A STRONG TROPICAL WAVE OVER THE CENTRAL CARIBBEAN SEA IS PRODUCING A LARGE AREA OF DISORGANIZED SHOWERS AND THUNDERSTORMS OVER PORTIONS OF THE CENTRAL CARIBBEAN AND THE ADJACENT LAND AREAS. UPPER-LEVEL WINDS APPEAR TO BE CONDUCIVE FOR GRADUAL DEVELOPMENT AND A TROPICAL DEPRESSION COULD FORM DURING THE NEXT COUPLE OF DAYS. REGARDLESS OF DEVELOPMENT...LOCALLY HEAVY RAINFALL AND GUSTY WINDS ARE POSSIBLE OVER PORTIONS OF PUERTO RICO...THE DOMINICAN REPUBLIC... HAITI...AND JAMAICA DURING THE NEXT DAY OR SO AS IT MOVES WEST-NORTHWESTWARD AT ABOUT 10 MPH. THERE IS A MEDIUM CHANCE...40 PERCENT...OF THIS SYSTEM BECOMING A TROPICAL CYCLONE DURING THE NEXT 48 HOURS.