The National Hurricane Center is tracking Invest99L as it moves over the central Caribbean Sea and gives the tropical rainstorm a 90% chance of developing into a tropical depression in the next two days.

The National Hurricane Center began advisories Wednesday on a system it forecasts to become the season’s next tropical depression or storm. Long-range forecast models predict it will intensify into a hurricane and threaten Florida by the middle of next week.

The National Hurricane Center is tracking weakening Tropical Storm Rafael in the Gulf of Mexico. A disturbance in the Caribbean could develop later this week