000 AGXX40 KNHC 191749 MIMATS MARINE WEATHER DISCUSSION NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 200 PM EDT MON JUL 19 2010 MARINE WEATHER DISCUSSION FOR THE GULF OF MEXICO...CARIBBEAN SEA AND SOUTHWEST NORTH ATLC S OF 31N W OF 55W. GULF OF MEXICO... THE NORTHERN PORTION OF A TROPICAL WAVE IS IN THE MIDDLE GULF ALONG 88W. SCATTERED SHOWERS AND TSTMS ARE MAINLY E OF THE WAVE AXIS EXTENDING INTO THE E GULF WATERS. THE WAVE WILL MOVE INTO THE SW GULF TONIGHT THEN WILL MOVE INLAND OVER EASTERN MEXICO TUE. ANOTHER TROPICAL WAVE EXTENDS INTO THE STRAITS OF FLORIDA WITH ADDITIONAL SHOWERS AND TSTMS OCCURRING THERE. E-SE WINDS OF 15-20 KT CONTINUE TO BE FUNNELED THROUGH THE STRAITS N OF CUBA AND INTO THE SE WATERS. OTHERWISE E-SE WINDS OF 10-15 KT WILL EXIST ACROSS THE MAJORITY OF THE REMAINDER OF THE GULF THROUGH THE PERIOD. SEAS WILL BUILD ACROSS THE MIDDLE AND W GULF BY MID WEEK AS E-SE SWELL PROPAGATES WESTWARD FROM THE SE GULF. CARIBBEAN SEA AND TROPICAL N ATLC... A TROPICAL WAVE IS IN THE W CARIBBEAN EXTENDING FROM CENTRAL CUBA TO JUST E OF NICARAGUA. SCATTERED SHOWERS AND TSTMS ARE OCCURRING ACROSS THE W CARIBBEAN. THIS FEATURE WILL MOVE TO THE FAR NW CARIBBEAN NEAR THE YUCATAN CHANNEL BY EARLY TUE THEN NW OF THE AREA BY TUE AFTERNOON. ANOTHER TROPICAL WAVE IS IN THE E CARIBBEAN ALONG 66W EXTENDING NORTH OF THE AREA ACROSS PUERTO RICO. THE MAJORITY OF THE CONVECTION ASSOCIATED WITH THE WAVE REMAINS CONCENTRATED OVER THE FAR NE CARIBBEAN AND INTO THE SW N ATLC. EXPECT PERIODS OF HEAVY RAINFALL...LIGHTNING AND SQUALLS ACROSS PUERTO RICO AND THE NE CARIBBEAN ISLANDS SPREADING WESTWARD TO HISPANIOLA TONIGHT AND TUE. MEANWHILE E-SE 20 KT WINDS AND SEAS OF 8-10 FT ARE OCCURRING N OF 18N IN THE TROPICAL N ATLC WATERS. WINDS WILL DIMINISH TO 10-15 KT WED THROUGH FRI WITH SEAS SUBSIDING TO 5-7 FT OVER THE NORTHERN PORTION AND REMAINING 4-6 FT OVER THE SOUTHERN PORTION. THIS WAVE WILL MOVE TO THE W DOMINICAN REPUBLIC ALONG 71W TUE...OVER WESTERN HAITI AND THE WINDWARD PASSAGE WED...OVER EASTERN CUBA AND JAMAICA THU...THEN OVER CENTRAL CUBA AND THE CAYMAN ISLANDS FRI. THE STRONGEST WINDS AND HIGHER SEAS...AS WELL AS THE MAJORITY OF THE SHOWERS AND TSTMS ARE EXPECTED TO REMAIN N OF THE CARIBBEAN. A THIRD TROPICAL WAVE CURRENTLY WELL E OF THE AREA IS EXPECTED TO MOVE INTO THE TROPICAL N ATLC WATERS REACHING ALONG 57W BY MIDDAY FRI. SW N ATLC... A RIDGE OF HIGH PRES ALONG 30N WILL LIFT N OF THE AREA TONIGHT THROUGH FRI. THE NORTHERN PORTION OF A TROPICAL WAVE IS IN THE FAR SE WATERS WITH NUMEROUS SHOWERS AND TSTMS OCCURRING N OF PUERTO RICO. THIS WAVE WILL REACH THE TURKS AND CAICOS WED...THE CENTRAL BAHAMAS THU...AND THE NW BAHAMAS FRI. THERE IS A LOW CHANCE OF THIS AREA BECOMING A TROPICAL CYCLONE DURING THE NEXT 48 HOURS. E-SE 20 KT WINDS WILL PERSIST OVER THE SOUTHERN PORTION OF THE AREA THROUGH THE PERIOD INCREASING TO 20-25 KT TUE NIGHT AND WED THEN DECREASING TO 15-20 KT THU AND FRI. SEAS WILL BUILD TO 8-12 FT E OF THE BAHAMAS TUE NIGHT AND WED THEN WILL SUBSIDE TO 5-7 FT BY FRI. THIS SE SWELL CONTINUE TO PROPAGATE INTO THE NORTHERN PORTION WITH SEAS OF 4-7 FT N OF 27N THROUGH THE PERIOD. WARNINGS... ATLC... .NONE. CARIBBEAN... .NONE. GULF OF MEXICO... .NONE. FOR ADDITIONAL INFORMATION PLEASE VISIT HTTP://WWW.HURRICANES.GOV/MARINE $$ FORECASTER LEWITSKY