Alert archive / Georgia / Special Weather Statements in 2021

Special Weather Statement, NWS Atlanta, GA

July 11, 2021Emanuel County, Georgia

NWS Atlanta, GA issued this special weather statement at Jul 11, 2021, 5:36 PM EDT for Emanuel County, Georgia. It was in force for 24 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 11, 2021, 5:36 PM EDT (21:36 UTC)
Expired
Jul 11, 2021, 6:00 PM EDT
In force
24 min
Issued by
NWS Atlanta, GA
Wind
40

County Emanuel County, GA

The radar

The Robins AFB radar (KJGX), 104 km from the middle of the area, began a volume at 21:38 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

Charleston AFB, SC (KCHS), launched 12:00Z, 9.6 hours before the alert went out and 217 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, Charleston AFB, SC at 12:00Z on 2021-07-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1176 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, Charleston AFB, SC at 12:00Z on 2021-07-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -10 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
1176 J/kg
Mixed-layer CIN
-29 J/kg
Mixed-layer LCL
833 m above ground
0-6 km bulk shear
15 kt
0-1 km storm-relative helicity
-10 m²/s²
0-3 km storm-relative helicity
-9 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

390 
WWUS82 KFFC 112136
SPSFFC

Special Weather Statement
National Weather Service Peachtree City GA
536 PM EDT Sun Jul 11 2021
 
GAZ086-112200-
Emanuel GA-
536 PM EDT Sun Jul 11 2021

...SIGNIFICANT WEATHER ADVISORY FOR EMANUEL COUNTY UNTIL 600 PM
EDT...

At 535 PM EDT...a strong thunderstorm was over Lexsy, or 7 miles
south of Swainsboro...moving north at 20 mph.

  HAZARD...Up to 40 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
Swainsboro, Twin City, Stillmore, Oak Park, Nunez and Lexsy. 

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 3250 8216 3247 8218 3243 8219 3239 8222
      3242 8239 3244 8238 3246 8242 3264 8240
      3260 8213
TIME...MOT...LOC 2135Z 193DEG 15KT 3249 8230 

WIND...40MPH

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 11, 1:54 PM EDTSpecial Weather StatementFFCChattahoochee36 min
Jul 11, 1:56 PM EDTSpecial Weather StatementFFCMuscogee64 min
Jul 11, 2:13 PM EDTSpecial Weather StatementFFCSchley32 min
Jul 11, 2:48 PM EDTSpecial Weather StatementFFCMacon, Schley, Taylor, Webster27 min
Jul 11, 3:01 PM EDTSpecial Weather StatementFFCWarren29 min
Jul 11, 3:20 PM EDTSpecial Weather StatementFFCMacon, Schley25 min
Jul 11, 4:29 PM EDTSpecial Weather StatementFFCJohnson46 min
Jul 11, 5:06 PM EDTSpecial Weather StatementFFCCandler24 min
Jul 11, 7:46 PM EDTSpecial Weather StatementFFCCatoosa, Chattooga, Dade, Walker, Whitfield44 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.