000
AXNT20 KNHC 192357
TWDAT
TROPICAL WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
805 PM EDT FRI SEP 19 2008
TROPICAL WEATHER DISCUSSION FOR NORTH AMERICA...CENTRAL
AMERICA...GULF OF MEXICO...CARIBBEAN SEA...NORTHERN SECTIONS
OF SOUTH AMERICA...AND ATLANTIC OCEAN TO THE AFRICAN COAST
FROM THE EQUATOR TO 32N. THE FOLLOWING INFORMATION IS BASED
ON SATELLITE IMAGERY...METEOROLOGICAL ANALYSIS...WEATHER
OBSERVATIONS...AND RADAR.
BASED ON 1800 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH
2315 UTC.
...TROPICAL WAVES...
A TROPICAL WAVE...ACCOMPANIED BY A BROAD SURFACE LOW PRESSURE
SYSTEM...CONTINUES TO PRODUCE WIDESPREAD CLOUDINESS AND SHOWERS
OVER THE LESSER ANTILLES...AND ADJACENT CARIBBEAN AND ATLANTIC
WATERS. ITS AXIS IS ALONG 63W SOUTH OF 19N MOVING SLOWLY WWD.
THIS SYSTEM HAS BECOME A LITTLE BETTER ORGANIZED TODAY...AND
ALTHOUGH UPPER-LEVEL WINDS ARE CURRENTLY UNFAVORABLE...THEY ARE
EXPECTED TO BECOME MORE CONDUCIVE FOR SOME ADDITIONAL
DEVELOPMENT TO OCCUR OVER THE NEXT COUPLE OF DAYS.
CARIBBEAN SEA...
ATTENTION REMAINS FOCUSED ON THE ACTIVE TROPICAL WAVE LOCATED
OVER THE EASTERN CARIBBEAN THAT IS PRODUCING WIDESPREAD
CLOUDINESS AND SHOWERS OVER THE LESSER ANTILLES AND ADJACENT
CARIBBEAN AND ATLANTIC WATERS. CLUSTERS OF MODERATE TO ISOLATED
STRONG CONVECTION COVER THE AREA FROM 11N-18N BETWEEN 56W-61W
MORE CONCENTRATED N OF 14N. MOISTURE AHEAD OF THE WAVE AXIS HAS
ALREADY REACHED THE UK/US VIRGIN ISLANDS WITH THE SAN JUAN
DOPPLER RADAR SHOWING SCATTERED TO NUMEROUS SHOWERS WITH
EMBEDDED TSTMS MOVING WWD ACROSS THESE ISLANDS. THE GFS COMPUTER
MODEL HAS THE DEEP TROPICAL MOISTURE ASSOCIATED WITH THIS WAVE
SPREADING OVER THESE ISLANDS AND THE EASTERN CARIBBEAN LATE
TONIGHT INTO SATURDAY...AND OVER DOMINICAN REPUBLIC ON SUNDAY
AS THE WAVE CONTINUES TO MOVE SLOWLY WWD.
New guests are ready for a party?
ATLANTIC OCEAN...
A PAIR OF TROPICAL WAVES ARE MOVING WWD ACROSS THE TROPICAL ATLC...AND A NEW ONE APPEARS TO MOVE OFF THE WEST
AFRICAN COAST
