TROPICAL DISCUSSION - INTERNATIONAL DESKS
NWS HYDROMETEOROLOGICAL PREDICTION CENTER CAMP SPRINGS MD
212 PM EDT TUE SEP 25 2007 (excerpts only)

...AT LOW LEVELS...IT REFLECTS AS AN ILL ORGANIZED LOW NEAR 21N 94W...WHERE IT IS NOW EXPECTED TO MEANDER THROUGH 72 HRS.
THE MODELS STILL FORESEE LITTLE CHANGE IN INTENSITY...AND THE NHC IS NOT EXPECTING IT TO
EVOLVE INTO A TROPICAL STORM.
BUT THE GFS STILL SHOWS SLOW EVOLUTION TO A WEAK SUBTROPICAL CYCLONE.

FARTHER EAST...WATER VAPOR IMAGERY SHOWS A CLOSED UPPER LOW NEAR 29N/ 74W ... SUPPORTING A TROUGH INTO FLORIDA/ NORTHERN BAHAMAS. THE SYSTEM IS CUTOFF FROM THE FLOW... AND IT IS EXPECTED TO WEAKEN TO AN OPEN TROUGH ALONG 80W BY 48-60 HRS. THROUGH 72 HRS IT IS EXPECTED TO NEARLY FILL.
AT MID/LOW LEVELS IT WILL SUPPORT A
TROUGH ACROSS THE NORTHWEST BAHAMAS TO WESTERN CUBA... WHERE IT IS EXPECTED TO PERSIST DURING THE NEXT THREE DAYS. THE TROUGH IS TO CONTINUE ENHANCING DEEP CONVECTION ACROSS THE NORTHWEST AND
CENTRAL BAHAMAS.

TROPICAL DISCUSSION

http://www.hpc.ncep.noaa.gov/html/discuss.shtml