In a tweet , Miami Beach Police advised residents and visitors that the Labor Day holiday was "NOT a beach day," with rough surf and potential rip currents.
"Stay indoors, do not drive unless absolutely necessary," the police advised, adding that the rainy weather offered an opportunity to "stay in and chill" and binge-watch a TV series.
In Tallahassee, city officials offered sandbags to help homeowners prepare for potential flooding.
Red flags flew over Pensacola-area beaches in Florida's Panhandle, where swimming and wading in the Gulf of Mexico was prohibited.
The National Weather Service said Naples, Marco Island, and Everglades City also could expect hazardous weather on Monday.
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