Melissa is forecast to rapidly intensify into a major hurricane and bring life-threatening rainfall, landslides and storm surge to Jamaica, Haiti and elsewhere.

By early next week, we might be talking about a Category 5 hurricane, but widespread flooding is going to be the most impactful threat from Melissa. Here's how bad it could get in Haiti and Jamaica.

Tropical Storm Melissa was nearly stationary in the central Caribbean on Friday, with forecasters warning that it could strengthen and swipe Jamaica as a powerful hurricane and dump a staggering amount of rain -- up to 35 inches -- on southwest Haiti,