Alert archive / Georgia / Special Weather Statements in 2021

Special Weather Statement, NWS Atlanta, GA

October 7, 2021Glascock County, Georgia

NWS Atlanta, GA issued this special weather statement at Oct 7, 2021, 3:30 PM EDT for Glascock County, Georgia. It was in force for 30 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
Oct 7, 2021, 3:30 PM EDT (19:30 UTC)
Expired
Oct 7, 2021, 4:00 PM EDT
In force
30 min
Issued by
NWS Atlanta, GA
Hail
0.00 in
Wind
30

County Glascock County, GA

The radar

The Robins AFB radar (KJGX), 90 km from the middle of the area, began a volume at 19:29 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, 7.5 hours before the alert went out and 178 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 2021-10-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 134 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 2021-10-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 70 square meters per square second.193958Sfc1 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
134 J/kg
Mixed-layer CIN
-93 J/kg
Mixed-layer LCL
660 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
70 m²/s²
0-3 km storm-relative helicity
102 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.7

Open this sounding in Storm Lab

The text

As transmitted.

322 
WWUS82 KFFC 071930
SPSFFC

Special Weather Statement
National Weather Service Peachtree City GA
330 PM EDT Thu Oct 7 2021
 
GAZ075-076-072000-
Jefferson GA-Glascock GA-
330 PM EDT Thu Oct 7 2021

...A thunderstorm with heavy rain will impact portions of Glascock 
and northern Jefferson Counties through 400 PM EDT...

At 328 PM EDT, the thunderstorm was over Avera, or near Gibson, 
moving east at 10 mph.

HAZARD...Heavy rain.

SOURCE...Radar indicated.

IMPACT...Heavy rain may cause temporary street flooding especially 
         in poor drainage areas.

Locations impacted include...
Gibson, Wrens, Stapleton, Avera, Mitchell, Edge Hill, Edgehill,
Agricola, Stellaville and Bastonville.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People outdoors should seek shelter immediately.  Electrical
appliances should not be used unless in an emergency. Motorists
should slow down and be prepared for possible loss of control due to
hydroplaning.

&&

LAT...LON 3312 8257 3313 8266 3316 8271 3317 8272
      3318 8274 3319 8274 3332 8256 3328 8243
      3318 8232
TIME...MOT...LOC 1928Z 249DEG 11KT 3319 8253 

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...<30 MPH

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 7, 1:11 AM EDTRiver Flood WarningFFCBaldwin, Washington, Wilkinson51 hr
Oct 7, 4:07 AM EDTSpecial Weather StatementFFCMadison38 min
Oct 7, 6:48 AM EDTRiver Flood WarningFFCElbert, Madison, Oglethorpe31 hr
Oct 7, 1:09 PM EDTSpecial Weather StatementFFCTaliaferro36 min
Oct 7, 1:45 PM EDTSpecial Weather StatementFFCWarren30 min
Oct 7, 2:17 PM EDTSpecial Weather StatementFFCWarren28 min
Oct 7, 2:47 PM EDTSpecial Weather StatementFFCHancock28 min
Oct 7, 3:18 PM EDTSpecial Weather StatementFFCHancock27 min
Oct 7, 3:51 PM EDTSpecial Weather StatementFFCHancock24 min
Oct 7, 5:29 PM EDTSpecial Weather StatementFFCBartow2 hr
Oct 7, 5:31 PM EDTSpecial Weather StatementFFCGwinnett119 min
Oct 7, 7:04 PM EDTSpecial Weather StatementFFCJackson86 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.