Alert archive / North Carolina / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 165, NWS Greenville-Spartanburg, SC

August 31, 2021Greenville County, Spartanburg County, South Carolina; Henderson County, Polk County, Rutherford County, North Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Aug 31, 2021, 4:30 PM EDT for Greenville County, Spartanburg County, South Carolina; Henderson County, Polk County, Rutherford County, North Carolina. It was in force for 45 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: Aug 31, 2021, 4:30 PM EDT (20:30 UTC)
Expired: Aug 31, 2021, 5:15 PM EDT
In force: 45 min
Issued by: NWS Greenville-Spartanburg, SC
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Henderson County, NC, Polk County, NC, Rutherford County, NC, Greenville County, SC, Spartanburg County, SC

The radar

The Greer radar (KGSP), 36 km from the middle of the area, began a volume at 20:33 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
Aug 31, 4:32 PM EDT	TSTM WND DMG	5 W Inman, SC	TREE DOWN AT SC HWY 357 AND MOUNTAIN VIEW CIRCLE.
Aug 31, 4:50 PM EDT	TSTM WND DMG	5 W Columbus, NC	TREES DOWN ON I-26 AT MM 62, LANE BLOCKED

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

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 8.5 hours before the alert went out and 231 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: 379 J/kg
Mixed-layer CIN: -96 J/kg
Mixed-layer LCL: 1017 m above ground
0-6 km bulk shear: 24 kt
0-1 km storm-relative helicity: 6 m²/s²
0-3 km storm-relative helicity: 72 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

As transmitted.

498 
WUUS52 KGSP 312030
SVRGSP
NCC089-149-161-SCC045-083-312115-
/O.NEW.KGSP.SV.W.0165.210831T2030Z-210831T2115Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Greenville-Spartanburg SC
430 PM EDT Tue Aug 31 2021

The National Weather Service in Greenville-Spartanburg has issued a

* Severe Thunderstorm Warning for...
  Central Rutherford County in western North Carolina...
  Eastern Henderson County in western North Carolina...
  Polk County in western North Carolina...
  Northeastern Greenville County in Upstate South Carolina...
  Northwestern Spartanburg County in Upstate South Carolina...

* Until 515 PM EDT.

* At 429 PM EDT, severe thunderstorms were located along a line
  extending from 15 miles north of Greenville Downtown to 12 miles
  south of Columbus to 10 miles west of Spartanburg, moving north at
  45 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...Expect damage to trees and power lines.

* Locations impacted include...
  Columbus, Greer, Boiling Springs SC, Duncan, Lyman, Landrum,
  Wellford, Inman, Tryon and Lake Lure.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Please report damaging winds, hail, or flooding to the National
Weather Service 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 3546 8239 3546 8215 3532 8188 3480 8205
      3495 8225 3498 8244
TIME...MOT...LOC 2029Z 191DEG 40KT 3507 8238 3507 8222 3496 8211 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

MOORE

2 follow-up statements

369 
WWUS52 KGSP 312041
SVSGSP

Severe Weather Statement
National Weather Service Greenville-Spartanburg SC
441 PM EDT Tue Aug 31 2021

NCC089-149-161-SCC045-083-312115-
/O.CON.KGSP.SV.W.0165.000000T0000Z-210831T2115Z/
Rutherford NC-Henderson NC-Polk NC-Greenville SC-Spartanburg SC-
441 PM EDT Tue Aug 31 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 515 PM EDT
FOR CENTRAL RUTHERFORD...EASTERN HENDERSON...POLK...NORTHEASTERN
GREENVILLE AND NORTHWESTERN SPARTANBURG COUNTIES...

At 441 PM EDT, severe thunderstorms were located along a line
extending from 11 miles southeast of Hendersonville to 4 miles south
of Columbus to 14 miles northwest of Spartanburg, moving north at 45
mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect damage to trees and power lines.

Locations impacted include...
Columbus, Boiling Springs SC, Landrum, Inman, Tryon, Lake Lure,
Campobello, Saluda, Chimney Rock Village and Tigerville.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Please report damaging winds, hail, or flooding to the National
Weather Service 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 3546 8239 3546 8215 3532 8188 3494 8200
      3507 8221 3505 8242
TIME...MOT...LOC 2041Z 190DEG 40KT 3519 8235 3519 8219 3511 8207 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

MOORE

569 
WWUS52 KGSP 312104
SVSGSP

Severe Weather Statement
National Weather Service Greenville-Spartanburg SC
504 PM EDT Tue Aug 31 2021

NCC089-SCC045-083-312113-
/O.CAN.KGSP.SV.W.0165.000000T0000Z-210831T2115Z/
Henderson NC-Greenville SC-Spartanburg SC-
504 PM EDT Tue Aug 31 2021

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN HENDERSON...
NORTHEASTERN GREENVILLE AND NORTHWESTERN SPARTANBURG COUNTIES IS
CANCELLED...

