000 AGXX40 KNHC 061920 MIMATS MARINE WEATHER DISCUSSION NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 320 PM EDT MON APR 06 2009 MARINE WEATHER DISCUSSION FOR GULF OF MEXICO...CARIBBEAN SEA AND SOUTHWEST NORTH ATLC S OF 31N W OF 55W. GULF OF MEXICO... STRONG COLD FRONT FROM TAMPA BAY TO 23N88W TO FAR WESTERN BAY OF CAMPECHE HAS INDUCED GALE FORCE WINDS S OF 25N W OF 90W ACCORDING TO THE 1200 UTC QUIKSCAT PASS. GALE WARNINGS EXPIRE LATE TONIGHT BUT VERY STRONG WINDS REMAIN ACROSS ENTIRE BASIN TILL TUE DIMINISHING FROM W TO E BY LATE TUE NIGHT AS HIGH PRES RIDGE TAKE OVER. AS RIDGE DRIFTS E...SOUTHERLY RETURN FLOW BEGINS WED AFTERNOON IN THE WESTERN GULF AND SPREADS E AS NEW COLD FRONT APPROACHES AND ENTERS NW GULF AROUND LATE FRI. HOWEVER...THE MODELS SHOW SOME VARIATION WITH THE TIMING OF THE FRONT...WITH THE GFS ONE OF THE FASTER SOLUTIONS AT THIS TIME. SW N ATLC... STRONG COLD FRONT MOVING INTO THE NW PORTION OF THE SW N ATLC ZONE LIES ALONG LINE FROM 31N80W INTO NE FL TO 28N82W. INCREASING S TO SW WINDS ARE EXPECTED TO REACH MINIMAL GALE FORCE N OF 29N THIS EVENING. GALE WILL BE SHORT AS THE COLD FRONT SUPPORT WEAKENS. STRONGER WINDS N OF THE FORECAST AREA PRODUCED LARGE LONG PERIOD SWELLS WHICH WILL MOVE SE MAINLY E OF 73W THU AND FRI. HIGH PRES BEHIND THE COLD FRONT MOVES OFF CENTRAL FL COAST WED AFTERNOON AND BUILDS TO APPROXIMATELY 1028 MB AS IT APPROACHES BERMUDA FRI. SOUTHERLY FLOW ON THE WESTERN EDGE OF THE HIGH WILL BUILD FRI/SAT AS THE NEXT COLD FRONT MOVES INTO THE SE CONUS. CARIBBEAN... THE GULF OF MEXICO COLD FRONT WILL MOVE INTO THE YUCATAN CHANNEL OVER NIGHT TONIGHT AND GRADUALLY WEAKEN AS THE NORTHERN PORTION OF THE FRONT MOVES EASTWARD TO THE MONA PASSAGE OVERNIGHT WED NIGHT WHILE THE SOUTHERN POSITION DISSIPATES OVER THE SW CARIBBEAN. AS ATLC COLD FRONT FORCES HIGH PRES RIDGE CURRENTLY ...CENTERED OVER THE SOUTHERN BAHAMAS/CUBA...EASTWARD AND THE FRONT ENTERS THE BASIN...PRES GRADIENT ACROSS CARIBBEAN SEA WEAKENS AND DIMINISHES TRADES. A NEW RIDGE BUILDS BEHIND THIS COLD FRONT AND QUICKLY MOVES EAST INTO THE SW N ATLC BY THU...ALLOWING FOR A RETURN OF EASTERLY TRADE WINDS BY THU. ATLC... .GALE WARNING N OF 29N...AMZ080. CARIBBEAN... NONE. GULF OF MEXICO... GALE WARNING S OF 25N W OF 93W...GMZ082. FORECASTER SCHAUER CLARK. TROPICAL PREDICTION CENTER.