000 AGXX40 KNHC 170825 MIMATS MARINE WEATHER DISCUSSION NWS NATIONAL HURRICANE CENTER MIAMI FL 400 AM EDT TUE APR 17 2012 MARINE WEATHER DISCUSSION FOR THE GULF OF MEXICO...CARIBBEAN SEA AND SOUTHWEST NORTH ATLC S OF 31N W OF 55W. GULF OF MEXICO... PRES GRADIENT BETWEEN 1025 MB ATLC HIGH PRES AND COLD FRONT MOVING OFF TEXAS COAST RESULTS IN BRISK WINDS ACROSS MOST TO GULF. WINDS DIMINISH TODAY AS HIGH PRES WEAKENS AND DRIFT SE. COLD FRONT MOVED OFF COAST OF TEXAS EXPECTED TO STALL ALONG 90W LATER TODAY THEN LIFT NE AND DISSIPATE TONIGHT. ATLC RIDGE REBUILDS W OVER NORTHERN GULF WATERS THU. ANOTHER COLD FRONT MOVES INTO NW GULF SAT. CARIBBEAN SEA... ATLC HIGH PRES CENTER N OF AREA MAINTAINS TIGHT PRES GRADIENT ACROSS BASIN PRODUCING FRESH TO STRONG NE WINDS AND SEAS TO 8-10 FT ACROSS ATLC PASSAGES INTO CARIBBEAN SEA. HIGH PRES CONTINUES WEAKENING WED WITH DIMINISHING WINDS THROUGH SAT. TROPICAL N ATLC S OF 19N W OF 55W... DISSIPATING STATIONARY FRONT FROM 16N55W TO 14N64W. FRESH NE WINDS WITH SEAS TO 9 FT BEHIND REMNANTS OF FRONT. WINDS DIMINISH BELOW 20 KT AND SEAS BELOW 8 FT TONIGHT THROUGH SAT. SW NORTH ATLC S OF 31N W OF 55W... BROAD SURFACE HIGH PRES CENTER 1025 MB EXTEND RIDGE ALONG 31N PRODUCE MODERATE TO STRONG NE WINDS ACROSS S PORTION OF AREA...WITH LIGHTER WINDS N OF 24N. HIGH PRES MOVES SE AND WEAKENS TONIGHT. SELY WINDS INCREASE TO 20 KT OVER NW PORTION OF AREA AHEAD OF APPROACHING COLD FRONT SAT. NOTE... EFFECTIVE APR 3, 2012 AT 1800 UTC THE OFFSHORE WATERS FORECAST ZONES CHANGED FOR THE CARIBBEAN AND SW N ATLANTIC AND THE GULF OF MEXICO. ISSUANCE TIME FOR THE GULF OF MEXICO OFFSHORE WATERS FORECASTS IS REFERENCED TO THE EASTERN TIME ZONE. FOR DETAILS SEE WWW.NHC.NOAA.GOV/ABOUTTAFBPROD.SHTML#OWF GRIDDED MARINE OUTPUT IS AVAILABLE AT WWW.NHC.NOAA.GOV/TAFB/GRIDDED_MARINE (LOWER CASE). 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 WALLY BARNES 000 AGXX40 KNHC 170825 MIMATS MARINE WEATHER DISCUSSION NWS NATIONAL HURRICANE CENTER MIAMI FL 400 AM EDT TUE APR 17 2012 MARINE WEATHER DISCUSSION FOR THE GULF OF MEXICO...CARIBBEAN SEA AND SOUTHWEST NORTH ATLC S OF 31N W OF 55W. GULF OF MEXICO... PRES GRADIENT BETWEEN 1025 MB ATLC HIGH PRES AND COLD FRONT MOVING OFF TEXAS COAST RESULTS IN BRISK WINDS ACROSS MOST TO GULF. WINDS DIMINISH TODAY AS HIGH PRES WEAKENS AND DRIFT SE. COLD FRONT MOVED OFF COAST OF TEXAS EXPECTED TO STALL ALONG 90W LATER TODAY THEN LIFT NE AND DISSIPATE TONIGHT. ATLC RIDGE REBUILDS W OVER NORTHERN GULF WATERS THU. ANOTHER COLD FRONT MOVES INTO NW GULF SAT. CARIBBEAN SEA... ATLC HIGH PRES CENTER N OF AREA MAINTAINS TIGHT PRES GRADIENT ACROSS BASIN PRODUCING FRESH TO STRONG NE WINDS AND SEAS TO 8-10 FT ACROSS ATLC PASSAGES INTO CARIBBEAN SEA. HIGH PRES CONTINUES WEAKENING WED WITH DIMINISHING WINDS THROUGH SAT. TROPICAL N ATLC S OF 19N W OF 55W... DISSIPATING STATIONARY FRONT FROM 16N55W TO 14N64W. FRESH NE WINDS WITH SEAS TO 9 FT BEHIND REMNANTS OF FRONT. WINDS DIMINISH BELOW 20 KT AND SEAS BELOW 8 FT TONIGHT THROUGH SAT. SW NORTH ATLC S OF 31N W OF 55W... BROAD SURFACE HIGH PRES CENTER 1025 MB EXTEND RIDGE ALONG 31N PRODUCE MODERATE TO STRONG NE WINDS ACROSS S PORTION OF AREA...WITH LIGHTER WINDS N OF 24N. HIGH PRES MOVES SE AND WEAKENS TONIGHT. SELY WINDS INCREASE TO 20 KT OVER NW PORTION OF AREA AHEAD OF APPROACHING COLD FRONT SAT. NOTE... EFFECTIVE APR 3, 2012 AT 1800 UTC THE OFFSHORE WATERS FORECAST ZONES CHANGED FOR THE CARIBBEAN AND SW N ATLANTIC AND THE GULF OF MEXICO. ISSUANCE TIME FOR THE GULF OF MEXICO OFFSHORE WATERS FORECASTS IS REFERENCED TO THE EASTERN TIME ZONE. FOR DETAILS SEE WWW.NHC.NOAA.GOV/ABOUTTAFBPROD.SHTML#OWF GRIDDED MARINE OUTPUT IS AVAILABLE AT WWW.NHC.NOAA.GOV/TAFB/GRIDDED_MARINE (LOWER CASE). 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 WALLY BARNES