The heat index considers the actual temperature and amount of moisture in the air using the dew point or relative humidity.

A heat advisory has been issued for Miami-Dade and Broward counties for Monday and will be in effect noon to 6 p.m. South ...

All of Florida will be under heat advisories Monday, July 21, as a heat dome spreads from the Ohio and Mississippi valleys.

A heat advisory is in effect from noon until 8 p.m. Heat indices will soar up to 108° this afternoon. Isolated to scattered showers & storms are likely. Any storm that develops could produce wind ...