South Florida is bracing for extreme temperatures. A heat advisory is in effect for Miami-Dade and Broward counties. The region's heat index is expected to reach high levels.

Temperatures are forecast to be very high, potentially reaching 100 degrees. This heat wave is part of a larger pattern affecting the southern United States, with many Americans under heat alerts. Further information is available from local news sources, including details on the duration of the heat wave and any potential relief from the high temperatures.