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Old 11-July-2007, 04:35 AM
mattweather mattweather is offline
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Default Northern Rivers severe thunderstorms study

Hey all

I know someone wouldn't want me to chat about this study on this forums. But it generally scientific. Northern Rivers is major region in northern New South Wales in Australia. It lies between the border to Grafton, coast to Tabulam.

Northern Rivers region is most common severe thunderstorm activity in Australia storm season between September to April. We have alot of wild storms such as supercells (Texas-like storms). Over last few years, our storms have been increased their severity and activity. In 2002 (El Nino year) we had less fruequent storm season on record since 1905). Last storm season , over 50 severe storms have been passed through Northern Rivers and 15 of them were supercells.

In climatically, our thunderstorms have been alot more severe than last 55 years. Jimmy Degura said that Northern Rivers would have most supercells this season coming up on record. Therefore would be some superstorms such as Texas/US tornadoes.

Definition of Supercell is here

I would like to see the suggestions about this topic.

Cheers
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Old 11-July-2007, 05:26 AM
mattweather mattweather is offline
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Here are few photos of severe thunderstorms past few years. They are one of the best and most incredibley severe supercells.

18th December 1998--Severe HP monster supercell hits Ballina

http://www.australiasevereweather.co...8/1218jg03.jpg

17th Janaury 2001--Severe HP monster supercell hits Casino and Lismore

http://www.australiasevereweather.co...1/0117de32.jpg
16th January 2002--High Precipiation severe supercell hit Lismore

http://www.australiasevereweather.co...2/0116de29.jpg

26th October 2003--Nasty cold pool easter'ly severe supercells

http://www.australiasevereweather.co...3/1026de24.jpg

30th March 2003--Mothership spectacular mesocyclone

http://www.australiasevereweather.co...3/0330de29.jpg

18th March 2004--March supercell causes violent winds, hail and floods

http://www.australiasevereweather.co...4/0318de15.jpg
9th November 2004--Giant hailstones from merging supercells

http://www.australiasevereweather.co...4/1109de25.jpg

17th December 2005- Dangerous tornadic (possible tornado) supercell

http://www.australiasevereweather.co...5/1217rw17.jpg
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Last edited by Tinaa; 12-July-2007 at 09:36 PM. Reason: remove [img] - please do not hotlink
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Old 11-July-2007, 05:42 AM
mattweather mattweather is offline
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Due to posting issues of continued photos. Coming up soon.
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Old 11-July-2007, 06:48 AM
novaderrik novaderrik is offline
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so, what? you get thunderstorms there?
we get a lot of big thunderstorms around here- and i probably personally see 5-10 supercells a year right here in Minnesota, and actually see a couple of tornadoes a year. on July 1, 1997, i saw 3 big tornadoes in a 1/2 hour period. that was pretty neat. it's the kind of weather that makes life worth living, really..
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Old 11-July-2007, 05:04 PM
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Climate tends to be a chaotic system, but there do tend to be cycles or perhaps strange attractors which govern rough cycles. Such cycles have been seen to range from 25 years to perhaps hundreds of years.
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Old 11-July-2007, 05:34 PM
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Quote:
Originally Posted by novaderrik View Post
so, what? you get thunderstorms there?
we get a lot of big thunderstorms around here- and i probably personally see 5-10 supercells a year right here in Minnesota, and actually see a couple of tornadoes a year. on July 1, 1997, i saw 3 big tornadoes in a 1/2 hour period. that was pretty neat. it's the kind of weather that makes life worth living, really..
Yes; I agree (but not so strongly). What exactly do you wish to discuss here?
Other than taking up bandwith with the photos (which, by the way, are impressive), I'm not quit clear of the point.

But; at least you acknowledged that others do have thunderstorms because you used one of the standard units of measurements...the Texas.
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Old 11-July-2007, 08:55 PM
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Maksutov Maksutov is offline
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Default Re: Northern Rivers severe thunderstorms study

I don't see much in the way of a "study" here, just a lot of (admittedly pretty) pictures.

BTW, we just had a 5-minute t-storm here: The Rhode Island.
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Old 21-July-2007, 06:45 PM
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We had a stern wheel riverboat the SCI-tanic, that was flipped by a "runaway roll vortex" from a downburst. The pilot tried to steer into prevailing winds, but the downburst caught him in the side with the freak winds. Whippoorwill was flipped by a tornado some years before this. Something to consider next time you get on a high profile riverboat during storms.
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