Alert archive / Georgia / Special Weather Statements in 2018

Special Weather Statement, NWS Atlanta, GA

July 16, 2018Carroll County, Georgia

NWS Atlanta, GA issued this special weather statement at Jul 16, 2018, 7:21 PM EDT for Carroll 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
Jul 16, 2018, 7:21 PM EDT (23:21 UTC)
Expired
Jul 16, 2018, 7:45 PM EDT
In force
24 min
Issued by
NWS Atlanta, GA
Wind
40

County Carroll County, GA

The radar

The Atlanta radar (KFFC), 46 km from the middle of the area, began a volume at 23:26 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 52 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 2018-07-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 842 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 2018-07-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 15 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
842 J/kg
Mixed-layer CIN
-26 J/kg
Mixed-layer LCL
638 m above ground
0-6 km bulk shear
10 kt
0-1 km storm-relative helicity
15 m²/s²
0-3 km storm-relative helicity
17 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

518 
WWUS82 KFFC 162321
SPSFFC

Special Weather Statement
National Weather Service Peachtree City GA
721 PM EDT MON JUL 16 2018
 
GAZ042-043-162345-
Douglas GA-Carroll GA-
721 PM EDT MON JUL 16 2018

...SIGNIFICANT WEATHER ADVISORY FOR WESTERN DOUGLAS AND CARROLL
COUNTIES UNTIL 745 PM EDT...

At 721 PM EDT...a strong thunderstorm was over Carrollton. This storm
was nearly stationary.

  HAZARD...Up to 40 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
Carrollton, Clem, Abilene, Lowell, Seaton Lake and Treasure Lake. 

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 3369 8510 3368 8485 3345 8497 3346 8498
      3344 8498 3343 8500 3343 8501 3354 8519
TIME...MOT...LOC 2321Z 278DEG 4KT 3357 8504 

WIND...40MPH

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 15, 9:02 PM EDTSpecial Weather StatementFFCHaralson28 min
Jul 15, 9:22 PM EDTSpecial Weather StatementFFCPaulding38 min
Jul 15, 9:27 PM EDTSpecial Weather StatementFFCHaralson33 min
Jul 15, 9:49 PM EDTSpecial Weather StatementFFCDouglas26 min
Jul 15, 10:08 PM EDTSpecial Weather StatementFFCHaralson, Paulding37 min
Jul 15, 10:16 PM EDTSpecial Weather StatementFFCDouglas29 min
Jul 15, 10:55 PM EDTSpecial Weather StatementFFCCobb35 min
Jul 16, 12:16 AM EDTSpecial Weather StatementFFCDawson, Lumpkin59 min
Jul 16, 12:20 AM EDTSpecial Weather StatementFFCDeKalb, Forsyth55 min
Jul 16, 1:10 AM EDTSpecial Weather StatementFFCDawson, Lumpkin80 min
Jul 16, 1:44 AM EDTRiver Flood WarningFFCFulton, Gwinnett2 hr
Jul 16, 1:07 PM EDTSpecial Weather StatementFFCUnion38 min
Jul 16, 1:37 PM EDTSpecial Weather StatementFFCWhitfield38 min
Jul 16, 1:39 PM EDTSpecial Weather StatementFFCUnion36 min
Jul 16, 2:11 PM EDTSpecial Weather StatementFFCGordon49 min
Jul 16, 2:15 PM EDTSpecial Weather StatementFFCCobb30 min
Jul 16, 2:32 PM EDTSpecial Weather StatementFFCGwinnett28 min
Jul 16, 2:51 PM EDTSpecial Weather StatementFFCBarrow24 min
Jul 16, 3:01 PM EDTSpecial Weather StatementFFCGwinnett29 min
Jul 16, 3:16 PM EDTSpecial Weather StatementFFCBarrow, Gwinnett, Walton29 min
Jul 16, 3:23 PM EDTSpecial Weather StatementFFCCatoosa37 min
Jul 16, 3:30 PM EDTSpecial Weather StatementFFCGwinnett30 min
Jul 16, 3:46 PM EDTSpecial Weather StatementFFCBarrow29 min
Jul 16, 4:12 PM EDTSpecial Weather StatementFFCRockdale33 min
Jul 16, 4:47 PM EDTSpecial Weather StatementFFCMontgomery, Toombs28 min
Jul 16, 5:00 PM EDTSpecial Weather StatementFFCWheeler30 min
Jul 16, 5:21 PM EDTSpecial Weather StatementFFCMontgomery24 min
Jul 16, 6:45 PM EDTSpecial Weather StatementFFCCarroll30 min
Jul 16, 7:45 PM EDTSpecial Weather StatementFFCCarroll30 min

Nearby

Special Weather Statements in Georgia, 2018Every special weather statement in 2018

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.