Jamaica and southern Hispaniola are expected to see life-endangering and catastrophic flash flooding soon as the sluggish, behemoth Hurricane Melissa hit a dangerous Category 4 status on Sunday mornin

Forecasters say Melissa poses little to no risk for Florida and the U.S. at this time.

“If those rains were to occur, you’re talking about catastrophic flooding potential,” said Jamie Rhome, the center’s deputy director.