Alert archive / South Carolina / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 25, NWS Columbia, SC

May 3, 2021Lee County, Sumter County, South Carolina

NWS Columbia, SC issued this severe thunderstorm warning at May 3, 2021, 4:41 PM EDT for Lee County, Sumter County, South Carolina. It was in force for 34 min. 3 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, 4:41 PM EDT (20:41 UTC)
Expired: May 3, 2021, 5:15 PM EDT
In force: 34 min
Issued by: NWS Columbia, SC
Area: Storm-based polygon
Hail: 1.25 in
Wind: 60.0 mph

Counties Lee County, SC, Sumter County, SC

The radar

The Columbia radar (KCAE), 94 km from the middle of the area, began a volume at 20:39 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

Time	Report	Where	Remark
May 3, 4:45 PM EDT	TSTM WND DMG	6 Ne Oswego, SC	REPORT OF 3 TREES DOWN ON A ROADWAY AND 1 POWER LINE DOWN IN THE MANVILLE-ST. CHARLES ROAD AREA BETWEEN ST. CHARLES ROAD AND DOG ISLAND ROAD.
May 3, 4:45 PM EDT	HAIL 0.5	6 Ne Oswego, SC	PICTURE OF SMALL HAIL SENT IN FROM THE LEE COUNTY EM.
May 3, 4:55 PM EDT	HAIL 1.75	Lynchburg, SC	TWEET AND PHOTO SENT IN REPORTING UP TO GOLF BALL SIZED HAIL.

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.

Issued	Product	Office	Lasted
May 3, 1:25 PM EDT	Tornado Watch	SPC	6 hr

The nearest sounding before it

Charleston AFB, SC (KCHS), launched 12:00Z, 8.7 hours before the alert went out and 131 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: 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.

216 
WUUS52 KCAE 032041
SVRCAE
SCC061-085-032115-
/O.NEW.KCAE.SV.W.0025.210503T2041Z-210503T2115Z/

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

The National Weather Service in Columbia has issued a

* Severe Thunderstorm Warning for...
  Southern Lee County in central South Carolina...
  Northeastern Sumter County in central South Carolina...

* Until 515 PM EDT.

* At 440 PM EDT, a severe thunderstorm was located near Sumter County
  Airport, or 9 miles north of Sumter, moving east at 50 mph.

  HAZARD...60 mph wind gusts and half dollar size hail.

  SOURCE...Radar indicated.

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees.

* Locations impacted include...
  Mulberry, Lee State Park, Elliott, Mayesville, Lynchburg, Ashwood,
  Oswego, Manville, St. Charles and Wisacky.

This includes the following highways...
 Interstate 20 in South Carolina between mile markers 116 and 126.
 Interstate 95 between mile markers 142 and 146.

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 3394 8034 3417 8039 3424 8012 3420 8011
      3416 8016 3415 8015 3409 8008 3408 8003
      3402 7996 3402 7995 3401 7991 3399 7990
TIME...MOT...LOC 2040Z 253DEG 43KT 3406 8033 

HAIL...1.25IN
WIND...60MPH
 
$$

CRL

3 follow-up statements

005 
WWUS52 KCAE 032048
SVSCAE

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

SCC061-085-032115-
/O.CON.KCAE.SV.W.0025.000000T0000Z-210503T2115Z/
Lee SC-Sumter SC-
448 PM EDT Mon May 3 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 515 PM EDT
FOR SOUTHERN LEE AND NORTHEASTERN SUMTER COUNTIES...

At 447 PM EDT, a severe thunderstorm was located near Elliott, or 9
miles south of Bishopville, moving east at 50 mph.

HAZARD...Golf ball size hail and 60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...People and animals outdoors will be injured. Expect hail 
         damage to roofs, siding, windows, and vehicles. Expect wind 
         damage to roofs, siding, and trees.

Locations impacted include...
Mulberry, Lee State Park, Elliott, Mayesville, Lynchburg, Ashwood,
Oswego, Manville, St. Charles and Wisacky.

This includes the following highways...
 Interstate 20 in South Carolina between mile markers 116 and 126.
 Interstate 95 between mile markers 142 and 146.

