Alert archive / South Carolina / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 48, NWS Columbia, SC

June 12, 2021Orangeburg County, South Carolina

NWS Columbia, SC issued this severe thunderstorm warning at Jun 12, 2021, 1:43 PM EDT for Orangeburg County, South Carolina. It was in force for 47 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
Jun 12, 2021, 1:43 PM EDT (17:43 UTC)
Expired
Jun 12, 2021, 2:30 PM EDT
In force
47 min
Issued by
NWS Columbia, SC
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

County Orangeburg County, SC

The radar

The Columbia radar (KCAE), 68 km from the middle of the area, began a volume at 17:45 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, 5.7 hours before the alert went out and 94 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 2021-06-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 313 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 2021-06-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -4 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
313 J/kg
Mixed-layer CIN
-83 J/kg
Mixed-layer LCL
790 m above ground
0-6 km bulk shear
10 kt
0-1 km storm-relative helicity
-4 m²/s²
0-3 km storm-relative helicity
-20 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

564 
WUUS52 KCAE 121743
SVRCAE
SCC075-121830-
/O.NEW.KCAE.SV.W.0048.210612T1743Z-210612T1830Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Columbia SC
143 PM EDT Sat Jun 12 2021

The National Weather Service in Columbia has issued a

* Severe Thunderstorm Warning for...
  Central Orangeburg County in central South Carolina...

* Until 230 PM EDT.

* At 143 PM EDT, severe thunderstorms were located along a line
  extending from 13 miles west of Edisto Gardens to Orangeburg County
  Airport to 7 miles north of Bowman, moving south 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...
  Orangeburg, Brookdale, Branchville, Bowman, Orangeburg County
  Airport, Claflin College, Edisto Gardens, South Carolina State
  University, Neeses, Norway, Rowesville, Cordova, Livingston, Cope,
  Yonder Field, Wilkinson Heights and Edisto.

This includes the following highways...
 Interstate 26 between mile markers 150 and 168.
 Interstate 95 between mile markers 86 and 89.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection seek shelter inside a sturdy building and stay
away from windows.

&&

LAT...LON 3323 8085 3331 8094 3335 8105 3338 8108
      3341 8118 3358 8115 3352 8089 3351 8070
      3347 8066 3347 8061 3351 8062 3333 8049
      3333 8051 3321 8080
TIME...MOT...LOC 1743Z 343DEG 6KT 3353 8110 3346 8087 3346 8068 

HAIL...1.00IN
WIND...60MPH
 
$$
1 follow-up statement
091 
WWUS52 KCAE 121816
SVSCAE

Severe Weather Statement
National Weather Service Columbia SC
216 PM EDT Sat Jun 12 2021

SCC075-121830-
/O.CON.KCAE.SV.W.0048.000000T0000Z-210612T1830Z/
Orangeburg SC-
216 PM EDT Sat Jun 12 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 230 PM EDT
FOR SOUTHWESTERN ORANGEBURG COUNTY...

At 216 PM EDT, severe thunderstorms were located along a line
extending from 10 miles northeast of Denmark to near Orangeburg
County Airport to near Bowman, moving south at 15 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...
Branchville, Bowman, Norway, Rowesville, Cordova and Cope. 

This includes the following highways...
 Interstate 26 between mile markers 159 and 168.
 Interstate 95 between mile markers 86 and 89.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection seek shelter inside a sturdy building and stay
away from windows.

Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways or
walk through high water.

&&

LAT...LON 3323 8085 3331 8094 3335 8105 3338 8108
      3341 8118 3348 8117 3340 8054 3333 8049
      3333 8051 3321 8080
TIME...MOT...LOC 1816Z 340DEG 14KT 3345 8107 3338 8084 3338 8065 

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

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 11, 8:40 PM EDTSpecial Weather StatementCAERichland35 min
Jun 12, 1:36 PM EDTSpecial Weather StatementCAEOrangeburg24 min
Jun 12, 2:04 PM EDTSpecial Weather StatementCAEMcCormick56 min
Jun 12, 2:21 PM EDTSevere Thunderstorm WarningCAENewberry39 min
Jun 12, 2:53 PM EDTSpecial Weather StatementCAEEdgefield52 min
Jun 12, 3:28 PM EDTSpecial Weather StatementCAELexington32 min
Jun 12, 3:34 PM EDTSevere Thunderstorm WarningCAEFairfield, Lexington, Newberry, Richland26 min
Jun 12, 4:40 PM EDTSpecial Weather StatementCAECalhoun35 min
Jun 12, 5:08 PM EDTSpecial Weather StatementCAECalhoun, Orangeburg37 min

Nearby

Severe Thunderstorm Warnings in South Carolina, 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.