000
AXNT20 KNHC 032324
TWDAT 

TROPICAL WEATHER DISCUSSION
NWS NATIONAL HURRICANE CENTER MIAMI FL  
805 PM EDT SUN APR 03 2011

TROPICAL WEATHER DISCUSSION FOR NORTH AMERICA...CENTRAL 
AMERICA...GULF OF MEXICO...CARIBBEAN SEA...NORTHERN SECTION 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.

...THE ITCZ...

THE ITCZ AXIS IS CENTERED ALONG 5N9W 1N20W EQ35W 2S45W. WIDELY 
SCATTERED MODERATE CONVECTION IS S OF LIBERIA FROM 1N-5N BETWEEN 
7W-13W. ISOLATED MODERATE CONVECTION IS OFF THE COAST OF BRAZIL 
FROM 1N-4N BETWEEN 36W-52W. 

...DISCUSSION...

GULF OF MEXICO...
A 1022 MB HIGH IS CENTERED OVER THE W ATLANTIC NEAR 31N75W 
PRODUCING 10-15 KT SE RETURN FLOW AND FAIR WEATHER OVER THE GULF 
OF MEXICO. ISOLATED MODERATE CONVECTION IS INLAND OVER MEXICO 
NEAR VERACRUZ FROM 17N-21N BETWEEN 96W-98W. IN THE UPPER 
LEVELS...ZONAL FLOW WITH STRONG SUBSIDENCE COVERS THE GULF. 
EXPECT IN 24 HOURS FOR A COLD FRONT TO BE JUST INLAND OVER TEXAS 
WITH CONVECTION...MOVING SE INTO THE GULF. ALSO EXPECT CONTINUED 
SE RETURN FLOW AND FAIR WEATHER OVER THE GULF UNTIL THE FRONT 
ENTERS THE GULF.  

CARIBBEAN SEA...
SCATTERED SHOWERS WITH ISOLATED THUNDERSTORMS IS OVER N COLOMBIA 
...PANAMA...AND COSTA RICA. SIMILAR SHOWERS AND THUNDERSTORMS 
ARE INLAND OVER THE HIGHER ELEVATIONS OF PUERTO RICO... 
HISPANIOLA...AND CUBA. 15-25 KT TRADEWINDS ARE OVER THE ENTIRE 
CARIBBEAN AND CENTRAL AMERICA WITH STRONGEST WINDS ALONG THE 
COAST OF N COLOMBIA. IN THE UPPER LEVELS...AN UPPER LEVEL HIGH 
IS CENTERED OVER N VENEZUELA NEAR 12N65W. UPPER LEVEL MOISTURE 
WITH SCATTERED HIGH CLOUDS ARE OVER THE NW AND CENTRAL 
CARIBBEAN. STRONG SUBSIDENCE IS OVER THE REMAINDER OF CARIBBEAN 
AND CENTRAL AMERICA. EXPECT THE POSSIBILITY OF SHOWERS OVER THE 
W CARIBBEAN W OF 75W OVER THE NEXT 24 HOURS.   

ATLANTIC OCEAN...
A 1022 MB HIGH IS CENTERED OVER THE W ATLANTIC NEAR 31N75W 
PRODUCING FAIR WEATHER. A COLD FRONT IS OVER THE CENTRAL  
ATLANTIC FROM 32N50W TO 27N60W TO THE S BAHAMAS NEAR 23N70W. 
SCATTERED SHOWERS ARE WITHIN 30 NM OF THE FRONT. A REINFORCING 
COLD FRONT IS JUST W ALONG 32N55W 27N68W MOVING SE. A 1025 MB 
HIGH IS OVER THE E ATLANTIC NEAR 31N25W PRODUCING FAIR WEATHER. 
A SURFACE RIDGE AXIS EXTENDS SW FROM THE HIGH TO 25N54W. A 1004 
MB LOW IS CENTERED INLAND OVER W ALGERIA NEAR 27N7W. A TIGHT 
SURFACE GRADIENT EXISTS BETWEEN THE E ATLANTIC HIGH AND THIS LOW 
RESULTING IN 25-30 KT NE WINDS OVER THE CANARY ISLANDS AND 
SURROUNDING WATERS. EXPECT OVER THE NEXT 24 HOURS FOR...THE TWO 
ATLANTIC FRONTS TO MERGE AND MOVE E WITH SHOWERS.

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

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FORMOSA