000 AGXX40 KNHC 180641 MIMATS MARINE WEATHER DISCUSSION NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 240 AM EDT FRI APR 18 2008 MARINE WEATHER DISCUSSION FOR GULF OF MEXICO...CARIBBEAN SEA AND SOUTHWEST NORTH ATLC S OF 31N W OF 55W. GULF OF MEXICO...SE RETURN FLOW WILL WEAKEN EARLY THIS MORNING IN ADVANCE OF COLD FRONT OFF TX COAST BY MID MORNING. COLD FRONT MOVES TO E GULF AND STALLS SAT NIGHT WASHING OUT SUN. RETURN FLOW SET UP ALL WATERS SUN NIGHT THROUGH TUE. SW ATLC AND TROPICAL ATLC...A FRONTAL TROUGH OVER THE E PORTION SW ATLC WILL MEANDER THROUGH THE WEEKEND BEFORE FINALLY DISSIPATING OVER THE NW WATERS OF THE TROPICAL ATLC ZONE. HIGH PRES WILL SHIFT E OFF FL COAST ALONG 29N TO NEAR 29N70W SUN NIGHT THEN SHIFT S TO NEAR 25N73W MON THROUGH WED. CARIBBEAN...NE WINDS 20-30 KT NEAR COLOMBIA THROUGH PERIOD. OTHERWISE FRESH E TRADES. WARNINGS... ATLC... NONE. CARIBBEAN... NONE. GULF OF MEXICO... NONE. .FORECASTER NELSON. TROPICAL PREDICTION CENTER.