Looks like Jeanne had a bad dinner...

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Windy
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Looks like Jeanne had a bad dinner...

#1 Postby Windy » Thu Sep 23, 2004 9:46 pm

... of dry air. You can see her entraining it in, and right now the eyewall appears to be opening to the south/falling apart.

bad dinner:

http://www.ssd.noaa.gov/PS/TROP/DATA/RT/float-wv-loop.html

falling apart:

http://www.ssd.noaa.gov/PS/TROP/DATA/RT/float-bd-loop.html
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jagesq
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#2 Postby jagesq » Thu Sep 23, 2004 9:50 pm

Unfortunately still plenty of time for that convection to wrap around as she hits the Bahamas and tracks West.
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#3 Postby btangy » Thu Sep 23, 2004 10:11 pm

Some cooler SSTs ahead and dry air pushing south may induce some weakening in the short term. Assuming the dry air moistens up some by the time Jeanne reaches the Bahamas, then it can strengthen. Right now the air is fairly dry above 700mb and there is pretty much no CAPE in the Nassau sounding. Which indiciates a stable environment and not one very supportive of a major hurricane.
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Anonymous

#4 Postby Anonymous » Thu Sep 23, 2004 10:15 pm

although the eye is quite distinct and there is good organization...
the convection has weakened. This was probably caused by the fact
that Jeanne has been meandering for a day or so...resulting in
upwelling and cooler waters. The winds could be lowered at this
time but I rather wait for the recon which will check the intensity
early Friday. So for now the winds remain at 90 knots. The
upper-level environment is expected to be favorable between the
Bahamas and Florida...and as soon as Jeanne moves westward over
this area...it will encounter warmer waters. Some strengthening is
then anticipated.

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djti

#5 Postby djti » Thu Sep 23, 2004 10:15 pm

and even though the official advisory has 105...even they said thats probably not the case....so shell be coming up from 95 or so.....not 105.....
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#6 Postby crazycajuncane » Thu Sep 23, 2004 10:27 pm

Can't be good that she's turning in the same waters for days. She will strengthen on the way to the USA.
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logybogy

#7 Postby logybogy » Thu Sep 23, 2004 10:38 pm

Last frame shows the first deep red convection in many hours.

It'll be interesting to see what she looks like after the eclipse. She looked crappy last night before the eclipse and then improved her convection greatly afterward.

http://www.ssd.noaa.gov/PS/TROP/DATA/RT ... -loop.html
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Re: Looks like Jeanne had a bad dinner...

#8 Postby otowntiger » Thu Sep 23, 2004 11:22 pm

Windy wrote:... of dry air. You can see her entraining it in, and right now the eyewall appears to be opening to the south/falling apart.

bad dinner:

http://www.ssd.noaa.gov/PS/TROP/DATA/RT/float-wv-loop.html

falling apart:

http://www.ssd.noaa.gov/PS/TROP/DATA/RT/float-bd-loop.html


Yeah, she does appear to be steadily weakening, dissapating in front of our very eyes. It is frustrating the NHC has no better idea on intensity forecasts than they do. It seems more often than not they overdo the strength of these storms. At this rate, she'll be a weak cat 1 by morning. Somehow they've got to figure it out. This is as important as know where they go.
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