000 AGXX40 KNHC 171822 MIMATS MARINE WEATHER DISCUSSION NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 220 PM EDT THU JUL 17 2008 MARINE WEATHER DISCUSSION FOR GULF OF MEXICO...CARIBBEAN SEA AND SOUTHWEST NORTH ATLC S OF 31N W OF 55W. CARIBBEAN AND TROPICAL N ATLC W OF 55W... TWO WELL DEFINED TROPICAL WAVES REMAIN THE BIG WEATHER MAKERS IN THE CARIBBEAN IN THE FORECAST. THE FIRST SYSTEM IS MOVING THROUGH THE WESTERN CARIBBEAN ALONG 82W WITH ASSOCIATED SFC LOW NEAR 14N82W. BUOY 42057 REPORTED E WINDS OF 25 KT OVER THE PAST HOUR. THE WINDOW FOR TROPICAL CYCLONE DEVELOPMENT IS CLOSING AS THE LOW APPROACHES THE COAST OF NICARAGUA. IN ANY EVENT E TO SE WINDS OF 20-25 KT...POSSIBLY 30 KT WILL SPREAD ACROSS THE NW CARIBBEAN AND GULF OF HONDURAS TONIGHT INTO FRI NIGHT AS THE WAVE TRACKS WWD OVER CENTRAL AMERICA. THE SECOND WAVE IS MOVING ACROSS THE EASTERN CARIBBEAN ALONG 65W/66W ALONG WITH AN ASSOCIATED 1009 MB LOW NEAR 13N65W. BUOY 42059 RECENTLY REPORTED NE WINDS OF 20KT AND SEAS BUILDING TO 8 FT. AN EARLIER QUIKSCAT PASS INDICATED NE WINDS OF 25-30 KT OVER THE E CARIBBEAN HOWEVER SOME OF THIS MAY BE RAIN CONTAMINATED. ONCE AGAIN RECONNAISSANCE AIRCRAFT IS SLATED TO INVESTIGATE THE SYSTEM WITHIN THE NEXT FEW HOURS. FURTHER DEVELOPMENT IS POSSIBLE OVER THE NEXT 48 HOURS AS THE FEATURE MOVES INTO THE CENTRAL CARIBBEAN. THE WAVE WILL REACH 80W BY EARLY SAT THEN MOVE INTO NICARAGUA BY LATE SAT. MEANWHILE A THIRD TROPICAL WAVE WILL APPROACH THE LESSER ANTILLES BY SAT NIGHT..THE CENTRAL CARIBBEAN MON AND W CARIBBEAN TUE. SW N ATLC... WEAK RIDGE OF HIGH PRESS DOMINATES MOST OF THE SW N ATLC WITH A 1020 MB CENTER NEAR 27N72W. LOW PRESS OFF THE FL NE COAST NEAR 30.5N80.5W IS DRAWING INCREASING ATTENTION IN THE FORECAST. SYSTEM IS SLATED TO MOVE SLOWLY N OF THE AREA...GENERALLY ALONG THE GEORGIA/CAROLINA COAST. THE LOW IS BEING MONITORED FOR POSSIBLE TROPICAL DEVELOPMENT AND DEPENDING ON ITS EVOLUTION... THE FORECAST FOR THE EXTREME NW PORTION OF THE AREA MAY HAVE TO BE ADJUSTED ACCORDINGLY. ONLY OTHER AREA OF NOTE IS A SWATH OF NW WINDS SKIRTING THE NE PORTION OF THE AREA ON THE BACKSIDE OF T.S. BERTHA. THE WINDS WILL EXIT THE AREA TONIGHT WITH SOME RESIDUAL 6-7 FT SEAS. ELSEWHERE LIGHT WINDS PREVAIL WITH LITTLE CHANGE THROUGH TUE. THE ONLY EXCEPTION ARE ENHANCED TRADES JUST N OF HISPANIOLA AS TROPICAL WAVES TRACK TO THE S IN THE CARIBBEAN. GULF OF MEXICO... LIGHT PRES PATTERN CONTINUES WITH 1018 MB HIGH PRES OVER THE NW GULF...AND 1015 MB LOW PRES NEAR 25N87W. NOT ENOUGH OF A PRES GRADIENT TO PRODUCE ANYTHING BUT LITE TO MODERATE WINDS OUTSIDE OF CONVECTION. LIGHT TO MODERATE EASTERLY FLOW IS EXPECTED ACROSS MOST OF THE GULF INTO SAT. THE TROPICAL WAVE TO THE SOUTH OF THE AREA ALONG 82W WILL ALLOW WINDS OVER THE BAY OF CAMPECHE TO INCREASE LATE FRI AND SAT. ANOTHER WAVE IS SLATED TO MOVE S OF THE AREA SUN AND MON WITH INCREASING WINDS OVER A LARGER PORTION OF THE GULF SUN THROUGH TUE. WARNINGS... ATLANTIC... NONE. CARIBBEAN... NONE. GULF OF MEXICO... NONE. .FORECASTER COBB. TROPICAL PREDICTION CENTER.