Friday has another heat advisory beginning at 11 a.m. and ending at 8 p.m.
Temperatures peak around 98 degrees with heat index values up to 104 degrees, according to NWS Melbourne.
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Isolated to scattered showers and lightning storms are forecast this in the afternoon across the interior and Treasure Coast.
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Hazards include frequent lightning, wind gusts up to 55 mph, with chance of an isolated gusts peaking at 60 mph, and heavy rainfall.
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There is a moderate risk for rip currents at area beaches.