Alert archive / Georgia / Special Weather Statements in 2021

Special Weather Statement, NWS Atlanta, GA

December 29, 2021Chattahoochee County, Marion County, Georgia

NWS Atlanta, GA issued this special weather statement at Dec 29, 2021, 4:47 PM EST for Chattahoochee County, Marion County, Georgia. It was in force for 28 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
Dec 29, 2021, 4:47 PM EST (21:47 UTC)
Expired
Dec 29, 2021, 5:15 PM EST
In force
28 min
Issued by
NWS Atlanta, GA
Hail
0.00 in
Wind
40

Counties Chattahoochee County, GA, Marion County, GA

The radar

The Maxwell AFB radar (KMXX), 100 km from the middle of the area, began a volume at 21:47 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, 9.8 hours before the alert went out and 112 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 2021-12-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCLEL10008507005003002001001 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 2021-12-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 294 square meters per square second.19395878Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
625 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
294 m²/s²
0-3 km storm-relative helicity
274 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

859 
WWUS82 KFFC 292147
SPSFFC

Special Weather Statement
National Weather Service Peachtree City GA
447 PM EST Wed Dec 29 2021
 
GAZ079-089>091-292215-
Chattahoochee GA-Marion GA-Talbot GA-Muscogee GA-
447 PM EST Wed Dec 29 2021

...A strong thunderstorm will impact portions of northern Marion,
southeastern Muscogee, Chattahoochee and southwestern Talbot Counties
through 515 PM EST...

At 446 PM EST, a strong thunderstorm was near Cusseta, moving
northeast at 30 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.

Locations impacted include...
Cusseta, North Fort Benning, Brantley, Christopher, Sand Hill,
Juniper, Vista Terrace, Jamestown/south Fort Benning, Oakland, Manta,
Box Springs, Marion Estates, Eelbeck/West Fort Benning and Benning
Hills.

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 3224 8484 3244 8495 3261 8461 3237 8444
TIME...MOT...LOC 2146Z 243DEG 25KT 3237 8480 

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 29, 9:52 AM ESTSpecial Weather StatementFFCHarris23 min
Dec 29, 10:06 AM ESTSpecial Weather StatementFFCCoweta24 min
Dec 29, 10:33 AM ESTSpecial Weather StatementFFCFayette27 min
Dec 29, 11:01 AM ESTSpecial Weather StatementFFCLamar, Pike, Talbot, Upson29 min
Dec 29, 12:00 PM ESTSpecial Weather StatementFFCBibb, Jones, Monroe30 min
Dec 29, 3:50 PM ESTSpecial Weather StatementFFCChattahoochee, Muscogee25 min
Dec 29, 4:17 PM ESTSpecial Weather StatementFFCChattahoochee, Muscogee28 min
Dec 29, 5:17 PM ESTSpecial Weather StatementFFCTalbot, Taylor28 min
Dec 29, 5:56 PM ESTSpecial Weather StatementFFCButts, Lamar34 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.