Tropical Storm Ian remains forecast to rapidly intensify and become a hurricane sometime Monday, according to the National Hurricane Center. Forecasters warn that Florida — especially the western Gulf coast, including Tampa Bay up to the Panhandle — should continue to monitor Ian's progress.

As of the 5 p.m. Sunday advisory, Tropical Storm Ian was located about 220 miles south-southeast of Grand Cayman, with sustained winds of 45 mph. Ian's movement is west-northwest at 12 mph.

The NOAA hurricane hunters surveillance jet earlier this morning found Tropical Storm Ian continuing to organize over the central Caribbean.

A hurricane warning is in effect for Grand Cayman and the Cuban provinces of Isla de Juventud, Pinar del Rio, and Artemisa. A tropical storm warning is in effect for the Cuban provinces of La Habana, Mayabeque, and Matanzas.

A tropical storm watch is in effect for Little Cayman and Cayman Brac. The lower Florida Keys from Seven Mile Bridge southward to Key West and the Dry Tortugas also are under a watch.

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