000
AXNT20 KNHC 252339
TWDAT 

TROPICAL WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
705 PM EST MON FEB 25 2008

TROPICAL WEATHER DISCUSSION FOR NORTH AMERICA...CENTRAL 
AMERICA...THE GULF OF MEXICO...THE CARIBBEAN SEA...NORTHERN 
SECTIONS OF SOUTH AMERICA...AND THE 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 
1715 UTC.

...ITCZ...
THE ITCZ AXIS IS CENTERED ALONG 7N10W 3N20W 1N30W EQ45W 1S50W. 
WIDELY SCATTERED MODERATE CONVECTION IS FROM 4N-7N BETWEEN 
13W-15W...FROM EQ-2N BETWEEN 14W-16W...AND FROM 3N-5N BETWEEN 
18W-20W.    

...DISCUSSION...

GULF OF MEXICO...
A 1018 MB HIGH IS CENTERED OVER THE NE GULF OF MEXICO NEAR 
27N86W PRODUCING LIGHT WINDS AND FAIR WEATHER.  ELSEWHERE...THE 
CENTRAL GULF HAS 10-15 KT SLY SURFACE FLOW...WHILE THE W GULF W 
OF 95W HAS 20-25 KT SLY FLOW.  IN THE UPPER LEVELS...ZONAL FLOW 
PREVAILS WITH STRONG SUBSIDENCE PRODUCING CLOUDLESS UPPER 
ELEVATIONS.  EXPECT A STRONG...FAST MOVING COLD FRONT TO MOVE 
OVER THE W GULF TOMORROW MORNING AND EXTEND FROM THE FLORIDA 
PANHANDLE TO TAMPICO MEXICO BY TOMORROW EVENING WITH STRONGEST 
CONVECTION OVER FLORIDA AND THE NE GULF.  GALE FORCE WINDS ARE 
EXPECTED BEHIND THE FRONT WITH MUCH COOLER TEMPERATURES.      

CARIBBEAN...
MODERATE TRADES DOMINATE THE CARIBBEAN SEA AND CENTRAL AMERICA.  
PATCHES OF BROKEN LOW CLOUDS WITH SCATTERED SHOWERS DOTS THE 
AREA MOSTLY E OF 68W...N OF 17N...AND W OF 82W.  IN OTHER WORDS 
THE CENTRAL CARIBBEAN S OF 17N HAS FAIR WEATHER.  IN THE UPPER 
LEVELS...ZONAL FLOW PREVAILS WITH STRONG SUBSIDENCE.  A BAND OF 
THIN HIGH CLOUDS MOVING E ARE HOWEVER BETWEEN 11N-17N FROM 
NICARAGUA TO BARBADOS.  EXPECT LITTLE CHANGE OVER THE NEXT 24 
HOURS EXCEPT FOR INCREASED CLOUDINESS OVER THE YUCATAN PENINSULA 
AND W CUBA DUE TO THE APPROACHING COLD FRONT.    

ATLANTIC...
AS OF 2100 UTC...A COLD FRONT IS OVER THE W ATLANTIC FROM 32N60W 
TO THE BAHAMAS ALONG 27N70W 23N80W.  SCATTERED SHOWERS ARE 
WITHIN 60 NM S OF FRONT.  WIDELY SCATTERED MODERATE CONVECTION 
IS FROM 30N TO BEYOND 32N BETWEEN 57W-61W.  A 1027 MB HIGH IS 
OVER THE E ATLANTIC NEAR 33N28W.  A SURFACE RIDGE AXIS EXTENDS 
SW FROM THE HIGH TO THE CENTRAL ATLANTIC NEAR 25N52W.  IN THE 
UPPER LEVELS... ZONAL FLOW IS N OF 20N FROM 40W-80W.  AN UPPER 
LEVEL LOW IS OVER THE E ATLANTIC NEAR 24N30W.  ANOTHER UPPER 
LEVEL LOW IS FURTHER S NEAR 17N38W.  AN UPPER LEVEL HIGH IS 
CENTERED OVER THE TROPICAL E ATLANTIC NEAR 8N20W.   A JETSTREAM 
IS INDUCED BETWEEN THESE UPPER SYSTEMS PRODUCING A SWATH OF HIGH 
LEVEL CLOUDINESS FROM 10N40W TO BEYOND 24N16W OVER W AFRICA.  

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FORMOSA