Alert archive / Georgia / Special Weather Statements in 2021

Special Weather Statement, NWS Atlanta, GA

July 28, 2021Glascock County, Jefferson County, Washington County, Georgia

NWS Atlanta, GA issued this special weather statement at Jul 28, 2021, 4:10 PM EDT for Glascock County, Jefferson County, Washington County, Georgia. It was in force for 35 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
Jul 28, 2021, 4:10 PM EDT (20:10 UTC)
Expired
Jul 28, 2021, 4:45 PM EDT
In force
35 min
Issued by
NWS Atlanta, GA
Wind
40

Counties Glascock County, GA, Jefferson County, GA, Washington County, GA

The radar

The Robins AFB radar (KJGX), 73 km from the middle of the area, began a volume at 20:12 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, 8.2 hours before the alert went out and 160 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 2021-07-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 873 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 2021-07-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 15 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
873 J/kg
Mixed-layer CIN
-77 J/kg
Mixed-layer LCL
713 m above ground
0-6 km bulk shear
11 kt
0-1 km storm-relative helicity
15 m²/s²
0-3 km storm-relative helicity
50 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

455 
WWUS82 KFFC 282010
SPSFFC

Special Weather Statement
National Weather Service Peachtree City GA
410 PM EDT Wed Jul 28 2021
 
GAZ061-074>076-282045-
Jefferson GA-Washington GA-Hancock GA-Glascock GA-
410 PM EDT Wed Jul 28 2021

...SIGNIFICANT WEATHER ADVISORY FOR JEFFERSON...WASHINGTON...
SOUTHEASTERN HANCOCK AND SOUTHWESTERN GLASCOCK COUNTIES UNTIL 445 PM
EDT...

At 409 PM EDT...a line of strong thunderstorms was along a line
extending from near Grange to near Warthen...and moving southwest at
5 mph.

  HAZARD...Up to 40 mph wind...frequent cloud to ground lightning 
           and heavy rain.

  IMPACT...Expect minor damage to tree limbs and blowing around of 
           light...unsecured objects. Heavy rain may cause temporary 
           street flooding especially in poor drainage areas.

Some locations in the path of these storms include
Sandersville, Louisville, Gibson, Davisboro, Tennille, Bartow, Avera,
Mitchell, Deepstep, Riddleville, Edge Hill, Edgehill, Hamburg State
Park, Shoals, Downs, Warthen, Linton, Grange, Stapletons Crossroads
and Agricola.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People outdoors should seek shelter immediately. If you can hear
thunder...you are close enough to be struck by lightning. Motorists
should slow down and be prepared for possible loss of control due to
hydroplaning.

LAT...LON 3283 8252 3301 8306 3303 8307 3306 8304
      3308 8305 3306 8309 3335 8290 3331 8278
      3327 8278 3326 8276 3326 8274 3327 8270
      3327 8268 3314 8231
TIME...MOT...LOC 2009Z 025DEG 6KT 3306 8255 3315 8286 

WIND...40MPH

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 27, 8:18 PM EDTSpecial Weather StatementFFCBleckley, Johnson, Laurens, Twiggs27 min
Jul 27, 8:20 PM EDTSpecial Weather StatementFFCMontgomery25 min
Jul 27, 8:48 PM EDTSpecial Weather StatementFFCLaurens, Treutlen27 min
Jul 27, 9:15 PM EDTSpecial Weather StatementFFCTreutlen30 min
Jul 27, 9:22 PM EDTSpecial Weather StatementFFCWheeler23 min
Jul 28, 4:07 PM EDTSpecial Weather StatementFFCMontgomery, Toombs, Treutlen23 min
Jul 28, 4:33 PM EDTSpecial Weather StatementFFCMontgomery, Toombs, Treutlen, Wheeler27 min
Jul 28, 4:51 PM EDTSpecial Weather StatementFFCWashington24 min
Jul 28, 5:06 PM EDTSpecial Weather StatementFFCTelfair, Wheeler24 min
Jul 28, 5:19 PM EDTSpecial Weather StatementFFCWilkinson26 min
Jul 28, 5:31 PM EDTSpecial Weather StatementFFCWebster29 min
Jul 28, 5:33 PM EDTSpecial Weather StatementFFCTelfair27 min
Jul 28, 6:00 PM EDTSevere Thunderstorm WarningFFCDodge, Wilcox30 min
Jul 28, 6:39 PM EDTSpecial Weather StatementFFCWilcox36 min

Nearby

Special Weather Statements in Georgia, 2021Every special weather statement 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.