Georgia Forecast Calls for Daily Thunderstorms and Return to Double-digit Heat Index

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

Numerous to widespread thunderstorms are expected across north and central Georgia today and tonight, bringing the potential for gusty winds, frequent lightning, locally heavy rainfall, and flash flooding. The National Weather Service says daily thunderstorm chances will continue through Saturday, with dangerous heat expected to return late this week as heat index values climb back into the triple digits.

The National Weather Service issued a hazardous weather outlook for north and central Georgia for Tuesday, July 14.

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:

512 AM EDT Tue Jul 14 2026

This Hazardous Weather Outlook is for north and central Georgia.

.DAY ONE…Today and Tonight…

Numerous to widespread showers and thunderstorms are likely this
afternoon and evening. Any storms that form will be capable of
producing gusty winds, frequent lightning, and locally heavy
rainfall and flash flooding concerns.

.DAYS TWO THROUGH SEVEN…Wednesday through Monday…

Scattered to numerous afternoon thunderstorms are likely each day
through Saturday. Any storms that form will be capable of
producing gusty winds, frequent lightning, and locally heavy
rainfall.

Heat concerns will return late week as maximum heat index values
are expected to rise back into the triple digits.

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.