000 AGXX40 KNHC 280507 MIMATS MARINE WEATHER DISCUSSION NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 115 AM EDT SAT MAR 28 2009 MARINE WEATHER DISCUSSION FOR GULF OF MEXICO...CARIBBEAN SEA AND SOUTHWEST NORTH ATLC S OF 31N W OF 55W. GULF OF MEXICO... COLD FRONT OVER EXTREME NW COASTAL WATERS ATTM WITH WINDS FORECAST TO INCREASE TO MINIMAL GALE IN 06 HOURS WITH AREA OF GALE WINDS INCREASING TO MAX OF 40 KT...BUT SHIFTING S OVER THE GULF WATERS S OF 25N W OF FRONT IN 12 HOURS. LATEST GUIDANCE SUPPORTS THAT GALE CONDITIONS WILL CONTINUE EXTREME SW WATERS TILL OOZ SUN...WHICH IS A FEW HOURS LONGER THAN YESTERDAYS GUIDANCE. SINCE THE DURATION WAS ALREADY EXTENDED TO 00Z WILL HAVE LITTLE ADJUSTMENT TO MAKE. SLY FLOW AHEAD OF FRONT AT 20 TO 25 KT AND EXPECTED TO INCREASE TO 20 TO 30 KT EARLY THIS MORNING. LATEST GUIDANCE MOVES FRONT TO YUCATAN CHANNEL SUN NIGHT BUT IMMEDIATELY STALLS IT...THEN SUGGESTS REMNANTS WILL MOVE BACK NW OVER THE S CENTRAL WATERS MON AND TUE ACCOMPANIED BY A SLIGHT 20 KT WINDSHIFT. THIS OF LITTLE SIGNIFICANCE AS THE SE RETURN FLOW WILL BE AT 20 KT MON NIGHT AND TUE OVER MOST OF AREA W OF 85W IN ADVANCE OF NEXT FRONT MOVING OFF TX COAST TUE AFTERNOON. MODELS MORE AGGRESSIVE WITH NEXT FRONT AND NOW MOVE IT TO POSITION DISSECTING ENTIRE GULF NE TO SW LATE WED WHERE IT BECOMES STATIONARY. ATLC WATERS... HIGH PRES CENTER S OF BERMUDA WITH RIDGE W ALONG 27.5N ACROSS FLORIDA. THE SLY FLOW N OF RIDGE W OF 75W IS AT 20 TO 25 KT ATTM. EXPECT THIS SLY FLOW TO INCREASE TO 20 TO 30 KT JUST AHEAD OF FRONT MOVING OFF GEORGIA COAST LATE TONIGHT. WINDS W OF FRONT WILL NOT BE AS STRONG AND MORE WLY THAN NW...THUS MAY ONLY SEE SEAS TO 8 FT MAINLY IN WIND WAVE BEHIND FRONT. AS FRONT ENTERS AREA THE RIDGE AXIS WILL SHIFT S TO ACROSS THE CENTRAL BAHAMAS. N SWELLS CURRENTLY OVER WATERS E OF BAHAMAS WILL SUBSIDE TO LESS THAN 8 FT BY SUNSET SUN. SLY FLOW BEGINS NW PORTION LATE TUE NIGHT WITH ANOTHER FRONT WED AFTERNOON. CARIBBEAN... MOST DATA INDICATE THAT SE WINDS OVER NW CARIBBEAN AT 20 TO 25 KT...BUT SOME SHIPS REPORTING NEAR 30 KT...SO WILL CONTINUE 20 TO 30 KT TREND TODAY AND THEN EXPECT GRADIENT TO BACK OFF TO 20 KT TONIGHT AS WINDS VEER MORE SLY IN ADVANCE OF FRONT. FRONT NOW EXPECTED TO STALL VICINITY YUCATAN CHANNEL AROUND SUNSET SUN AND MOVE BACK OVER THE GULF OF MEXICO TUE AS SE WINDS RESUME AT 15 KT NW WATERS. THE GRADIENT REMAINDER OF CARIBBEAN ALSO EXPECTED TO GRADUALLY DIMINISH TO MOSTLY 15 KT SUN NIGHT THROUGH WED. NE WINDS TO 20 KT CONTINUE OVER TROPICAL ATLC WITH N AND NE SWELLS TO 10 FT THROUGH SAT NIGHT...THEN GRADUALLY DIMINISH TO LESS THAN 20 KT SEAS LESS THAN 8 FT BY MID WEEK. ATLANTIC... NONE. CARIBBEAN... NONE. GULF OF MEXICO... GMZ080 AND GMZ082...GALE WARNING ENDING SUNSET TODAY. FORECASTER NELSON. TROPICAL PREDICTION CENTER.