000 AGXX40 KNHC 091656 MIMATS MARINE WEATHER DISCUSSION NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 100 PM EDT MON JUN 09 2008 MARINE WEATHER DISCUSSION FOR GULF OF MEXICO...CARIBBEAN SEA AND SOUTHWEST NORTH ATLC S OF 31N W OF 55W. GULF OF MEXICO...ATLC RIDGE EXTENDS ALMOST DUE W ACROSS FL OVER THE NE GULF COASTAL PLAINS WITH WINDS AT 5 TO 10 KT ALONG RIDGE AXIS E OF 88W. THE RIDGE AXIS IS EXPECTED TO SHIFT SLOWLY S TO A PSN FROM TAMPA TO MISSISSIPPI DELTA FRI NIGHT. THE NORTHERN EXTENSION OF TROPICAL WAVE IS MOVING THROUGH THE BAY OF CAMPECHE ATTM AND SHOULD MOVE W OF AREA TONIGHT. ASSOCIATED CONVECTION IS ISOLATED AT BEST AND CONCENTRATED S OF 21N. AN UPPER CYCLONE IS MOVING ACROSS S FL ATTM WITH CONVECTION ENHANCED MOSTLY OVER ITS E SEMICIRCLE...WHICH IS CURRENTLY S OF 27N E OF 83W. OTHERWISE... SE RETURN FLOW EXPECTED TO FLUCTUATE AT 15-20 KT ALONG A SWATH CENTERED FROM YUCATAN CHANNEL TO E TX THROUGH REMAINDER OF THE WEEK. ATLC AND CARIBBEAN...HIGH PRES 1019 MB 30N74W ATTM EXPECTED TO BASICALLY MEANDER IN THE SAME AREA `THROUGH THROUGH WEEK. VARIABLE WINDS 5-10 KT EXPECTED OVER THE WATERS N OF 27N THROUGH PERIOD. SOME RESIDUAL NE SWELL STILL MAINTAINING COMBINED SEAS AT 3-5 FT OVER THE WATERS SW OF BERMUDA BUT EXPECTED TO SUBSIDE TO A MAX OF 3 FT BY THE WEEKEND. LATEST GUIDANCE NOT AS AGGRESSIVE WITH FREQUENCY OF SW WINDS INCREASING TO 15 TO 20 KT ALONG COAST OF NE FL AND SE GA TILL SAT NIGHT. NE TO E WINDS S OF RIDGE EXPECTED TO CHANGE LITTLE THROUGH END OF WEEK. AN UPPER CYCLONE IS PASSING WNW ACROSS S FL ATTM AND TRAILING UPPER MOISTURE ACROSS THE ENTIRE BAHAMIAN CHAIN WITH TSTMS ENHANCED BETWEEN ANDROS ISLAND AND THE CAY SAL BANK ATTM. SEEMS LIKE THIS CYCLONE IS FILLING WITH TIME AND GENERALLY MOVING INTO A LONG WAVE RIDGE. REMNANTS OF THIS CYCLONE COULD CONTINUE TO PLAY A PART IN THE PRECIP FORECAST FOR THE SE CONUS FOR THE NEXT FEW DAYS...PLENTY OF UNCERTAINTY. A TROPICAL WAVE IN THE CENTRAL CARIBBEAN IS ASSOCIATED WITH A EASTERLY SPEED MAXIMUM THAT HAS CONFUSED THE POSITIONING OF THE WAVE AXIS AND THE AXIS WAS POSITIONED MUCH FURTHER W ON A PREVIOUS ANALYSIS. IN ANY EVENT EXPECTING E TRADES TO CHANGE LITTLE TILL A SECOND WAVE IN THE CENTRAL ATLC ALONG 46N THIS MORNING...MOVES W TO ALONG 55W LATE TUE NIGHT...INTO E CARIBBEAN LATE WED...ALONG 65W FRI AND ALONG 70W SAT. OTHERWISE...BERMUDA HIGH WELL N OF AREA WILL MAINTAIN FRESH E TRADES WITH THE NORMAL 20-25 KT FLUCTUATIONS ALONG COLOMBIAN COAST. WARNINGS... ATLANTIC... NONE. CARIBBEAN... NONE. GULF OF MEXICO... NONE. .FORECASTER NELSON. TROPICAL PREDICTION CENTER.