000 AGXX40 KNHC 230805 MIMATS MARINE WEATHER DISCUSSION NWS NATIONAL HURRICANE CENTER MIAMI FL 230 AM EST FRI NOV 23 2012 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... HIGH PRES OVER SE STATES MOVES INTO N GULF COASTAL WATERS WITH ANTICYCLONIC GENTLE TO MODERATE WINDS N OF 25N THROUGH TONIGHT. A COLD FRONT WILL REACH THE NORTHERN ZONES LATE TONIGHT REACHING FROM FLORIDA BIG BEND TO SE TEXAS SAT WITH FRESH NE WINDS BEHIND THE FRONT THROUGH SAT NIGHT. SEAS BUILD TO 5-6 FT N OF THE COLD FRONT SAT BUT SUBSIDE AGAIN SUN AS THE FRONT WEAKENS. BROAD HIGH PRES WILL BUILD OVER SE STATES...WITH RETURN TO E-NE FLOW IN NRN GULF WHILE LIGHT TO GENTLE WINDS PREVAIL S OF 25N THROUGH MON. CARIBBEAN SEA AND TROPICAL N ATLC W OF 55W... LOW LEVEL CONVERGENCE ASSOCIATED WITH A LOW PRES TROUGH OVER SW CARIBBEAN CONTINUES...WITH FRESH N WINDS MIXING WITH MODERATE ELY TRADES S OF 13N PRODUCING SCATTERED SHOWERS AND TSTMS. SYNOPTIC PATTERN WILL PERSIST THROUGH SUN NIGHT THEN TRANSITION INTO MORE TYPICAL SCENARIO WITH NE TRADES SPREADING WESTWARD FROM CENTRAL CARIBBEAN INTO SW PORTION. MODERATE E TRADE WINDS PREVAILING IN E AND CENTRAL CARIBBEAN WILL INCREASE MON AND TUE AS STRONG HIGH PRES BUILDS N OF THE AREA AS CENTRAL ATLC HIGH PRES IS REINFORCED BY COLD FRONT PASSAGE ASSOCIATED WITH DEEP UPPER LEVEL TROUGH. SEAS ARE 6-7 FT IN W CARIBBEAN S OF 15N WHILE REMAINDER OF REGION SEAS ARE 4 FT OR LESS EXCEPT FOR 5 FT SEAS IN TROPICAL N ATLC. AS WINDS INCREASE TO 25 KT IN CENTRAL CARIBBEAN MON SEAS WILL BUILD TO 8-11 FT S OF 15N BETWEEN 70W AND 80W...WITH AREA OF 8 FT SEAS EXPANDING TO MOST OF THE CARIBBEAN BY TUE. SW N ATLC W OF 55W... STRONG 20-30 KT NW TO N WINDS N OF 25N W OF COLD FRONT EXTENDING FROM 31N64W TO HISPANIOLA SUPPORTS SEAS TO 10-14 FT E OF BAHAMAS AND 6-8 W OF BAHAMAS. DEEP LAYER TROUGH SUPPORTING FRONT SHIFTS NE THROUGH TONIGHT...WEAKENING FRONTAL BOUNDARY AND DIMINISHING WINDS. SEAS ARE EXPECTED TO SLOWLY SUBSIDE AS A WEAKER SECONDARY FRONT BRINGS ANOTHER SURGE OF N WINDS...AND MAINTAINING SEAS TO 8-10 FT IN N SWELLS THROUGH LATE SUN...DROPPING BELOW 8 FT MON. GENTLE TO MODERATE E WINDS AND SUBSIDING SEAS WILL PREVAIL OVER THE REGION MON AND TUE AS HIGH PRES BUILDS N OF THE AREA. NOTE...GRIDDED MARINE FORECAST IS AVAILABLE AT WWW.NHC.NOAA.GOV/TAFB/GRIDDED_MARINE GULF OF MEXICO... .NONE. CARIBBEAN SEA AND TROPICAL N ATLC... .NONE. SW N ATLANTIC... .NONE. FOR ADDITIONAL INFORMATION PLEASE VISIT WWW.HURRICANES.GOV/MARINE $$ FORECASTER MUNDELL