Alert archive / Georgia / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 511, NWS Atlanta, GA

August 13, 20234 counties in Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Aug 13, 2023, 8:04 PM EDT for 4 counties in Georgia. It was in force for 27 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Aug 13, 2023, 8:04 PM EDT (00:04 UTC)
Expired
Aug 13, 2023, 8:31 PM EDT
In force
27 min
Issued by
NWS Atlanta, GA
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Catoosa County, GA, Murray County, GA, Walker County, GA, Whitfield County, GA

The radar

The Northeast Alabama radar (KHTX), 102 km from the middle of the area, began a volume at 00:05 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.

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 00:00Z, 0.1 hours before the alert went out and 161 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 00:00Z on 2023-08-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 576 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 00:00Z on 2023-08-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 61 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
576 J/kg
Mixed-layer CIN
-82 J/kg
Mixed-layer LCL
1474 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
61 m²/s²
0-3 km storm-relative helicity
42 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

668 
WUUS52 KFFC 140004
SVRFFC
GAC047-213-295-313-140045-
/O.NEW.KFFC.SV.W.0511.230814T0004Z-230814T0045Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Peachtree City GA
804 PM EDT Sun Aug 13 2023

The National Weather Service in Peachtree City has issued a

* Severe Thunderstorm Warning for...
  Central Catoosa County in northwestern Georgia...
  Central Murray County in northwestern Georgia...
  Whitfield County in northwestern Georgia...
  Southeastern Walker County in northwestern Georgia...

* Until 845 PM EDT.

* At 804 PM EDT, a severe thunderstorm was located over Rocky Face,
  or near Dalton, moving east at 25 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...
  Dalton, Chatsworth, Ringgold, Varnell, Eton, Tunnel Hill, Crandall,
  Sumac, Rocky Face, Tilton, Mill Creek, Beaverdale, Dawnville,
  Villanow, and North Georgia Speedway.

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 3466 8516 3491 8513 3493 8470 3466 8477
TIME...MOT...LOC 0004Z 272DEG 20KT 3482 8505 

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

$$
2 follow-up statements
605 
WWUS52 KFFC 140017
SVSFFC

Severe Weather Statement
National Weather Service Peachtree City GA
817 PM EDT Sun Aug 13 2023

GAC295-140027-
/O.CAN.KFFC.SV.W.0511.000000T0000Z-230814T0045Z/
Walker GA-
817 PM EDT Sun Aug 13 2023

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

LAT...LON 3493 8470 3466 8477 3466 8505 3491 8506
TIME...MOT...LOC 0017Z 272DEG 20KT 3482 8496 

$$

GAC047-213-313-140045-
/O.CON.KFFC.SV.W.0511.000000T0000Z-230814T0045Z/
Catoosa GA-Murray GA-Whitfield GA-
817 PM EDT Sun Aug 13 2023

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 845 PM EDT
FOR EAST CENTRAL CATOOSA...CENTRAL MURRAY AND WHITFIELD COUNTIES...

At 817 PM EDT, a severe thunderstorm was located near Dalton, moving
east at 25 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...
Dalton, Chatsworth, Varnell, Eton, Tunnel Hill, Crandall, Sumac,
Rocky Face, Tilton, Mill Creek, Beaverdale, Dawnville, and North
Georgia Speedway.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3493 8470 3466 8477 3466 8505 3491 8506
TIME...MOT...LOC 0017Z 272DEG 20KT 3482 8496 

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

$$
520 
WWUS52 KFFC 140031
SVSFFC

Severe Weather Statement
National Weather Service Peachtree City GA
831 PM EDT Sun Aug 13 2023

GAC047-213-313-140041-
/O.CAN.KFFC.SV.W.0511.000000T0000Z-230814T0045Z/
Catoosa GA-Murray GA-Whitfield GA-
831 PM EDT Sun Aug 13 2023

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL CATOOSA...CENTRAL
MURRAY AND WHITFIELD COUNTIES IS CANCELLED...
        
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning has
been cancelled.  However, gusty winds and heavy rain are still
possible with this strong thunderstorm.

LAT...LON 3493 8470 3466 8477 3466 8505 3491 8506
TIME...MOT...LOC 0028Z 272DEG 20KT 3482 8486 

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 13, 8:00 PM EDTSpecial Weather StatementFFCMuscogee30 min
Aug 13, 8:14 PM EDTSpecial Weather StatementFFCCherokee31 min
Aug 13, 8:22 PM EDTSpecial Weather StatementFFCGordon23 min
Aug 13, 8:30 PM EDTSpecial Weather StatementFFCFannin, Gilmer, Murray30 min
Aug 13, 8:45 PM EDTSpecial Weather StatementFFCPickens30 min
Aug 13, 8:59 PM EDTSpecial Weather StatementFFCDawson, Fannin, Gilmer, Pickens46 min
Aug 14, 2:13 PM EDTSpecial Weather StatementFFCWalker47 min
Aug 14, 2:29 PM EDTHeat AdvisoryFFCBaldwin, Bibb, Bleckley, Butts, Chattahoochee, Crawford and 43 more30 hr
Aug 14, 2:34 PM EDTSpecial Weather StatementFFCChattooga26 min
Aug 14, 2:45 PM EDTSpecial Weather StatementFFCMurray, Whitfield30 min
Aug 14, 3:00 PM EDTSpecial Weather StatementFFCChattooga45 min
Aug 14, 3:11 PM EDTSpecial Weather StatementFFCGordon, Murray49 min
Aug 14, 3:53 PM EDTSpecial Weather StatementFFCTelfair37 min
Aug 14, 4:21 PM EDTSpecial Weather StatementFFCDodge24 min
Aug 14, 4:49 PM EDTSpecial Weather StatementFFCJackson26 min
Aug 14, 4:57 PM EDTSpecial Weather StatementFFCWalton33 min
Aug 14, 5:01 PM EDTSpecial Weather StatementFFCClarke29 min
Aug 14, 5:12 PM EDTSpecial Weather StatementFFCHenry33 min
Aug 14, 5:35 PM EDTSpecial Weather StatementFFCClarke, Oconee, Oglethorpe40 min
Aug 14, 5:39 PM EDTSpecial Weather StatementFFCMacon36 min
Aug 14, 5:53 PM EDTSpecial Weather StatementFFCHeard37 min
Aug 14, 6:19 PM EDTSpecial Weather StatementFFCCoweta, Heard26 min
Aug 14, 6:27 PM EDTSpecial Weather StatementFFCJasper33 min
Aug 14, 6:42 PM EDTSpecial Weather StatementFFCCoweta, Fayette, Troup33 min
Aug 14, 6:46 PM EDTSpecial Weather StatementFFCDooly29 min
Aug 14, 6:59 PM EDTSpecial Weather StatementFFCJasper, Putnam31 min
Aug 14, 7:35 PM EDTSpecial Weather StatementFFCPutnam25 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2023Every severe thunderstorm warning in 2023

Sources

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