000 AGXX40 KNHC 270907 MIMATS MARINE WEATHER DISCUSSION NWS NATIONAL HURRICANE CENTER MIAMI FL 430 AM EDT FRI JUL 27 2012 MARINE WEATHER DISCUSSION FOR THE GULF OF MEXICO...CARIBBEAN SEA AND SOUTHWEST NORTH ATLC S OF 31N W OF 55W. GULF OF MEXICO... STATIONARY ATLC HIGH PRES RIDGE SITS ACROSS N GULF WATERS ALONG 28N MAINTAINING LIGHT TO MODERATE E TO SE BREEZE ACROSS S HALF OF BASIN AND LIGHT WINDS OVER N HALF. SEAS REMAIN UNDER 4 FT. TROPICAL WAVE PRESENTLY OVER YUCATAN PENINSULA EXPECTED TO ENTER BAY OF CAMPECHE LATER TODAY WITH POSSIBILITY OF FRESH NE WINDS W AND MODERATE SE E OF ITS AXIS. SEAS TO REMAIN UNDER 5 FT. SCATTERED CONVECTION EXPECTED TO REMAIN S OF 22N AS MID AND HIGH LEVEL MOISTURE REMAINS SCARCE. WITH LITTLE CHANGE IN PATTERN... MODEL GUIDANCE REMAIN IN GOOD AGREEMENT. CARIBBEAN SEA AND TROPICAL N ATLC W OF 55W... STATIONARY ATLC HIGH PRES N OF AREA MAINTAINS TIGHT GRADIENT WITH 1004 MB LOW PRES OVER COLOMBIA. LARGE REGION OVER CENTRAL CARIBBEAN UNDER STRONG TO NEAR GALE E WINDS WITH SEAS REACHING A HIGH OF 13 FT. ALL MODEL GUIDANCE OSCILLATE AROUND 12-14 FT. LOW PRES WEAKENS LATER TONIGHT AND SAT WITH WINDS DIMINISHING QUICKLY BY LATE SAT NIGHT IN BOTH STRENGTH AND COVERAGE... ALBEIT REMAINING NEAR 20 KT WITH LINGERING SWELLS NEAR 8-9 FT. TROPICAL WAVE ALONG 53W ENTERS TROPICAL N ATLC ZONES TODAY... INTO E CARIBBEAN LATE SAT THROUGH SUN...AND INTO CENTRAL CARIBBEAN MON. WAVE EMBEDDED IN LARGE DOME OF DRY AFRICAN DUST THAT INHIBITS ANY SIGNIFICANT CONVECTION. MINOR INCREASE IN WIND SPEED OR SEAS IS EXPECTED WITH WAVE. SW N ATLC S OF 31N W OF 65W... COLD FRONT LIES FROM 31N60W TO 28N65W THEN STATIONARY FRONT TO 31N71W. WEAK LOW PRES 1015 MB ASSOCIATED WITH FRONT BRINGS AN AREA OF FRESH TO STRONG SW BREEZE WITHIN 240 NM E OF FRONTAL BOUNDARY WHICH QUICKLY MOVE N OF AREA LATER TODAY GIVING WAY TO REBUILDING ATLC RIDGE ACROSS ENTIRE BASIN ANCHORED BY HIGH PRES CENTER 1019 MB NEAR 28N75W. THIS IN TURN BRING LIGHT TO MODERATE WINDS WITH SLIGHT SEAS OVER REGION UNTIL CREST OF TROPICAL WAVE ...NOW ALONG 53W...ENTERS BASIN NEAR PUERTO RICO AND BRINGS FRESH NE WINDS AND SEAS TO 6-7 FT S OF 22N. NOTE...GRIDDED MARINE FORECAST IS AVAILABLE AT WWW.NHC.NOAA.GOV/TAFB/GRIDDED_MARINE GULF OF MEXICO... .NONE. CARIBBEAN SEA... .NONE. SW N ATLANTIC... .NONE. FOR ADDITIONAL INFORMATION PLEASE VISIT WWW.HURRICANES.GOV/MARINE $$ FORECASTER WALLY BARNES