danielwAdministrator
(Moderator)
Fri Oct 29 2004 03:43 AM
Caribbean Update

Keith, GFS always "bears watching", but the latest update isn't indicating any tropical systems moving Northward.
The 850mb 15*C line extends to most all of the Gulf Coast and even into the GoM at one point. The mets here can give you a better handle on tropical systems and the 15*C line, but I would think that would make the air to cool and dry for a tropical system to sustain itself. BTW 15*C is 59*F, for conversion.
http://www.nco.ncep.noaa.gov/pmb/nwprod/analysis/namer/gfs/00/ten_s_loop.shtml
http://www.nco.ncep.noaa.gov/pmb/nwprod/analysis/namer/gfs/00/index_850_su_loop.shtml

TWC is watching an enlarging area of moderate to deep convection centered near 15.0N / 75.0W.

TROPICAL WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
205 AM EDT FRI 29 OCT 2004
....TROPICAL WAVE LOCATED BETWEEN HAITI AND JAMAICA ALONG 76W S OF 18N MOVING W NEAR 10 KT. A 2324 UTC QSCAT PASS INDICATED A SHARP WIND SHIFT TO THE N OF BARRANQUILLA COLOMBIA AND AN EASTERLY WIND SURGE OVER THE E/CNTRL CARIBBEAN. LOW-LEVEL SPEED CONVERGENCE AND THE WAVE AXIS ITSELF IS PRODUCING SCATTERED MODERATE/STRONG CONVECTION FROM 13N-17N BETWEEN 73W-77W.....

http://www.ssd.noaa.gov/PS/TROP/DATA/RT/WATL/IR4/20.jpg
http://orca.rsmas.miami.edu/wximages/jet/1_05/anis.html

http://hadar.cira.colostate.edu/ramsdis/online/data/tropical/180.jpg
The black dots on the ramsdis shots are from the lightning in the system!



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