000 AGXX40 KNHC 121848 MIMATS MARINE WEATHER DISCUSSION NWS NATIONAL HURRICANE CENTER MIAMI FL 200 PM EDT WED SEP 12 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... STATIONARY FRONT EXTEND FROM STRAITS OF FLORIDA TO SW LOUISIANA COAST WILL NOT DIE WITHOUT A FIGHT. HEALTHY SHORTWAVE ROTATES AROUND UPPER LEVEL CYCLONE TO BRING EXTRA ENERGY TO AN OTHERWISE DIFFUSING SURFACE FEATURE. CLUSTERS OF TSTMS...WITH A FEW STRONG ONES SHOWN IN SATELLITE IMAGERY...FORMED ALONG BOUNDARY W OF 86W AS AVAILABLE MOISTURE STILL REMAINS UNTAPPED. SHORTWAVE LIFTS NE THU AND FRONT MAY DRIFT N AS IT DISSIPATES BY FRI. NE QUARTER OF BASIN MAY EXPERIENCE SUSTAINED FRESH E-SE WIND WITH GUSTS TO GALE FORCE N OF FRONT THROUGH FRI. SW GULF EXPERIENCING NUMEROUS TSTMS S OF 25N W OF 95W AS WEAK SURFACE FRONT DRIFT W INLAND LATER TONIGHT. ELSEWHERE LIGHT TO MODERATE E-SE BREEZE IS EXPECTED THROUGHOUT BASIN AS RIDGE BUILDS BEHIND DISSIPATING FRONT. SOUTHWEST NORTH ATLC S OF 31N W OF 55W... COLD FRONT EXTEND FROM 26N71W TO 24N70W THEN BECOMES STATIONARY TO STRAITS OF FLORIDA. BROAD UPPER LEVEL ANTICYCLONE JUST N OF COLD FRONT PROVIDE MODERATE DIFFLUENCE OVER W TIP OF BOUNDARY ENHANCING SCATTERED MODERATE CONVECTION ALONG NORTHERN BAHAMAS ISLAND CHAIN. MODEL GUIDANCE HAVE RIDGE FORCE E BY LONGWAVE UPPER LEVEL TROUGH WHILE COLD FRONT WEAKENS AND DISSIPATES. MODERATE TO FRESH NE TO E BREEZE REMAIN BUT SEAS BUILD AS SWELLS FROM TROPICAL STORM...SOON TO BE HURRICANE...NADINE SKIRTS 55W ON ITS NORTHERLY TRACK. ASSOCIATED 6-9 FT SWELL PROPAGATE E OVER BAHAMAS BY LATE SAT AND SUN AND BEGIN SUBSIDING MON. CARIBBEAN SEA AND TROPICAL N ATLC W OF 55W... MODERATE TO FRESH TRADE WINDS ACROSS CARIBBEAN EXPECTED TO DIMINISH AS NADINE FORCES RIDGE TO BUDGE AND EASE PRESSURE GRADIENT THU THROUGH TUE. NADINE EXPECTED TO REMAIN E OF 55W BUT ASSOCIATED 6-9 FT SWELL IMPACT NE CORNER OF SW TROPICAL ATLC WATERS. 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 STRIPLING