Alert archive / South Carolina / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 19, NWS Columbia, SC

May 3, 2021Kershaw County, Richland County, Sumter County, South Carolina

NWS Columbia, SC issued this severe thunderstorm warning at May 3, 2021, 4:03 PM EDT for Kershaw County, Richland County, Sumter County, South Carolina. It was in force for 27 min. 2 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
May 3, 2021, 4:03 PM EDT (20:03 UTC)
Expired
May 3, 2021, 4:30 PM EDT
In force
27 min
Issued by
NWS Columbia, SC
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Kershaw County, SC, Richland County, SC, Sumter County, SC

The radar

The Columbia radar (KCAE), 57 km from the middle of the area, began a volume at 20:03 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.

What was reported inside it

TimeReportWhereRemark
May 3, 4:17 PM EDTTSTM WND DMG2 Sw Rembert, SCCORRECTS TIME FOR PREVIOUS TSTM WND DMG REPORT FROM 2 SW REMBERT. SC HWY PATROL REPORTED TREE DOWN IN ROADWAY BLOCKING ALL LANES AT HORATIO HAGOOD RD AND SC261.
May 3, 4:36 PM EDTTSTM WND DMG2 Sw Rembert, SCSC HWY PATROL REPORTED TREE DOWN IN ROADWAY BLOCKING ALL LANES AT HORATIO HAGOOD RD AND SC261.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
May 3, 1:25 PM EDTTornado WatchSPC6 hr

The nearest sounding before it

Charleston AFB, SC (KCHS), launched 12:00Z, 8.1 hours before the alert went out and 141 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 2021-05-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1333 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Charleston AFB, SC at 12:00Z on 2021-05-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 128 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
1333 J/kg
Mixed-layer CIN
-30 J/kg
Mixed-layer LCL
765 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
128 m²/s²
0-3 km storm-relative helicity
141 m²/s²
Significant tornado parameter
0.9
Supercell composite
5.0

Open this sounding in Storm Lab

The text

As transmitted.

592 
WUUS52 KCAE 032003
SVRCAE
SCC055-079-085-032030-
/O.NEW.KCAE.SV.W.0019.210503T2003Z-210503T2030Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Columbia SC
403 PM EDT Mon May 3 2021

The National Weather Service in Columbia has issued a

* Severe Thunderstorm Warning for...
  Northwestern Sumter County in central South Carolina...
  East central Richland County in central South Carolina...
  South central Kershaw County in central South Carolina...

* Until 430 PM EDT.

* At 403 PM EDT, a severe thunderstorm was located 8 miles southeast
  of Elgin, or 11 miles northeast of McEntire Air Base, moving east
  at 25 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...
  Sumter, Oakland, Boykin, Dinkins Mill, Wateree River Correctional
  Institution, Rembert, Fort Jackson McCrady Training Center, Dalzell
  and Stateburg.

This includes Interstate 20 in South Carolina between mile markers
101 and 103.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 700 PM EDT for central South
Carolina.

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

&&

LAT...LON 3399 8043 3398 8070 3411 8078 3424 8049
      3417 8047 3416 8048 3411 8048 3410 8046
TIME...MOT...LOC 2003Z 258DEG 23KT 3407 8071 

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

CRL
2 follow-up statements
640 
WWUS52 KCAE 032013
SVSCAE

Severe Weather Statement
National Weather Service Columbia SC
413 PM EDT Mon May 3 2021

SCC079-032023-
/O.CAN.KCAE.SV.W.0019.000000T0000Z-210503T2030Z/
Richland SC-
413 PM EDT Mon May 3 2021

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL RICHLAND COUNTY
IS CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

A Tornado Watch remains in effect until 700 PM EDT for central South
Carolina.

LAT...LON 3399 8043 3398 8064 3400 8065 3403 8060
      3406 8061 3408 8064 3410 8062 3409 8067
      3417 8064 3424 8049 3417 8047 3416 8048
      3411 8048 3410 8046
TIME...MOT...LOC 2013Z 258DEG 23KT 3408 8063 

$$

SCC055-085-032030-
/O.CON.KCAE.SV.W.0019.000000T0000Z-210503T2030Z/
Sumter SC-Kershaw SC-
413 PM EDT Mon May 3 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 430 PM EDT
FOR NORTHWESTERN SUMTER AND SOUTH CENTRAL KERSHAW COUNTIES...

