Tropical Storm Melissa is less than 200 miles southeast of Jamaica, moving at 1 mph, with wind speeds around 45 mph.

The slow-moving Melissa strengthened into a major Category 3 hurricane late Saturday as it threatened catastrophic flooding in the northern Caribbean.

A hurricane warning is in place for Jamaica, and the NHC said life-threatening and catastrophic flash flooding and landslides are expected in portions of southern Hispaniola and Jamaica into early ne...