Alert archive / Georgia / Special Weather Statements in 2021

Special Weather Statement, NWS Atlanta, GA

August 1, 2021Sumter County, Georgia

NWS Atlanta, GA issued this special weather statement at Aug 1, 2021, 8:29 PM EDT for Sumter County, Georgia. It was in force for 46 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 1, 2021, 8:29 PM EDT (00:29 UTC)
Expired
Aug 1, 2021, 9:15 PM EDT
In force
46 min
Issued by
NWS Atlanta, GA
Wind
40

County Sumter County, GA

The radar

The Robins AFB radar (KJGX), 95 km from the middle of the area, began a volume at 00:28 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, 0.5 hours before the alert went out and 149 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 2021-08-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 542 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 2021-08-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 72 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
542 J/kg
Mixed-layer CIN
-41 J/kg
Mixed-layer LCL
1232 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
72 m²/s²
0-3 km storm-relative helicity
107 m²/s²
Significant tornado parameter
0.1
Supercell composite
2.0

Open this sounding in Storm Lab

The text

As transmitted.

935 
WWUS82 KFFC 020029
SPSFFC

Special Weather Statement
National Weather Service Peachtree City GA
829 PM EDT Sun Aug 1 2021
 
GAZ092-093-104>106-020115-
Macon GA-Schley GA-Crisp GA-Dooly GA-Sumter GA-
829 PM EDT Sun Aug 1 2021

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN MACON...SOUTHEASTERN
SCHLEY...NORTHWESTERN CRISP...SOUTHWESTERN DOOLY AND EASTERN SUMTER
COUNTIES UNTIL 915 PM EDT...

At 829 PM EDT...a strong thunderstorm was over Andersonville, or near
Oglethorpe...moving southeast at 35 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 this storm include
Americus, Vienna, Oglethorpe, Montezuma, Leslie, Andersonville,
Lilly, De Soto, Desoto, Cobb, Lamar, Georgia Veterans Memorial St Pk,
New Era, Fountainville, Flint River Wma, La Crosse, Huntington,
Pennington, Andersonville National Historic and Drayton.

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 3192 8415 3227 8430 3236 8414 3210 8380
      3191 8388
TIME...MOT...LOC 0029Z 325DEG 30KT 3223 8414 

WIND...40MPH

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 1, 8:10 PM EDTSpecial Weather StatementFFCEmanuel50 min
Aug 1, 9:16 PM EDTSpecial Weather StatementFFCCrisp, Dooly, Wilcox44 min
Aug 2, 3:11 PM EDTSpecial Weather StatementFFCSumter, Webster49 min
Aug 2, 3:53 PM EDTSpecial Weather StatementFFCPulaski52 min
Aug 2, 4:18 PM EDTSpecial Weather StatementFFCStewart42 min
Aug 2, 4:59 PM EDTSpecial Weather StatementFFCDodge46 min
Aug 2, 5:16 PM EDTSpecial Weather StatementFFCCrisp44 min
Aug 2, 5:21 PM EDTSpecial Weather StatementFFCChattahoochee, Muscogee39 min
Aug 2, 5:27 PM EDTSpecial Weather StatementFFCWilcox48 min
Aug 2, 5:34 PM EDTSpecial Weather StatementFFCWheeler41 min
Aug 2, 6:05 PM EDTSpecial Weather StatementFFCTaylor40 min
Aug 2, 6:31 PM EDTSpecial Weather StatementFFCMontgomery44 min
Aug 2, 6:40 PM EDTSpecial Weather StatementFFCLaurens50 min
Aug 2, 7:29 PM EDTSpecial Weather StatementFFCTreutlen31 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.