Alert archive / Georgia / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 39, NWS Charleston, SC

July 18, 2021Bulloch County, Jenkins County, Georgia

NWS Charleston, SC issued this severe thunderstorm warning at Jul 18, 2021, 11:17 AM EDT for Bulloch County, Jenkins County, Georgia. It was in force for 43 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, 2021, 11:17 AM EDT (15:17 UTC)
Expired
Jul 18, 2021, 12:00 PM EDT
In force
43 min
Issued by
NWS Charleston, SC
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Bulloch County, GA, Jenkins County, GA

The radar

The Charleston,SC radar (KCLX), 90 km from the middle of the area, began a volume at 15:16 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

Charleston AFB, SC (KCHS), launched 12:00Z, 3.3 hours before the alert went out and 189 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, Charleston AFB, SC at 12:00Z on 2021-07-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 962 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, Charleston AFB, SC at 12:00Z on 2021-07-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 73 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
962 J/kg
Mixed-layer CIN
-70 J/kg
Mixed-layer LCL
983 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
73 m²/s²
0-3 km storm-relative helicity
100 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

604 
WUUS52 KCHS 181517
SVRCHS
GAC031-165-181600-
/O.NEW.KCHS.SV.W.0039.210718T1517Z-210718T1600Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Charleston SC
1117 AM EDT Sun Jul 18 2021

The National Weather Service in Charleston has issued a

* Severe Thunderstorm Warning for portions of...
  Bulloch County in southeastern Georgia...
  Jenkins County in southeastern Georgia...

* Until noon EDT.

* At 1116 AM EDT, a severe thunderstorm was located over Garfield,
  moving northeast at 15 mph.

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

  SOURCE...Radar indicated.

  IMPACT...Expect damage to trees and powerlines.

* Locations impacted include...
  Millen, Butts and Emmalane. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Report damage directly to the Charleston National Weather Service at
888-383-2024 when it is safe to do so.

&&

LAT...LON 3285 8199 3261 8183 3255 8203 3261 8200
      3266 8208 3275 8212
TIME...MOT...LOC 1516Z 230DEG 13KT 3265 8210 

HAIL...0.75IN
WIND...60MPH
 
$$
1 follow-up statement
069 
WWUS52 KCHS 181529
SVSCHS

Severe Weather Statement
National Weather Service Charleston SC
1129 AM EDT Sun Jul 18 2021

GAC031-165-181600-
/O.CON.KCHS.SV.W.0039.000000T0000Z-210718T1600Z/
Bulloch GA-Jenkins GA-
1129 AM EDT Sun Jul 18 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL NOON EDT FOR
BULLOCH AND JENKINS COUNTIES...

At 1129 AM EDT, severe thunderstorms were located along a line
extending from near Garfield to near Butts to near Portal, moving
east at 20 mph.

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

SOURCE...Radar indicated.

IMPACT...Expect damage to trees and powerlines.

Locations impacted include...
Millen, Butts and Emmalane. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3285 8199 3261 8183 3255 8203 3261 8200
      3266 8208 3275 8212
TIME...MOT...LOC 1529Z 252DEG 19KT 3272 8212 3268 8201 3259 8196 

HAIL...0.75IN
WIND...60MPH
 
$$

The office that day

Everything else NWS Charleston, SC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 18, 11:11 AM EDTSpecial Weather StatementCHSJenkins34 min
Jul 18, 11:43 AM EDTSevere Thunderstorm WarningCHSBulloch, Jenkins, Screven62 min
Jul 18, 12:17 PM EDTSevere Thunderstorm WarningCHSScreven43 min
Jul 18, 12:41 PM EDTSpecial Weather StatementCHSScreven34 min
Jul 18, 3:09 PM EDTSevere Thunderstorm WarningCHSBryan, Chatham55 min
Jul 18, 4:22 PM EDTSpecial Weather StatementCHSLiberty23 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2021Every severe thunderstorm warning 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.