Alert archive / South Carolina / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 5, NWS Columbia, SC

March 25, 2021Chesterfield County, South Carolina

NWS Columbia, SC issued this severe thunderstorm warning at Mar 25, 2021, 7:14 PM EDT for Chesterfield County, South Carolina. It was in force for 15 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 25, 2021, 7:14 PM EDT (23:14 UTC)
Expired: Mar 25, 2021, 7:29 PM EDT
In force: 15 min
Issued by: NWS Columbia, SC
Area: Storm-based polygon
Tornado: Possible
Hail: 1.0 in
Wind: 60.0 mph

County Chesterfield County, SC

The radar

The Columbia radar (KCAE), 140 km from the middle of the area, began a volume at 23:15 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, 11.2 hours before the alert went out and 156 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: 1 J/kg
Mixed-layer CIN: -122 J/kg
Mixed-layer LCL: 703 m above ground
0-6 km bulk shear: 20 kt
0-1 km storm-relative helicity: 27 m²/s²
0-3 km storm-relative helicity: 36 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

744 
WUUS52 KCAE 252314
SVRCAE
SCC025-252345-
/O.NEW.KCAE.SV.W.0005.210325T2314Z-210325T2345Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Columbia SC
714 PM EDT Thu Mar 25 2021

The National Weather Service in Columbia has issued a

* Severe Thunderstorm Warning for...
  Northeastern Chesterfield County in central South Carolina...

* Until 745 PM EDT.

* At 714 PM EDT, a severe thunderstorm was located over Cheraw,
  moving east at 55 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...
  Cheraw, Chesterfield, Cheraw Municipal Airport, Cheraw State Park,
  Northeastern Technical College and Cheraw Fish Hatchery.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3461 7980 3459 7981 3458 8001 3481 8008
      3481 7994 3476 7993 3474 7989 3468 7986
      3466 7983 3465 7980 3464 7980 3461 7978
TIME...MOT...LOC 2314Z 262DEG 49KT 3469 7992 

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

JAQ

1 follow-up statement

315 
WWUS52 KCAE 252329
SVSCAE

Severe Weather Statement
National Weather Service Columbia SC
729 PM EDT Thu Mar 25 2021

SCC025-252339-
/O.CAN.KCAE.SV.W.0005.000000T0000Z-210325T2345Z/
Chesterfield SC-
729 PM EDT Thu Mar 25 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN CHESTERFIELD
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.

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

LAT...LON 3461 7980 3459 7981 3458 8001 3481 8008
      3481 7994 3476 7993 3474 7989 3468 7986
      3466 7983 3465 7980 3464 7980 3461 7978
TIME...MOT...LOC 2327Z 262DEG 49KT 3472 7967 

$$

JAQ

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 25, 4:54 PM EDT	Tornado Warning	CAE	Fairfield, Newberry	36 min
Mar 25, 5:48 PM EDT	Severe Thunderstorm Warning	CAE	Chesterfield, Kershaw, Lancaster	42 min
Mar 25, 6:28 PM EDT	Severe Thunderstorm Warning	CAE	Chesterfield, Kershaw, Lancaster	47 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.