Karl to hit Iceland as TS

wabbitoid · #1 Postby **wabbitoid** » Wed Sep 22, 2004 11:47 am

Well, technically not a Tropical Storm, but they are forecasting those kind of winds.

Has this ever happened before?

James · #2 Postby **James** » Wed Sep 22, 2004 12:14 pm

Kate came pretty close last year - as an extratropical storm:-

http://weather.unisys.com/hurricane/atlantic/2003/KATE/track.gif

cape_escape · #3 Postby **cape_escape** » Wed Sep 22, 2004 12:18 pm

Has this ever happened before?[/quote]

That's what I was wondering! Isn't the water too cold there?

#4 Postby **Buck** » Wed Sep 22, 2004 12:20 pm

I'm sure it has. You gotta think with its location, Iceland is used to extreme weather.

It will probably be an extratropical storm.

byrd_ato · #5 Postby **byrd_ato** » Wed Sep 22, 2004 12:40 pm

I've never understood the term "extratropical". Can someone please explain it? Thank you

djti · #6 Postby **djti** » Wed Sep 22, 2004 12:42 pm

extratropical means that a previously tropical (warm core) storm has taken on the characteristics of a regular low pressure (cold core) system....

KWT · #7 Postby **KWT** » Wed Sep 22, 2004 12:42 pm

Here in the UK we have had extra-tropicals before,infact Iceland have them suprisingly often as HP over Europe usually stops them from hitting here.

We had Charley 1986 that brought 60Mph gusts and 90MM of rain.

byrd_ato · #8 Postby **byrd_ato** » Wed Sep 22, 2004 1:21 pm

Thanks for the explanation

#9 Postby **PurdueWx80** » Wed Sep 22, 2004 2:29 pm

djti wrote:extratropical means that a previously tropical (warm core) storm has taken on the characteristics of a regular low pressure (cold core) system....

Not really...extratropical is just a qualifier given to a cyclone (typically) that forms or resides outside of the tropics...just as the word itself tells you. Extratropical systems are cold core and can sometimes form from warm core systems. However, the majority of cyclones (seen in the day to day weather across the continental US) are extratropical in nature.

wabbitoid · #10 Postby **wabbitoid** » Wed Sep 22, 2004 2:52 pm

Thanks everyone, especially KWT.

What is the main difference then in a "cold core"? Lack of convection?

#11 Postby **PurdueWx80** » Wed Sep 22, 2004 2:56 pm

Well...sorta. The deep convection near the center of a tropical cyclone releases all sorts of latent heat, thus there is actually warm air at unusually high levels in the atmosphere. In an extratropical system, say near 50N, there usually isn't deep convection right around the center of the storm. Without that latent heating, other baroclinic processes help to deepen the storm, and there is nothing to warm the air here, so it remains cold.

Karl to hit Iceland as TS

Karl to hit Iceland as TS

Re: Karl to hit Iceland as TS

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