000 AGXX40 KNHC 201853 MIMATS MARINE WEATHER DISCUSSION NWS NATIONAL HURRICANE CENTER MIAMI FL 300 PM EDT MON JUN 20 2011 GULF OF MEXICO... RIDGE OF HIGH PRES WILL CONTINUE OVER THE NORTHERN GULF THROUGH TUE. THE RIDGE WILL THEN SHIFT N OF THE AREA BY TUE NIGHT. SE TO S RETURN FLOW WILL CONTINUE OVER THE FAR NW GULF THROUGH THE FORECAST PERIOD. A TROPICAL WAVE OVER THE SW GULF OF MEXICO WILL MOVE INTO EASTERN MEXICO ON TONIGHT. THE TROPICAL WAVE HAS INCREASED THE SLY WINDS OVER THE WESTERN HALF OF THE GULF. THESES WINDS WILL CONTINUE THROUGH WED THEN DECREASE THU. ATLC RIDGE STRENGTHENS SOME ON SAT...THIS COMBINED WITH LOWER PRES OVER MEXICO INCREASES THE WINDS TO 20-25 KT ACROSS THE SW GULF ON SAT. SW N ATLC... RIDGE OF HIGH PRES WILL PREVAIL ALONG 27N FOR MUCH OF THE FORECAST PERIOD. WINDS WILL INCREASE OVER THE N PORTION OF THE AREA SPREADING W TO E A COLD FRONT N OF THE AREA COMBINED WITH THE RIDGE TIGHTENS THE PRES GRADIENT. THE WINDS DECREASE THU AS THE FRONT MOVES FURTHER TO THE NE. OTHERWISE LIGHT WINDS WILL CONTINUE OVER THE REMAINDER OF AREA THROUGH SAT THE ONLY EXCEPTION WILL BE THAT THE WINDS INCREASE TO 15-20 KT OVER THE SE PORTION OF THE AREA FRI AND SAT AS A TROPICAL WAVE IN THE MOVES THROUGH THE CARIBBEAN. CARIBBEAN AND TROPICAL N ATLC W OF 55W... TROPICAL WAVE IN THE EASTERN CARIBBEAN WILL CONTINUE TO MOVE W THROUGH THE CENTRAL CARIBBEAN TONIGHT THROUGH TUE AND THROUGH THE WESTERN CARIBBEAN WED THROUGH THU THE W OF THE AREA FRI. A SECOND TROPICAL WAVE WILL MOVE INTO THE TROPICAL N ATLC WED INTO THE EASTERN CARIBBEAN THU REACHING THE CENTRAL CARIBBEAN FRI AND SAT. A THIRD TROPICAL WAVE WILL APPROACH THE TROPICAL N ATLC FRI NIGHT. THE COMBINATION OF THE TROPICAL WAVES AND A TIGHT PRES GRADIENT OVER THE CARIBBEAN WILL RESULT IN MODERATE TO STRONG WINDS OVER MUCH OF THE AREA THROUGH THE FORECAST PERIOD. WARNINGS... ATLC... .NONE. CARIBBEAN... .NONE. GULF OF MEXICO... .NONE. FOR ADDITIONAL INFORMATION PLEASE VISIT HTTP://WWW.HURRICANES.GOV/MARINE $$ FORECASTER DGS