The storms which prompted the warning have moved out of the warned 
area. Therefore, the warning has been cancelled.

LAT...LON 3532 8188 3519 8193 3527 8218 3528 8234
      3531 8232 3531 8231 3537 8228 3539 8226
      3541 8227 3546 8224 3546 8215
TIME...MOT...LOC 2103Z 191DEG 40KT 3536 8231 3536 8215 3528 8203 

$$

NCC149-161-312115-
/O.CON.KGSP.SV.W.0165.000000T0000Z-210831T2115Z/
Rutherford NC-Polk NC-
504 PM EDT Tue Aug 31 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 515 PM EDT
FOR CENTRAL RUTHERFORD AND POLK COUNTIES...

At 503 PM EDT, severe thunderstorms were located along a line
extending from 9 miles east of Hendersonville to 8 miles north of
Columbus to 6 miles southwest of Rutherfordton, moving north at 45
mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect damage to trees and power lines.

Locations impacted include...
Lake Lure, Mill Spring, Lake Adger, Chimney Rock State Park,
Rutherfordton, Green Hill, Chimney Rock Village and Green Creek.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Please report damaging winds, hail, or flooding to the National
Weather Service 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 3532 8188 3519 8193 3527 8218 3528 8234
      3531 8232 3531 8231 3537 8228 3539 8226
      3541 8227 3546 8224 3546 8215
TIME...MOT...LOC 2103Z 191DEG 40KT 3536 8231 3536 8215 3528 8203 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

MOORE

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 31, 2:01 PM EDT	Special Weather Statement	GSP	Oconee, Pickens	29 min
Aug 31, 2:27 PM EDT	Special Weather Statement	GSP	Anderson, Oconee	33 min
Aug 31, 2:49 PM EDT	Special Weather Statement	GSP	Abbeville, Greenwood	41 min
Aug 31, 3:01 PM EDT	Severe Thunderstorm Warning	GSP	Abbeville, Greenwood, Laurens	44 min
Aug 31, 3:27 PM EDT	Special Weather Statement	GSP	Laurens	48 min
Aug 31, 3:36 PM EDT	Special Weather Statement	GSP	Pickens	24 min
Aug 31, 3:39 PM EDT	Severe Thunderstorm Warning	GSP	Laurens, Spartanburg, Union	51 min
Aug 31, 3:45 PM EDT	Special Weather Statement	GSP	Chester	30 min
Aug 31, 4:11 PM EDT	Special Weather Statement	GSP	Greenville, Spartanburg	34 min
Aug 31, 4:23 PM EDT	Severe Thunderstorm Warning	GSP	Cherokee, Spartanburg, Union, York	37 min
Aug 31, 4:53 PM EDT	Severe Thunderstorm Warning	GSP	Cherokee, York	37 min
Aug 31, 5:16 PM EDT	Special Weather Statement	GSP	Chester, York	29 min
Aug 31, 6:07 PM EDT	Special Weather Statement	GSP	Chester	38 min
Aug 30, 11:15 PM EDT	Special Weather Statement	GSP	Jackson	30 min
Aug 31, 10:16 AM EDT	Wind Advisory	GSP	Avery, Graham, Haywood, Jackson, Madison, Mitchell and 2 more	18 hr
Aug 31, 5:06 PM EDT	Severe Thunderstorm Warning	GSP	Burke, McDowell, Rutherford	39 min
Aug 31, 5:28 PM EDT	Severe Thunderstorm Warning	GSP	Burke, Catawba, Cleveland, Lincoln	17 min
Aug 31, 5:33 PM EDT	Special Weather Statement	GSP	Catawba, Gaston, Lincoln	27 min
Aug 31, 5:41 PM EDT	Severe Thunderstorm Warning	GSP	Alexander, Avery, Burke, Caldwell, Catawba, McDowell and 2 more	49 min
Aug 31, 5:51 PM EDT	Special Weather Statement	GSP	Union	39 min
Aug 31, 6:05 PM EDT	Special Weather Statement	GSP	Alexander, Catawba	25 min
Aug 31, 6:28 PM EDT	Special Weather Statement	GSP	Mecklenburg	32 min
Aug 31, 6:30 PM EDT	Special Weather Statement	GSP	Alexander	30 min
Aug 31, 6:58 PM EDT	Special Weather Statement	GSP	Rowan	32 min
Aug 31, 7:41 PM EDT	Special Weather Statement	GSP	Iredell	34 min

Nearby

Severe Thunderstorm Warnings in North Carolina, 2021 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.