Alert archive / Georgia / Special Weather Statements in 2021

Special Weather Statement, NWS Atlanta, GA

July 21, 2021Washington County, Georgia

NWS Atlanta, GA issued this special weather statement at Jul 21, 2021, 5:52 PM EDT for Washington County, Georgia. It was in force for 23 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 21, 2021, 5:52 PM EDT (21:52 UTC)
Expired
Jul 21, 2021, 6:15 PM EDT
In force
23 min
Issued by
NWS Atlanta, GA
Wind
50

County Washington County, GA

The radar

The Robins AFB radar (KJGX), 53 km from the middle of the area, began a volume at 21:53 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, 9.9 hours before the alert went out and 167 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 2021-07-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 131 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 2021-07-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 48 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
131 J/kg
Mixed-layer CIN
-30 J/kg
Mixed-layer LCL
642 m above ground
0-6 km bulk shear
14 kt
0-1 km storm-relative helicity
48 m²/s²
0-3 km storm-relative helicity
37 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

084 
WWUS82 KFFC 212152
SPSFFC

Special Weather Statement
National Weather Service Peachtree City GA
552 PM EDT Wed Jul 21 2021
 
GAZ073-074-084-212215-
Wilkinson GA-Washington GA-Baldwin GA-
552 PM EDT Wed Jul 21 2021

...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN WILKINSON...
SOUTHWESTERN WASHINGTON AND SOUTHEASTERN BALDWIN COUNTIES UNTIL 615
PM EDT...

At 552 PM EDT...a strong thunderstorm was near Hebron, or 9 miles
west of Sandersville...moving east at 25 mph.

  HAZARD...40 to 50 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
Sandersville, Tennille, Harrison, Oconee, Deepstep, Riddleville 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 3278 8272 3279 8277 3280 8278 3280 8280
      3281 8280 3280 8284 3284 8310 3301 8311
      3304 8272 3290 8266
TIME...MOT...LOC 2152Z 271DEG 20KT 3293 8297 

WIND...50MPH

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 20, 8:48 PM EDTSpecial Weather StatementFFCFloyd42 min
Jul 20, 9:03 PM EDTFlash Flood WarningFFCFloyd6 hr
Jul 21, 4:54 PM EDTSpecial Weather StatementFFCBaldwin36 min
Jul 21, 6:01 PM EDTSpecial Weather StatementFFCEmanuel29 min
Jul 21, 6:16 PM EDTSpecial Weather StatementFFCEmanuel14 min
Jul 21, 7:13 PM EDTRiver Flood WarningFFCSumter116 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.