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NewsWSVN 7 MiamiAugust 21, 2026Miami-Dade

National Weather Service issues Heat Advisory for Miami-Dade and Broward counties

A Heat Advisory is in effect for Miami-Dade and Broward counties from 11am to 6pm on Friday due to high temperatures and humidity. Residents should expect heat index values between 105 and 110 degrees, followed by scattered storms throughout the afternoon and evening.

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Why It Matters

Residents face increased health risks from extreme heat and potential localized flooding from strong storms, requiring adjustments to outdoor activities and safety precautions.

Key Facts

  • Heat Advisory in effect for Miami-Dade and Broward from 11am to 6pm Friday.
  • Heat index values are expected to reach between 105 and 110 degrees.
  • High temperatures will reach the low to mid 90s.
  • Scattered storms are expected to develop after midday through the evening.
  • Strong storms may produce gusty winds, heavy rain, and localized flooding.
  • Saturday will remain hot with scattered afternoon storms.
  • Sunday weather patterns are expected to shift toward a typical summer pattern.
  • The National Hurricane Center is monitoring a non-tropical low near the Azores with a 20% chance of development.
  • A weak low east-southeast of Bermuda has a 10% chance of development in 48 hours and 20% over seven days.
  • There are currently no tropical threats to South Florida.

Who's Mentioned

locationBermuda“Location of monitored weak low”organizationNational Hurricane Center“Monitoring Atlantic weather systems”locationAzores“Location of monitored non-tropical low”locationMiami-Dade“Area under Heat Advisory”locationBroward“Area under Heat Advisory”