Tropical Storm Melissa dumped heavy rain on Hispaniola as forecasters warned Wednesday of a significant flood risk in parts of the Caribbean region in the coming days. The rains snarled traffic in the Dominican Republic’s capital,

Tropical Storm Melissa began dumping heavy rain on Hispaniola on Tuesday as forecasters warned of a significant flood risk in parts of the Caribbean region later this week.

"The longer Melissa tracks to the west, the greater the chance of an impact on the U.S.," AccuWeather Chief Meteorologist Bernie Rayno said.