000 AGXX40 KNHC 161749 MIMATS MARINE WEATHER DISCUSSION NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 145 PM EDT THU OCT 16 2008 MARINE WEATHER DISCUSSION FOR GULF OF MEXICO... CARIBBEAN SEA AND SOUTHWEST NORTH ATLC S OF 31N W OF 55W. GULF OF MEXICO...A WEAK COLD FRONT IS PUSHING OFF THE TEXAS COAST THIS AFTERNOON. THE MID/UPPER LEVEL TROUGH SUPPORTING THE FRONT REMAINS WELL TO THE NORTHWEST AND IS LOW AMPLITUDE. THIS WILL RESULT IN VERY SLOW FRONTAL MOVEMENT THROUGH TONIGHT INTO THE NORTHWEST GULF. A TROUGH IS ANALYZED THROUGH THE BAY OF CAMPECHE. THE ONLY PLACE WHERE PRECIPITABLE WATER VALUES ARE HIGH IS BETWEEN THE TROUGH AND THE MEXICAN COAST...WHERE SCATTERED CONVECTION PERSISTS. SUSTAINED WINDS ARE NOT IMPRESSIVE ALONG THE MEXICAN COAST...BUT STRONG GUSTS ARE POSSIBLE IN THE CONVECTION. MEANWHILE...THE UPPER TROUGH AMPLIFIES INTO THE WEEKEND OVER THE MISSISSIPPI VALLEY...ALLOWING SURFACE HIGH PRES NOW OVER THE SE UNITED STATES TO SHIFT WEST...AND THE FRONT TO PROGRESS THROUGH THE GULF BEFORE STALLING OVER THE SOUTHERN GULF BY LATE SAT. CURRENTLY...FRESH E WINDS ARE BLOWING BETWEEN THE HIGH PRES AND THE REMNANTS OF T.D. SIXTEEN NOW OVER HONDURAS. THESE WINDS WILL DIMINISH OVER THE NEXT COUPLE OF DAYS AS THE HIGH SHIFTS EAST. WINDS WILL INCREASE OVER THE WESTERN GULF BEHIND THE FRONT. SINCE THE UPPER DYNAMICS WILL PROGRESS TO THE EAST...HIGH PRES BEHIND THE FRONT REMAINS CENTERED WELL TO THE NORTH...AND WINDS OVER THE WESTERN GULF REMAIN WELL BELOW GALE. THE WINDS OVER THE WESTERN GULF WILL DIMINISH INTO MONDAY AS THE HIGH PRES SHIFTS EASTWARD...BUT THIS ALSO RESULTS IN INCREASING EASTERLIES OVER THE SE GULF BY EARLY NEXT WEEK. CARIBBEAN...FRESH TO STRONG E WINDS WINDS ARE NOTED THIS AFTERNOON OVER THE FAR NE CARIBBEAN...BETWEEN HIGH PRES OVER THE SE UNITED STATES...AND THE REMNANTS OF T.D. SIXTEEN NOW OVER NORTHERN CENTRAL AMERICA. THESE WINDS WILL DIMINISH OVER THE NEXT 12 HOURS OR SO AS THE HIGH TO THE NORTH WEAKENS AND SHIFT EAST...AND THE REMNANT LOW WEAKENS FURTHER AND SHIFTS WEST. OVER THE FAR NORTHEAST CARIBBEAN...WINDS AND SEAS ARE DIMINISHING IN THE WAKE OF HURRICANE OMAR...THAT MOVED THROUGH THE ANEGADA PASSAGE LAST NIGHT AND IS NOW WEAKENING AS IT RAPIDLY SHIFTS TO THE NE OF THE LEEWARDS. HIGH PRES BUILDING NE OF THE BAHAMAS WILL ALLOW WINDS OVER THE EAST AND CENTRAL CARIBBEAN TO INCREASE TO 20 KT SAT INTO SUN. ATLANTIC... A WEAKENING HURRICANE OMAR IS MOVING RAPIDLY NE...TO THE NE OF THE NORTHERN LEEWARD ISLANDS. WINDS AND SEAS OVER THE WATERS NE OF THE LEEWARDS WILL GRADUALLY DIMINISH THROUGH FRI. HIGH PRES BUILDS FROM THE CENTRAL ATLC WESTWARD IN THE WAKE OF OMAR...ALLOWING TRADES TO INCREASE E OF THE LESSER ANTILLES BY LATE SAT. MODERATE TO FRESH WINDS OVER THE BAHAMAS S OF HIGH PRES OVER THE SOUTHEAST UNITED STATES WILL DIMINISH THROUGH FRI AS THE HIGH SHIFTS EAST. A COLD FRONT WILL EMERGE OFF THE SOUTHEASTERN U.S. COAST LATE SAT...FOLLOWED BY FRESH TO STRONG NORTHERLY WINDS BETWEEN FLORIDA AND BERMUDA INTO MON. WARNINGS... ATLANTIC... AMZ087 HURRICANE OMAR WARNING. CARIBBEAN... NONE. GULF OF MEXICO... NONE. FORECASTER CHRISTENSEN. TROPICAL PREDICTION CENTER.