000
AXNT20 KNHC 022346
TWDAT 

TROPICAL WEATHER DISCUSSION
NWS NATIONAL HURRICANE CENTER MIAMI FL  
805 PM EDT SAT APR 02 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 2N20W 1N30W 3S40W. WIDELY 
SCATTERED MODERATE CONVECTION IS FROM 1N-4N BETWEEN 17W-26W... 
AND FROM 1S-1N BETWEEN 39W-41W. 

...DISCUSSION...

THE GULF OF MEXICO...
AS OF 2100 UTC...A 1017 MB HIGH IS CENTERED OVER THE NE GULF OF 
MEXICO NEAR 28N87W PRODUCING FAIR WEATHER. 5-10 KT ANTICYCLONIC 
WINDS ARE OVER THE NE GULF. THE REMAINDER OF THE GULF HAS 10-15 
KT SE SURFACE WINDS. SCATTERED MODERATE CONVECTION IS NOTED OVER 
W CUBA AND THE STRAITS OF FLORIDA FROM 23N-24N BETWEEN 79W-82W. 
SIMILAR CONVECTION IS INLAND OVER MEXICO NW OF TAMPICO FROM 
22N-24N BETWEEN 98W-100W. IN THE UPPER LEVELS...ZONAL FLOW WITH 
STRONG SUBSIDENCE COVERS THE GULF. EXPECT OVER THE NEXT 24 HOURS 
FOR SCATTERED SHOWERS TO BE OVER THE S GULF S OF 23N.  

THE CARIBBEAN SEA...
SCATTERED SHOWERS WITH ISOLATED THUNDERSTORMS IS OVER N COLOMBIA 
...PANAMA... COSTA RICA... AND THE SW CARIBBEAN S OF 12N BETWEEN 
73W-84W. SIMILAR SHOWERS AND THUNDERSTORMS ARE INLAND OVER CUBA. 
SCATTERED SHOWERS ARE ALSO OVER PUERTO RICO AND HISPANIOLA FROM 
17N-20N BETWEEN 66W-74W. 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 11N67W. UPPER LEVEL MOISTURE 
WITH SCATTERED HIGH CLOUDS ARE OVER THE W CARIBBEAN W OF 75W. 
STRONG SUBSIDENCE IS OVER THE E CARIBBEAN E OF 75W. EXPECT THE 
POSSIBILITY OF SHOWERS OVER THE W CARIBBEAN W OF 75W OVER THE 
NEXT 24 HOURS.   

THE ATLANTIC OCEAN...
A COLD FRONT IS OVER THE W ATLANTIC FROM 32N56W TO 29N60W TO THE 
CENTRAL BAHAMAS NEAR 24N75W. SCATTERED SHOWERS ARE WITHIN 30 NM 
OF THE FRONT. A 1025 MB HIGH IS OVER THE CENTRAL ATLANTIC NEAR 
30N35W PRODUCING FAIR WEATHER. A SURFACE RIDGE AXIS EXTENDS SW 
FROM THE HIGH TO 24N60W. A DISSIPATING COLD FRONT IS S OF THE 
CANARY ISLANDS FROM 30N9W TO 25N20W. IN THE UPPER LEVELS...AN 
UPPER LEVEL TROUGH IS OVER THE W ATLANTIC N OF 25N W OF 55W 
SUPPORTING THE W ATLANTIC COLD FRONT. ANOTHER UPPER LEVEL TROUGH 
IS OVER THE E ATLANTIC N OF 20N E OF 30W SUPPORTING THE E 
ATLANTIC FRONT. EXPECT...THE W ATLANTIC COLD FRONT TO MOVE E TO 
32N48W IN 24 HOURS...WHILE THE OTHER FRONT DISSIPATES.      

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

$$
FORMOSA