Alert archive / Georgia / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 138, NWS Atlanta, GA

August 25, 20214 counties in Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Aug 25, 2021, 7:02 PM EDT for 4 counties in Georgia. It was in force for 28 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Aug 25, 2021, 7:02 PM EDT (23:02 UTC)
Expired
Aug 25, 2021, 7:30 PM EDT
In force
28 min
Issued by
NWS Atlanta, GA
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Carroll County, GA, Coweta County, GA, Douglas County, GA, Fulton County, GA

The radar

The Atlanta radar (KFFC), 44 km from the middle of the area, began a volume at 23:01 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

TimeReportWhereRemark
Aug 25, 7:05 PM EDTTSTM WND DMG3 Ene Treasure Lake, GATREE DOWN ACROSS NORTH HELTON RD NEAR LIBERTY ROAD.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 11.0 hours before the alert went out and 49 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Peachtre/Fal Fld, GA at 12:00Z on 2021-08-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1222 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Peachtre/Fal Fld, GA at 12:00Z on 2021-08-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 20 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
1222 J/kg
Mixed-layer CIN
-38 J/kg
Mixed-layer LCL
1035 m above ground
0-6 km bulk shear
8 kt
0-1 km storm-relative helicity
20 m²/s²
0-3 km storm-relative helicity
17 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

748 
WUUS52 KFFC 252302
SVRFFC
GAC045-077-097-121-252330-
/O.NEW.KFFC.SV.W.0138.210825T2302Z-210825T2330Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Peachtree City GA
702 PM EDT Wed Aug 25 2021

The National Weather Service in Peachtree City has issued a

* Severe Thunderstorm Warning for...
  Southeastern Carroll County in northwestern Georgia...
  Southwestern Douglas County in north central Georgia...
  Northwestern Coweta County in west central Georgia...
  Southwestern Fulton County in north central Georgia...

* Until 730 PM EDT.

* At 702 PM EDT, a severe thunderstorm was located over Fairplay, or
  11 miles southwest of Douglasville, moving southwest at 15 mph.

  HAZARD...60 mph wind gusts and quarter size hail.

  SOURCE...Radar indicated.

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees.

* Locations impacted include...
  Carrollton, Villa Rica, Mount Zion, Whitesburg, Plant Yates, Byers
  Crossroads, Hannah, Powers Crossroads, Bill Arp, Seaton Lake,
  Fairplay, Handy, Clem, Abilene, John Tanner State Park, Lowell and
  Treasure Lake.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

If you see wind damage...hail or flooding...wait until the storm has
passed...and then call the National Weather Service toll free
at 1 8 6 6 7 6 3 4 4 6 6 or tweet us your report at NWSATLANTA.

&&

LAT...LON 3362 8519 3372 8484 3361 8472 3333 8498
      3340 8501 3342 8501 3343 8505
TIME...MOT...LOC 2302Z 053DEG 13KT 3361 8486 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$
1 follow-up statement
486 
WWUS52 KFFC 252316
SVSFFC

Severe Weather Statement
National Weather Service Peachtree City GA
716 PM EDT Wed Aug 25 2021

GAC121-252326-
/O.CAN.KFFC.SV.W.0138.000000T0000Z-210825T2330Z/
Fulton GA-
716 PM EDT Wed Aug 25 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN FULTON COUNTY IS
CANCELLED...
    
The severe thunderstorm which prompted the warning has weakened and 
moved out of the warned area. Therefore, the warning has been 
cancelled.

LAT...LON 3362 8519 3370 8491 3360 8479 3356 8483
      3354 8483 3333 8498 3343 8502 3343 8505
TIME...MOT...LOC 2316Z 053DEG 13KT 3358 8491 

$$

GAC045-077-097-252330-
/O.CON.KFFC.SV.W.0138.000000T0000Z-210825T2330Z/
Carroll GA-Douglas GA-Coweta GA-
716 PM EDT Wed Aug 25 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 730 PM EDT
FOR SOUTHEASTERN CARROLL...SOUTHWESTERN DOUGLAS AND NORTHWESTERN
COWETA COUNTIES...

At 716 PM EDT, a severe thunderstorm was located over Hannah, or 9
miles east of Carrollton, moving southwest at 15 mph.

HAZARD...60 mph wind gusts and penny size hail.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

Locations impacted include...
Carrollton, Villa Rica, Mount Zion, Whitesburg, Plant Yates, Byers
Crossroads, Hannah, Powers Crossroads, Seaton Lake, Fairplay, Handy,
Clem, Abilene, John Tanner State Park, Lowell and Treasure Lake.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3362 8519 3370 8491 3360 8479 3356 8483
      3354 8483 3333 8498 3343 8502 3343 8505
TIME...MOT...LOC 2316Z 053DEG 13KT 3358 8491 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

The office that day

Everything else NWS Atlanta, GA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 24, 8:11 PM EDTSpecial Weather StatementFFCPaulding34 min
Aug 25, 1:48 PM EDTSpecial Weather StatementFFCPulaski42 min
Aug 25, 2:34 PM EDTSpecial Weather StatementFFCJohnson26 min
Aug 25, 2:49 PM EDTSpecial Weather StatementFFCCrisp26 min
Aug 25, 3:05 PM EDTSpecial Weather StatementFFCJohnson40 min
Aug 25, 3:15 PM EDTSpecial Weather StatementFFCMurray30 min
Aug 25, 4:36 PM EDTSpecial Weather StatementFFCDodge24 min
Aug 25, 5:05 PM EDTSpecial Weather StatementFFCChattahoochee25 min
Aug 25, 5:14 PM EDTSpecial Weather StatementFFCHarris31 min
Aug 25, 5:29 PM EDTSpecial Weather StatementFFCMuscogee31 min
Aug 25, 6:22 PM EDTSpecial Weather StatementFFCBarrow, Clarke, Greene, Jackson, Oconee, Oglethorpe23 min
Aug 25, 7:06 PM EDTSpecial Weather StatementFFCMonroe24 min
Aug 25, 7:15 PM EDTSpecial Weather StatementFFCHaralson, Polk30 min
Aug 25, 7:27 PM EDTSpecial Weather StatementFFCWalton33 min
Aug 25, 7:55 PM EDTSpecial Weather StatementFFCCarroll35 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2021Every severe thunderstorm warning in 2021

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.