000 AGXX40 KNHC 240621 MIMATS MARINE WEATHER DISCUSSION NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 120 AM EST SAT NOV 24 2007 MARINE WEATHER DISCUSSION FOR GULF OF MEXICO...CARIBBEAN SEA AND SOUTHWEST NORTH ATLC S OF 31N W OF 55W. GULF OF MEXICO... COLD FRONT IS STALLING FROM SW FLORIDA TO THE BAY OF CAMPECHE THIS MORNING. ASCAT AND SHIP/BUOY OBSERVATIONS SHOW ELY 20 KT FLOW N OF THE BOUNDARY. SURFACE OBSERVATIONS OVER S TEXAS INDICATE A LOW MAY BE FORMING N OF THE BOUNDARY. THIS WILL DRAW THE FRONTAL BOUNDARY NWD AS A WARM FRONT TODAY AND TONIGHT ACROSS GULF. THE SURFACE LOW IS PROGGED TO LIFT OUT THROUGH LOUISIANA BY MIDDAY SUNDAY...BRINGING FRESH NLY FLOW BEHIND ANOTHER COLD FRONT OVER THE WRN GULF SUN NIGHT AND MON...AS WELL AS INCREASING THE SLY FLOW OVER THE NERN GULF THROUGH EARLY MON. STRONG NLY WINDS ARE LIKELY OFF THE MEXICAN GULF COAST SUN NIGHT AS THE FRONT MOVES THROUGH THE AREA. WINDS N OF THE FRONT WILL DIMINISH AS THE FRONT STALLS FROM AROUND TAMPA FLORIDA TO THE BAY OF CAMPECHE THROUGH TUE. MODERATE TO FRESH ELY FLOW WILL PERSIST INTO WED OVER THE SOUTHERN GULF ON THE PERIPHERY OF HIGH PRES TO THE N. ANOTHER COLD FRONT WILL ENTER THE NRN GULF WATERS ON THU. ATLANTIC WATERS... THE COLD FRONT IN THE GULF EXTENDS THROUGH S FLORIDA...THE NORTHERN BAHAMAS...TOWARD BERMUDA. THIS WILL STALL TODAY ALONG 28N OR SO...THEN BEGIN TO DISSIPATE AS HIGH PRES BUILDS TO THE N OF THE AREA. HIGH PRES CURRENTLY E OF THE FRONT WILL SHIFT FURTHER E TODAY AND LIKEWISE DISSIPATE AS THE STRONGER HIGH BUILDS TO THE N. ELY TRADES WILL INCREASE OVER MAINLY S OF 25N AS THE HIGH BUILDS TO THE N ON SUN. SLY FLOW INCREASES OFF THE NE FLORIDA COAST MON INTO TUE...AHEAD OF A COLD FRONT THAT WILL MOVE OFF THE SOUTHEAST U.S. COAST TUE AFTERNOON. THE HIGH TO THE N SHIFTS E AHEAD OF THE PARENT UPPER TROUGH MOVING THROUGH THE EASTERN U.S. THIS WILL ALLOW TRADES TO SUBSIDE THROUGH WED. MEANWHILE RESIDUAL LARGE SWELL WILL SLOWLY DECAY THROUGH SUN OVER THE WATERS MAINLY E OF 70W...TO INCLUDE THE AREA TO THE E OF THE LESSER ANTILLES. SEAS UP TO 10 FT WITH PERIODS OF 12 SECONDS ARE ONGOING FROM PUERTO RICO THROUGH THE LEEWARD ISLANDS...CREATING THE POTENTIAL FOR ROUGH SURF. SEE LATEST FORECASTS FROM THE NWS OFFICE IN SAN JUAN FOR FURTHER INFORMATION ON IMPACTS TO PUERTO RICO AND THE VIRGIN ISLANDS. SWELL WILL DECAY JUST IN TIME FOR THE TRADES AND ASSOCIATED WIND WAVES TO INCREASE HOWEVER...THUS COMBINED SEAS WILL REMAIN 8 FT OR GREATER IN ATLC WATERS FROM OFF NRN CUBA TO E OF THE WINDWARDS. CARIBBEAN... AN EARLIER ASCAT PASS SHOWED FRESH TO STRONG TRADES PERSISTING OVER MAINLY THE SOUTH CENTRAL CARIBBEAN THIS PAST EVENING. EXPECT TRADES TO INCREASE SLIGHTLY IN INTENSITY AND COVERAGE TONIGHT THROUGH MON IN RESPONSE TO 1030 MB HIGH PRES BUILDING OFF THE U.S. EAST COAST...FOR ALL BUT THE FAR WESTERN CARIBBEAN FROM THE NICARAGUAN COAST TO THE GULF OF HONDURAS. ASSOCIATED ELY SWELL INCREASES SEAS TO 10 TO 15 FT BETWEEN COLOMBIA AND JAMAICA BY MON. FOR TODAY AND SUN...LARGE NLY ATLC SWELL WITH 12 SECOND PERIODS WILL CONTINUE TO PENETRATE THROUGH THE MONA AND ANEGADA PASSAGES INTO THE NE CARIBBEAN. WINDS AND SEAS WILL START TO GRADUALLY SUBSIDE ON TUE AS THE HIGH PRES WEAKENS TO THE N OF THE AREA...ALTHOUGH AT LEAST FRESH TRADES WILL LIKELY PERSIST OVER THE CENTRAL CARIBBEAN THROUGH THE WEEK. WARNINGS... ATLANTIC... NONE. CARIBBEAN... NONE. GULF OF MEXICO... NONE. FORECASTER CHRISTENSEN