000 AGXX40 KNHC 261913 MIMATS MARINE WEATHER DISCUSSION NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 312 PM EDT WED MAY 26 2010 MARINE WEATHER DISCUSSION FOR GULF OF MEXICO...CARIBBEAN SEA AND SOUTHWEST NORTH ATLC S OF 31N W OF 55W GULF OF MEXICO...VERY WEAK HIGH PRES TO PREVAIL ACROSS THE NW AND W PORTIONS OF THE BASIN AS PERSISTENT LOW PRES REMAINS ACROSS THE WRN ATLC AND THE EPAC INTO THE WRN CARIB. THIS WILL MAINTAIN LIGHT TO MODERATE WINDS AND MILD SEAS...FALLING TO 3 FT OR LESS BASIN WIDE BY 48 HOURS. A WEAK TROUGH NW TO SE FROM NEAR THE MOUTH OF THE MISSISSIPPI TO THE UPPER KEYS WILL SEPARATE HIGH PRES RIDGES AND BE MAIN FOCUS FOR LIMITED SHOWER ACTIVITY...WITH A SIMILAR SECOND TROUGH DROPPING INTO THE NE GULF ON FRI. GUIDANCE HINTING AT A THIRD TROUGH LEFT BEHIND OVER THE E GULF ON SUN. LIGHT AND VARIABLE WINDS THROUGHOUT THE GULF THIS WEEKEND. SW N ATLC...A 1005 MB SURFACE LOW AT 31N76W THIS AFTERNOON HAS BEGIN TO DRIFT VERY SLOWLY E OF RECENT AND WILL BEGIN TO SLOWLY WEAKEN AND MOVE E-SE NEXT 48 HOURS AND THEN MORE SE FRI AS A FRONTAL SYSTEM DROPS INTO N PORTIONS OF THE REGION FROM THE N. NELY SWELL GENERATED ON WRN QUAD OF LOW WILL AFFECT FLORIDA COASTAL WATERS THROUGH FRI...WHILE REMAINDER OF AREA WILL BE UNDER MODERATE SW TO S FLOW...EXCEPT SE TO S E OF 70W. CONVERGENCE BOUNDARIES EXTENDING SW TO NE FROM THE SE BAHAMAS WILL REMAIN ACTIVE CONVECTIVELY FOR NEXT FEW DAYS WITH ADDITIONAL MOISTURE ADVECTING NW TO N ACROSS THE NE CARIB AND ADJACENT ATLC WATERS TO THE NE FOR ACTIVE BANDS OF WEATHER E OF 70W NEXT FEW DAYS. GUIDANCE IS SUGGESTING SW WINDS OF 20-25 KT WILL DEVELOP FROM N OF PR/USVI TO THE CENTRAL ATLC NEAR 31N50W FRI AHEAD OF THE SINKING REMNANTS OF LOW AND FRONT TO ITS N. TROPICAL ATLC AND CARIBBEAN...ELONGATED CYCLONIC OR MONSOONAL FLOW NOT ATYPICAL FOR MAY HAS BECOME WELL ESTABLISHED ACROSS THE TROPICAL EPAC DURING THE PAST WEEK AND EXTENDS WEAKLY NE INTO THE W CARIB TO JUST NW OF JAMAICA...WITH MILD CYCLONIC FLOW ACROSS THE BASIN W OF 75W. THIS PATTERN WILL PERSIST THROUGH THE END OF THE WEEK WITH SCATTERED SHOWERS AND TSTMS CONTINUING ACROSS THE SW CARIB AND SE OF THIS TROUGHING. ATLC HIGH PRES RIDGE NOSED WWD INTO THE SW N ATLC TO NEAR 25N70W YIELDING SELY FLOW ACROSS THE E HALF OF THE CARIB TODAY WITH A CONVERGENT TROUGH ALONG 71W OFF THE COAST OF COLOMBIA ACTING AS A FOCUS FOR PERSISTENT DEEP TSTMS TODAY. THIS PATTERN WILL CONTINUE THROUGH THU BEFORE THE TROUGHING IN THE W CARIB EXPANDS NE TO HISPANIOLA AND THE MONA PASSAGE TO PRODUCE SLY FLOW ACROSS THE CARIB E OF 68W...AND MONSOONAL SW FLOW OF 10-15 KT FROM THE SW CARIB INTO HISPANIOLA. TROPICAL WAVES AND THEIR ASSOCIATED WEATHER NOW TAKING A MORE NW TRACK AS THE APPROACH THE CARIB AND ADVECTING NW TO THE NRN CARIB AND WILL BEGIN TO AFFECT THE GREATER ANTILLES NEXT FEW DAYS. WARNINGS... ATLC... .NONE. CARIBBEAN... .NONE. GULF OF MEXICO... .NONE. FOR ADDITIONAL INFORMATION PLEASE VISIT HTTP://WWW.HURRICANES.GOV/MARINE $$ FORECASTER STRIPLING