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A Sunday heat advisory (and rain chances) for Miami, Fort Lauderdale and Palm Beach

Miami, Fort Lauderdale, the Palm Beaches and the rest of Florida’s lower third will roast through another heat advisory Sunday, according to the National Weather Service’s forecast.

The NWS issued a heat advisory that’ll run until 7 p.m. and involves Tampa, St. Petersburg, Bradenton, Fort Myers and Naples on Florida’s Gulf Coast, Lakeland and the Villages in Central Florida, and on down to mainland Monroe County.

Heat Index values are expected to reach 110 degrees,” the NWS said.

The heat index takes the base temperature — forecast to peak at 92 or 93 degrees, depending where you are in South Florida — and factors in the humidity. As of 9:50 a.m., the temperature at Miami International Airport was 88 degrees, and 73% humidity pushed the heat index to 102 degrees.

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READ MORE: Miami-Dade takes landmark step toward protecting outdoor workers in dangerous heat

The usual warnings should be heeded:

Generally, it’s best to stay inside with indoor cooling mechanisms (air conditioner, electric fan, ceiling fan).

If you want to be outside or have to be outside, periodically drink water or some hydrating fluid, even if you don’t feel thirst.

Wear loose clothing if you go outside. Dri-Fit shirts? Use ‘em if you’ve got ‘em.

If you’re working outside, shade breaks and continuous hydration are a must.

Don’t leave anything living (pets included) in a turned-off car with the windows rolled up.

READ MORE: Red Lobster and Anthony’s Coal Fired Pizza among Miami to Palm Beach restaurant filth

The map showing the chunk of Florida covered by the Sunday, Aug. 6, Heat Advisory.
The map showing the chunk of Florida covered by the Sunday, Aug. 6, Heat Advisory.

Rain relief?

This being summer in South Florida, rain’s usually a probability, not just a possibility. But don’t bet on it Sunday from Miami-Dade to Palm Beach.

As of 9:30 a.m., the NWS put the chances of rain at 40% for West Palm Beach, Fort Lauderdale-Hollywood International Airport, Miami International Airport, Little Havana, Coral Gables and Kendall, and only 30% for Miami Beach.