NEW : Haiti , the U.S. Virgin Islands and St. Kitts , Nevis , Montserrat and Antigua were under a tropical storm watch . Tropical storm warnings are in effect for Puerto Rico , the Dominican Republic , elsewhere . Haiti is under a tropical storm watch . Tropical storm force winds extend outward up to 70 mph . The National Hurricane Center predicts Emily could threaten Florida by the evening .
NEW : Tropical storm warnings are in effect for Puerto Rico , the Dominican Republic , elsewhere . Haiti is under a tropical storm watch . Tropical storm force winds extend outward up to 70 mph . The National Hurricane Center predicts Emily could threaten Florida by the evening .