Alert archive / Georgia / Special Weather Statements in 2021

Special Weather Statement, NWS Atlanta, GA

August 7, 2021Houston County, Georgia

NWS Atlanta, GA issued this special weather statement at Aug 7, 2021, 8:32 PM EDT for Houston County, Georgia. It was in force for 28 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 7, 2021, 8:32 PM EDT (00:32 UTC)
Expired
Aug 7, 2021, 9:00 PM EDT
In force
28 min
Issued by
NWS Atlanta, GA
Hail
0.25 in
Wind
40

County Houston County, GA

The radar

The Robins AFB radar (KJGX), 28 km from the middle of the area, began a volume at 00:32 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 125 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 2021-08-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 428 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 2021-08-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 1 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
428 J/kg
Mixed-layer CIN
-26 J/kg
Mixed-layer LCL
1050 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
1 m²/s²
0-3 km storm-relative helicity
66 m²/s²
Significant tornado parameter
-0.0
Supercell composite
-0.8

Open this sounding in Storm Lab

The text

As transmitted.

103 
WWUS82 KFFC 080032
SPSFFC

Special Weather Statement
National Weather Service Peachtree City GA
832 PM EDT Sat Aug 7 2021
 
GAZ094-095-080100-
Peach GA-Houston GA-
832 PM EDT Sat Aug 7 2021

...A STRONG THUNDERSTORM WILL IMPACT PORTIONS OF SOUTHWESTERN TWIGGS,
SOUTHEASTERN PEACH AND CENTRAL HOUSTON COUNTIES THROUGH 900 PM EDT...

At 832 PM EDT...a strong thunderstorm was over Lakewood, or 8 miles
north of Perry...moving south at 15 mph.

HAZARD...Up to 40 mph wind...pea sized hail and frequent cloud to 
         ground lightning.

SOURCE...Radar indicated.

IMPACT...Expect minor damage to tree limbs and blowing around of 
         light...unsecured objects.

Some locations in the path of this storm include
Perry, Warner Robins, Centerville, Byron, Robins Air Force Base,
Meadowdale, Sand Bed, Houston Lake, Lakewood, Powerville, Moss Oak,
Bonaire, Miami Valley and Kathleen.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People outdoors should seek shelter immediately. If you can hear
thunder...you are close enough to be struck by lightning.

LAT...LON 3261 8384 3267 8365 3267 8363 3254 8354
      3253 8354 3251 8352 3250 8352 3249 8350
      3248 8349 3247 8350 3246 8349 3239 8379
TIME...MOT...LOC 0032Z 340DEG 13KT 3258 8371 

MAX HAIL SIZE...0.25IN
MAX WIND GUST...40MPH

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 7, 8:30 PM EDTSpecial Weather StatementFFCGlascock, Jefferson30 min
Aug 8, 7:01 AM EDTDense Fog AdvisoryFFCBartow, Catoosa, Chattooga, Cherokee, Cobb, Dade and 12 more3 hr
Aug 8, 4:03 PM EDTSpecial Weather StatementFFCLaurens27 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.