These powerful tropical storms are generally becoming more intense as the world warms.

The rare highest-strength storm is set to hit Jamaica by Tuesday, having already caused two deaths in Haiti.

Hurricane Melissa strengthened into a major Category 4 hurricane, with the possibility of intensifying to a Category 5 storm Sunday night.

Hurricane Melissa has strengthened into a major Category 4 hurricane, with the possibility of intensifying to a Category 5 storm.

Hurricane Melissa has strengthened into a major Category 4 hurricane, with the possibility of intensifying to a Category 5 storm.

Climate scientists have long warned that warming oceans are making such explosive storm development more common

Increasingly warm oceans resulting from global warming are a key reason for Hurricane Melissa's wind speed doubling in less than 24 hours over the weekend, climate scientists have…

If it strikes Jamaica at close to full strength, it could eclipse all storms the island has experienced before.

These powerful tropical storms are generally becoming more intense as the world warms.