Georgia Weather Radar Live: Complete 2026 Guide To Tracking Severe Storms Across GA

Real-time Doppler weather radar in Georgia operates through a network of high-powered National Weather Service (NWS) NEXRAD installations, Department of Defense radar arrays, and Federal Aviation Administration Terminal Doppler systems that continuously scan the Peach State’s complex terrain.

Whether tracking high-precipitation supercells across the North Georgia mountains, linear squall lines traversing Metro Atlanta, or tropical systems pushing inland across South Georgia from the Atlantic and Gulf coasts, reading Doppler radar requires an understanding of station coverage, beam height limitations, and dual-polarization signatures. This operational guide breaks down every radar site serving Georgia in 2026, details advanced radar interpretation, and provides actionable tracking strategies for severe weather safety.

The Georgia NEXRAD Radar Network: Stations, Call Signs, and Coverage

Radar coverage across Georgia is not powered by a single antenna. Instead, it relies on an interconnected grid of S-band WSR-88D (Weather Surveillance Radar, 1988 Doppler) installations and C-band TDWR (Terminal Doppler Weather Radar) platforms.

Because radar beams travel in straight lines while the Earth curves beneath them, a radar beam climbs higher above the ground the farther it travels from the radome. Understanding which specific radar site covers your local county is essential for detecting low-level rotation, microbursts, and shallow winter precipitation bands.

Primary In-State Weather Radar Sites

• KFFC (Peachtree City / Atlanta): The central hub for northern and central Georgia, operated by NWS Forecast Office Peachtree City. Located in Fayette County, KFFC delivers primary coverage for the 29-county Atlanta Metropolitan Area, stretching north toward the Blue Ridge foothills and south toward Macon.
• KJGX (Robins Air Force Base / Warner Robins): Positioned near Macon in Houston County, this dual-mission DOD/NOAA installation bridges the radar gap between Central Georgia, the Fall Line, and the Upper Coastal Plain.
• KVAX (Moody Air Force Base / Valdosta): Covering deep South Georgia and the Florida border region, KVAX monitors low-level tornadic activity and severe pulse thunderstorms across Lowndes, Thomas, Ware, and surrounding counties.

Critical Border Radar Sites Covering Georgia

Portions of Georgia fall outside the optimal low-altitude beam range of in-state radars. Meteorologists routinely sample data from out-of-state perimeter radars to inspect storms in boundary zones:

• KCLX (Charleston, SC): Situated in Jasper County, South Carolina, KCLX serves as the primary low-level radar for Savannah, the Chatham County coastline, and southeastern Georgia counties including Effingham, Bulloch, and Liberty.
• KCAE (Columbia, SC): Samples storms crossing the Savannah River basin into Augusta, Richmond County, and the Central Savannah River Area (CSRA).
• KMRX (Morristown / Knoxville, TN): Provides beam coverage down the Tennessee Valley into the mountainous terrain of Dade, Walker, Catoosa, and Fannin counties.
• KHTX (Hytop / Northeast Alabama): Scans far northwest Georgia, including Lookout Mountain and the Sand Mountain plateau.
• KBMX (Birmingham, AL): Essential for watching severe bow echoes and squall lines before they cross the Interstate 20 corridor into West Georgia counties such as Carroll, Haralson, and Troup.
• KEOX (Fort Novosel / Enterprise, AL): Covers the southwestern corner of Georgia, including Albany, Bainbridge, and Columbus.
• KJAX (Jacksonville, FL): Monitors Camden, Charlton, and Glynn counties along coastal Southeast Georgia, including the Golden Isles and the Okefenokee Swamp.

Aviation Terminal Doppler (TDWR) Assets

• TATL (Atlanta Hartsfield-Jackson TDWR): Located in Clifton, DeKalb County, this high-resolution C-band radar operates with a faster rotational scan rate than NEXRAD. While C-band radar suffers from signal attenuation (loss of radar energy) in heavy rain, TATL provides immediate, high-resolution scans of low-altitude wind shear, microbursts, and developing boundary-layer rotation directly over the core Atlanta metro corridor.

Georgia Doppler Radar Specifications and Coverage Map Data

The following matrix outlines the operational specifications of the primary radar stations actively sampling Georgia airspace in 2026.

Advanced Dual-Polarization Radar: Beyond Base Reflectivity

Modern storm tracking in Georgia uses dual-polarization (Dual-Pol) technology. Traditional radar transmits only horizontal microwave pulses, measuring the horizontal dimensions of precipitation particles. Dual-Pol transmits and receives both horizontal and vertical pulses, allowing users to assess the size, shape, and physical composition of targets.

