Tropical Depression 24, currently stationary in the mid Caribbean, is
forecast to reach Tropical Storm status within 24 hours and will thus
(I think!) be named Wilma, This will be the 21st name used in the 2005
Atlantic hurricane season and is the last one in the names list. The
Greek alphabet will have to be used thereafter for any further "named"
Atlantic storms this year. If it develops as expected, Wilma will
become a hurricane within three days and will head into the Gulf of
Mexico. The GFDL model develops it into a Major Hurricane within three
days
http://www.wunderground.com/tropical/at200524.disc.html (reproduced
below my signature).
--
Dave
"Tropical Depression Twenty-Four Discussion Number 4
===========================================
Statement as of 11:00 am EDT on October 16, 2005
There have been no dramatic changes to the organization of the
Depression this morning...although there is more deep convection
near the center with hints of a little more banding. The latest
Dvorak classifications from tafb and sab were unchanged...at
T2.5/35 kt...but as noted in the previous discussion...with such a
Broad wind field the winds are probably still lagging the satellite
Signature.
An air force reconnaissance aircraft will be reaching
The depression early this afternoon to better assess the strength
Of the cyclone. The upper-level flow pattern remains extremely
Favorable for development...with low shear and good anticyclonic
Outflow...and there is a deep supply of warm water in the northwest
Caribbean. The rapid instensification component of the ships model
Is increasingly suggesting the likelihood of rapid development...
But a better defined inner core structure needs to form first. The
Gfdl model brings the depression to major hurricane status within
Three days...and the large scale factors are certainly in place to
Allow this to happen. The official forecast is closer to the ships
Model early in the forecast period but favors the gfdl later on.
The depression appears to have moved little over the past several
hours...and perhaps may have drifted a little northeast of the
Advisory position. This too...will be better assessed when the
Reconnaissance aircraft arrives. The synoptic reasoning of the
Forecast is unchanged from the previous advisory. The cyclone is
Caught between two mid-level high pressure centers...with the more
Dominant one being located over the central gulf of mexico. A
Mid-level short wave is currently north of the depression but will
Soon be moving by...which should allow the westward drift to resume
Later today or tonight as weak ridging builds in north of the
Cyclone.
Global models gradually erode the area of high pressure
Over the gulf as the mid- to upper-level low currently over
Southern california progresses eastward. Model guidance is in
Reasonable agreement on an eventual turn to the northwest and then
North as the ridge erodes late in the forecast period...but with
Significant differences in speed as the cyclone begins to
Accelerate. The official forecast is just a shade faster than the
Previous advisory and is very close to the dynamical model
consensus.
Forecaster Franklin
Forecast Max Winds
initial 16/1500z 17. 30 kt
12hr VT 35 kt
24hr VT 45 kt
36hr VT 55 kt
48hr VT 65 kt
72hr VT 80 kt
96hr VT 90 kt
120hVT 95 kt"