Heavy rains are forecast to fall further north along the U.S. East Coast later in the week, with a "marginal" risk of excessive rainfall, enough to cause isolated flash flooding, over the Appalachians and portions of the Ohio and Tennessee valleys on the evening of Oct. 29 and morning of Oct. 30.

Category 5 Hurricane Melissa made landfall on Jamaica Tuesday morning as the most powerful hurricane to ever strike the island, as well as the third-strongest hurricane ever recorded in the Atlantic.

“Many have never experienced anything like this before, and the uncertainty is frightening,” he said.