000 AGXX40 KNHC 241719 MIMATS MARINE WEATHER DISCUSSION NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 130 PM EDT THU JUL 24 2008 MARINE WEATHER DISCUSSION FOR GULF OF MEXICO...CARIBBEAN SEA AND SOUTHWEST NORTH ATLC S OF 31N W OF 55W. GULF OF MEXICO... WIND AND SEAS CONTINUE TO SUBSIDE FROM THE EFFECTS OF DOLLY. ALL WARNINGS HAVE EXPIRED AND ONLY COASTAL BUOYS CARRY LINGERING SE SWELLS. CONVECTIVE OUTER BANDS W OF 95W STILL REMAIN OVER NWRN GULF...BUT QUICKLY DECREASING IN AREA AND STRENGTH. ATLC RIDGE EXTEND INTO N CENTRAL GULF THIS AFTERNOON AND PRES GRADIENT RELAXES BRINGING WINDS DOWN WITH SLIGHT SEAS TO NRN HALF AND LIGHT TO MODERATE ELY WIND IN SRN HALF. CARIBBEAN AND TROPICAL ATLC... STRONG TRADES CONTINUE ACROSS S CENTRAL CARIBBEAN AS ATLC RIDGE REBUILDS AND EXTEND W. TROPICAL WAVE ALONG 84W MOVE ACROSS GULF OF HONDURAS TONIGHT WITH ASSOCIATED CONVECTION AND WIND SURGE NEAR WAVE AXIS THEN MOVE W OF AREA THU NIGHT. SECOND TROPICAL WAVE ALONG 58W WILL TRACK W THROUGH CARIBBEAN AT 15 KT. SECOND WAVE HAS NO SIGNIFICANT ASSOCIATED CONVECTION AS AIR MASS REMAINS VERY DRY OVER ERN HALF OF BASIN ON ACCOUNT OF MID-UPPER LEVEL RIDGE CENTERED OVER PUERTO RICO. MODERATE TO STRONG SUBSIDENCE UNDER RIDGE PRECLUDES ANY CLOUD DEVELOPMENT. LITTLE CHANGE EXPECTED THROUGH FORECAST PERIOD AS PRES PATTERN REMAINS UNDER A STEADY STATE. ONLY FLY IN THE OINTMENT LEFT IS LARGE TROPICAL WAVE APPROACHING TROPICAL N ATLC WATERS LATE IN PERIOD WITH INCREASE IN WIND AND SEAS. HOWEVER...MOST OF MODEL GUIDANCE HAS SOFTEN THEIR PREVIOUS STRONG LOW PRES DEVELOPMENT AND NOW KEEP IT AS AN OPEN WAVE. SW N ATLC... WELL ESTABLISHED RIDGE OVER CENTRAL ATLC PROVIDING LIGHT SE TO S WINDS N OF 25N AND LIGHT TO MODERATE E TO SE WINDS S OF 25N. LITTLE CHANGE THROUGH MOST OF FORECAST PERIOD TILL SUN AND MON WHEN CENTRAL ATLC RIDGE WEAKENS AND RETREATS E LEAVING LIGHT SLY WINDS ACROSS ENTIRE BASIN. WARNINGS... ATLANTIC... NONE. CARIBBEAN... NONE. GULF OF MEXICO... NONE. .FORECASTER WALLY BARNES. TROPICAL PREDICTION CENTER.