Alert archive / Georgia / Special Weather Statements in 2017

Special Weather Statement, NWS Atlanta, GA

May 12, 2017Bartow County, Georgia

NWS Atlanta, GA issued this special weather statement at May 12, 2017, 4:21 PM EDT for Bartow 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
May 12, 2017, 4:21 PM EDT (20:21 UTC)
Expired
May 12, 2017, 4:45 PM EDT
In force
24 min
Issued by
NWS Atlanta, GA
Hail
0.25 in
Wind
40

County Bartow County, GA

The radar

The Atlanta radar (KFFC), 83 km from the middle of the area, began a volume at 20:21 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, 8.4 hours before the alert went out and 85 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 2017-05-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2017-05-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -24 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1299 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
-24 m²/s²
0-3 km storm-relative helicity
99 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

259 
WWUS82 KFFC 122021
SPSFFC

Special Weather Statement
National Weather Service Peachtree City GA
421 PM EDT FRI MAY 12 2017
 
GAZ020-030>032-122045-
Polk GA-Cobb GA-Bartow GA-Paulding GA-
421 PM EDT FRI MAY 12 2017

...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN POLK...NORTHWESTERN
COBB...SOUTHERN BARTOW AND NORTHEASTERN PAULDING COUNTIES UNTIL 445
PM EDT...

At 420 PM EDT...a strong thunderstorm was over Taylorsville, or 11
miles northwest of Dallas...moving northeast at 20 mph.

  HAZARD...Up to 40 mph wind...pea sized hail and frequent cloud to 
           ground lightning. 

  IMPACT...Expect minor damage to tree limbs and blowing around of 
           light...unsecured objects. 

Some locations in the path of this storm include
Cartersville, Acworth, Rockmart, Euharlee, Emerson, Aragon, Braswell,
Taylorsville, Burnt Hickory Ridge and Stilesboro.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People outdoors should seek shelter immediately. If you can hear
thunder...you are close enough to be struck by lightning.

LAT...LON 3397 8501 3406 8506 3422 8483 3406 8465
TIME...MOT...LOC 2020Z 232DEG 18KT 3405 8497 

HAIL...0.25IN
WIND...40MPH

$$

The office that day

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

IssuedProductOfficeCountiesLasted
May 12, 2:17 PM EDTSpecial Weather StatementFFCCatoosa, Walker28 min
May 12, 3:46 PM EDTSpecial Weather StatementFFCPolk29 min
May 12, 4:13 PM EDTSpecial Weather StatementFFCHaralson47 min
May 12, 4:46 PM EDTSpecial Weather StatementFFCCherokee44 min
May 12, 5:22 PM EDTSpecial Weather StatementFFCCobb, Paulding23 min
May 12, 5:45 PM EDTSpecial Weather StatementFFCForsyth30 min
May 12, 6:11 PM EDTSpecial Weather StatementFFCGwinnett34 min
May 12, 6:15 PM EDTSevere Thunderstorm WarningFFCDeKalb, Gwinnett30 min
May 12, 6:25 PM EDTSpecial Weather StatementFFCHall50 min
May 12, 6:43 PM EDTSevere Thunderstorm WarningFFCBarrow, Gwinnett47 min
May 12, 7:01 PM EDTSpecial Weather StatementFFCBanks29 min
May 12, 7:47 PM EDTSpecial Weather StatementFFCChattooga43 min

Nearby

Special Weather Statements in Georgia, 2017Every special weather statement in 2017

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.