Invest 99L:Off E Coast-Discussions

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HURAKAN
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Re: Invest 99L,Off U.S.E.Coast: Discussions-Analysis & Imagery

#1161 Postby HURAKAN » Thu Sep 06, 2007 9:27 am

On the loop the LLC doesn't seem to be connected to the trough anymore.
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#1162 Postby storms in NC » Thu Sep 06, 2007 9:28 am

Bane wrote:it has a well defined circulation. maybe storms meant it looks like it is drifting sw?


True. And it is breaking away from the frountal.
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#1163 Postby KWT » Thu Sep 06, 2007 9:29 am

Still looks like the system is getting badly sheared right now but at least it still has a pretty strong LLC with it though how long that can continue like that for I'm not sure given the shear is just blowing any attempts at weak convection away.
Last edited by KWT on Thu Sep 06, 2007 9:31 am, edited 1 time in total.
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#1164 Postby CrazyC83 » Thu Sep 06, 2007 9:30 am

Since it still has a closed circulation, wouldn't be called a TD as soon as it has warmed the core up and broken from the front?
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Re: Invest 99L,Off U.S.E.Coast: Discussions-Analysis & Imagery

#1165 Postby windstorm99 » Thu Sep 06, 2007 9:31 am

Naked but still well defined...

Image
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#1166 Postby MCorder » Thu Sep 06, 2007 9:33 am

storms in NC wrote:It is starting to come back take a look.

http://www.ssd.noaa.gov/goes/flt/t3/loop-vis.html


You can see definite rotation, and apparently a slight movement back to the west.
Looking at the SLP, frontal boundary, and lessoning negative vorticity I'd say it has a chance. Will the 1-2 degree difference in sea temp make much of a difference?

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Last edited by MCorder on Thu Sep 06, 2007 9:36 am, edited 1 time in total.
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Re: Invest 99L,Off U.S.E.Coast: Discussions-Analysis & Imagery

#1167 Postby windstorm99 » Thu Sep 06, 2007 9:33 am

If you run a loop you can see it dropping to the SW a bit.
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#1168 Postby storms in NC » Thu Sep 06, 2007 9:34 am

CrazyC83 wrote:Since it still has a closed circulation, wouldn't be called a TD as soon as it has warmed the core up and broken from the front?


Have to give them time it just started to break away this morning. But I would think by this afternoon we will have a better 99l to look at.JIMO

When they see the trend they will do a update on their TWO
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Re: Invest 99L,Off U.S.E.Coast: Discussions-Analysis & Imagery

#1169 Postby JtSmarts » Thu Sep 06, 2007 9:35 am

The little circulation has been a fighter, that's for sure.
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Re: Invest 99L,Off U.S.E.Coast: Discussions-Analysis & Imagery

#1170 Postby Sanibel » Thu Sep 06, 2007 9:39 am

Like 98L, Atlantic isn't supporting naked spirals.
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#1171 Postby weatherwoman » Thu Sep 06, 2007 9:40 am

has anyone heard what derek has had to say today just wondering about his thoughts
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Re: Invest 99L,Off U.S.E.Coast: Discussions-Analysis & Imagery

#1172 Postby windstorm99 » Thu Sep 06, 2007 9:41 am

It lookS to been drifting SW...I just ran another visible loop and its approaching 28N.Thoughts?

Xtrap confirms.

Image
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Re: Invest 99L,Off U.S.E.Coast: Discussions-Analysis & Imagery

#1173 Postby storms in NC » Thu Sep 06, 2007 9:45 am

windstorm99 wrote:If you run a loop you can see it dropping to the SW a bit.


Yes it is going SW now. This afternoon you will see a better 99L. Just looking at the Vloop you can see it is trying hard to get some clouds around it.
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Re: Invest 99L,Off U.S.E.Coast: Discussions-Analysis & Imagery

#1174 Postby windstorm99 » Thu Sep 06, 2007 9:47 am

So far, this system has really baffled all the tropical cyclone models and really doing a horrible job initializing the upper trough.

Ridge on top now might keep it moving south for a while.No model showed this yesterday.
Last edited by windstorm99 on Thu Sep 06, 2007 9:48 am, edited 1 time in total.
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Re: Invest 99L,Off U.S.E.Coast: Discussions-Analysis & Imagery

#1175 Postby BigA » Thu Sep 06, 2007 9:48 am

It looks like the farther south it goes, the less shear it will encounter.

http://cimss.ssec.wisc.edu/tropic/real- ... g8shr.html
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Re: Invest 99L,Off U.S.E.Coast: Discussions-Analysis & Imagery

#1176 Postby windstorm99 » Thu Sep 06, 2007 9:49 am

A little more and it will almost be at my latitude lol...
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Re: Invest 99L,Off U.S.E.Coast: Discussions-Analysis & Imagery

#1177 Postby shortwave » Thu Sep 06, 2007 9:50 am

windstorm99 wrote:It lookS to been drifting SW...I just ran another visible loop and its approaching 28N.Thoughts?

Xtrap confirms.

Image


Still fairly close to what the models show for direction... can see that digging trough shifting to the sw.. as predicted... tracks may shift a bit further west the longer it takes to deepen. like most pro mets have been saying since late last night.. another 24-36 hrs before the upper level envirenment becomes more favorable... definitly would not write this off till after that.
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Re: Invest 99L,Off U.S.E.Coast: Discussions-Analysis & Imagery

#1178 Postby tolakram » Thu Sep 06, 2007 9:57 am

http://hadar.cira.colostate.edu/ramsdis ... ive_0.html

Still drifting to the NE as far as I can tell.
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#1179 Postby KWT » Thu Sep 06, 2007 9:58 am

Interesting to see most of the models started out around 29.5N appears too far north if the intial extrap positon is correct. I wonder whether this will have any impact on the eventual track of the system given its starting from a deeper position it could take slightly longer for the system to pick up a more NW run as the trough will have to dig deeper.

ps, by the way if it looks like its drifting NE its only because thats the way the shear is heading right now and its blowing all the cloud in that direction.
Last edited by KWT on Thu Sep 06, 2007 9:59 am, edited 1 time in total.
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Re: Invest 99L,Off U.S.E.Coast: Discussions-Analysis & Imagery

#1180 Postby storms in NC » Thu Sep 06, 2007 9:58 am

tolakram wrote:http://hadar.cira.colostate.edu/ramsdis/online/trop_ge_storm_relative_0.html

Still drifting to the NE as far as I can tell.

I see a SW but no NE
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