Alert archive / South Carolina / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 69, NWS Columbia, SC

August 11, 2021Fairfield County, Newberry County, South Carolina

NWS Columbia, SC issued this severe thunderstorm warning at Aug 11, 2021, 2:22 PM EDT for Fairfield County, Newberry County, South Carolina. 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: Aug 11, 2021, 2:22 PM EDT (18:22 UTC)
Expired: Aug 11, 2021, 2:45 PM EDT
In force: 23 min
Issued by: NWS Columbia, SC
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Fairfield County, SC, Newberry County, SC

The radar

The Columbia radar (KCAE), 68 km from the middle of the area, began a volume at 18:25 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

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 6.4 hours before the alert went out and 217 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 653 J/kg
Mixed-layer CIN: -106 J/kg
Mixed-layer LCL: 1352 m above ground
0-6 km bulk shear: 2 kt
0-1 km storm-relative helicity: -15 m²/s²
0-3 km storm-relative helicity: -21 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

928 
WUUS52 KCAE 111822
SVRCAE
SCC039-071-111845-
/O.NEW.KCAE.SV.W.0069.210811T1822Z-210811T1845Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Columbia SC
222 PM EDT Wed Aug 11 2021

The National Weather Service in Columbia has issued a

* Severe Thunderstorm Warning for...
  Northwestern Fairfield County in central South Carolina...
  Northeastern Newberry County in central South Carolina...

* Until 245 PM EDT.

* At 222 PM EDT, a severe thunderstorm was located 7 miles southeast
  of Carlisle, or 15 miles southwest of Chester, and is nearly
  stationary.

  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...
  Blackstock, Henderson Island and Feasterville Fire Station. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3457 8125 3456 8114 3441 8142 3449 8144
      3450 8142 3455 8143 3457 8142
TIME...MOT...LOC 1822Z 350DEG 1KT 3452 8137 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

CRL

1 follow-up statement

729 
WWUS52 KCAE 111840
SVSCAE

Severe Weather Statement
National Weather Service Columbia SC
240 PM EDT Wed Aug 11 2021

SCC039-071-111849-
/O.EXP.KCAE.SV.W.0069.000000T0000Z-210811T1845Z/
Fairfield SC-Newberry SC-
240 PM EDT Wed Aug 11 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN FAIRFIELD AND
NORTHEASTERN NEWBERRY COUNTIES WILL EXPIRE AT 245 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.

To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Columbia.

LAT...LON 3457 8125 3456 8114 3441 8142 3449 8144
      3450 8142 3455 8143 3457 8142
TIME...MOT...LOC 1839Z 350DEG 1KT 3452 8137 

$$

CRL

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 11, 1:50 PM EDT	Special Weather Statement	CAE	Bamberg	25 min
Aug 11, 2:17 PM EDT	Special Weather Statement	CAE	Calhoun	28 min
Aug 11, 2:28 PM EDT	Special Weather Statement	CAE	Richland	32 min
Aug 11, 2:53 PM EDT	Special Weather Statement	CAE	Orangeburg	37 min
Aug 11, 3:43 PM EDT	Special Weather Statement	CAE	Lee	32 min
Aug 11, 4:07 PM EDT	Special Weather Statement	CAE	Fairfield	23 min
Aug 11, 4:56 PM EDT	Special Weather Statement	CAE	Lancaster	34 min
Aug 11, 5:08 PM EDT	Special Weather Statement	CAE	Newberry	37 min
Aug 11, 5:26 PM EDT	Special Weather Statement	CAE	McCormick	49 min

Nearby

Severe Thunderstorm Warnings in South Carolina, 2021 Every 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.