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. The National Weather Service issues heat alerts when temperatures are forecast to reach dangerous levels. The criteria for these alerts differ from heat advisories, heat watches, and heat warnings. An Excessive Heat Warning is issued when the actual air temperature is expected to exceed 105 degrees or exceed the expected 110 degrees. A Heat Advisory can be issued when 'feels like' temperatures are expected to reach or exceed 103 degrees or higher than 103 degrees, or when the average air temperature will exceed 110 degrees or greater. These criteria are specific to the National Weather Services's Peachtree City forecast office, responsible for north and central Georgia.
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The criteria for heat advisories, heat watches, and heat warnings differ.
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 103 degrees or when the actual air temperature is expected to be 105 degrees or greater.
An Excessive Heat Warning 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 110 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.