000
AXNT20 KNHC 021759
TWDAT 

TROPICAL WEATHER DISCUSSION
NWS NATIONAL HURRICANE CENTER MIAMI FL  
205 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 1200 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY
THROUGH 1715 UTC.

...THE ITCZ...

FROM SOUTHERN LIBERIA TO 2N20W 1N28W...TO THE EQUATOR ALONG 
32W...INTO NORTHEASTERN BRAZIL NEAR 4S43W. ISOLATED MODERATE 
RAINSHOWERS TO LOCALLY STRONG THUNDERSTORMS ARE TO THE SOUTH
OF 6N TO THE EAST OF 54W. THE COMPARATIVELY GREATEST
CONCENTRATION OF STRONG RAINSHOWERS AND THUNDERSTORMS COVERS
THE AREA FROM 1S TO 2N BETWEEN 48W AND 51W...IN NORTHEASTERN
BRAZIL AND NEARBY WATERS.

...DISCUSSION...

FROM THE ATLANTIC OCEAN THAT IS TO THE WEST OF 60W
INTO THE GULF OF MEXICO...
BROAD MIDDLE LEVEL TO UPPER LEVEL CYCLONIC FLOW COVERS THE
AREA THAT IS TO THE NORTH OF 25N BETWEEN 60W AND TEXAS...
FROM THE ATLANTIC OCEAN INTO THE GULF OF MEXICO.
A COLD FRONT PASSES THROUGH THE ATLANTIC OCEAN NEAR 32N60W
TO 26N70W TO 25N74W. THE COLD FRONT DISSIPATES FROM 25N74W...
ACROSS THE BAHAMAS...TO CUBA NEAR 22N80W. THE 24-HOUR RAINFALL
TOTAL FOR BERMUDA FOR THE PERIOD ENDING AT 02/1200 UTC IS
0.55 OF AN INCH. A SURFACE TROUGH HAS DEVELOPED ALONG AND
THROUGH 32N76W 28N80W...AS A RE-INFORCING SURGE OF 20 KT
TO 30 KT OF WINDS OFF THE COAST FROM FLORIDA TO THE CAROLINAS.
THE SURFACE PRESSURE GRADIENT IN THE GULF OF MEXICO IS 
COMPARATIVELY NOT THAT STRONG. 

THE CARIBBEAN SEA...
RAINSHOWERS ARE POSSIBLE WITHIN 30 NM ON EITHER SIDE OF THE LINE 
THAT STRETCHES FROM THE PANAMA COAST NEAR 9N80W TO NORTHEASTERN 
NICARAGUA. RAINSHOWERS ARE POSSIBLE FROM 15N TO PUERTO RICO 
BETWEEN 65W AND 70W. OTHER RAINSHOWERS ARE POSSIBLE IN LINES
OF LOW CLOUDS THAT ARE MOVING WITH THE SURFACE TRADEWIND FLOW. 
BROAD UPPER LEVEL ANTICYCLONIC WIND FLOW COVERS THE AREA IN 
GENERAL.

THE ATLANTIC OCEAN THAT IS TO THE EAST OF 60W...
A MIDDLE LEVEL TO UPPER LEVEL TROUGH PASSES THROUGH 36N15W
TO 32N19W TO 27N26W. THIS TROUGH SUPPORTS THE COLD FRONT
THAT PASSES THROUGH 32N12W TO THE CANARY ISLANDS TO 25N24W.
RAINSHOWERS ARE POSSIBLE WITHIN 30 NM ON EITHER SIDE OF
24N31W 25N23W 26N20W...AND TO THE NORTH OF 26N BETWEEN AFRICA
AND 20W. SURFACE ANTICYCLONIC WIND FLOW MOVES AROUND A RIDGE
THAT EXTENDS FROM 30N23W TO A 1027 MB HIGH PRESSURE CENTER
THAT IS NEAR 29N35W...TO 27N48W 24N61W AND 23N72W.

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

$$
MT