000 AXNT20 KNHC 271120 TWDAT TROPICAL WEATHER DISCUSSION NWS NATIONAL HURRICANE CENTER MIAMI FL 805 AM EDT WED MAR 27 2013 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...WEATHER OBSERVATIONS...RADAR...AND METEOROLOGICAL ANALYSIS. BASED ON 0600 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 1045 UTC. ...THE ITCZ/THE MONSOON TROUGH... THE MONSOON TROUGH PASSES THROUGH COASTAL GUINEA NEAR 11N14W TO 4N20W 2N24W AND 2N28W. CONVECTIVE PRECIPITATION...NUMEROUS STRONG BETWEEN 7W AND 11W. SCATTERED MODERATE TO STRONG TO THE SOUTH OF 6N BETWEEN 18W AND 27W...AND FROM THE EQUATOR TO 4S BETWEEN 24W AND 30W. ISOLATED MODERATE ELSEWHERE TO THE SOUTH OF 3N. ...DISCUSSION... FROM THE WESTERN ATLANTIC OCEAN INTO THE BAHAMAS... AND THE NORTHWESTERN CORNER OF THE CARIBBEAN SEA... A MIDDLE LEVEL TO UPPER LEVEL CYCLONIC CIRCULATION CENTER IS WELL TO THE NORTH OF THE AREA. THIS FEATURE SUPPORTS THE COLD FRONT THAT PASSES THROUGH 32N51W TO 28N60W 25N67W...ACROSS THE SOUTHEASTERN BAHAMAS AND THROUGH THE WINDWARD PASSAGE...ACROSS NORTHWESTERN COASTAL JAMAICA...TO 18N82W IN THE NORTHWESTERN CORNER OF THE CARIBBEAN SEA...AND FROM NORTHEASTERN COASTAL HONDURAS TO WESTERN HONDURAS. BROKEN TO OVERCAST MULTILAYERED CLOUDS AND POSSIBLE RAINSHOWERS ARE TO THE NORTH OF 29N BETWEEN 25W AND 50W...AND THEN TO THE NORTH OF 29N50W 26N60W...TO NORTHERN HAITI...AND TO THE NORTH OF 15N TO THE WEST OF 80W IN THE CARIBBEAN SEA. THE GULF OF MEXICO... MIDDLE LEVEL TO UPPER LEVEL SOUTHWESTERLY WIND FLOW...THAT IS MOVING FAR AWAY FROM THE PERIPHERY OF THE ATLANTIC CYCLONIC CIRCULATION CENTER THAT SUPPORTS THE ATLANTIC OCEAN-TO-CARIBBEAN SEA COLD FRONT. A SURFACE RIDGE PASSES THROUGH LOUISIANA INTO THE NORTHWESTERN CORNER OF THE GULF OF MEXICO... INTO THE SOUTHWESTERN CORNER OF THE AREA... TO THE ISTHMUS OF TEHUANTEPEC OF SOUTHERN MEXICO. PLEASE READ THE EASTERN PACIFIC OCEAN HIGH SEAS FORECAST...MIAHSFEP2...AND THE EASTERN PACIFIC OCEAN TROPICAL WEATHER DISCUSSION...MIATWDEP... FOR MORE DETAILS ABOUT THE GALE-FORCE WIND WARNING FOR THE GULF OF TEHUANTEPEC...ON THE EASTERN PACIFIC OCEAN SIDE OF SOUTHERN MEXICO. FOR THE OFFSHORE OIL PLATFORMS THAT ARE TO THE NORTH OF 27N TO THE WEST OF 88W... FEW TO SCATTERED LOW CLOUDS ARE BEING OBSERVED AT THE FOLLOWING ICAO STATIONS...KGVX ALONG THE TEXAS GULF COAST...KGBK OFF THE SOUTH CENTRAL LOUISIANA COAST...KHQI OFF THE SOUTHWESTERN COAST OF LOUISIANA...KMYT AND KMDJ OFF THE SOUTHEASTERN LOUISIANA COAST. THE OTHER STATIONS ARE REPORTING CLEAR SKIES. NO STATION IS REPORTING SUSTAINED 20 KNOT WINDS. MIDDLE LEVEL CLOUD CEILINGS ARE OBSERVED IN THE LOWER RIO GRANDE VALLEY OF TEXAS AND IN SOME OF THE MIDDLE TEXAS GULF COAST STATIONS. FAIR SKIES/CLEAR SKIES COVER THE REST OF THE GULF