Alert archive / Georgia / Special Weather Statements in 2021

Special Weather Statement, NWS Atlanta, GA

October 3, 2021Coweta County, Georgia

NWS Atlanta, GA issued this special weather statement at Oct 3, 2021, 5:30 PM EDT for Coweta County, Georgia. It was in force for 30 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
Oct 3, 2021, 5:30 PM EDT (21:30 UTC)
Expired
Oct 3, 2021, 6:00 PM EDT
In force
30 min
Issued by
NWS Atlanta, GA
Hail
0.00 in
Wind
30

County Coweta County, GA

The radar

The Atlanta radar (KFFC), 28 km from the middle of the area, began a volume at 21:34 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, 9.5 hours before the alert went out and 33 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 2021-10-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 146 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 2021-10-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -15 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
146 J/kg
Mixed-layer CIN
-47 J/kg
Mixed-layer LCL
909 m above ground
0-6 km bulk shear
12 kt
0-1 km storm-relative helicity
-15 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.

444 
WWUS82 KFFC 032130
SPSFFC

Special Weather Statement
National Weather Service Peachtree City GA
530 PM EDT Sun Oct 3 2021
 
GAZ053-067-032200-
Coweta GA-Meriwether GA-
530 PM EDT Sun Oct 3 2021

...A strong thunderstorm will impact portions of northern Meriwether
and southern Coweta Counties through 600 PM EDT...

At 530 PM EDT, a strong thunderstorm was over Lone Oak, or 12 miles
south of Newnan, moving northeast at 20 mph.

HAZARD...Frequent cloud to ground lightning and heavy rain.

SOURCE...Radar indicated.

IMPACT...Lightning is one of nature's leading killers. If you can 
         hear thunder, you are close enough to be struck by 
         lightning. Heavy rain may cause temporary street flooding 
         especially in poor drainage areas.

Locations impacted include...
Newnan, Grantville, Luthersville, Moreland, Sharpsburg, Turin,
Haralson, Lone Oak, East Newnan, Rocky Mount, Saint Marks and Thomas
Crossroads.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People outdoors should seek shelter immediately.  Electrical
appliances should not be used unless in an emergency. Motorists
should slow down and be prepared for possible loss of control due to
hydroplaning.

&&

LAT...LON 3343 8469 3321 8450 3308 8483 3312 8486
      3320 8486 3320 8487 3321 8487 3321 8486
      3322 8486 3323 8487 3322 8494 3323 8494
TIME...MOT...LOC 2130Z 234DEG 16KT 3320 8483 

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...<30 MPH

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 3, 2:30 PM EDTSpecial Weather StatementFFCMacon30 min
Oct 3, 2:37 PM EDTSpecial Weather StatementFFCWalton23 min
Oct 3, 2:54 PM EDTSpecial Weather StatementFFCBarrow36 min
Oct 3, 2:57 PM EDTSpecial Weather StatementFFCDooly33 min
Oct 3, 3:13 PM EDTSpecial Weather StatementFFCSumter32 min
Oct 3, 3:27 PM EDTSpecial Weather StatementFFCForsyth33 min
Oct 3, 3:31 PM EDTSpecial Weather StatementFFCHall14 min
Oct 3, 3:39 PM EDTSpecial Weather StatementFFCDooly36 min
Oct 3, 3:59 PM EDTSpecial Weather StatementFFCHouston31 min
Oct 3, 5:32 PM EDTSpecial Weather StatementFFCJasper, Putnam28 min
Oct 3, 6:38 PM EDTSpecial Weather StatementFFCSchley37 min
Oct 3, 6:53 PM EDTSpecial Weather StatementFFCDeKalb, Fulton37 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.