Alert archive / Georgia / Special Weather Statements in 2021

Special Weather Statement, NWS Atlanta, GA

July 15, 20214 counties in Georgia

NWS Atlanta, GA issued this special weather statement at Jul 15, 2021, 6:20 PM EDT for 4 counties in Georgia. It was in force for 40 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 15, 2021, 6:20 PM EDT (22:20 UTC)
Expired
Jul 15, 2021, 7:00 PM EDT
In force
40 min
Issued by
NWS Atlanta, GA
Hail
0.25 in
Wind
40

Counties Bleckley County, GA, Dooly County, GA, Houston County, GA, Sumter County, GA

The radar

The Robins AFB radar (KJGX), 37 km from the middle of the area, began a volume at 22:20 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, 10.3 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 2021-07-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 636 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 2021-07-15The 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
636 J/kg
Mixed-layer CIN
-42 J/kg
Mixed-layer LCL
912 m above ground
0-6 km bulk shear
7 kt
0-1 km storm-relative helicity
15 m²/s²
0-3 km storm-relative helicity
40 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

970 
WWUS82 KFFC 152220
SPSFFC

Special Weather Statement
National Weather Service Peachtree City GA
620 PM EDT Thu Jul 15 2021
 
GAZ083-084-092-093-095>097-104-105-107-152300-
Macon GA-Schley GA-Wilkinson GA-Dooly GA-Sumter GA-Houston GA-
Laurens GA-Bleckley GA-Twiggs GA-Pulaski GA-
620 PM EDT Thu Jul 15 2021

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHERN MACON...SOUTHEASTERN
SCHLEY...SOUTHERN WILKINSON...DOOLY...NORTHEASTERN SUMTER...
HOUSTON...NORTHWESTERN LAURENS...BLECKLEY...SOUTHERN TWIGGS AND
NORTHWESTERN PULASKI COUNTIES UNTIL 700 PM EDT...

At 619 PM EDT...strong thunderstorms stretched from near Americus to 
Hawkinsville, Tarversville and Nicklesville, moving southwest at 20 
mph.

  HAZARD...Winds up to 40 mph, pea sized hail, frequent 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
Americus, Perry, Cochran, Hawkinsville, Vienna, Oglethorpe,
Jeffersonville, Unadilla, Montezuma, Dudley, Byromville, Pinehurst,
Andersonville, Danville, Montrose, Lilly, Allentown, Dooling,
Hayneville and Houston Lake.

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 3221 8425 3253 8362 3277 8324 3279 8296
      3247 8309 3244 8316 3245 8318 3240 8323
      3232 8341 3206 8387 3201 8425
TIME...MOT...LOC 2219Z 035DEG 16KT 3208 8408 3239 8367 3263 8322 3271
8307

HAIL...0.25IN
WIND...40MPH

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 15, 1:07 PM EDTSpecial Weather StatementFFCTalbot23 min
Jul 15, 2:30 PM EDTSpecial Weather StatementFFCHarris45 min
Jul 15, 3:08 PM EDTSpecial Weather StatementFFCEmanuel52 min
Jul 15, 3:49 PM EDTSpecial Weather StatementFFCJasper41 min
Jul 15, 3:53 PM EDTSpecial Weather StatementFFCEmanuel, Montgomery, Treutlen, Wheeler37 min
Jul 15, 4:40 PM EDTSpecial Weather StatementFFCMontgomery, Telfair, Toombs, Wheeler50 min
Jul 15, 4:43 PM EDTSpecial Weather StatementFFCMarion, Schley, Sumter, Webster47 min
Jul 15, 5:05 PM EDTSpecial Weather StatementFFCHouston40 min
Jul 15, 5:27 PM EDTSpecial Weather StatementFFCSchley, Stewart, Sumter, Webster48 min
Jul 15, 5:34 PM EDTSpecial Weather StatementFFCJohnson, Laurens41 min
Jul 15, 7:34 PM EDTSpecial Weather StatementFFCDooly, Pulaski41 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.