000 AGXX40 KNHC 180721 MIMATS MARINE WEATHER DISCUSSION NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 320 AM EDT FRI JUN 18 2010 MARINE WEATHER DISCUSSION FOR GULF OF MEXICO...CARIBBEAN SEA AND TROPICAL N ATLC FROM 07N TO 22N BETWEEN 55W AND 65W...AND SOUTHWEST NORTH ATLC S OF 31N W OF 55W GULF OF MEXICO... HIGH PRES AND ANTICYCLONIC FLOW WILL PREVAIL ACROSS THE GULF THROUGH THE FORECAST PERIOD. AS A RESULT...LIGHT TO MODERATE BREEZE WILL PERSIST THROUGHOUT THE BASIN. WIND DIRECTION ACROSS THE E GULF WILL BE NE TO E...AND ACROSS THE W GULF WILL BE E TO SE. CARIBBEAN SEA AND TROPICAL N ATLC... ATLC RIDGE N OF AREA WILL MAINTAIN MODERATE E BREEZE THROUGH THE BASIN WITH TROPICAL WAVE PRESENTLY ALONG 75W ENHANCING WINDS OVER THE SW CARIBBEAN THROUGH SAT NIGHT. AS THE WAVE SHIFTS E OF THE AREA...TRADES WILL WEAKEN SUN AND MON. AN ACTIVE TROPICAL WAVE OVER THE TROPICAL ATLANTIC WATERS E OF THE LEEWARD ISLANDS WILL MOVE W OF THE TROPICAL ATLANTIC WATERS TODAY. THE SOUTHERN PORTION OF THE WAVE WILL AFFECT THE N PART OF THE CARIBBEAN AS IT MOVES W THROUGH THE PERIOD. A LOW LEVEL TROUGH NEAR 50W WILL MOVE ACROSS THE SOUTHERN PORTION OF THE AREA TONIGHT THROUGH SAT NIGHT. THIS WILL BRING A LOCALLY TIGHTER PRESSURE GRADIENT AND A WIND SURGE S OF 15N THROUGH THAT TIME. MEANWHILE...LONG FETCH ON THE SOUTHERN PERIPHERY OF ATLC HIGH PRES WILL KEEP MODERATE E SWELLS IMPACTING THE TROPICAL ATLC FROM TONIGHT THROUGH MON. SW N ATLC... AN ACTIVE TROPICAL WAVE OVER THE TROPICAL ATLANTIC WATERS E OF THE LEEWARD ISLANDS WILL MOVE INTO THE SOUTHERN PORTION OF THE SW N ATLC TODAY...CROSSING PUERTO RICO TONIGHT...HISPANIOLA SAT THROUGH SUN NIGHT...REACHING E CUBA ON MON...THEN CENTRAL CUBA TUE. THE WAVE WILL BRING AN INCREASE IN WINDS ACROSS THE SOUTHERN PORTION OF THE AREA AS IT MOVES W. IN THE NORTHERN PART OF THE AREA...ATLC RIDGE WILL STRETCH ALONG 27N TODAY...THEN WILL SHIFT N TO ALONG 30N SAT AND SUN...THEN ALONG 31N THE REMAINDER OF THE FORECAST PERIOD. WARNINGS... ATLC... .NONE. CARIBBEAN... .NONE. GULF OF MEXICO... .NONE. FOR ADDITIONAL INFORMATION PLEASE VISIT HTTP://WWW.HURRICANES.GOV/MARINE $$ FORECASTER AL