000 AXNT20 KNHC 011713 TWDAT TROPICAL WEATHER DISCUSSION NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 205 PM EDT THU APR 01 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 1200 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 1645 UTC... ...THE ITCZ... FROM LIBERIA NEAR 5N9W TO 3N20W TO 3N30W 1N40W...CROSSING THE EQUATOR ALONG 46W...INTO NORTHEASTERN BRAZIL NEAR 2S51W. STRONG SHOWERS AND THUNDERSTORMS ARE WITHIN 15 NM TO 30 NM ON EITHER SIDE OF 4N31W 3N33W 3N36W 2N40W...AND FROM 1S TO 1N BETWEEN 46W AND 52W. ISOLATED MODERATE SHOWERS ARE ELSEWHERE TO THE SOUTH OF 8N TO THE EAST OF 25W. ...DISCUSSION... THE GULF OF MEXICO... AN UPPER LEVEL TROUGH PASSES THROUGH THE ATLANTIC OCEAN NEAR 26N78W IN THE NORTHERN BAHAMAS TO 25N84W 24N90W 23N94W 21N97W. BROAD SURFACE HIGH PRESSURE COVERS THE AREA. SURFACE ANTICYCLONIC FLOW MOVES AROUND A 1022 MB HIGH PRESSURE CENTER THAT IS JUST TO THE NORTHEAST OF TAMPA FLORIDA. UPPER LEVEL ANTICYCLONIC FLOW COVERS THE AREA TO THE NORTH OF 26N TO THE EAST OF 92W. A CYCLONIC CIRCULATION CENTER HAS FORMED NEAR 24N87W. A TROUGH EXTENDS FROM THE 24N87W CYCLONIC CENTER... ACROSS THE YUCATAN PENINSULA AND SOUTHERN MEXICO...INTO THE EASTERN PACIFIC OCEAN NEAR 13N93W. THE NEXT COLD FRONT TO REACH THE AREA IS FORECAST TO BE IN THE WESTERN GULF OF MEXICO ON SATURDAY MORNING...BECOME STATIONARY...AND THEN MOVE WESTWARD. THE CARIBBEAN SEA... THE SOUTHERN END OF A REMNANT CLOUD LINE CROSSES THE NORTHERN BORDER OF HAITI AND THE DOMINICAN REPUBLIC FROM 21N69W IN THE ATLANTIC OCEAN...TO 17N75W. POSSIBLE SHOWERS COVER ALL OF HISPANIOLA...AND WITHIN 15 NM TO 30 NM ON EITHER SIDE OF 17N BETWEEN 69W AND 72W. BROAD SURFACE CYCLONIC FLOW IN THE LOW CLOUD FIELD IS EVIDENT IN VISIBLE SATELLITE IMAGERY TO THE SOUTH OF 19N TO THE EAST OF 82W. A SURFACE TROUGH RUNS FROM 23N63W THROUGH THE WATERS THAT ARE BETWEEN PUERTO RICO AND THE VIRGIN ISLANDS TO 17N66W. CLOUDS AND POSSIBLE SHOWERS ARE FROM 20N TO 22N BETWEEN 61W AND 64W. THE ATLANTIC OCEAN... DEEP LAYER CYCLONIC FLOW COVERS THE AREA TO THE NORTH OF 24N TO THE WEST AND NORTHWEST OF THE LINE THAT PASSES THROUGH 31N56W TO 20N66W. THE TROUGH IN WATER VAPOR IMAGERY PASSES ON TOP OF BERMUDA TO 25N70W TO THE BAHAMAS NEAR 23N75W. A DISSIPATING COLD FRONT PASSES THROUGH 31N58W TO 27N60W TO 23N65W TO 21N69W. A REMNANT CLOUD LINE CONTINUES FROM 21N69W...ACROSS THE NORTHERN BORDER OF HAITI AND THE DOMINICAN REPUBLIC TO 17N75W. A SURFACE TROUGH RUNS FROM 23N63W THROUGH THE WATERS THAT ARE BETWEEN PUERTO RICO AND THE VIRGIN ISLANDS TO 17N66W. CLOUDS AND POSSIBLE SHOWERS ARE FROM 20N TO 22N BETWEEN 61W AND 64W. BROKEN TO OVERCAST MULTILAYERED CLOUDS AND POSSIBLE SHOWERS COVER ALL OF HISPANIOLA...AND IN THE ATLANTIC OCEAN WITHIN 30 NM ON EITHER SIDE OF 20N70W 24N60W. SHOWERS AND THUNDERSTORMS ARE TO THE NORTH OF 24N BETWEEN 50W AND 60W. A SURGE OF COMPARATIVELY COLDER AIR IS TO THE NORTHWEST OF THE FRONTAL BOUNDARY...PASSING THROUGH 32N63W TO 30N66W TO 30N71W. DEEP LAYER CYCLONIC FLOW COVERS THE ATLANTIC OCEAN TO THE NORTH OF 20N TO THE EAST OF 42W. A CYCLONIC CIRCULATION CENTER ON WATER VAPOR IMAGERY IS NEAR 27N33W. A 1012 MB LOW PRESSURE CENTER IS NEAR 27N38W. A SURFACE TROUGH CURVES FROM THE LOW CENTER TO 25N32W 20N39W. A REMNANT CLOUD LINE CONTINUES FROM 20N39W TO 18N46W TO 18N55W TO 17N60W. SHOWERS AND THUNDERSTORMS ARE FROM 25N TO 27N BETWEEN 29W AND 31W. SHOWERS ARE POSSIBLE ELSEWHERE TO THE NORTH OF 21N BETWEEN 20W AND 36W...AND ALONG THE REMNANT CLOUD LINE FROM 17N TO 20N BETWEEN 50W AND 60W. FOR ADDITIONAL INFORMATION PLEASE VISIT HTTP://WWW.HURRICANES.GOV/MARINE $$ MT