At 413 PM EDT, a severe thunderstorm was located 10 miles northwest
of Oakland, or 11 miles northwest of Shaw Air Base, moving east at 25
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...
Sumter, Oakland, Boykin, Dinkins Mill, Wateree River Correctional
Institution, Rembert, Dalzell and Stateburg.

This includes Interstate 20 in South Carolina between mile markers
101 and 103.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 700 PM EDT for central South
Carolina.

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

&&

LAT...LON 3399 8043 3398 8064 3400 8065 3403 8060
      3406 8061 3408 8064 3410 8062 3409 8067
      3417 8064 3424 8049 3417 8047 3416 8048
      3411 8048 3410 8046
TIME...MOT...LOC 2013Z 258DEG 23KT 3408 8063 

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

CRL
915 
WWUS52 KCAE 032026
SVSCAE

Severe Weather Statement
National Weather Service Columbia SC
426 PM EDT Mon May 3 2021

SCC055-085-032035-
/O.EXP.KCAE.SV.W.0019.000000T0000Z-210503T2030Z/
Sumter SC-Kershaw SC-
426 PM EDT Mon May 3 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN SUMTER AND SOUTH
CENTRAL KERSHAW COUNTIES WILL EXPIRE AT 430 PM EDT...
        
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire.

A Tornado Watch remains in effect until 700 PM EDT for central South
Carolina.

LAT...LON 3399 8043 3398 8064 3400 8065 3403 8060
      3406 8061 3408 8064 3410 8062 3409 8067
      3417 8064 3424 8049 3417 8047 3416 8048
      3411 8048 3410 8046
TIME...MOT...LOC 2025Z 258DEG 23KT 3410 8054 

$$

CRL

The office that day

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

IssuedProductOfficeCountiesLasted
May 3, 2:35 PM EDTSpecial Weather StatementCAEMcCormick25 min
May 3, 3:05 PM EDTTornado WarningCAENewberry40 min
May 3, 3:24 PM EDTSevere Thunderstorm WarningCAENewberry, Saluda51 min
May 3, 3:28 PM EDTSevere Thunderstorm WarningCAELexington, Saluda32 min
May 3, 3:32 PM EDTSevere Thunderstorm WarningCAENewberry43 min
May 3, 3:39 PM EDTTornado WarningCAELexington21 min
May 3, 3:51 PM EDTSevere Thunderstorm WarningCAEMcCormick39 min
May 3, 3:59 PM EDTSevere Thunderstorm WarningCAELexington, Richland31 min
May 3, 4:05 PM EDTSevere Thunderstorm WarningCAELexington, Newberry, Richland, Saluda40 min
May 3, 4:19 PM EDTSevere Thunderstorm WarningCAEKershaw, Lee, Sumter26 min
May 3, 4:22 PM EDTSevere Thunderstorm WarningCAECalhoun, Kershaw, Lexington, Richland23 min
May 3, 4:30 PM EDTSevere Thunderstorm WarningCAELexington, Richland15 min
May 3, 4:41 PM EDTSevere Thunderstorm WarningCAELee, Sumter34 min
May 3, 4:44 PM EDTSevere Thunderstorm WarningCAEKershaw, Lee, Richland, Sumter31 min
May 3, 4:56 PM EDTAreal Flood AdvisoryCAELexington, Richland2 hr
May 3, 5:14 PM EDTSevere Thunderstorm WarningCAEClarendon, Lee, Richland, Sumter46 min
May 3, 5:50 PM EDTSpecial Weather StatementCAELee25 min
May 3, 6:01 PM EDTSevere Thunderstorm WarningCAEBamberg, Barnwell44 min
May 3, 6:44 PM EDTSevere Thunderstorm WarningCAEBamberg, Orangeburg46 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.