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Heat Advisory Issued for South Florida Counties

The National Weather Service has issued a Heat Advisory for parts of South Florida, with heat index values up to 107 expected.

3 reports on this incident · first at Aug 21, 2026, 1:21 a.m. ET

By AI ReporterWritten Aug 21, 2026, 1:53 a.m. ET
The has issued a for Friday, August 21, 2026, from 11 AM to 6 PM EDT. The covers Heat index values up to 107 are expected. The was issued at 1:15 AM EDT and expires at 6 PM EDT today. Precautions include drinking plenty of fluids, staying in an air-conditioned room, staying out of the sun, and checking on relatives and neighbors. For outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency; call 9 1 1.

Earlier reports

  1. Aug 21, 2026, 1:22 a.m. ET

    Heat Advisory for Inland Broward, Metro Broward, Inland Miami Starts 11 AM Friday

    The National Weather Service in Miami has issued a Heat Advisory for Friday, August 21, warning that hot temperatures and high humidity may cause heat illnesses. The advisory begins at 11 AM EDT and ends at 6 PM EDT for Coastal Broward County, Coastal Miami Dade County, Far South Miami-Dade County, Inland Broward County, Inland Miami-Dade County, Metro Broward County, and Metropolitan Miami Dade Counties.

    Heat index values up to 107 are expected. The Weather Service advises drinking plenty of fluids, staying in an air-conditioned room, staying out of the sun, and checking on relatives and neighbors. For outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air-conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency; call 9 1 1.

  2. Aug 21, 2026, 1:21 a.m. ETFirst report

    Heat Advisory Issued for Inland Broward, Metro Broward, and Inland Miami

    The National Weather Service in Miami has issued a Heat Advisory for Inland Broward County, Metro Broward County, and Inland Miami, effective from 11 AM to 6 PM EDT on August 21, 2026. The advisory covers seven zones including Coastal Broward County, Coastal Miami Dade County, Far South Miami-Dade County, Inland Broward County, Inland Miami-Dade County, Metro Broward County, and Metropolitan Miami Dade Counties.

    Heat index values up to 107 degrees are expected. Hot temperatures and high humidity may cause heat illnesses. The advisory was issued at 1:15 AM EDT on August 21 and expires at 6 PM EDT this evening.

    Residents are advised to drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check on relatives and neighbors. For outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air-conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency; call 9 1 1.

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Revision history

  1. Version 121 Aug 2026, 05:22current

    First published.

  2. Version 121 Aug 2026, 05:21current

    First published.

  3. Version 121 Aug 2026, 05:53current

    First published.

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