Latest on the tropicsThe National Hurricane Center is tracking three areas of interest as we enter the final month of hurricane season. Sign up for our NewslettersPTC 18 in the western Caribbean SeaPotential Tropical Cyclone 18 is a broad area of low pressure in the South Central Caribbean Sea.

A tropical disturbance in the Caribbean Sea, now known as Potential Tropical Cyclone 18, is likely to become Tropical Storm Rafael by Monday and is forecast to become a hurricane later this week, the National Hurricane Center said Sunday night.

The National Hurricane Center has issued advisories for Potential Tropical Cyclone 18, an area of disorganized showers and thunderstorms in the Caribbean Sea.A