000 AXNT20 KNHC 260605 TWDAT AXNT20 KNHC DDHHMM TWDAT TROPICAL WEATHER DISCUSSION NWS NATIONAL HURRICANE CENTER MIAMI FL 205 AM EDT FRI APR 26 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 0000 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 0515 UTC. ...THE ITCZ/THE MONSOON TROUGH... THE MONSOON TROUGH PASSES THROUGH COASTAL GUINEA NEAR 10N14W TO 7N16W AND 4N22W. THE ITCZ CONTINUES FROM 4N22W TO 1N30W...CROSSING THE ITCZ ALONG 33W... TO 2S36W...TO THE BRAZIL COAST NEAR 3S42W. CONVECTIVE PRECIPITATION...NUMEROUS STRONG FROM 1N TO 3N BETWEEN 6W AND 8W...FROM 1S TO THE EQUATOR BETWEEN 3W AND 6W...AND TO THE SOUTH OF THE EQUATOR BETWEEN 47W AND 50W IN THE BRAZIL COASTAL WATERS. WIDELY SCATTERED MODERATE TO ISOLATED STRONG TO THE SOUTH OF 7N TO THE EAST OF 30W. ISOLATED MODERATE ELSEWHERE TO THE SOUTH OF 3N43W 8N48W 11N57W 11N60W. ...DISCUSSION... THE GULF OF MEXICO... A MIDDLE LEVEL TO UPPER LEVEL RIDGE EXTENDS FROM 14N96W IN THE EASTERN PACIFIC OCEAN TO THE SOUTH OF THE GULF OF TEHUANTEPEC OF SOUTHERN MEXICO... INTO THE WEST CENTRAL GULF OF MEXICO...AND BEYOND THE MIDDLE TEXAS GULF COAST. BROAD ANTICYCLONIC WIND FLOW COVERS MEXICO...THE GULF OF MEXICO... AND CENTRAL AMERICA FROM NICARAGUA NORTHWARD. MIDDLE LEVEL TO UPPER LEVEL MOISTURE COVERS MUCH OF THE GULF OF MEXICO...EXCEPT TO THE SOUTH OF 26N TO THE EAST OF 85W. A MIDDLE LEVEL TO UPPER LEVEL TROUGH REACHES CENTRAL GEORGIA. THE TROUGH SUPPORTS A DISSIPATING STATIONARY FRONT THAT CUTS ACROSS NORTHEASTERN FLORIDA...INTO THE NORTH CENTRAL GULF OF MEXICO... TO A 1019 MB LOW PRESSURE CENTER THAT IS JUST OFF THE COAST OF THE DEEP SOUTH OF TEXAS NEAR 26N96W... THE DISSIPATING STATIONARY FRONT CONTINUES FROM THE LOW CENTER TO THE SOUTHWESTERN CORNER OF THE GULF OF MEXICO NEAR 20N96W. LOW CLOUD CEILINGS AND POSSIBLE PRECIPITATION ARE TO THE NORTH OF 26N TO THE WEST OF 90W...AND TO THE SOUTH OF 26N TO THE WEST OF 93W. LOW CLOUD CEILINGS AND SOME VISIBILITIES AT ONE MILE OR LESS ARE IN THE DEEP SOUTH OF TEXAS. SOME PRECIPITATION HAS BEEN IN THE MIDDLE TEXAS COASTAL PLAINS AREA DURING THE LAST FEW HOURS. THE LOUISIANA COASTAL AREAS ARE REPORTING A MIXTURE OF SOME AREAS WITH LOW CLOUD CEILINGS AND OTHER PLACES WITH FAIR SKIES AT OR LOWER THAN 12000 FEET. THE OBSERVATIONS FOR THE REST OF THE AREAS THAT ARE TO THE EAST OF LOUISIANA SHOW FAIR SKIES AT OR LOWER THAN 12000 FEET. FOR THE OFFSHORE OIL PLATFORM SITES THAT ARE TO THE NORTH OF 27N TO THE WEST OF 88W... ICAO STATION KGUL IS REPORTING A VISIBILITY OF LESS THAN 1 MILE WITH FOG. A LOW LEVEL CLOUD CEILING IS AT THE ICAO STATIONS KGVX...KGBK... KHQI...KGUL...KVBS...KEIR...KSPR...AND KMYT. THE OBSERVATIONS FROM THE ICAO STATION KIPN HAS BEEN ALTERNATING BETWEEN A