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.

Hurricane Melissa has rapidly intensified into a Category 5 hurricane as it nears Jamaica, signaling a major escalation in the 2025 Atlantic hurricane season.

“This extreme rainfall potential, owing to the slow motion, is going to create a catastrophic event here for Jamaica," NHC Deputy Director Jamie Rhome said in a webcast briefing.