000 AGXX40 KNHC 120759 MIMATS MARINE WEATHER DISCUSSION NWS NATIONAL HURRICANE CENTER MIAMI FL 400 AM EDT TUE JUL 12 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... HIGH PRES CENTER 1018 MB AT 28N83W EXTEND ATLC RIDGE THROUGHOUT GULF OF MEXICO. BASIN WINDS LIGHT AND VARIABLE ACROSS N HALF OF GULF WITH SEAS 1-2 FT WHILE MODERATE E-SE BREEZE WITH SEAS 2-4 FT THROUGH SAT. ANOTHER TROPICAL WAVE NOW MOVING ACROSS WESTERN CARIBBEAN EXPECTED TO ENTER OVER SW GULF ZONE WED WITH SCATTERED ASSOCIATED CONVECTION GIVEN THE EXPECTED FAVORABLE UPPER LEVEL ENVIRONMENT. SOUTHWEST NORTH ATLC... ATLC SURFACE RIDGE MAINTAIN GOOD SUPPORT AT MID AND UPPER LEVELS AND EXPANDS W WITH THE BUILDING OF NEW HIGH PRES OVER NE GULF. RIDGE HOLDS ITS PLACE THROUGH THU WHEN WEAK LOW PRES CENTER AND ASSOCIATED COLD FRONT BRUSH NE CORNER OF AREA. RIDGE WEAKENS AND GIVES WAY TO COLD FRONT FRI. CARIBBEAN SEA AND TROPICAL N ATLC W OF 55W... TROPICAL WAVE FROM 17N63W TO 11N67W ENTERING AREA OF FAVORABLE UPPER LEVEL CONDITIONS AND LIKELY TO INTENSIFY WITH INCREASING CONVECTION MAINLY S OF 15N. PREVIOUS AREA OF VERY STRONG ELY TRADES HAS DIMINISHED IN COVERAGE BUT STILL CARRY STRONG WINDS AND 10-11 FT SEAS...DOWN A NOTCH FROM PREVIOUS 13-14 FT. WIND AND SEAS EXPECTED TO COME DOWN FURTHER LATE TUE AS TROPICAL WAVE MOVES INLAND. NEXT TROPICAL WAVE CROSS INTO EASTERN CARIBBEAN FROM TROPICAL ATLC ZONE TUE...INTO CENTRAL CARIBBEAN WED AND THU AND WESTERN CARIBBEAN FRI. WARNINGS... ATLC... .NONE. CARIBBEAN... .NONE. GULF OF MEXICO... .NONE. FOR ADDITIONAL INFORMATION PLEASE VISIT HTTP://WWW.HURRICANES.GOV/MARINE $$ FORECASTER WALLY BARNES 000 AGXX40 KNHC 120759 MIMATS MARINE WEATHER DISCUSSION NWS NATIONAL HURRICANE CENTER MIAMI FL 400 AM EDT TUE JUL 12 2011 MARINE WEATHER DISCUSSION FOR THE GULF OF MEXICO...CARIBBEAN SEA AND TROPICAL N ATLC...AND SOUTHWEST NORTH ATLC S OF 31N W OF 55W. GULF OF MEXICO... HIGH PRES CENTER 1018 MB AT 28N83W EXTEND ATLC RIDGE THROUGHOUT GULF OF MEXICO. BASIN WINDS LIGHT AND VARIABLE ACROSS N HALF OF GULF WITH SEAS 1-2 FT WHILE MODERATE E-SE BREEZE WITH SEAS 2-4 FT THROUGH SAT. ANOTHER TROPICAL WAVE NOW MOVING ACROSS WESTERN CARIBBEAN EXPECTED TO ENTER OVER SW GULF ZONE WED WITH SCATTERED ASSOCIATED CONVECTION GIVEN THE EXPECTED FAVORABLE UPPER LEVEL ENVIRONMENT. SOUTHWEST NORTH ATLC... ATLC SURFACE RIDGE MAINTAIN GOOD SUPPORT AT MID AND UPPER LEVELS AND EXPANDS W WITH THE BUILDING OF NEW HIGH PRES OVER NE GULF. RIDGE HOLDS ITS PLACE THROUGH THU WHEN WEAK LOW PRES CENTER AND ASSOCIATED COLD FRONT BRUSH NE CORNER OF AREA. RIDGE WEAKENS AND GIVES WAY TO COLD FRONT FRI. CARIBBEAN SEA AND TROPICAL N ATLC W OF 55W... TROPICAL WAVE FROM 17N63W TO 11N67W ENTERING AREA OF FAVORABLE UPPER LEVEL CONDITIONS AND LIKELY TO INTENSIFY WITH INCREASING CONVECTION MAINLY S OF 15N. PREVIOUS AREA OF VERY STRONG ELY TRADES HAS DIMINISHED IN COVERAGE BUT STILL CARRY STRONG WINDS AND 10-11 FT SEAS...DOWN A NOTCH FROM PREVIOUS 13-14 FT. WIND AND SEAS EXPECTED TO COME DOWN FURTHER LATE TUE AS TROPICAL WAVE MOVES INLAND. NEXT TROPICAL WAVE CROSS INTO EASTERN CARIBBEAN FROM TROPICAL ATLC ZONE TUE...INTO CENTRAL CARIBBEAN WED AND THU AND WESTERN CARIBBEAN FRI. WARNINGS... ATLC... .NONE. CARIBBEAN... .NONE. GULF OF MEXICO... .NONE. FOR ADDITIONAL INFORMATION PLEASE VISIT HTTP://WWW.HURRICANES.GOV/MARINE $$ FORECASTER WALLY BARNES