000
AXNT20 KNHC 140605
TWDAT 

TROPICAL WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL  
205 AM EDT WED APR 14 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 0000 UTC SURFACE ANALYSIS AND GOES-12 SATELLITE IMAGERY 
THROUGH 0315 UTC...AND METEOSAT-7 IMAGERY THROUGH 0515 UTC. 

...THE ITCZ...
FROM COASTAL LIBERIA NEAR 8N12W TO 3N20W 2N30W 2N40W...INTO 
NORTHEASTERN COASTAL BRAZIL NEAR THE EQUATOR ALONG 51W.
ISOLATED MODERATE SHOWERS TO LOCALLY STRONG THUNDERSTORMS ARE 
FROM THE EQUATOR TO 6N TO THE EAST OF 28W...FROM 3N TO 5N 
BETWEEN 28W AND 40W...AND TO THE SOUTH OF 8N TO THE WEST OF 40W.

THE GULF OF MEXICO...
UPPER LEVEL WESTERLY WIND FLOW MOVES FROM THE EASTERN PACIFIC 
OCEAN ACROSS MEXICO TO EASTERN MEXICO. A MIDDLE LEVEL TO UPPER 
LEVEL TROUGH HUGS THE GULF OF MEXICO COAST OF MEXICO...FROM WEST 
TEXAS/THE TEXAS BIG BEND INTO THE SOUTHWESTERN CORNER OF THE 
GULF OF MEXICO TOWARD THE CITY OF CAMPECHE IN MEXICO. UPPER 
LEVEL ANTICYCLONIC FLOW WITH A RIDGE COVERS THE REST OF THE 
AREA. SHOWERS AND POSSIBLE THUNDERSTORMS ARE IN MEXICO FROM
24N TO 28N BETWEEN 99W AND 102W...FROM 26N TO 31N BETWEEN 105W
AND 107W...AND IN THE ISTHMUS OF TEHUANTEPEC. BROKEN TO OVERCAST 
MULTILAYERED CLOUDS ARE IN THE CENTRAL AND SOUTH CENTRAL GULF OF 
MEXICO UNDER THE UPPER LEVEL RIDGE.
 
THE CARIBBEAN SEA...
ONE SURFACE TROUGH GOES FROM 20N60W TO ANTIGUA/BARBUDA TO
14N62W IN THE EASTERN CARIBBEAN SEA. BROKEN TO OVERCAST 
MULTILAYERED CLOUDS AND POSSIBLE SHOWERS COVER THE AREA FROM
15N TO 21N BETWEEN 54W AND 62W. A SECOND SURFACE TROUGH
PASSES THROUGH THE ATLANTIC OCEAN NEAR 23N69W TO 18N69W OF THE 
SOUTHEASTERN DOMINICAN REPUBLIC. BROKEN TO OVERCAST MULTILAYERED 
CLOUDS AND POSSIBLE SHOWERS COVER MOST OF THE DOMINICAN 
REPUBLIC...NORTHWARD TO 23N BETWEEN 65W AND 72W...AND INTO THE
ATLANTIC OCEAN AT LEAST FROM 20N TO 24N BETWEEN 65W AND 70W.
THE AREA FROM  THE OVERALL SURFACE PRSSURE GRADIENT IS WEAK. 
UPPER LEVEL SOUTHWESTERLY WIND FLOW COVERS THE ENTIRE AREA.
A WEAK SURFACE PRESSURE GRADIENT IS PRESENT ACROSS THE
CARIBBEAN SEA.

THE ATLANTIC OCEAN...
AN UPPER LEVEL RIDGE IS ALONG 33N56W 28N54W 18N50W. ANTICYCLONIC 
FLOW IS WITHIN 250 NM ON EITHER SIDE OF THE RIDGE. MIDDLE LEVEL 
TO UPPER LEVEL CYCLONIC FLOW IS TO THE WEST OF THE RIDGE. THIS 
CYCLONIC FLOW SUPPORTS A COLD FRONT THAT STILL IS WELL TO THE 
NORTH OF THE AREA ALONG 34N BETWEEN 60W AND 70W. A SURFACE
TROUGH PASSES THROUGH 32N60W TO 30N65W TO 26N69W TO THE 
SOUTHEASTERN DOMINICAN REPUBLIC. SHOWERS ARE POSSIBLE FROM THE 
DOMINICAN REPUBLIC AND PUERTO RICO NORTHWARD BEYOND 30N BETWEEN 
60W AND 70W. A 996 MB LOW PRESSURE CENTER IS NEAR 34N18W.
CYCLONIC FLOW ON WATER VAPOR IMAGERY COVERS THE AREA TO THE 
NORTH OF 13N TO THE EAST OF 50W. A SURFACE TROUGH PASSES THROUGH 
32N15W TO THE CANARY ISLANDS TO 23N19W TO 19N30W.

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

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MT