions compared to the mid latitudes, with wind strengths in the polar regions usually exhibiting less strength (from a comparable pressure drop) due to the effects of latitude.

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#246252 - 28/03/2007 21:18 Re: First Ever Hurricane Wind Warning For Southern Australian Waters
eternal rain Offline
Member

Registered: 10/07/2004
Posts: 5685
Loc: the great sydney desert
sorry, my bad. I thought the previous ones bombed too and am surprised this is the "first" hurricane warning for that area. There was the WA one a few months ago (1 in a 100 year storm) or something. never mind confused

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#246253 - 28/03/2007 22:25 Re: First Ever Hurricane Wind Warning For Southern Australian Waters
Johnoo Offline
Member

Registered: 23/11/2006
Posts: 8610
Loc: From: Where it forgot to Rain....
Yeah I think that only got down too 982hps or 984hps or something though Bokkey

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#246254 - 28/03/2007 23:21 Re: First Ever Hurricane Wind Warning For Southern Australian Waters
---- Offline
Meteorological Motor Mouth

Registered: 25/11/2002
Posts: 5788
doesn't it look good spinning away down there.

Imagine the potential havoc if it was 1000km or more further north?!

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#246255 - 29/03/2007 00:43 Re: First Ever Hurricane Wind Warning For Southern Australian Waters
teckert Offline
Weatherzone Moderator

Registered: 27/05/2001
Posts: 17705
Loc: NE suburbs, Adelaide, South Au...
and that one also had nowhere near the wind speeds of this low....

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#246256 - 29/03/2007 09:35 Re: First Ever Hurricane Wind Warning For Southern Australian Waters
seaworthy Offline
Weatherzone Addict

Registered: 16/08/2004
Posts: 3674
Loc: Gawler East, SA - 102m
Poor old Boris you cant take a trick can ya mate

I'm heading down the south coast today... will get any pics before it starts to abate too much

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#246257 - 29/03/2007 14:34 Re: First Ever Hurricane Wind Warning For Southern Australian Waters
TOM1111 Offline
Member

Registered: 27/10/2004
Posts: 2789
Loc: medowie near williamtown-octob...
looking at the swellnet surf cams it doesnt look very big at all yet i guess the swell is lagging a bit

13th beach looks small

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#246258 - 29/03/2007 16:45 Re: First Ever Hurricane Wind Warning For Southern Australian Waters
Yabbra Offline
Member

Registered: 30/03/2002
Posts: 3398
Loc: Wardell, Northern Rivers N.S....
Why is it classed as a hurricane? or at least given hurricane warnings instead of severe weather or something.

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#246259 - 29/03/2007 17:05 Re: First Ever Hurricane Wind Warning For Southern Australian Waters
TOM1111 Offline
Member

Registered: 27/10/2004
Posts: 2789
Loc: medowie near williamtown-octob...
its not classed as a hurricane
there was hurricane strength wind warnings out for coastal waters

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#246260 - 29/03/2007 17:52 Re: First Ever Hurricane Wind Warning For Southern Australian Waters
Inclement Weather Offline
Meteorological Motor Mouth

Registered: 07/03/2006
Posts: 5373
Loc: Diamond Valley
Quote:
Originally posted by Yabbra:
Why is it classed as a hurricane? or at least given hurricane warnings instead of severe weather or something.
Yes Yabbra, there are three main categories of Ocean wind warnings: GALE, STORM, and HURRICANE force winds. Hurricane force is sustained winds (10 minutes) of >64 kts.
_________________________
The original donut hole

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#246261 - 29/03/2007 19:35 Re: First Ever Hurricane Wind Warning For Southern Australian Waters
Matt12 Offline
Member

Registered: 23/03/2007
Posts: 54
Loc: Boronia,Victoria
It's just so amazing to see that on the satelite at the bottom of Australia rather than at the top.

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