000 AGXX40 KNHC 171745 MIMATS MARINE WEATHER DISCUSSION NWS NATIONAL HURRICANE CENTER MIAMI FL 145 PM EDT SUN MAR 17 2013 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... AN UPPER LEVEL TROUGH OVER THE WESTERN GULF IS TRIGGERING SOME SHOWERS AND ISOLATED TSTMS IN THE NORTHERN AND NE GULF. LITTLE CHANGE IN MARINE CONDITIONS EXPECTED THROUGH MON. A COLD FRONT WILL ENTER THE NORTHERN GULF EARLY TUE AND REACH FROM FLORIDA PANHANDLE TO NEAR CORPUS CHRISTI TEXAS TUE...THEN STALL FROM SW FLORIDA TO THE TEXAS/MEXICO BORDER TUE NIGHT. DEVELOPING LOW PRES OVER OKLAHOMA AND NORTHERN TEXAS WILL LIFT THE STATIONARY FRONT NORTHWARD AS A WARM FRONT THU. THE COLD FRONT ASSOCIATED WITH THIS LOW PRES SYSTEM IS FORECAST TO REACH THE NW GULF FRI. CARIBBEAN SEA AND TROPICAL N ATLC S OF 22N W OF 55W... TAIL END OF A SHEAR LINE REACHES TO NEAR THE VIRGIN ISLANDS AND PUERTO RICO. THE SHEAR LINE WILL SAG SOUTHWARD THROUGH MON THEN BECOME DIFFUSE TUE. FRESH TO STRONG TRADE WINDS WILL PREVAIL IN THE CENTRAL CARIBBEAN THROUGH MON...THEN WEAKEN TUE THROUGH THU AS HIGH PRES RIDGE N OF AREA SHIFTS E. FRESH E-SE WINDS EXPECTED IN THE GULF OF HONDURAS EACH NIGHT THROUGH WED. NORTHERLY SWELLS WILL IMPACT THE TROPICAL N ATLC WATERS AND CARIBBEAN PASSAGES THROUGH MON NIGHT. SW N ATLC S OF 31N W OF 55W... 1025 MB HIGH CENTERED NEAR 27N63W IS ANCHORING A RIDGE ALONG 27N WITH LIGHT VARIABLE WINDS FROM 24N TO 26N...AND MODERATE WINDS ELSEWHERE. THE RIDGE WILL LIFT N THROUGH TUE. S TO SW WINDS WILL INCREASE OVER NW WATERS MON NIGHT AND TUE AHEAD OF A COLD FRONT THAT WILL MOVE EASTWARD ACROSS NORTHERN PORTION TUE AND WED... FOLLOWED BY A REINFORCING COLD FRONT THU THAT WEAKENS FRI. NOTE...GRIDDED MARINE FORECAST IS AVAILABLE AT WWW.NHC.NOAA.GOV/TAFB/GRIDDED_MARINE WARNINGS... GULF OF MEXICO... .NONE. CARIBBEAN SEA AND TROPICAL N ATLC... .NONE. SW N ATLC... .NONE. FOR ADDITIONAL INFORMATION PLEASE VISIT WWW.HURRICANES.GOV/MARINE $$ FORECASTER MUNDELL