Melissa is forecast to eventually become a hurricane. It's also likely to be a slow mover into next week. Here's what the means as far as potential impacts are concerned.

The National Hurricane Center is tracking a tropical wave in the central Atlantic which is moving quickly toward the Caribbean. There also is a non-tropical system over the northwestern Atlantic — well away from Florida — that may develop into a tropical or subtropical storm over the next several days, according to AccuWeather.

A broad area of low pressure will likely form over the southwestern Caribbean Sea in a few days. Some slow development is possible late this week while the system drifts westward. A tropical depression could form late this week or this weekend as it moves ...

Warm conditions are expected to linger in the Caribbean Sea in the coming weeks, while the Southern Hemisphere also transitions out of winter and into warmer spring temperatures. All told, it may be the start of what's known as a global bleaching event, Manzello said, which is characterized by widespread coral bleaching in all three ocean basins: the Atlantic, the Pacific and the Indian.