1. Base Reflectivity (dBZ)

Base Reflectivity measures the amount of transmitted energy backscattered by precipitation particles, displayed in decibels of Z (dBZ):

• Light Blue/Green (10–30 dBZ): Light rain, drizzle, or non-precipitating clouds.
• Yellow/Orange (35–45 dBZ): Moderate rain and standard convective shower bands.
• Red/Magenta (50–65 dBZ): Heavy downpours, strong updrafts, and small hail.
• White/Purple (65+ dBZ): High probability of severe hail falling through the core of the storm.

2. Base Velocity and Storm Relative Motion (SRM)

Velocity products measure the speed and direction of wind targets relative to the radar radome, utilizing the Doppler effect:

• Green Tones: Air and precipitation moving inbound toward the radar.
• Red Tones: Air and precipitation moving outbound away from the radar.
• Couplets: When bright red and bright green appear tightly positioned side-by-side, it signifies a rotating column of air (mesocyclone). When green is on the right and red is on the left relative to the radar beam, cyclonic rotation is occurring, prompting tornado warnings.

3. Correlation Coefficient (CC)

Correlation Coefficient compares how similarly the horizontal and vertical pulses behave from pulse to pulse on a scale from 0 to 1.0:

• 0.95 to 1.00 (High Correlation): Identical hydrometeors (pure rain or uniform snow).
• 0.80 to 0.94 (Moderate Correlation): Mixed precipitation regimes (rain mixed with sleet, melting snow, or large irregular hail).
• Below 0.80 (Low Correlation): Non-meteorological targets. A sudden drop in CC to 0.70 or below that aligns directly with an active velocity couplet signifies a Tornado Debris Signature (TDS). This confirms that physical debris—such as foliage, insulation, and building materials—has been lofted into the air, validating a damaging tornado on the ground.

4. Differential Reflectivity (ZDR)

ZDR calculates the difference between horizontal and vertical reflectivity factors:

• Positive Values: Oblate raindrops that flatten as they fall due to aerodynamic drag.
• Near-Zero Values: Spherical targets such as tumbling hailstones or tumbling debris.
• Negative Values: Vertically oriented ice crystals aloft within strong electric fields preceding lightning discharge.

Technical Challenges of Georgia's Radar Topography

Interpreting weather radar across Georgia requires accounting for regional physiographic realities that distort or block radar returns.

Radar Beam Elevation Trajectory

Radar pulses climb steadily away from the surface. At 60 miles from the radome, the center of a 0.5-degree radar beam is approximately 4,000 to 5,000 feet above ground level. At 100 miles, the beam samples targets at 9,000 to 12,000 feet. In shallow winter setups or low-topped severe setups, a radar beam can overshoot the most dangerous weather near the ground.

The North Georgia Mountain Blind Zone

The southern Appalachian chain (Blue Ridge and Cohutta mountains) creates physical radar blockage. When looking toward Gilmer, Fannin, Union, and Towns counties from KFFC in Peachtree City, the lower radar tilts strike physical terrain ridges.

Consequently, radar operators must use higher elevation angles or rely on KMRX (Knoxville), which shoots over the higher peaks from the north. This can obscure low-level rotation during nocturnal cool-season tornado outbreaks, where mini-supercells feature rotation zones lower than 3,000 feet above ground level.

The Fall Line Radar Overlap

The Georgia Fall Line—the geological boundary separating the Piedmont from the Coastal Plain, running from Columbus through Macon to Augusta—marks a transition zone in atmospheric moisture. Storms moving off the higher Piedmont terrain onto the warm, moist Coastal Plain often undergo rapid surface-based reorganization.

Because KFFC, KJGX, and KEOX share coverage here, switching between radars is critical to verify if a squall line is developing embedded mesovortices along this geographic boundary.

Step-by-Step: How to Track Severe Weather in Georgia in 2026

When severe thunderstorms, damaging straight-line winds, or tornado watches threaten your region, follow this structured workflow to monitor conditions:

1. Locate Your Position Relative to the Closest Radar: Identify whether your county is closest to KFFC, KJGX, KVAX, KCLX, or border radar sites. Switch your radar client or application to the nearest radar to ensure you view the lowest possible elevation slice (typically 0.5 degrees).

2. Check Base Reflectivity for Storm Structure: Examine convective lines or discrete supercells. Look for hook echoes on the rear-southwest flank of isolated storms, bow echoes with tight forward-surging segments (indicating damaging downburst winds exceeding 60 mph), and bounded weak echo regions (BWER) that indicate intense updrafts.

3. Switch to Storm Relative Velocity (SRM): Remove the storm's overall forward motion to reveal localized internal wind shear. Inspect the storm for tight, opposing green and red colors. If you identify adjacent inbound/outbound vectors within 1 to 2 nautical miles of each other, rotation is intensifying.

4. Interrogate the Correlation Coefficient (CC) for Debris: If a velocity couplet is visible, switch to the CC product. Look at the exact coordinates of the velocity vortex. If you see a coincident localized dip in CC below 0.75, a tornado is lofting debris into the air. Take immediate emergency shelter in an interior room on the lowest floor.

