Alert archive / Georgia / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 233, NWS Atlanta, GA

July 18, 2018Dodge County, Laurens County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Jul 18, 2018, 7:22 PM EDT for Dodge County, Laurens County, Georgia. It was in force for 23 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 18, 2018, 7:22 PM EDT (23:22 UTC)
Expired
Jul 18, 2018, 7:45 PM EDT
In force
23 min
Issued by
NWS Atlanta, GA
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Dodge County, GA, Laurens County, GA

The radar

The Robins AFB radar (KJGX), 33 km from the middle of the area, began a volume at 23:22 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 164 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 2018-07-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 147 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 2018-07-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 12 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
147 J/kg
Mixed-layer CIN
-113 J/kg
Mixed-layer LCL
1090 m above ground
0-6 km bulk shear
6 kt
0-1 km storm-relative helicity
12 m²/s²
0-3 km storm-relative helicity
14 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

650 
WUUS52 KFFC 182322
SVRFFC
GAC091-175-182345-
/O.NEW.KFFC.SV.W.0233.180718T2322Z-180718T2345Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Peachtree City GA
722 PM EDT WED JUL 18 2018

The National Weather Service in Peachtree City has issued a

* Severe Thunderstorm Warning for...
  West central Laurens County in central Georgia...
  North central Dodge County in central Georgia...

* Until 745 PM EDT.

* At 722 PM EDT, a severe thunderstorm was located over Dexter, or 11
  miles southwest of Dublin, and is nearly stationary.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...Expect damage to roofs, siding, and trees.

* Locations impacted include...
  Dublin, Chester, Dexter, Dudley, Cadwell, Rentz, Montrose, Harlow
  and Rowland.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

If you see wind damage...hail or flooding...wait until the storm has
passed...and then call the National Weather Service toll free
at 1 8 6 6 7 6 3 4 4 6 6 or tweet us your report at NWSATLANTA.

&&

LAT...LON 3243 8320 3245 8318 3245 8317 3244 8315
      3252 8319 3255 8319 3254 8290 3230 8290
      3230 8321
TIME...MOT...LOC 2322Z 084DEG 2KT 3244 8305 

HAIL...<.75IN
WIND...60MPH
 
$$
1 follow-up statement
184 
WWUS52 KFFC 182344
SVSFFC

Severe Weather Statement
National Weather Service Peachtree City GA
744 PM EDT WED JUL 18 2018

GAC091-175-182353-
/O.EXP.KFFC.SV.W.0233.000000T0000Z-180718T2345Z/
Laurens GA-Dodge GA-
744 PM EDT WED JUL 18 2018

...THE SEVERE THUNDERSTORM WARNING FOR WEST CENTRAL LAURENS AND NORTH
CENTRAL DODGE COUNTIES WILL EXPIRE AT 745 PM EDT...
                
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire.

LAT...LON 3243 8320 3245 8318 3245 8317 3244 8315
      3252 8319 3255 8319 3254 8290 3230 8290
      3230 8321
TIME...MOT...LOC 2343Z 084DEG 2KT 3244 8306 

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 17, 8:39 PM EDTSpecial Weather StatementFFCOglethorpe36 min
Jul 17, 9:04 PM EDTSpecial Weather StatementFFCWheeler41 min
Jul 17, 10:43 PM EDTSpecial Weather StatementFFCWilkes32 min
Jul 18, 3:13 PM EDTSpecial Weather StatementFFCWheeler32 min
Jul 18, 6:34 PM EDTSpecial Weather StatementFFCHouston26 min
Jul 18, 6:48 PM EDTSpecial Weather StatementFFCLaurens42 min
Jul 18, 7:09 PM EDTSpecial Weather StatementFFCBleckley, Houston, Peach51 min
Jul 18, 7:49 PM EDTSpecial Weather StatementFFCUpson41 min
Jul 18, 7:50 PM EDTSpecial Weather StatementFFCDodge, Laurens40 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2018Every severe thunderstorm warning 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.