From the National Hurricane Center:
1. 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.