000 AGXX40 KNHC 201825 MIMATS MARINE WEATHER DISCUSSION NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 130 PM EST TUE JAN 20 2009 MARINE WEATHER DISCUSSION FOR GULF OF MEXICO... CARIBBEAN SEA AND SOUTHWEST NORTH ATLC S OF 31N W OF 55W. GULF OF MEXICO...A FAST MOVING COLD FRONT OVER THE SE WATERS WILL MOVE S OF AREA AROUND LATE THIS AFTERNOON. CURRENTLY W-NW WINDS AT 20-25 KT WITH THE 30 KT...AND 34 KT...REPORTS ENDING AROUND SUNRISE THIS MORNING. MAX SEAS ESTIMATED AT 14 FT...HOWEVER THERE WAS A 16 FT REPORT. ANYWAY WILL BRING DOWN WINDS PER GFS...BUT WILL SUBSIDE SEAS LITTLE FASTER THAT NWW3. STILL THINK SLY WINDS WILL INCREASE TO 20 KT NW PART THU NIGHT. CURRENT GUIDANCE NOW SUGGESTS NEXT FRONT ALONG TX COAST AT SUNRISE SAT...NOT MIDDAY SAT AS YESTERDAYS GUIDANCE SUGGESTED. SO MAY ADJUST THIS TIMING EVEN MORE ON THIS AFTERNOONS PACKAGE...EXPECT SOME FLUCTUATIONS IN STRENGTH OF WEEKEND FRONT AS WELL. ATLC...STILL EVIDENCE OF A FRONTAL TROUGH EXTENDING NE FROM WINDWARD PASSAGE AND THE INITIAL COLD FRONT EXTENDING NE FROM CENTRAL BAHAMAS. BUT FOR SIMPLICITY...IN TEXT PRODUCTS I FOCUSED MAINLY ON THE STRONG COLD FRONT CURRENTLY RACING THROUGH THE NW BAHAMAS THAT WILL OVERRUN BOTH OF THESE BOUNDARIES BEFORE LOSING ITS PUSH AND STALLING OVER THE SE WATERS THU INTO FRI. A RIDGE WILL BUILD E OFF FL COAST ALONG 28N THU THROUGH SUN AS THE PARENT HIGH SHIFTS E ALONG THE RIDGE AXIS...LYING JUST SW OF BERMUDA SUN. A COLD FRONT EXPECTED OVER THE EXTREME NW WATERS SUN. CARIBBEAN...THE LOW LEVEL TROUGH STILL EVIDENT FROM WINDWARD PASSAGE TO PANAMA THIS MORNING AND A WEAK COLD FRONT ALSO EVIDENT MOVING THROUGH THE CAYMANS. AGAIN I WILL FOCUS ON THE STRONG FRONT THAT WILL MOVE SE THROUGH THE YUCATAN CHANNEL AROUND SUNSET TODAY THAT WILL OVERRUN THE CURRENT NW CARIBBEAN FRONT AND EVENTUALLY THE TROUGH. NW-N WINDS WILL INCREASE TO 20 KT BEHIND FRONT WITH A FEW AREAS OF 25 KT...BUT EXPECT SEAS TO MAX AROUND 9 FT. GRADIENT ALONG COAST OF COLOMBIA WILL RETURN NE WINDS TO 20 KT AS EARLY AS TONIGHT. SEEMS THE E SWELLS TO 10 FT WILL CONTINUE TO PROPAGATE THROUGH THE E CARIBBEAN PASSAGES SUBSIDING TO 8 FT SUN. ATLANTIC... AMZ080...GALE WARNING. CARIBBEAN... NONE. GULF OF MEXICO... NONE. FORECASTER NELSON. TROPICAL PREDICTION CENTER.