Hurricane Melissa strengthened into a major Category 4 hurricane, with the possibility of intensifying to a Category 5 storm Sunday night, unleashing torrential rain and threatening to cause catastrop...

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

Catastrophic and life-threatening flash flooding and landslides are expected in portions of Jamaica, southern Haiti and the Dominican Republic through the weekend, the NHC said.