Street flooding is being reported in several areas. Roads in Largo are underwater and there are reports of stranded vehicles along Vonn Road, north of Walsingham. Water is also reportedly rising in the nearby Autumn Chase apartment complex.
Further north, some streets were being closed in Clearwater Beach as water rose there. High tide in the Clearwater area is at noon, which could enhance the risk of flooding.
In Hillsborough, many of the usual low-lying areas of South Tampa were also seeing water in the streets.
Forecasters say parts of the Bay Area could see up to 10 inches of rain before Tropical Depression Nine makes landfall along the Big Bend area of the state tomorrow night. Coastal areas will see not only the heaviest rain, but also some flooding as the storm blows water in from the gulf.
Most Bay Area counties are making sandbags available.
Meanwhile, the governor issued a state of emergency for 42 counties ahead of the storm's landfall, and classes are canceled Thursday for Hillsborough, Pinellas, Hernando, and Manatee counties.