COAST PLAINS FROM THE MIDDLE TEXAS GULF COAST TO FLORIDA. ONLY THE KEY WEST NAVAL STATION IS OBSERVING A MIDDLE LEVEL CLOUD CEILING. PLEASE READ THE HIGH SEAS FORECAST...MIAHSFAT2... AND THE OFFSHORE FORECAST...MIAOFFNT4...FOR MORE DETAILS ABOUT THE 20 TO 25 KNOT WINDS AND 8 TO 10 FOOT SEA HEIGHTS TO THE SOUTH OF 21N BETWEEN 91W AND 95W. THE REST OF THE CARIBBEAN SEA... BROAD MIDDLE LEVEL TO UPPER LEVEL ANTICYCLONIC WIND FLOW COVERS THE CARIBBEAN SEA. RAINSHOWERS ARE POSSIBLE TO THE EAST OF 68W... IN LOW CLOUDS THAT ARE MOVING ACROSS THE AREA WITH THE SURFACE TRADEWIND FLOW. NUMEROUS STRONG CONVECTIVE PRECIPITATION IS FROM 7N TO 9N BETWEEN 76W AND 77W IN COLOMBIA NEAR THE BORDER WITH PANAMA. A SURFACE RIDGE EXTENDS FROM AN ATLANTIC OCEAN 1020 MB HIGH PRESSURE CENTER THAT IS NEAR 25N38W...TO 20N62W...TO THE WESTERN SECTIONS OF THE DOMINICAN REPUBLIC. PLEASE READ THE HIGH SEAS FORECAST...MIAHSFAT2.... AND THE OFFSHORE FORECAST...MIAOFFNT3...FOR MORE DETAILS ABOUT THE COLD FRONT 20N76W 16N84W. EXPECT 20 TO 25 KNOT WINDS AND 8 TO 10 FOOT SEA HEIGHTS TO THE WEST OF THE FRONT. EXPECT ALSO 20 TO 25 KNOT WINDS AND 8 FOOT SEA HEIGHTS FROM 11N TO 14N BETWEEN 70W AND 75W. THE REST OF THE ATLANTIC OCEAN... A MIDDLE LEVEL TO UPPER LEVEL ANTICYCLONIC CIRCULATION CENTER IS NEAR 18N54W. A RIDGE EXTENDS FROM THE CENTER TO 24N51W BEYOND 32N37W. A MIDDLE LEVEL TO UPPER LEVEL TROUGH PASSES THROUGH 32N16W TO 25N23W AND 18N27W. THE TROUGH SUPPORTS A COLD FRONT THAT PASSES THROUGH 32N25W TO 31N28W. BROKEN TO OVERCAST MULTILAYERED CLOUDS AND POSSIBLE RAINSHOWERS ARE WITHIN 30 TO 60 NM ON EITHER SIDE OF THE LINE THAT PASSES THROUGH 32N15W 29N21W 27N26W 27N32W. A SURFACE TROUGH IS ALONG 32N17W 29N25W 28N34W. A SURFACE TROUGH IS ALONG 31N12W...ACROSS THE WESTERN CANARY ISLANDS...TO 26N21W. RAINSHOWERS ARE POSSIBLE WITHIN 60 TO 90 NM ON EITHER SIDE OF THE LINE THAT PASSES THROUGH 32N7W 25N17W 22N28W. AN EASTERN ATLANTIC OCEAN SURFACE RIDGE PASSES THROUGH 32N8W IN MOROCCO...TO 27N14W AT THE COAST OF THE WESTERN SAHARA...TO 23N24W...TO A 1020 MB HIGH PRESSURE CENTER THAT IS NEAR 25N38W...TO 20N62W...TO THE WESTERN SECTIONS OF THE DOMINICAN REPUBLIC. PLEASE READ THE HIGH SEAS FORECAST...MIAHSFAT2... FOR MORE DETAILS ABOUT THE COLD FRONT 31N54W 20N74W. EXPECT 20 TO 25 KNOT WINDS AND 10 TO 12 FOOT SEA HEIGHTS TO THE NORTH OF 30N TO THE EAST OF THE FRONT TO 40W. EXPECT 20 TO 25 KNOT WINDS AND 9 TO 13 FOOT SEA HEIGHTS TO THE NORTH OF 27N TO THE WEST OF 69W. EXPECT 20 KNOT WINDS OR LESS AND 9 TO 15 FOOT SEA HEIGHTS ELSEWHERE TO THE NORTH OF 26N. EXPECT ALSO 20 KNOT WINDS OR LESS AND 9 FOOT SEA HEIGHTS TO THE SOUTH OF 15N TO THE EAST OF 55W. FOR ADDITIONAL INFORMATION PLEASE VISIT HTTP://WWW.HURRICANES.GOV/MARINE $$ MT