Alert archive / Georgia / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 328, NWS Atlanta, GA

September 29, 2018Wilcox County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Sep 29, 2018, 4:22 PM EDT for Wilcox County, Georgia. It was in force for 38 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 29, 2018, 4:22 PM EDT (20:22 UTC)
Expired
Sep 29, 2018, 5:00 PM EDT
In force
38 min
Issued by
NWS Atlanta, GA
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

County Wilcox County, GA

The radar

The Robins AFB radar (KJGX), 76 km from the middle of the area, began a volume at 20:26 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, 8.4 hours before the alert went out and 177 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 2018-09-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 326 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 2018-09-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -2 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
326 J/kg
Mixed-layer CIN
-38 J/kg
Mixed-layer LCL
811 m above ground
0-6 km bulk shear
5 kt
0-1 km storm-relative helicity
-2 m²/s²
0-3 km storm-relative helicity
13 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

397 
WUUS52 KFFC 292022
SVRFFC
GAC315-292100-
/O.NEW.KFFC.SV.W.0328.180929T2022Z-180929T2100Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Peachtree City GA
422 PM EDT SAT SEP 29 2018

The National Weather Service in Peachtree City has issued a

* Severe Thunderstorm Warning for...
  Western Wilcox County in central Georgia...

* Until 500 PM EDT.

* At 421 PM EDT, a severe thunderstorm was located over Pleasant
  View, or 11 miles east of Cordele, moving east at 5 mph.

  HAZARD...60 mph wind gusts and quarter size hail.

  SOURCE...Radar indicated.

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees.

* Locations impacted include...
  Rochelle, Pineview, Pitts, Pope City, Pleasant View and Seville. 

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 3195 8361 3210 8361 3211 8342 3200 8340
      3191 8351
TIME...MOT...LOC 2021Z 270DEG 6KT 3201 8358 

HAIL...1.00IN
WIND...60MPH
 
$$

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 29, 2:44 PM EDTSpecial Weather StatementFFCGlascock46 min
Sep 29, 4:14 PM EDTSpecial Weather StatementFFCDooly, Houston, Wilcox61 min
Sep 29, 4:48 PM EDTSpecial Weather StatementFFCWilcox27 min
Sep 29, 4:51 PM EDTSpecial Weather StatementFFCPulaski24 min
Sep 29, 5:08 PM EDTSevere Thunderstorm WarningFFCWilcox37 min
Sep 29, 5:34 PM EDTSpecial Weather StatementFFCCrawford26 min
Sep 29, 5:46 PM EDTSpecial Weather StatementFFCWilcox29 min
Sep 29, 5:53 PM EDTSevere Thunderstorm WarningFFCDodge, Telfair, Wilcox37 min
Sep 29, 6:31 PM EDTSpecial Weather StatementFFCCrawford59 min
Sep 29, 6:42 PM EDTSpecial Weather StatementFFCUpson63 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.