LOW CLOUD CEILING AND THEN SCATTERED LOW CLOUDS. FROM THE ATLANTIC OCEAN INTO THE CARIBBEAN SEA... A MIDDLE LEVEL TO UPPER LEVEL TROUGH PASSES THROUGH THE ATLANTIC OCEAN NEAR 32N60W TO 25N60W...TO 19N62W...TO 15N65W IN THE CARIBBEAN SEA...TO ITS BASE NEAR ISLA LA ORCHILA OF VENEZUELA. RAINSHOWERS ARE POSSIBLE IN THE ATLANTIC OCEAN FROM 18N TO 26N BETWEEN 55W AND 66W...AND IN THE CARIBBEAN SEA TO THE SOUTH OF 19N TO THE EAST OF 70W. A SURFACE TROUGH IS ALONG 29N66W 25N66W 21N65W. THE REST OF THE CARIBBEAN SEA... MIDDLE LEVEL TO UPPER LEVEL NORTHWESTERLY WIND FLOW MOVES FROM THE GULF OF MEXICO... INTO AND ACROSS THE CARIBBEAN SEA. THE WIND FLOW EVENTUALLY MERGES WITH THE 19N62W 15N65W TO ISLA LA ORCHILA TROUGH. SOME MIDDLE LEVEL NORTHEASTERLY WIND FLOW IS TO THE SOUTH OF 20N TO THE WEST OF 73W. BROAD UPPER LEVEL SOUTHWESTERLY WIND FLOW THAT ORIGINATES IN SOUTH AMERICA...IS TO THE SOUTH OF 14N TO THE EAST OF 65W. RAINSHOWERS ALSO ARE POSSIBLE TO THE NORTH OF THE LINE THAT RUNS FROM 16N70W 16N77W 12N83W. THE MONSOON TROUGH IS ALONG 9N75W IN COLOMBIA TO COASTAL COLOMBIA NEAR 6N77W...BEYOND 3N82W IN THE EASTERN PACIFIC OCEAN. CONVECTIVE PRECIPITATION...NUMEROUS STRONG IN COLOMBIA WITHIN A 60 NM RADIUS OF 6N77W...AND FROM 8N TO 9N BETWEEN 73W AND 75W. PLEASE READ THE HIGH SEAS FORECAST...MIAHSFAT2... AND THE OFFSHORE FORECAST...MIAOFFNT3...FOR MORE DETAILS ABOUT THE 6 HOUR FORECAST FOR 20 TO 25 KNOT WINDS AND SEA HEIGHTS REACHING 8 FEET WITHIN 90 NM OF THE COLOMBIA COAST. THESE CONDITIONS ARE FORECAST TO CONTINUE FOR THE NEXT 48 HOURS OR SO. THE REST OF THE ATLANTIC OCEAN... A MIDDLE LEVEL TO UPPER LEVEL CYCLONIC CIRCULATION CENTER IS NEAR 34N32W. CYCLONIC WIND FLOW COVERS THE ATLANTIC OCEAN TO THE NORTH OF 20N BETWEEN 20W AND 50W. A DISSIPATING COLD FRONT IS ALONG 31N22W 25N25W 21N30W. A SURFACE TROUGH CONTINUES FROM 21N30W TO 18N40W. A SECOND COLD FRONT PASSES THROUGH 32N28W TO 29N30W AND 27N36W. A SURFACE TROUGH CONTINUES FROM 27N36W TO 26N40W AND 29N46W. RAINSHOWERS ARE POSSIBLE TO THE NORTHWEST AND NORTH OF THE LINE THAT PASSES THROUGH 32N21W 20N30W 16N46W 16N60W 25N68W BEYOND 32N71W A SURFACE RIDGE PASSES THROUGH 32N55W TO 27N53W TO 22N49W. PLEASE READ THE HIGH SEAS FORECAST... MIAHSFAT2...FOR MORE DETAILS ABOUT THE NORTH TO NORTHEAST 20 TO 25 KNOT WINDS AND 18 TO 21 FOOT SEA HEIGHTS TO THE NORTH OF 31N48W 29N46W 28N43W 28N37W. EXPECT 20 KNOT WINDS OR LESS AND 12 TO 18 FOOT SEA HEIGHTS ELSEWHERE TO THE EAST OF 31N54W 27N51W 23N48W 21N42W. EXPECT ALSO 20 KNOT WINDS OR LESS AND 8 TO 12 FOOT SEA HEIGHTS FOR THE REMAINDER OF THE AREA THAT IS TO THE NORTHEAST OF 31N64W 29N64W 21N55W 18N47W 20N35W. FOR ADDITIONAL INFORMATION PLEASE VISIT HTTP://WWW.HURRICANES.GOV/MARINE $$ MT