Potential Tropical Cyclone Nine formed in the Caribbean on Monday morning and was expected to strengthen into a hurricane as it makes its way into the Gulf of Mexico, forecasters said.

Helene is expected to form this week as Potential Tropical Cyclone Nine moves across the Caribbean Sea and the Gulf of Mexico, according to the National Hurricane Center. In addition, the NHC is also monitoring a tropical wave that is expected to move from the African coast.

The National Hurricane Center is now issuing advisories for Potential Tropical Cyclone Nine. This is a tropical wave over the northwestern Caribbean that is slowly drifting north. Initial forward motion is still hard to define considering its lack of organization right now.