000 AGXX40 KNHC 181857 MIMATS MARINE WEATHER DISCUSSION NWS NATIONAL HURRICANE CENTER MIAMI FL 200 PM EST FRI NOV 18 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... NE WINDS 15-20 KT ARE NOTED ACROSS MOST OF THE GULF W OF A WEAKENING STATIONARY FRONT TO 93W. THE FRONT EXTENDS THE STRAITS OF FLORIDA TO THE YUCATAN PENINSULA WILL BECOME DIFFUSE TONIGHT. WINDS DECREASE ACROSS THE CENTRAL GULF AS HIGH PRES MOVES E...HOWEVER THIS WILL RESULT IN INCREASING SLY RETURN FLOW OVER THE FAR NW GULF TONIGHT. THE PRES GRADIENT WILL REMAIN FAIRLY TIGHT OVER THE EASTERN GULF THROUGH THE WEEKEND...THEN BE CONFINED TO SE GULF MON AND TUE THEN DECREASE WED. COLD FRONT WILL MOVE OFF THE TEXAS COAST EARLY WED THEN MOVE RAPIDLY AND EXTEND FROM THE FLORIDA PANHANDLE TO THE TAMPICO MEXICO WED AFTERNOON. NE WINDS INCREASE TO 20 KT BEHIND THE FRONT. SW N ATLC S OF 31N W OF 65W... COLD FRONT EXTENDING FROM 30N65W TO THE STRAITS OF FLORIDA WILL WEAKEN AS IT MOVES SE TO 31N64W TO THE STRAITS OF FLORIDA THROUGH LATE FRI. NE WINDS 20-25 KT BEHIND THE FRONT. THE WINDS WILL DECREASE OVER THE NW PORTION OF THE AREA AS HIGH PRES BUILDS AND THE STRONGEST GRADIENT WILL BE OVER THE SE HALF OF THE AREA. HIGH PRES MOVES JUST N OF THE AREA TUE AND WINDS DECREASE TO BELOW 20 KT ACROSS THE ENTIRE AREA HOWEVER LARGE NE SWELL CONTINUE OVER EASTERN PORTION OF THE ZONE. THE SEAS SUBSIDE ON WED. CARIBBEAN SEA AND TROPICAL N ATLC W OF 55W... HIGH PRES WILL BUILD BEHIND A FRONT N OF THE AREA AND ELY WINDS INCREASE TO 15-20 KT N OF AROUND 15N THROUGH TUE THEN DECREASE WED. A LOW PRES IS FORECAST TO DEVELOP E OF THE AREA HOWEVER IT IS EXPECTED TO MOVE N AND REMAIN E OF THE AREA. HOWEVER THE COMBINATION OF THE LOW AND THE HIGH N OF THE AREA WILL PRODUCE A TIGHT GRADIENT WITH STRONG NE WINDS THAT WILL GENERATE SWELL WITH HEIGHTS TO 8 FT THROUGH THE ATLC PASSAGES INTO THE NE AND N CENTRAL CARIBBEAN STARTING SAT THEN SUBSIDING BY WED. 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 DGS