Alert archive / South Carolina / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 8, NWS Greenville-Spartanburg, SC

March 26, 2021Chester County, South Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Mar 26, 2021, 4:44 AM EDT for Chester County, South Carolina. It was in force for 31 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 26, 2021, 4:44 AM EDT (08:44 UTC)
Expired: Mar 26, 2021, 5:15 AM EDT
In force: 31 min
Issued by: NWS Greenville-Spartanburg, SC
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Chester County, SC

The radar

The Columbia radar (KCAE), 81 km from the middle of the area, began a volume at 08:43 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 00:00Z, 8.7 hours before the alert went out and 188 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: 28 J/kg
Mixed-layer CIN: -9 J/kg
Mixed-layer LCL: 544 m above ground
0-6 km bulk shear: 50 kt
0-1 km storm-relative helicity: 316 m²/s²
0-3 km storm-relative helicity: 501 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

092 
WUUS52 KGSP 260844
SVRGSP
SCC023-260915-
/O.NEW.KGSP.SV.W.0008.210326T0844Z-210326T0915Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Greenville-Spartanburg SC
444 AM EDT Fri Mar 26 2021

The National Weather Service in Greenville-Spartanburg has issued a

* Severe Thunderstorm Warning for...
  Chester County in Upstate South Carolina...

* Until 515 AM EDT.

* At 443 AM EDT, a severe thunderstorm was located 4 miles south of
  Chester, or near Chester State Park, moving east at 65 mph.

  HAZARD...60 mph wind gusts and quarter size hail.

  SOURCE...Radar indicated.

  IMPACT...Minor hail damage to vehicles is expected. Expect wind 
           damage to trees and power lines.

* Locations impacted include...
  Chester, Great Falls, Fort Lawn, Richburg, Chester State Park,
  Leeds, Cornwell, Fishing Creek Reservoir and Blackstock.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Scattered trees and power lines will be blown down in the warned
area. Seek shelter inside an interior room.

This storm is producing frequent and intense lightning. Turn off
electrical appliances. Do not use corded telephones. Do not take a
bath or shower.

Please report damaging winds, hail, or flooding to the National
Weather Service Greenville-Spartanburg by calling toll free, 1, 800,
2 6 7, 8 1 0 1, or by posting on our Facebook page, or Tweet it using
hashtag nwsgsp. Your message should describe the event and the
specific location where it occurred.

&&

LAT...LON 3467 8089 3463 8090 3455 8087 3457 8140
      3461 8142 3464 8142 3470 8135 3482 8091
      3479 8088 3475 8088 3470 8086
TIME...MOT...LOC 0843Z 254DEG 55KT 3464 8123 

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

MOORE

1 follow-up statement

753 
WWUS52 KGSP 260857
SVSGSP

Severe Weather Statement
National Weather Service Greenville-Spartanburg SC
457 AM EDT Fri Mar 26 2021

SCC023-260915-
/O.CON.KGSP.SV.W.0008.000000T0000Z-210326T0915Z/
Chester SC-
457 AM EDT Fri Mar 26 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 515 AM EDT
FOR NORTHEASTERN CHESTER COUNTY...

At 457 AM EDT, a severe thunderstorm was located 11 miles west of
Lancaster, or near Richburg, moving east at 65 mph.

HAZARD...60 mph wind gusts and quarter size hail.

SOURCE...Radar indicated.

IMPACT...Minor hail damage to vehicles is expected. Expect wind 
         damage to trees and power lines.

Locations impacted include...
Fort Lawn, Richburg, Fishing Creek Reservoir and Great Falls. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Scattered trees and power lines will be blown down in the warned
area. Seek shelter inside an interior room.

This storm is producing frequent and intense lightning. Turn off
electrical appliances. Do not use corded telephones. Do not take a
bath or shower.

Please report damaging winds, hail, or flooding to the National
Weather Service Greenville-Spartanburg by calling toll free, 1, 800,
2 6 7, 8 1 0 1, or by posting on our Facebook page, or Tweet it using
hashtag nwsgsp. Your message should describe the event and the
specific location where it occurred.

&&

LAT...LON 3467 8089 3463 8090 3459 8089 3462 8106
      3467 8111 3474 8109 3482 8091 3479 8088
      3475 8088 3470 8086
TIME...MOT...LOC 0857Z 254DEG 55KT 3470 8098 

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

MOORE

The office that day

Everything else NWS Greenville-Spartanburg, SC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Mar 25, 11:06 PM EDT	Special Weather Statement	GSP	Spartanburg	24 min
Mar 25, 11:42 PM EDT	Special Weather Statement	GSP	Cherokee	48 min
Mar 25, 11:49 PM EDT	Areal Flood Advisory	GSP	Greenville, Oconee, Pickens	12 hr
Mar 25, 11:52 PM EDT	Special Weather Statement	GSP	Spartanburg	38 min
Mar 26, 12:20 AM EDT	Special Weather Statement	GSP	Chester, Union, York	40 min
Mar 26, 1:29 AM EDT	Severe Thunderstorm Warning	GSP	Oconee	31 min
Mar 26, 1:55 AM EDT	Severe Thunderstorm Warning	GSP	Oconee, Pickens	35 min
Mar 26, 2:28 AM EDT	Special Weather Statement	GSP	Greenville	32 min
Mar 26, 2:50 AM EDT	Areal Flood Advisory	GSP	Spartanburg	14 hr
Mar 26, 3:15 AM EDT	Special Weather Statement	GSP	Anderson	30 min
Mar 26, 3:21 AM EDT	River Flood Warning	GSP	Cherokee, York	30 hr
Mar 26, 3:23 AM EDT	Severe Thunderstorm Warning	GSP	Abbeville, Anderson	24 min
Mar 26, 3:49 AM EDT	Special Weather Statement	GSP	Laurens	26 min
Mar 26, 4:01 AM EDT	Special Weather Statement	GSP	Abbeville	29 min
Mar 26, 4:14 AM EDT	Special Weather Statement	GSP	Laurens, Union	31 min
Mar 26, 4:25 AM EDT	Special Weather Statement	GSP	Chester	35 min
Mar 26, 4:29 AM EDT	Special Weather Statement	GSP	Abbeville, Greenwood	31 min
Mar 26, 4:55 AM EDT	Special Weather Statement	GSP	Laurens	35 min
Mar 26, 5:20 AM EDT	Special Weather Statement	GSP	Chester	40 min
Mar 26, 6:17 AM EDT	River Flood Advisory	GSP	Greenville, Pickens	7 hr
Mar 26, 6:58 AM EDT	Special Weather Statement	GSP	Greenwood	17 min
Mar 26, 6:59 AM EDT	Special Weather Statement	GSP	Laurens	31 min
Mar 26, 9:20 AM EDT	Special Weather Statement	GSP	Abbeville	25 min
Mar 26, 9:41 AM EDT	Severe Thunderstorm Warning	GSP	Abbeville, Greenwood, Laurens	49 min
Mar 26, 11:28 AM EDT	Areal Flood Advisory	GSP	Pickens	14 hr
Mar 26, 1:32 PM EDT	River Flood Warning	GSP	Greenville, Pickens	31 hr
Mar 26, 4:37 PM EDT	Areal Flood Advisory	GSP	Spartanburg	10 hr

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.