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How hot does it have to be for heat alerts to be issued in Atlanta?

The criteria for heat advisories, heat watches, and heat warnings differ.
Credit: Günter Albers - stock.adobe.com

ATLANTA — Temperatures are heating up as we approach the official start of summer on June 20, and our first heatwave of the season is expected later this week.  

The National Weather Service issues heat alerts when temperatures are forecast to reach dangerous levels.

A Heat Advisory is issued when 'feels like' temperatures are expected to reach or be greater than 105 degrees or when the actual air temperature is expected to be 103 degrees or greater.

An Excessive Heat Warning is issued when 'feels like' temperatures are expected to reach or be greater than 110 degrees or when the actual air temperature is expected to be 105 degrees or greater.

An Excessive Heat Watch is issued when the criteria for an Excessive Heat Warning is forecast to be met 12-48 hours out.

These criteria are specific to the National Weather Service's Peachtree City forecast office, which is responsible for much of north and central Georgia.

Hartsfield-Jackson International Airport has only hit 105° a handful of times - twice in 1980 and twice in 2012. Heat Advisories are fairly common in the summer months across metro Atlanta, the last Excessive Heat Warning in north Georgia was June 30, 2012 - nearly 12 years ago.

When a heat alert is issued...

  • Never leave people or pets in a closed car on a warm day.
  • Wear loose, lightweight, light-colored clothing.
  • If you’re outside, find shade. Wear a hat wide enough to protect your face. 
  • Drink plenty of fluids to stay hydrated.
  • Avoid high-energy activities or work outdoors during midday heat, if possible.
  • Check on family members, seniors and neighbors.
  • Watch for heat cramps, heat exhaustion, and heat stroke.
  • Consider pet safety. If they are outside, make sure they have plenty of cool water and access to comfortable shade. Asphalt and dark pavement can be VERY HOT to your pet’s feet.

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