000
AXNT20 KNHC 032344
TWDAT 

TROPICAL WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL  
805 PM EDT MON MAY 03 2010

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...

...ITCZ...

ITCZ AXIS IS CENTERED ALONG 6N10W 7N22W 6N30W 6N45W 4N51W. AN 
EMBEDDED SURFACE TROUGH IS ALONG 22W FROM 2N-10N. SCATTERED 
SHOWERS ARE WITHIN 90 NM OF THE TROUGH AXIS. ELSEWHERE... 
SCATTERED MODERATE CONVECTION IS FROM 5N-8N BETWEEN 14W-17W. 
WIDELY SCATTERED MODERATE CONVECTION IS FROM 5N-8N BETWEEN 
38W-41W...AND FROM 1N-7N BETWEEN 48W-50W.  

...DISCUSSION...

GULF OF MEXICO...
AS OF 2100 UTC...A COLD FRONT EXTENDS FROM THE FLORIDA PANHANDLE 
TO THE NE GULF OF MEXICO FROM 31N86W TO 28N90W. SCATTERED 
MODERATE TO ISOLATED STRONG CONVECTION IS WITHIN 30 NM OF THE 
FRONT. A STATIONARY FRONT CONTINUES TO THE SW GULF TO A 1009 MB 
LOW NEAR 23N93W WITH NO SHOWERS NOTED. THE SURFACE PRESSURE 
GRADIENT OVER THE GULF IS LAX COMPARED TO YESTERDAY THUS WINDS 
ARE NOW PREDOMINATELY 10-15 KT. VISIBLE SATELLITE IMAGERY SHOWS 
SMOKE AND HAZE OVER MOST OF THE GULF ORIGINATING FROM S MEXICO 
AND CENTRAL AMERICA. COMPOSITE RADAR IMAGERY OF THE GULF SHOWS 
NO CONVECTION OTHER THAN THOSE OVER THE COLD FRONT. IN THE UPPER 
LEVELS...AN UPPER LEVEL HIGH IS CENTERED OVER S FLORIDA NEAR 
26N83W PRODUCING ANTICYCLONIC UPPER LEVEL WINDS OVER FLORIDA AND 
THE GULF. A BAND OF UPPER LEVEL MOISTURE AND HIGH CLOUDS ARE 
OVER THE COLD FRONT. STRONG SUBSIDENCE IS OVER THE REMAINDER OF 
THE GULF. EXPECT OVER THE NEXT 24 HOURS FOR...THE COLD FRONT TO 
BECOME STATIONARY WITH CONTINUED CONVECTION. 

CARIBBEAN SEA...
15-20 KT TRADEWINDS ARE NOTED THROUGHOUT THE CARIBBEAN SEA WITH 
STRONGEST WINDS OVER THE N COAST OF COLOMBIA. CLUSTERS OF 
SCATTERED MODERATE TO STRONG CONVECTION ARE OVER PANAMA...  N 
COLOMBIA...AND W VENEZUELA FROM 6N-12N BETWEEN 71W-83W. SIMILAR 
CONVECTION IS INLAND OVER GUATEMALA. ELSEWHERE...SCATTERED 
SHOWERS ARE OVER THE E CARIBBEAN E OF 73W MOVING W WITH THE 
TRADEWINDS. RADAR IMAGERY FROM PUERTO RICO CONFIRMS SCATTERED 
SHOWERS THROUGHOUT ITS COVERAGE AREA. IN THE UPPER LEVELS...AN 
UPPER LEVEL RIDGE IS OVER THE W CARIBBEAN W OF 80W. FURTHER 
E...AN UPPER LEVEL LOW IS CENTERED S OF HISPANIOLA NEAR 17N72W. 
UPPER LEVEL MOISTURE IS OVER THE S CARIBBEAN S OF 13N. STRONG 
SUBSIDENCE IS OVER THE REMAINDER OF THE CARIBBEAN. EXPECT LITTLE 
CHANGE OVER THE NEXT 24 HOURS. 

ATLANTIC OCEAN...
A NEARLY STATIONARY 1024 MB HIGH IS CENTERED OVER THE W ATLANTIC 
NEAR 30N67W PRODUCING FAIR WEATHER. A COLD FRONT IS OVER THE  
CENTRAL ATLANTIC FROM 32N34W TO 27N40W 26N52W. SCATTERED SHOWERS 
ARE WITHIN 30 NM OF THE FRONT. FURTHER E...A DISSIPATING 
STATIONARY FRONT EXTENDS FROM 31N32W TO 23N40W 19N53W. SCATTERED 
SHOWERS ARE ALSO WITHIN 30 NM OF THIS FRONT. IN THE UPPER 
LEVELS...AN UPPER LEVEL RIDGE IS OVER THE W ATLANTIC N OF 24N W 
OF 60W. AN UPPER LEVEL TROUGH IS N OF 20N BETWEEN 40W-60W. AN 
UPPER LEVEL RIDGE IS N OF 20N E OF 40W. AN UPPER LEVEL HIGH IS 
OVER THE TROPICAL E ATLANTIC NEAR 9N30W. EXPECT...BOTH FRONTS TO 
MOVE SLOWLY E OVER THE NEXT 24 HOURS WITH SHOWERS. 

FOR ADDITIONAL INFORMATION PLEASE VISIT 
HTTP://WWW.HURRICANES.GOV/MARINE

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FORMOSA