000 AXNT20 KNHC 270615 AAA TWDAT TROPICAL WEATHER DISCUSSION...AMENDED NWS NATIONAL HURRICANE CENTER MIAMI FL 205 AM EDT WED APR 27 2011 UPDATED THE CARIBBEAN SEA INFORMATION TROPICAL WEATHER DISCUSSION FOR NORTH AMERICA...CENTRAL AMERICA...GULF OF MEXICO...CARIBBEAN SEA...NORTHERN SECTION 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 SATELLITE IMAGERY THROUGH 0515 UTC. ...THE ITCZ... FROM THE COASTAL BORDER OF GUINEA AND SIERRA LEONE NEAR 9N13W TO 3N20W...CROSSING THE EQUATOR ALONG 22W...TO 6S29W TO 1S40W... RETURNING TO THE EQUATOR ALONG 47W...INTO EXTREME NORTHEASTERN BRAZIL NEAR 51W ALONG THE EQUATOR. NUMEROUS STRONG RAINSHOWERS AND THUNDERSTORMS ARE FROM 2N TO 4N BETWEEN 3W AND 12W. SCATTERED MODERATE TO STRONG RAINSHOWERS AND THUNDERSTORMS ARE WITHIN 90 NM ON EITHER SIDE OF 6N12W 3N21W 3N27W 2N32W. DISORGANIZED ISOLATED MODERATE RAINSHOWERS TO LOCALLY STRONG THUNDERSTORMS ARE ELSEWHERE TO THE SOUTH OF 6N BETWEEN 33W AND 50W. ...DISCUSSION... THE GULF OF MEXICO... MIDDLE LEVEL TO UPPER LEVEL WESTERLY-TO-NORTHWESTERLY WIND FLOW COVERS THE AREA. THE CYCLONIC FLOW THAT WAS ASSOCIATED WITH TROUGHS 18 TO 24 HOURS AGO MOVED AWAY AND DISSIPATED. CYCLONIC FLOW REMAINS OVER LAND...FROM TEXAS TO MISSISSIPPI AND NORTHWARD. NUMEROUS STRONG RAINSHOWERS AND THUNDERSTORMS COVER EAST TEXAS...LOUISIANA AND MISSISSIPPI AND BEYOND. UPPER LEVEL MOISTURE IS MOVING FROM THE EASTERN PACIFIC OCEAN...ACROSS MEXICO TO THE SOUTH OF 20N...INTO THE SOUTHWESTERN CORNER OF THE GULF OF MEXICO TO THE SOUTH OF 23N. EARLIER PRECIPITATION IN THE SOUTHWESTERN CORNER OF THE AREA HAS DISSIPATED. THE ATLANTIC OCEAN TO THE NORTH OF 20N TO THE WEST OF 60W... BROAD UPPER LEVEL CYCLONIC FLOW SPANS THE AREA. THIS SAME CYCLONIC FLOW HAS COVERED THIS AREA FOR THE LAST 24 TO 48 HOURS. THE SURFACE TROUGH THAT HAD BEEN MOVING WESTWARD THROUGH THIS AREA FINALLY DISSIPATED. ISOLATED MODERATE RAINSHOWERS ARE WITHIN 60 TO 90 NM ON EITHER SIDE OF 22N65W 26N71W 31N75W. THE CARIBBEAN SEA... A SURFACE TROUGH IS ALONG 62W/64W FROM 15N TO THE COAST OF NORTHEASTERN VENEZUELA. THIS TROUGH IS AT THE LEADING EDGE OF BROKEN TO OVERCAST MULTILAYERED CLOUDS AND POSSIBLE PRECIPITATION THAT COVER THE AREA FROM 10N TO 17N BETWEEN 53W AND 63W. AN UPPER LEVEL TROUGH IS ALONG 65W. POSSIBLE RAINSHOWERS ARE TO THE NORTH OF 15N BETWEEN 60W AND 70W. CLOUDS AND ISOLATED MODERATE RAINSHOWERS ARE IN THE SOUTHWESTERN CORNER OF THE AREA...IN AN AREA OF SURFACE SPEED CONVERGENCE. THE REST OF THE ATLANTIC OCEAN TO THE EAST OF 60W... AN EASTERN ATLANTIC OCEAN UPPER LEVEL TROUGH THAT GOES FROM 32N23W TO 20N38W SUPPORTS A COLD FRONT THAT EXTENDS FROM A 1013 MB LOW PRESSURE CENTER THAT IS NEAR 31N27W...TO 27N30W TO 27N35W. A DISSIPATING COLD FRONT IS WITHIN 90 NM TO THE EAST AND SOUTHEAST OF THE ACTIVE COLD FRONT. ISOLATED MODERATE RAINSHOWERS ARE FROM 30N TO 31N BETWEEN 22W AND 24W. WEAK UPPER LEVEL CYCLONIC FLOW COVERS THE ATLANTIC OCEAN FROM 26N TO 33N BETWEEN 50W AND 60W. BROAD SURFACE ANTICYCLONIC WIND FLOW COVERS THE ATLANTIC OCEAN TO THE NORTH OF 8N BETWEEN 33W AND 80W. FOR ADDITIONAL INFORMATION PLEASE VISIT HTTP://WWW.HURRICANES.GOV/MARINE $$ MT