Alert archive / Georgia / Special Weather Statements in 2021

Special Weather Statement, NWS Atlanta, GA

July 15, 2021Johnson County, Laurens County, Georgia

NWS Atlanta, GA issued this special weather statement at Jul 15, 2021, 5:34 PM EDT for Johnson County, Laurens County, Georgia. It was in force for 41 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, 5:34 PM EDT (21:34 UTC)
Expired: Jul 15, 2021, 6:15 PM EDT
In force: 41 min
Issued by: NWS Atlanta, GA
Hail: 0.25 in
Wind: 40

Counties Johnson County, GA, Laurens County, GA

The radar

The Robins AFB radar (KJGX), 29 km from the middle of the area, began a volume at 21:39 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, 9.6 hours before the alert went out and 161 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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.

969 
WWUS82 KFFC 152134
SPSFFC

Special Weather Statement
National Weather Service Peachtree City GA
534 PM EDT Thu Jul 15 2021
 
GAZ084-085-096-097-109-152215-
Wilkinson GA-Johnson GA-Laurens GA-Bleckley GA-Dodge GA-
534 PM EDT Thu Jul 15 2021

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN WILKINSON...WESTERN
JOHNSON...LAURENS...BLECKLEY AND NORTHWESTERN DODGE COUNTIES UNTIL
615 PM EDT...

At 533 PM EDT...strong thunderstorms stretched from Gresston to near 
Dudley to near Lovett, moving north at 15 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
Dublin, Cochran, Wrightsville, East Dublin, Chester, Dexter, Dudley,
Cadwell, Rentz, Montrose, Allentown, Dubois, Spann, Plainfield,
Empire, Roddy, Nicklesville, Baileys Park, Rowland and Lovett.

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 3227 8335 3231 8339 3257 8325 3258 8323
      3260 8324 3279 8312 3277 8296 3276 8296
      3276 8294 3271 8261 3255 8270 3226 8304
      3221 8323
TIME...MOT...LOC 2133Z 200DEG 12KT 3230 8327 3251 8312 3267 8281 

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

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 15, 1:07 PM EDT	Special Weather Statement	FFC	Talbot	23 min
Jul 15, 2:30 PM EDT	Special Weather Statement	FFC	Harris	45 min
Jul 15, 3:08 PM EDT	Special Weather Statement	FFC	Emanuel	52 min
Jul 15, 3:49 PM EDT	Special Weather Statement	FFC	Jasper	41 min
Jul 15, 3:53 PM EDT	Special Weather Statement	FFC	Emanuel, Montgomery, Treutlen, Wheeler	37 min
Jul 15, 4:40 PM EDT	Special Weather Statement	FFC	Montgomery, Telfair, Toombs, Wheeler	50 min
Jul 15, 4:43 PM EDT	Special Weather Statement	FFC	Marion, Schley, Sumter, Webster	47 min
Jul 15, 5:05 PM EDT	Special Weather Statement	FFC	Houston	40 min
Jul 15, 5:27 PM EDT	Special Weather Statement	FFC	Schley, Stewart, Sumter, Webster	48 min
Jul 15, 6:20 PM EDT	Special Weather Statement	FFC	Bleckley, Dooly, Houston, Sumter	40 min
Jul 15, 7:34 PM EDT	Special Weather Statement	FFC	Dooly, Pulaski	41 min

Nearby

Special Weather Statements in Georgia, 2021 Every 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.