000 AGXX40 KNHC 091921 MIMATS MARINE WEATHER DISCUSSION NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 230 PM EST FRI JAN 09 2009 MARINE WEATHER DISCUSSION FOR GULF OF MEXICO... CARIBBEAN SEA AND SOUTHWEST NORTH ATLC S OF 31N W OF 55W. GULF OF MEXICO... SURFACE HIGH PRES 1022 MB OVER GEORGIA MAINTAIN MODERATE SE-S WIND FLOW ACROSS GULF WITH STRENGTHENING RETURN FLOW ALONG SE TEXAS BORDER AHEAD OF COLD FRONT DEVELOPING ACROSS MID TEXAS. COLD FRONT MOVES OFF TEXAS COAST EARLY SAT FOLLOWED BY STRONG N WINDS EXPECTED TO REACH GALE FORCE SAT NIGHT AND SUN S OF 23N W OF 95W. UPPER LEVEL SHORTWAVE RESPONSIBLE FOR FRONTOGENESIS THEN LIFTS NE ERODING ENERGY INPUT INTO FRONT AND WEAKENING IT AS BOUNDARY REACHES SE GULF. HEALTHY HIGH PRES CENTER PEAKS AT 1031 MB BEHIND COLD FRONT MID SUN THEN SHIFT NE ALLOWING MID- ATLC RIDGE TO REBUILD INTO GULF OF MEXICO WITH DIMINISHING WINDS AND SUBSIDING SEAS LATE SUN THROUGH WED. CARIBBEAN... E TRADEWIND FLOW INCREASE ACROSS CARIBBEAN THROUGH SUN AS SW N ATLC HIGH PRES JUST N OF GREATER ANTILLES BUILD BEHIND COLD FRONT. LOW PRES 1009 MB OVER COLOMBIA CONTRIBUTES IN INCREASING WIND TO 30 KT...POSSIBLE GUSTS TO GALE FORCE...AND SEAS BUILD TO 12-24 FT...ALONG COASTAL SECTIONS. STRENGTHENING RIDGE IN CENTRAL ATLC MAINTAINS STEADY E FLOW ACROSS LONG FETCH BUILDING LONG PERIOD E SWELLS TO 12 FT IN TROPICAL ATLC ZONE LATE IN FORECAST PERIOD. SW N ATLC... STALLING FRONT FROM 31N58W TO SE CUBA CLOSELY FOLLOWED BY SECOND FRONT FROM 31N62W TO 27N77W. SECOND FROM CATCHES UP WITH STALLING FRONT AND BOTH MERGE TONIGHT...SLOWLY BECOMING DIFFUSE E OF AREA SAT AND SUN. STRONG WINDS STILL LINGER N OF 28N E OF FRONT BUT PREVIOUSLY FORECAST GALE FORCE WINDS REMAINED N OF 31N. ATLC RIDGE BUILD IN WAKE OF DIFFUSING FRONTAL BOUNDARY. WINDS W OF SECOND FRONT DIMINISHING FASTER THAN GUIDANCE AND COULD PRECLUDE LINGERING SWELLS FROM AFFECTING SW N ATLC BASIN. NEXT COLD FRONT EMERGES OFF GEORGIA AND N FLORIDA COASTS SUN... BUT RIDGE REFUSES TO MOVE FORCING IT TO STALL FROM 31N653W TO WINDWARD PASSAGE AS MAIN ENERGY SUPPORT SHIFT FURTHER NE. ATLANTIC... NONE. CARIBBEAN... NONE. GULF OF MEXICO... GALE WARNING FROM 20N-23N W OF 95W SAT NIGHT AND SUN...GMZ082. FORECASTER WALLY BARNES. TROPICAL PREDICTION CENTER.