Melissa is expected to strengthen from a tropical storm into a major hurricane and bring "catastrophic" flash flooding and landslides to Jamaica, Haiti and the Dominican Republic

Tropical Storm Melissa is nearly stationary in the central Caribbean, with forecasters warning it could soon strengthen and brush past Jamaica as a powerful hurricane.

Melissa is currently the only active tropical system in the Atlantic basin. As of Friday night, the storm remains nearly stationary, drifting north at just 2 mph. Maximum sustained winds are around 65 mph—just below the 75 mph threshold needed to reach Category 1 hurricane status.

Tropical Storm Melissa is set to intensify this weekend, and Jamaica and other Caribbean islands are bracing for harsh weather, forecasters with the National Hurricane Center in Miami said Thursday morning.

The National Hurricane Center on Saturday tracked a Caribbean-bound system with a medium chance to develop into the season’s next tropical depression or storm.

All eyes will be on the Caribbean Sea for possible tropical development next week. The area currently has a 60% chance of development next week.