Alert archive / Georgia / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 121, NWS Atlanta, GA

August 9, 2021Gilmer County, Gordon County, Murray County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Aug 9, 2021, 5:51 PM EDT for Gilmer County, Gordon County, Murray County, Georgia. It was in force for 24 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 9, 2021, 5:51 PM EDT (21:51 UTC)
Expired
Aug 9, 2021, 6:15 PM EDT
In force
24 min
Issued by
NWS Atlanta, GA
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Gilmer County, GA, Gordon County, GA, Murray County, GA

The radar

The Northeast Alabama radar (KHTX), 141 km from the middle of the area, began a volume at 21:52 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 12:00Z, 9.9 hours before the alert went out and 141 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 2021-08-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 203 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 2021-08-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 39 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
203 J/kg
Mixed-layer CIN
-55 J/kg
Mixed-layer LCL
1139 m above ground
0-6 km bulk shear
6 kt
0-1 km storm-relative helicity
39 m²/s²
0-3 km storm-relative helicity
-4 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

866 
WUUS52 KFFC 092151
SVRFFC
GAC123-129-213-092215-
/O.NEW.KFFC.SV.W.0121.210809T2151Z-210809T2215Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Peachtree City GA
551 PM EDT Mon Aug 9 2021

The National Weather Service in Peachtree City has issued a

* Severe Thunderstorm Warning for...
  Southwestern Gilmer County in north central Georgia...
  Southeastern Murray County in northwestern Georgia...
  Northeastern Gordon County in northwestern Georgia...

* Until 615 PM EDT.

* At 550 PM EDT, a severe thunderstorm was located over Carters, or
  13 miles south of Chatsworth, moving northeast at 10 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...
  Ellijay, East Ellijay, Carters, Talona, Tails Creek, Oakman and
  Roundtop.

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 3463 8441 3454 8465 3459 8478 3480 8468
TIME...MOT...LOC 2150Z 220DEG 7KT 3459 8469 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 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 9, 3:37 PM EDTSpecial Weather StatementFFCPaulding23 min
Aug 9, 3:38 PM EDTSpecial Weather StatementFFCToombs37 min
Aug 9, 3:44 PM EDTSpecial Weather StatementFFCHeard31 min
Aug 9, 3:46 PM EDTSpecial Weather StatementFFCTelfair29 min
Aug 9, 3:47 PM EDTSpecial Weather StatementFFCWalker28 min
Aug 9, 3:53 PM EDTSpecial Weather StatementFFCFloyd37 min
Aug 9, 4:07 PM EDTSpecial Weather StatementFFCPolk23 min
Aug 9, 4:18 PM EDTSpecial Weather StatementFFCMeriwether27 min
Aug 9, 4:31 PM EDTSpecial Weather StatementFFCFloyd29 min
Aug 9, 4:33 PM EDTSpecial Weather StatementFFCEmanuel27 min
Aug 9, 4:45 PM EDTSpecial Weather StatementFFCMeriwether, Troup30 min
Aug 9, 5:06 PM EDTSpecial Weather StatementFFCGordon24 min
Aug 9, 5:12 PM EDTSpecial Weather StatementFFCHarris33 min
Aug 9, 5:23 PM EDTSevere Thunderstorm WarningFFCGordon37 min
Aug 9, 5:52 PM EDTSpecial Weather StatementFFCMeriwether38 min
Aug 9, 6:00 PM EDTSpecial Weather StatementFFCUpson30 min
Aug 9, 6:19 PM EDTSpecial Weather StatementFFCTalbot26 min
Aug 9, 6:57 PM EDTSpecial Weather StatementFFCMarion33 min
Aug 9, 7:23 PM EDTSpecial Weather StatementFFCHall37 min
Aug 9, 7:47 PM EDTSpecial Weather StatementFFCChattahoochee28 min
Aug 9, 7:51 PM EDTSpecial Weather StatementFFCTaylor24 min
Aug 9, 7:54 PM EDTSpecial Weather StatementFFCHall36 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.