Alert archive / Georgia / Special Weather Statements in 2021

Special Weather Statement, NWS Atlanta, GA

July 21, 2021Emanuel County, Georgia

NWS Atlanta, GA issued this special weather statement at Jul 21, 2021, 6:01 PM EDT for Emanuel County, Georgia. It was in force for 29 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, 6:01 PM EDT (22:01 UTC)
Expired
Jul 21, 2021, 6:30 PM EDT
In force
29 min
Issued by
NWS Atlanta, GA
Wind
50

County Emanuel County, GA

The radar

The Robins AFB radar (KJGX), 106 km from the middle of the area, began a volume at 22:04 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, 10.0 hours before the alert went out and 209 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 2021-07-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 601 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Charleston AFB, SC at 12:00Z on 2021-07-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 47 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
601 J/kg
Mixed-layer CIN
-7 J/kg
Mixed-layer LCL
468 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
47 m²/s²
0-3 km storm-relative helicity
71 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.5

Open this sounding in Storm Lab

The text

As transmitted.

455 
WWUS82 KFFC 212201
SPSFFC

Special Weather Statement
National Weather Service Peachtree City GA
601 PM EDT Wed Jul 21 2021
 
GAZ086-212230-
Emanuel GA-
601 PM EDT Wed Jul 21 2021

...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN EMANUEL COUNTY UNTIL
630 PM EDT...

At 601 PM EDT...a strong thunderstorm was over Modoc, or near
Swainsboro...moving east at 10 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
Swainsboro, Garfield, Canoochee and Modoc. 

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 3261 8236 3271 8236 3277 8213 3266 8208
      3263 8204
TIME...MOT...LOC 2201Z 259DEG 7KT 3265 8228 

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, 5:52 PM EDTSpecial Weather StatementFFCWashington23 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.