National Weather Service warns of storms and dangerous heat across Georgia

There are three separate images: a silhouette of a person in a storm walking with an umbrella, a thermometer with flames over it, and the Cobb County Courier logo

Scattered thunderstorms capable of producing gusty winds, frequent lightning, and heavy rainfall are expected across parts of central Georgia this afternoon and again Friday, according to the National Weather Service. The Hazardous Weather Outlook also warns that much hotter conditions will develop over the weekend into next week, with heat index values climbing into the upper 90s to low 100s across north and central Georgia.

The National Weather Service issued a hazardous weather outlook for north and central Georgia for Thursday, June 25, 2026.

Bonus for the more weather-curious among you … To read an article about interpreting a weather news report with some of the typical terminology defined,  follow this link.

What is in the Hazardous Weather Outlook?

The hazardous weather outlook states the following:

425 AM EDT Thu Jun 25 2026

This Hazardous Weather Outlook is for north and central Georgia.

.DAY ONE…Today and Tonight…

Scattered thunderstorms are expected this afternoon across Central
GA. A few may be strong with gusty winds, frequent lightning, and
heavy rainfall.

.DAYS TWO THROUGH SEVEN…Friday through Wednesday…

Scattered afternoon thunderstorms will be around the region on
Friday. Any storms that form will be capable of producing gusty
winds, frequent lightning, and heavy rainfall.

Much warmer temperatures are expected over the weekend into next
week, with heat index values in the upper 90s to low 100s each
day.

Counties included in the alert

  • Baldwin
  • Banks
  • Barrow
  • Bartow
  • Bibb
  • Bleckley
  • Butts
  • Carroll
  • Catoosa
  • Chattahoochee
  • Chattooga
  • Cherokee
  • Clarke
  • Clayton
  • Cobb
  • Coweta
  • Crawford
  • Crisp
  • Dade
  • Dawson
  • DeKalb
  • Dodge
  • Dooly
  • Douglas
  • Emanuel
  • Fannin
  • Fayette
  • Floyd
  • Forsyth
  • Gilmer
  • Glascock
  • Gordon
  • Greene
  • Gwinnett
  • Hall
  • Hancock
  • Haralson
  • Harris
  • Heard
  • Henry
  • Houston
  • Jackson
  • Jasper
  • Jefferson
  • Johnson
  • Jones
  • Lamar
  • Laurens
  • Lumpkin
  • Macon
  • Madison
  • Marion
  • Meriwether
  • Monroe
  • Montgomery
  • Morgan
  • Murray
  • Muscogee
  • Newton
  • North Fulton
  • Oconee
  • Oglethorpe
  • Paulding
  • Peach
  • Pickens
  • Pike
  • Polk
  • Pulaski
  • Putnam
  • Rockdale
  • Schley
  • South Fulton
  • Spalding
  • Stewart
  • Sumter
  • Talbot
  • Taliaferro
  • Taylor
  • Telfair
  • Toombs
  • Towns
  • Treutlen
  • Troup
  • Twiggs
  • Union
  • Upson
  • Walker
  • Walton
  • Warren
  • Washington
  • Webster
  • Wheeler
  • White
  • Whitfield
  • Wilcox
  • Wilkes
  • Wilkinson

What is meant by “isolated” and “scattered”?

The NWS defines “isolated” as follows:

A National Weather Service convective precipitation descriptor for a 10 percent chance of measurable precipitation (0.01 inch). Isolated is used interchangeably with few.

“Scattered” has the following definition:

When used to describe precipitation (for example: “scattered showers”) – Area coverage of convective weather affecting 30 percent to 50 percent of a forecast zone(s).

Isolated thunderstorms and scattered thunderstorms are two terms used to describe different distributions of thunderstorm activity within a particular area. The main difference lies in the extent of coverage and how the thunderstorms are spatially distributed:

  1. Isolated Thunderstorms:
    • Isolated thunderstorms are relatively rare occurrences that happen sporadically and are generally confined to a limited area.
    • These thunderstorms are often characterized by being few and far between, with significant gaps between individual storm cells.
    • Typically, isolated thunderstorms cover less than 20% of the forecast area.
    • Despite their isolated nature, these storms can still be intense and may produce heavy rain, lightning, gusty winds, and possibly hail.
  2. Scattered Thunderstorms:
    • Scattered thunderstorms are more widespread than isolated thunderstorms and cover a larger portion of the forecast area.
    • In a scattered thunderstorm scenario, numerous individual thunderstorms develop, but they are not continuous or widespread enough to be classified as a “line” or “cluster” of storms.
    • Scattered thunderstorms generally cover between 30% to 50% of the forecast area.
    • Although scattered thunderstorms are more widespread, they still leave considerable gaps between storm cells, and not everyone within the forecast area will necessarily experience a thunderstorm.

In summary, isolated thunderstorms are fewer in number and more localized, covering a smaller area with significant gaps between storms, while scattered thunderstorms are more widespread, covering a larger area with numerous individual storms occurring somewhat randomly across the forecast area.

About the National Weather Service

The National Weather Service (NWS) is a part of the National Oceanic and Atmospheric Administration (NOAA).

The NWS describes its role as follows:

The National Weather Service (NWS) provides weather, water, and climate forecasts and warnings for the United States, its territories, adjacent waters and ocean areas, for the protection of life and property and the enhancement of the national economy.

These services include Forecasts and Observations, Warnings, Impact-based Decision Support Services, and Education in an effort to build a Weather-Ready Nation. The ultimate goal is to have a society that is prepared for and responds to weather, water and climate events.

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