Alert archive / Georgia / Special Weather Statements in 2021

Special Weather Statement, NWS Atlanta, GA

August 24, 2021Washington County, Georgia

NWS Atlanta, GA issued this special weather statement at Aug 24, 2021, 6:35 PM EDT for Washington County, Georgia. It was in force for 25 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 24, 2021, 6:35 PM EDT (22:35 UTC)
Expired
Aug 24, 2021, 7:00 PM EDT
In force
25 min
Issued by
NWS Atlanta, GA
Wind
40

County Washington County, GA

The radar

The Robins AFB radar (KJGX), 41 km from the middle of the area, began a volume at 22:38 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, 10.6 hours before the alert went out and 155 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 2021-08-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 665 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 2021-08-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 2 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
665 J/kg
Mixed-layer CIN
-31 J/kg
Mixed-layer LCL
1060 m above ground
0-6 km bulk shear
7 kt
0-1 km storm-relative helicity
2 m²/s²
0-3 km storm-relative helicity
5 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

499 
WWUS82 KFFC 242235
SPSFFC

Special Weather Statement
National Weather Service Peachtree City GA
635 PM EDT Tue Aug 24 2021
 
GAZ073-074-084-085-242300-
Wilkinson GA-Washington GA-Baldwin GA-Johnson GA-
635 PM EDT Tue Aug 24 2021

...STRONG THUNDERSTORMS WILL IMPACT PORTIONS OF NORTHEASTERN
WILKINSON, SOUTHEASTERN BALDWIN, SOUTHWESTERN WASHINGTON AND
NORTHWESTERN JOHNSON COUNTIES THROUGH 700 PM EDT...

At 635 PM EDT...a line of strong thunderstorms was along a line
extending from near Hebron to near Oconee...and moving southwest at
10 mph.

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

SOURCE...Radar indicated.

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
Harrison, Toomsboro, Oconee, Deepstep and Hebron. 

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 3271 8288 3271 8296 3269 8300 3296 8324
      3308 8304 3308 8302 3280 8270
TIME...MOT...LOC 2235Z 022DEG 10KT 3300 8302 3287 8288 

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

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 23, 8:18 PM EDTSpecial Weather StatementFFCStewart, Webster27 min
Aug 24, 6:19 PM EDTSpecial Weather StatementFFCEmanuel, Johnson, Treutlen26 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.