000 AGXX40 KNHC 200745 CCA MIMATS MARINE WEATHER DISCUSSION...CORRECTED NWS NATIONAL HURRICANE CENTER MIAMI FL 245 AM EST SUN NOV 20 2011 MARINE WEATHER DISCUSSION FOR THE GULF OF MEXICO...CARIBBEAN SEA AND TROPICAL N ATLC...AND SOUTHWEST NORTH ATLC S OF 31N W OF 55W. GULF OF MEXICO... A RIDGE OF HIGH PRES WILL REMAIN IN PLACE ACROSS THE NORTHERN GULF WATERS THROUGH MIDWEEK BEFORE SHIFTING E AS A COLD FRONT MOVES OFF THE TEXAS COAST LATE TUE/EARLY WED. THIS WILL MAINTAIN FRESH TO STRONG E TRADES OVER THE EASTERN GULF THROUGH TODAY...GRADUALLY DIMINISHING THROUGH TUE. EXPECT FRESH SE RETURN FLOW OFF THE TEXAS COAST THROUGH TUE NIGHT AS WELL. LATEST BUOY OBSERVATIONS CONTINUE TO INDICATE SHOW 3 TO 6 FT ACROSS THE GULF. THE FRONT IS CURRENTLY FORECAST TO MOVE OFF THE TEXAS COAST LATE TUE/EARLY WED...AND EXTEND FROM THE FLORIDA BIG BEND AREA TO VERACRUZ MEXICO BY WED EVENING. FRESH NORTHERLY WINDS WILL PREVAIL W OF THE FRONT. SW N ATLC N OF 19N W OF 55W...CORRECTED FRONT POSITION THU... 1011 MB LOW PRES IS CENTERED E OF THE AREA NEAR 21N54W...ALONG A STATIONARY TROUGH GENERALLY ORIENTED N-S ALONG 54W. A SURFACE RIDGE EXTENDS N OF THE AREA FROM THE N CENTRAL ATLC THROUGH THE CAROLINAS AND ACROSS THE NORTHERN GULF OF MEXICO. LATEST ASCAT SCATTEROMETER DATA ALONG WITH BUOY AND SHIP OBSERVATIONS INDICATE FRESH TO STRONG NE TO E WINDS PERSIST BETWEEN THE HIGH AND LOW PRES...WITH SEAS BUILDING TO 8 TO 12 FT. THE LOW PRES WILL DEEPEN AS IT SHIFTS NE THROUGH TUE. FRESH TO STRONG NE WINDS WILL PERSIST OVER MUCH OF THE AREA S OF 27N...ACCOMPANIED BY NE SWELL TO 12 FT. WINDS AND SEAS WILL DIMINISH BY MID WEEK AS THE LOW PRES DRIFTS FURTHER TO THE NE INTO THE CENTRAL N ATLC. SOUTHERLY FLOW OFF THE N FLORIDA COAST WILL INCREASE THROUGH WED...AHEAD OF ANOTHER COLD FRONT EXPECTED TO MOVE INTO THE AREA FROM THE NORTH LATE WED. THE FRONT WILL MOVE SE THU...AND REACH FROM 31N68W TO WESTERN CUBA BY THU AFTERNOON. CARIBBEAN SEA AND TROPICAL N ATLC S OF 19N W OF 55W...THE PRESSURE GRADIENT BETWEEN HIGH PRESSURE N OF THE AREA...AND LOW PRESSURE ASSOCIATED WITH THE MONSOON TROUGH OVER THE SW CARIBBEAN IS SUPPORTING FRESH NE WINDS AS DEPICTED BY THE LATEST ASCAT SCATTEROMETER PASS AT 0210 UTC. THE GRADIENT WILL WEAKEN BY MIDWEEK AS THE RIDGE OF HIGH PRESSURE SHIFTS EASTWARD...AND WINDS WILL DIMINISH BELOW 20 KT BY WED AFTERNOON. WARNINGS... GULF OF MEXICO... .NONE. .CARIBBEAN SEA AND TROPICAL N ATLC... .NONE. .SW N ATLC... .NONE. FOR ADDITIONAL INFORMATION PLEASE VISIT HTTP://WWW.HURRICANES.GOV/MARINE $$ FORECASTER CHRISTENSEN