5. Cross-Check with Aviation TDWR (If Within Metro Atlanta): If the storm is within 30 miles of the I-285 perimeter, compare the NEXRAD (KFFC) view with the Terminal Doppler (TATL) feed. TATL updates on rapid-fire scans, offering earlier detection of severe microbursts and spin-up tornadoes along front boundaries.

Georgia Severe Weather Radar: Strengths vs. Limitations

While Georgia has comprehensive Doppler coverage, relying exclusively on radar imagery presents operational trade-offs during active weather scenarios.

Advantages of Georgia's Radar Grid

• Dense Radar Interlocking: Multiple overlapping radars (KFFC, KJGX, KVAX, KCLX, KEOX, KCAE) ensure that if one site goes down for maintenance or loses grid power during a severe weather event, neighboring sites cover the gap.
• Automated Dual-Pol Upgrades: Real-time dual-pol correlation identifies hail size separation, freezing levels, and confirmed tornado debris, eliminating reliance on visual storm spotter confirmation during nocturnal events.
• High-Speed Volumetric Updates: Modern scan strategies (such as SAILS - Supplemental Adaptive Intra-Volume Low-Level Scan) slice through the lowest 0.5-degree layer multiple times during a single 4-to-5-minute volumetric cycle.

Operational Radar Limitations

• Low-Altitude Beam Overshooting: In far-flung rural counties like Rabun in the northeast or Seminole in the southwest, radar beams cannot sample weather under 4,000 feet, which can allow low-topped winter squall lines or shallow rotating storms to pass undetected.
• Heavy Precipitation Attenuation: During tropical weather systems or extensive mesoscale convective complexes, microwave signals can be absorbed or scattered by close-in torrential rain, leaving storms behind the primary line appearing weaker than they actually are.
• Non-Precipitation Artifacts: Anomalous propagation (AP) occurs when temperature inversions bend radar beams into the ground, creating false reflectivity returns that mimic intense rainfall when the sky is clear.

Frequently Asked Questions

Which weather radar covers Atlanta, Georgia?

Atlanta is primarily covered by the KFFC NEXRAD radar station located in Peachtree City, Fayette County, approximately 25 miles south-southwest of downtown Atlanta. The metropolitan core and Hartsfield-Jackson International Airport are additionally covered by the high-resolution Federal Aviation Administration Terminal Doppler Weather Radar (TATL), located in Clifton, DeKalb County. TATL provides rapid low-altitude wind shear scans for the I-285 perimeter.

Why do some tornadoes not show up on Georgia weather radar?

Small, short-lived tornadoes (such as EF-0 or EF-1 spin-ups along a QLCS squall line) often develop and dissipate within 2 to 3 minutes beneath the altitude of the radar beam. Because the radar beam rises higher above the surface the farther it travels from the station, low-altitude circulation occurring in valleys or distant border counties can spin up underneath the radar beam between volume scan intervals without displaying a clear velocity couplet.

What is the difference between green and red on Georgia radar velocity screens?

Green represents precipitation particles moving inbound toward the radar station, while red represents particles moving outbound away from the radar station. When bright red and bright green pixels are situated directly beside each other, it signifies rotation in the atmosphere. A tight velocity couplet with inbound and outbound winds in close proximity indicates a developing or active mesocyclone capable of producing a tornado.

How do I identify hail on Georgia weather radar?

Hail is identified on Base Reflectivity by extremely high reflectivity cores, typically showing as bright pink, white, or purple values exceeding 60 to 65 dBZ. To confirm whether reflectivity represents hail or extreme rain, meteorologists check Differential Reflectivity (ZDR), which drops close to 0 dB for tumbling, spherical hailstones, alongside a slight drop in Correlation Coefficient (CC) to between 0.85 and 0.93.

Does mountain blockage affect weather radar in North Georgia?

Yes, the mountainous topography of the Blue Ridge and Cohutta ranges blocks the lowest-angle radar sweeps emitted by the KFFC radar in Peachtree City. As a result, counties including Towns, Union, Fannin, and Rabun suffer from radar beam blockage at ground level. Meteorologists tracking storms in these mountain zones often switch between KFFC, KMRX (Morristown, TN), and KGSP (Greer, SC) to sample convective cloud structures from different angles.

Maintain Comprehensive Weather Readiness

Weather radar remains the primary tool for severe storm survival across Georgia, but radar imagery is most effective when paired with real-time ground-truth verification. Stay prepared during high-wind events, severe squall lines, and tornado warnings by monitoring live radar streams alongside NOAA Weather Radio broadcasts and emergency alerts. Keep your radar tools set to the closest local station, watch the velocity channels during high-wind events, and ensure your severe weather action plan is ready before storms move across the state.