000
AXNT20 KNHC 111122
TWDAT 

TROPICAL WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL  
705 AM EST THU FEB 11 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 0600 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY
THROUGH 1115 UTC.

...THE ITCZ...

FROM THE BORDER OF SIERRA LEONE AND LIBERIA NEAR 7N11W TO 4N20W
TO 2N30W 1N40W...INTO COASTAL NORTHEASTERN BRAZIL NEAR 1S49W.
SHOWERS ARE FROM 2N TO 6N BETWEEN 8W AND 27W.

...DISCUSSION...

THE GULF OF MEXICO...
BROAD UPPER LEVEL ANTICYCLONIC FLOW COVERS THE AREA. HIGH LEVEL 
MOISTURE IS TO THE NORTH OF THE LINE FROM SOUTH FLORIDA TO THE 
NORTHWESTERN CORNER OF THE YUCATAN PENINSULA OF MEXICO...TO THE
NORTHERN ISTHMUS OF TEHUANTEPEC OF MEXICO. BROAD SURFACE ANTICYCLONIC
FLOW IS AROUND AN INDISTINCT RIDGE FROM FROM LOUISIANA TO THE YUCATAN 
CHANNEL. A SURFACE TROUGH HUGS THE COASTAL WATERS FROM THE NORTHERN 
ISTHMUS OF OF TEHUANTEPEC TO 22N97W TO THE BORDER OF TEXAS AND MEXICO 
NEAR 26N98W.

THE CARIBBEAN SEA...
CLOUDS AND POSSIBLE SHOWERS ARE IN THE NORTHWESTERN CORNER OF THE 
AREA...WITHIN 90 NM ON EITHER SIDE OF THE LINE THAT PASSES THROUGH THE 
WINDWARD PASSAGE 19N80W AND 18N88W IN NORTHERN COASTAL BELIZE. THE 
CLOUDS AND POSSIBLE PRECIPITATION ARE ASSOCIATED WITH THE CURRENT COLD 
FRONT THAT IS MOVING THROUGH THE AREA FROM THE ATLANTIC OCEAN INTO THE 
NORTHWESTERN CARIBBEAN SEA.
 
THE ATLANTIC OCEAN.
A WESTERN ATLANTIC OCEAN-T0-NORTHWESTERN CARIBBEAN SEA COLD FRONT IS 
SUPPORTED BY A CYCLONIC CIRCULATION CENTER THAT IS NEAR 37N69W. THE 
COLD FRONT GOES FROM 31N57W TO 27N60W TO 22N70W...BEYOND THE WINDWARD 
PASSAGE INTO THE NORTHWESTERN CARIBBEAN SEA. CLOUDS AND POSSIBLE 
SHOWERS ARE WITHIN 90 NM ON EITHER SIDE OF 30N52W 25N62W 21N70W...
THROUGH THE MONA PASSAGE TO 19N77W AND BEYOND. A MIDDLE LEVEL TO 
UPPER LEVEL EAST CENTRAL ATLANTIC OCEAN TROUGH PASSES THROUGH 32N39W TO 
23N42W. THIS TROUGH SUPPORTS THE COLD FRONT THAT PASSES THROUGH 32N30W 
TO 26N38W TO 19N50W. LITTLE TO NO PRECIPITATION ACCOMPANIES THIS FRONT 
AND TROUGH.

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

$$
MT