Alert archive / Georgia / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 8, NWS Charleston, SC

March 28, 2021Long County, Georgia

NWS Charleston, SC issued this severe thunderstorm warning at Mar 28, 2021, 7:56 PM EDT for Long County, Georgia. It was in force for 21 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
Mar 28, 2021, 7:56 PM EDT (23:56 UTC)
Expired
Mar 28, 2021, 8:17 PM EDT
In force
21 min
Issued by
NWS Charleston, SC
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

County Long County, GA

The radar

The Charleston,SC radar (KCLX), 121 km from the middle of the area, began a volume at 23:53 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

Jacksonville, FL (KJAX), launched 12:00Z, 11.9 hours before the alert went out and 143 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, Jacksonville, FL at 12:00Z on 2021-03-28Temperature 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, Jacksonville, FL at 12:00Z on 2021-03-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 131 square meters per square second.19395878Sfc1 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
1105 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
131 m²/s²
0-3 km storm-relative helicity
198 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

As transmitted.

065 
WUUS52 KCHS 282356
SVRCHS
GAC183-290045-
/O.NEW.KCHS.SV.W.0008.210328T2356Z-210329T0045Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Charleston SC
756 PM EDT Sun Mar 28 2021

The National Weather Service in Charleston has issued a

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

* Until 845 PM EDT.

* At 756 PM EDT, a severe thunderstorm was located near Donald,
  moving northeast at 55 mph.

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

  SOURCE...Radar indicated.

  IMPACT...Minor hail damage to vehicles is possible. Expect wind 
           damage to trees and powerlines.

* Locations impacted include...
  Ludowici, Walthourville and Donald. 

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 3190 8178 3188 8176 3187 8176 3178 8164
      3176 8164 3173 8158 3166 8182 3167 8185
      3171 8188 3173 8191 3175 8191 3176 8195
      3179 8195 3179 8198
TIME...MOT...LOC 2356Z 245DEG 49KT 3175 8191 

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

JRL
2 follow-up statements
067 
WWUS52 KCHS 290009
SVSCHS

Severe Weather Statement
National Weather Service Charleston SC
809 PM EDT Sun Mar 28 2021

GAC183-290045-
/O.CON.KCHS.SV.W.0008.000000T0000Z-210329T0045Z/
Long GA-
809 PM EDT Sun Mar 28 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 845 PM EDT
FOR LONG COUNTY...

At 808 PM EDT, a severe thunderstorm was located near Gum Branch,
moving east at 55 mph.

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

SOURCE...Radar indicated.

IMPACT...Expect damage to trees and powerlines.

Locations impacted include...
Ludowici, Walthourville and Donald. 

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 3190 8178 3188 8176 3187 8176 3178 8164
      3176 8164 3173 8158 3167 8179 3179 8190
TIME...MOT...LOC 0008Z 250DEG 47KT 3178 8172 

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

JRL
322 
WWUS52 KCHS 290017
SVSCHS

Severe Weather Statement
National Weather Service Charleston SC
817 PM EDT Sun Mar 28 2021

GAC183-290026-
/O.CAN.KCHS.SV.W.0008.000000T0000Z-210329T0045Z/
Long GA-
817 PM EDT Sun Mar 28 2021

...THE SEVERE THUNDERSTORM WARNING FOR LONG COUNTY IS CANCELLED...
        
The storm which prompted the warning has weakened below severe 
limits, and has exited the warned area. Therefore the warning has 
been cancelled.

LAT...LON 3190 8178 3188 8176 3187 8176 3178 8164
      3176 8164 3173 8158 3167 8179 3179 8190
TIME...MOT...LOC 0015Z 245DEG 49KT 3183 8160 

$$

JRL

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 28, 4:41 PM EDTSevere Thunderstorm WarningCHSJenkins, Screven49 min
Mar 28, 7:40 PM EDTSpecial Weather StatementCHSLong35 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.