Heat advisory in effect for South Florida
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At 2:08 p.m. on Monday, the National Weather Service released a heat advisory in effect until Tuesday at 9 p.m. for Lauderdale, Colbert, Franklin, Lawrence, Limestone, Madison, Morgan and Cullman counties.
The heat index considers the actual temperature and amount of moisture in the air using the dew point or relative humidity.
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TCPalm on MSNWhat is heat index today? Triple-digits prompt heat advisory on Florida's Treasure Coast
A heat advisory for Florida's Treasure Coast is in effect from noon through 6 p.m., with heat index values from 109 to 112 possible.
The National Weather Service issued Extreme Heat Watches and Flood Advisories throughout Illinois. Here's the forecast.