000 AGXX40 KNHC 250723 MIMATS MARINE WEATHER DISCUSSION NWS NATIONAL HURRICANE CENTER MIAMI FL 330 AM EDT WED JUL 25 2012 MARINE WEATHER DISCUSSION FOR THE GULF OF MEXICO...CARIBBEAN SEA AND SOUTHWEST NORTH ATLC S OF 31N W OF 55W. GULF OF MEXICO... THE WESTERN PART OF ATLC SUBTROPICAL RIDGE EXTENDS FROM CENTRAL FL TO THE NE TX COAST WITH A WEAKENING SURFACE TROUGH NE OF THE RIDGE EXTENDING FROM FL PANHANDLE S TO NEAR 28N86W. THE RIDGE WILL REMAIN IN PLACE ACROSS THE NORTHERN GULF AND CHANGE LITTLE OVER THE NEXT FEW DAYS. SLY RETURN FLOW WILL INCREASE TO 15-20 KT ACROSS THE W CENTRAL WATERS THROUGH THU NIGHT. ENHANCEMENT OF NE WINDS TO 15-20 KT ALONG NW YUCATAN PENINSULA WILL PREVAIL THIS EVENING WITH THE GRADIENT STRENGTHENED THU NIGHT AS THE NORTHERN PORTION OF A TROPICAL WAVE PASSES THROUGH THE BAY OF CAMPECHE. SW N ATLC S OF 31N W OF 65W... SUBTROPICAL RIDGE EXTENDING ALONG 26N TO CENTRAL FL WILL SHIFT S ALONG 25N TO SOUTH FL WITH LITTLE CHANGE THROUGH FRI. THE RIDGE SHIFTS N AGAIN ON FRI NIGHT REACHING ALONG 28N55W TO 27N80W. AS THE RIDGE SHIFTS S TODAY A COLD FRONT PASSES THROUGH OFFSHORE ZONES AMZ113 AND AMZ115 WITH SW-W WINDS INCREASING 20-25 KT THEN BACKING TO NW OVER EXTREME N PORTION WHILE DIMINISHING TO ABOUT 10 KT. MODERATE TO FRESH TRADE WINDS WILL CONTINUE ACROSS WATERS S OF 23N THROUGH THE PERIOD. CARIBBEAN SEA AND TROPICAL N ATLC W OF 55W... HIGH PRES RIDGE N OF THE AREA WILL MAINTAIN FRESH TO STRONG NE-E WINDS ACROSS THE AREA BETWEEN 68-82W THROUGH THU NIGHT. LATEST GFS INDICATES TRADES ALONG THE NW COAST OF COLOMBIA EARLY FRI WILL BE AROUND 30 KT...AND MAY APPROACH MINIMAL GALE FORCE. A TROPICAL WAVE IN THE WESTERN CARIBBEAN WILL CONTINUE W THROUGH TONIGHT AND THU AND MOVE W OF THE AREA EARLY FRI. A SECOND WAVE IN THE CENTRAL CARIBBEAN NEAR 74W WILL MOVE THROUGH THE WESTERN CARIBBEAN THU AND FRI. A TROPICAL WAVE WELL E OF THE AREA WILL REACH ALONG 35W FRI...ALONG 40W SAT...AND ALONG 45W SUN WITH GFS SUGGESTING WEAK LOW PRES DEVELOPMENT ALONG THE WAVE AXIS WITH THE LOW TRACKING WNW REACHING NEAR ABOUT 14N45W SUN. 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 MUNDELL