Alert archive / Georgia / Special Weather Statements in 2021

Special Weather Statement, NWS Atlanta, GA

September 7, 20217 counties in Georgia

NWS Atlanta, GA issued this special weather statement at Sep 7, 2021, 7:21 PM EDT for 7 counties in Georgia. It was in force for 39 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
Sep 7, 2021, 7:21 PM EDT (23:21 UTC)
Expired
Sep 7, 2021, 8:00 PM EDT
In force
39 min
Issued by
NWS Atlanta, GA
Hail
0.25 in
Wind
40

Counties Bartow County, GA, Chattooga County, GA, Floyd County, GA, Gordon County, GA, Haralson County, GA, Paulding County, GA, Polk County, GA

The radar

The Northeast Alabama radar (KHTX), 102 km from the middle of the area, began a volume at 23:21 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, 11.4 hours before the alert went out and 132 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 2021-09-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 847 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 2021-09-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 57 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
847 J/kg
Mixed-layer CIN
-48 J/kg
Mixed-layer LCL
878 m above ground
0-6 km bulk shear
9 kt
0-1 km storm-relative helicity
57 m²/s²
0-3 km storm-relative helicity
93 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

357 
WWUS82 KFFC 072321
SPSFFC

Special Weather Statement
National Weather Service Peachtree City GA
721 PM EDT Tue Sep 7 2021
 
GAZ002-011-012-019-020-030-031-041-042-080000-
Chattooga GA-Polk GA-Walker GA-Gordon GA-Haralson GA-Bartow GA-
Carroll GA-Paulding GA-Floyd GA-
721 PM EDT Tue Sep 7 2021

...Strong thunderstorms will impact portions of Paulding, Haralson,
northwestern Carroll, Floyd, southeastern Walker, western Gordon,
Polk, Chattooga and western Bartow Counties through 800 PM EDT...

At 720 PM EDT, a line of strong thunderstorms extended from near 
Armuchee to near Lindale to Antioch to near Mount Zion, moving north 
at 15 mph.

HAZARD...Winds up to 40 mph, pea sized hail, frequent 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...
Rome, Cartersville, Calhoun, Dallas, Cedartown, Summerville,
Buchanan, Villa Rica, Bremen, Adairsville, Temple, Rockmart,
Euharlee, Hiram, Tallapoosa, Trion, Mount Zion, Aragon, Cave Spring
and Kingston.

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 3448 8542 3459 8531 3460 8513 3472 8517
      3472 8505 3462 8505 3461 8501 3457 8500
      3456 8485 3386 8476 3353 8530 3426 8543
TIME...MOT...LOC 2320Z 195DEG 13KT 3441 8516 3422 8511 3396 8514 3367
8525

MAX HAIL SIZE...0.25 IN
MAX WIND GUST...40 MPH

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 7, 2:54 PM EDTSpecial Weather StatementFFCFulton36 min
Sep 7, 5:23 PM EDTSpecial Weather StatementFFCWarren37 min
Sep 7, 5:29 PM EDTSpecial Weather StatementFFCBartow31 min
Sep 7, 6:29 PM EDTSpecial Weather StatementFFCBartow31 min
Sep 7, 6:51 PM EDTSpecial Weather StatementFFCPolk24 min
Sep 7, 7:17 PM EDTSpecial Weather StatementFFCGreene, Oglethorpe28 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.