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 3394 8034 3417 8039 3424 8012 3420 8011
      3416 8016 3415 8015 3409 8008 3408 8003
      3402 7996 3402 7995 3401 7991 3399 7990
TIME...MOT...LOC 2047Z 253DEG 43KT 3409 8022 

HAIL...1.75IN
WIND...60MPH
 
$$

CRL

514 
WWUS52 KCAE 032053
SVSCAE

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

SCC085-032102-
/O.CAN.KCAE.SV.W.0025.000000T0000Z-210503T2115Z/
Sumter SC-
453 PM EDT Mon May 3 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN SUMTER 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 3401 8003 3401 8007 3396 8018 3400 8019
      3399 8025 3403 8026 3404 8030 3408 8032
      3419 8031 3424 8012 3420 8011 3416 8016
      3409 8008 3408 8003 3404 8000
TIME...MOT...LOC 2052Z 253DEG 43KT 3411 8014 

$$

SCC061-032115-
/O.CON.KCAE.SV.W.0025.000000T0000Z-210503T2115Z/
Lee SC-
453 PM EDT Mon May 3 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 515 PM EDT
FOR SOUTHEASTERN LEE COUNTY...

At 452 PM EDT, a severe thunderstorm was located over Elliott, or 9
miles southeast of Bishopville, moving east at 50 mph.

HAZARD...Two inch or greater hail and 60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...People and animals outdoors will be injured. Expect hail 
         damage to roofs, siding, windows, and vehicles. Expect wind 
         damage to roofs, siding, and trees.

Locations impacted include...
Lee State Park, Elliott, Lynchburg, Ashwood, Manville, St. Charles
and Wisacky.

This includes Interstate 20 in South Carolina between mile markers
116 and 126.
 
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.

This is a dangerous storm! Prepare immediately for large destructive
hail capable of producing significant damage. Seek shelter inside a
sturdy building and stay away from windows.

&&

LAT...LON 3401 8003 3401 8007 3396 8018 3400 8019
      3399 8025 3403 8026 3404 8030 3408 8032
      3419 8031 3424 8012 3420 8011 3416 8016
      3409 8008 3408 8003 3404 8000
TIME...MOT...LOC 2052Z 253DEG 43KT 3411 8014 

HAIL...2.00IN
WIND...60MPH
 
$$

CRL

150 
WWUS52 KCAE 032110
SVSCAE

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

SCC061-032120-
/O.EXP.KCAE.SV.W.0025.000000T0000Z-210503T2115Z/
Lee SC-
510 PM EDT Mon May 3 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN LEE COUNTY WILL
EXPIRE AT 515 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 3401 8003 3401 8007 3396 8018 3400 8019
      3399 8025 3403 8026 3404 8030 3408 8032
      3419 8031 3424 8012 3420 8011 3416 8016
      3409 8008 3408 8003 3404 8000
TIME...MOT...LOC 2110Z 253DEG 43KT 3417 7991 

$$

CRL

The office that day

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

Issued	Product	Office	Counties	Lasted
May 3, 2:35 PM EDT	Special Weather Statement	CAE	McCormick	25 min
May 3, 3:05 PM EDT	Tornado Warning	CAE	Newberry	40 min
May 3, 3:24 PM EDT	Severe Thunderstorm Warning	CAE	Newberry, Saluda	51 min
May 3, 3:28 PM EDT	Severe Thunderstorm Warning	CAE	Lexington, Saluda	32 min
May 3, 3:32 PM EDT	Severe Thunderstorm Warning	CAE	Newberry	43 min
May 3, 3:39 PM EDT	Tornado Warning	CAE	Lexington	21 min
May 3, 3:51 PM EDT	Severe Thunderstorm Warning	CAE	McCormick	39 min
May 3, 3:59 PM EDT	Severe Thunderstorm Warning	CAE	Lexington, Richland	31 min
May 3, 4:03 PM EDT	Severe Thunderstorm Warning	CAE	Kershaw, Richland, Sumter	27 min
May 3, 4:05 PM EDT	Severe Thunderstorm Warning	CAE	Lexington, Newberry, Richland, Saluda	40 min
May 3, 4:19 PM EDT	Severe Thunderstorm Warning	CAE	Kershaw, Lee, Sumter	26 min
May 3, 4:22 PM EDT	Severe Thunderstorm Warning	CAE	Calhoun, Kershaw, Lexington, Richland	23 min
May 3, 4:30 PM EDT	Severe Thunderstorm Warning	CAE	Lexington, Richland	15 min
May 3, 4:44 PM EDT	Severe Thunderstorm Warning	CAE	Kershaw, Lee, Richland, Sumter	31 min
May 3, 4:56 PM EDT	Areal Flood Advisory	CAE	Lexington, Richland	2 hr
May 3, 5:14 PM EDT	Severe Thunderstorm Warning	CAE	Clarendon, Lee, Richland, Sumter	46 min
May 3, 5:50 PM EDT	Special Weather Statement	CAE	Lee	25 min
May 3, 6:01 PM EDT	Severe Thunderstorm Warning	CAE	Bamberg, Barnwell	44 min
May 3, 6:44 PM EDT	Severe Thunderstorm Warning	CAE	Bamberg, Orangeburg	46 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.