Alert archive / South Carolina / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 96, NWS Greenville-Spartanburg, SC
NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Aug 10, 2021, 7:30 PM EDT for Greenville County, Laurens County, Spartanburg County, South Carolina. It was in force for 45 min. 1 report 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 10, 2021, 7:30 PM EDT (23:30 UTC)
- Expired
- Aug 10, 2021, 8:15 PM EDT
- In force
- 45 min
- Issued by
- NWS Greenville-Spartanburg, SC
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Greenville County, SC, Laurens County, SC, Spartanburg County, SC
The radar
The Greer radar (KGSP), 24 km from the middle of the area, began a volume at 23:30 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 10, 7:51 PM EDT | TSTM WND DMG | 5 E Fountain Inn, SC | 911 CALL CENTER REPORTED SEVEN TREES DOWN BETWEEN FOUNTAIN INN AND WOODRUFF. |
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, 11.5 hours before the alert went out and 255 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.
- Mixed-layer CAPE
- 1302 J/kg
- Mixed-layer CIN
- -57 J/kg
- Mixed-layer LCL
- 948 m above ground
- 0-6 km bulk shear
- 9 kt
- 0-1 km storm-relative helicity
- 14 m²/s²
- 0-3 km storm-relative helicity
- 12 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
933
WUUS52 KGSP 102330
SVRGSP
SCC045-059-083-110015-
/O.NEW.KGSP.SV.W.0096.210810T2330Z-210811T0015Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Greenville-Spartanburg SC
730 PM EDT Tue Aug 10 2021
The National Weather Service in Greenville-Spartanburg has issued a
* Severe Thunderstorm Warning for...
Northwestern Laurens County in Upstate South Carolina...
Southeastern Greenville County in Upstate South Carolina...
Southwestern Spartanburg County in Upstate South Carolina...
* Until 815 PM EDT.
* At 730 PM EDT, a severe thunderstorm was located 13 miles northwest
of Laurens, or near Fountain Inn, moving southeast at 5 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...
Fountain Inn, Woodruff, Gray Court, Enoree, Hickory Tavern and
Simpsonville.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Brief damaging winds will blow down trees and power lines over small
areas. A brief period of large hail is also possible. Seek shelter
inside an interior room.
Large hail and damaging winds and continuous cloud to ground
lightning is occurring with this storm. Move indoors immediately.
Lightning is one of nature's leading killers. Remember, if you can
hear thunder, you are close enough to be struck by lightning.
Torrential rainfall is occurring with this storm, and may lead to
minor flooding. Do not drive your vehicle through flooded roadways.
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 3469 8229 3475 8216 3476 8193 3467 8186
3451 8222
TIME...MOT...LOC 2330Z 336DEG 6KT 3465 8219
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
CACThe office that day
Everything else NWS Greenville-Spartanburg, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 10, 1:52 PM EDT | Special Weather Statement | GSP | Greenwood | 23 min |
| Aug 10, 2:29 PM EDT | Special Weather Statement | GSP | Greenwood | 31 min |
| Aug 10, 2:53 PM EDT | Special Weather Statement | GSP | Greenwood | 37 min |
| Aug 10, 3:27 PM EDT | Special Weather Statement | GSP | Pickens | 33 min |
| Aug 10, 3:58 PM EDT | Special Weather Statement | GSP | Chester | 32 min |
| Aug 10, 4:06 PM EDT | Special Weather Statement | GSP | Oconee | 24 min |
| Aug 10, 4:20 PM EDT | Severe Thunderstorm Warning | GSP | Chester, York | 20 min |
| Aug 10, 6:03 PM EDT | Special Weather Statement | GSP | Greenville | 27 min |
| Aug 10, 6:09 PM EDT | Severe Thunderstorm Warning | GSP | Greenville, Laurens, Spartanburg | 51 min |
| Aug 10, 6:10 PM EDT | Special Weather Statement | GSP | Spartanburg | 35 min |
| Aug 10, 6:30 PM EDT | Special Weather Statement | GSP | Spartanburg | 30 min |
| Aug 10, 6:36 PM EDT | Severe Thunderstorm Warning | GSP | Cherokee, Spartanburg, Union | 39 min |
| Aug 10, 6:41 PM EDT | Special Weather Statement | GSP | Oconee | 34 min |
| Aug 10, 7:03 PM EDT | Severe Thunderstorm Warning | GSP | Spartanburg | 23 min |
| Aug 10, 7:11 PM EDT | Severe Thunderstorm Warning | GSP | Anderson, Oconee | 49 min |
| Aug 10, 7:12 PM EDT | Severe Thunderstorm Warning | GSP | Greenville, Laurens, Spartanburg | 48 min |
| Aug 10, 7:19 PM EDT | Severe Thunderstorm Warning | GSP | Spartanburg, Union | 25 min |
| Aug 10, 7:37 PM EDT | Severe Thunderstorm Warning | GSP | Spartanburg, Union | 41 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.