000 AGXX40 KNHC 250513 MIMATS MARINE WEATHER DISCUSSION NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 115 AM EDT FRI JUL 25 2008 MARINE WEATHER DISCUSSION FOR GULF OF MEXICO...CARIBBEAN SEA AND SOUTHWEST NORTH ATLC S OF 31N W OF 55W. GULF OF MEXICO... CONDITIONS HAVE SIGNIFICANTLY IMPROVED OVER THE W GULF NOW THAT T.D. DOLLY IS WELL INLAND OVER N MEXICO. BUOY/SHIP OBS AND A PARTIAL QSCAT PASS REVEAL 15-20 KT SE WINDS W OF 93W WITH MAX SEAS NEAR 8 FT IN RESIDUAL SE SWELL OVER THE FAR NW WATERS. WINDS WILL DIMINISH TO 10-15 KT OVER THE NW WATERS LATE TODAY BUT WILL LIKELY REMAIN 15-20 KT OVER THE SW WATERS THROUGH FRI NIGHT AS THE N PORTION OF A TROPICAL WAVE CROSSES THE AREA. OVER THE MIDDLE AND EAST ZONES...WEAK HIGH PRES IS CENTERED NEAR 28N88W PROVIDING LIGHT AND VARIABLE WINDS N OF 26N AND 10-15 KT NE TO E WINDS S OF 26N. THIS RIDGING IS EXPECTED TO SAG SOUTH ALLOWING LIGHT SLY WINDS TO DEVELOP ACROSS THE ENTIRE N HALF BY SAT NIGHT AND LIGHT NE TO E WINDS ACROSS THE S HALF...WITH LITTLE CHANGE EXPECTED THROUGH TUE. CARIBBEAN AND TROPICAL ATLC... PRES GRADIENT REMAINS RATHER TIGHT ACROSS THE AREA DUE TO STRONG HIGH PRES CENTERED OVER THE CENTRAL ATLC AND A PAIR OF TROPICAL WAVES ALONG 61W AND 87W. THE WRN WAVE IS ENHANCING WINDS...AS SHIP C6FZ7 AND A QSCAT PASS SUPPORT E 25-30 KT IN THE GULF OF HONDURAS. A LARGER AREA OF 20-25 KT NE TO E WINDS DOMINATE THE S CENTRAL CARIB DUE TO SEMI-PERMANENT LOW PRES TROUGHING OVER COLOMBIA. WINDS IN THE GULF OF HONDURAS ARE EXPECTED TO DIMINISH IN THE NEXT 6-12 HOURS AS THE WAVE PUSHES W...BUT OTHERWISE LITTLE SIGNIFICANT CHANGE IS EXPECTED THROUGH TUE FOR MOST AREAS. AN INCREASE IN WINDS AND SEAS IS POSSIBLE LATE THIS WEEKEND AND EARLY NEXT WEEK OVER THE TROP N ATLC WATERS ...ASSOCIATED WITH A LARGE TROPICAL WAVE CURRENTLY NEAR 40W. HOWEVER...NEARLY ALL OF THE GUIDANCE SUGGEST SOME SORT OF WAVE SPLIT WITH THE N PORTION BEING THE MORE ACTIVE (IN TERMS OF WINDS/SEAS)...WHICH IS EXPECTED TO RECURVE AND STAY E OF ALL ZONES. SW N ATLC... 1030 MB HIGH PRES CENTERED NE OF THE AREA NEAR 37N55W IS PRODUCING 15-20 KT SE WINDS ACROSS THE FAR NE WATERS AND SIMILAR MAGNITUDE E WINDS ACROSS THE FAR SE PART. SEAS ARE HIGHEST (5-6 FT) OVER THE FAR NE WATERS AS NOTED BY BUOY OBS. OTHERWISE...WINDS ARE MAINLY SE TO S AND LIGHT. A WEAK TROUGH IS EXPECTED TO CROSS THE N WATERS...SLACKENING WINDS TO 10 KT OR LESS FOR MUCH OF THE AREA THIS WEEKEND WHICH SHOULD ALLOW SEAS TO SUBSIDE TO 2-4 FT EVERYWHERE. BY MON AND TUE...RIDGING BECOMES MORE ESTABLISHED ONCE AGAIN WITH LIGHT TO MODERATE E TO SE WINDS S OF 25N AND SIMILAR MAGNITUDE S TO SW WINDS N OF 25N. WARNINGS... ATLANTIC... NONE. CARIBBEAN... NONE. GULF OF MEXICO... NONE. .FORECASTER CANGIALOSI. TROPICAL PREDICTION CENTER.