000 AGXX40 KNHC 130705 MIMATS MARINE WEATHER DISCUSSION NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 205 AM EST SAT MAR 13 2010 MARINE WEATHER DISCUSSION FOR GULF OF MEXICO...CARIBBEAN SEA AND SOUTHWEST NORTH ATLC S OF 31N W OF 55W GULF OF MEXICO... A COLD FRONT IS MOVING THROUGH THE FAR E FL STRAITS ATTM. A HIGH PRES CENTER WILL DEVELOP OVER SW GULF TODAY AND SHIFT N ALONG ABOUT 92W TONIGHT INTO SUN WITH A RIDGE THEN EXTENDING FROM SW LA TO NW CUBA MON THROUGH WED. NLY WINDS ARE STILL EXPECTED TO INCREASE OVER THE W GULF MON NIGHT AND SPREAD E ACROSS ALL WATERS THROUGH WED. A SECOND COLD FRONT WILL SWEEP E ACROSS THE NORTHERN WATERS EARLY TODAY AND MOVE OVER W FL AROUND SUNRISE SUN WITH A REINFORCING 20 TO 25 KT W TO NW FLOW. TROPICAL ATLC AND CARIBBEAN SEA... THE PERSISTENT BROAD FRONTAL TROUGH STILL EXTENDS ACROSS TROPICAL ATLC WATERS FROM 16N55W TO NEAR 15N61W WITH SOME EVIDENCE OF ENHANCED LOW CLOUDS W TO HISPANIOLA...MAYBE IS WILL LOSE ALL IDENTITY BY THE END OF THE WEEKEND. A PRE FRONTAL TROUGH IS OVER THE NW CARIBBEAN WITH THE REINFORCING FRONT OVER THE YUCATAN CHANNEL. EXPECT FRONT TO STALL FROM THE WINDWARD PASSAGE TO HONDURAS SUN. AFTER THAT THE SW EXTENSION OF FRONT WILL MOVE NW SUN NIGHT INTO MON WHILE THE SEGMENT N OF CARIBBEAN MOVES INTO TROPICAL WATERS NEAR 22N65W LATE THEN MON DISSECTING THE TROPICAL ATLC ZONE FROM 22N55W TO N LEEWARDS WED. SW N ATLC... HIGH PRES CENTER CURRENTLY OVER THE CENTRAL ATLC. A WEAK COLD HAS DIPPED INTO THE NW WATERS N OF 29N ALONG 77W WHILE THE STRONG COLD FRONT IS JUST ABOUT TO MOVE OFF THE SE GA AND NE FL COASTS. SLY FLOW IS INCREASING WITH A GALE WARNING POSTED N OF 27N BETWEEN 74W AND 65W AND EXPECTED TO PERSIST TILL LATE THIS AFTERNOON...WHICH IS ABOUT 12 HOURS LONGER THAN PREVIOUSLY EXPECTED. THE ASSOCIATED COLD FRONT REACHES FROM BERMUDA TO WINDWARD PASSAGE AROUND SUNRISE SUN...FROM 31N55W TO HISPANIOLA LATE SUN NIGHT...AND MOVE SE OF AREA AROUND SUNSET TUE. A SECOND COLD FRONT WILL MOVE OFF NE FL COAST LATE TONIGHT MAINTAINING W FLOW AT 25 TO 30 KT OVER THE WATERS N OF 28N AS FA R E AS 65W THROUGH TUE NIGHT. GFS HINTING AT ANOTHER GALE WARNING TUE NIGHT INTO WED NEAR 30N55W BUT OTHER GUIDANCE IS NOWHERE NEAR AS STRONG. WARNINGS... ATLC... .AMZ080...GALE WARNING N OF 27N BETWEEN 74W AND 65W TODAY. CARIBBEAN... .NONE. GULF OF MEXICO... .NONE. FOR ADDITIONAL INFORMATION PLEASE VISIT HTTP://WWW.HURRICANES.GOV/MARINE $$ FORECASTER NELSON