Alert archive / South Carolina / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 153, NWS Greenville-Spartanburg, SC
NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Aug 19, 2021, 5:36 PM EDT for Laurens County, Union County, South Carolina. It was in force for 39 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
- Aug 19, 2021, 5:36 PM EDT (21:36 UTC)
- Expired
- Aug 19, 2021, 6:15 PM EDT
- In force
- 39 min
- Issued by
- NWS Greenville-Spartanburg, SC
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Laurens County, SC, Union County, SC
The radar
The Greer radar (KGSP), 70 km from the middle of the area, began a volume at 21:35 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, 9.6 hours before the alert went out and 225 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
- 50 J/kg
- Mixed-layer CIN
- -78 J/kg
- Mixed-layer LCL
- 1247 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 5 m²/s²
- 0-3 km storm-relative helicity
- 16 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.1
The text
As transmitted.
622
WUUS52 KGSP 192136
SVRGSP
SCC059-087-192215-
/O.NEW.KGSP.SV.W.0153.210819T2136Z-210819T2215Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Greenville-Spartanburg SC
536 PM EDT Thu Aug 19 2021
The National Weather Service in Greenville-Spartanburg has issued a
* Severe Thunderstorm Warning for...
East central Laurens County in Upstate South Carolina...
Southern Union County in Upstate South Carolina...
* Until 615 PM EDT.
* At 535 PM EDT, a severe thunderstorm was located 11 miles south of
Union, or near Rose Hill State Park, moving east at 10 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to trees and power lines.
* Locations impacted include...
Carlisle, Rose Hill State Park, Sedalia, Tuckertown, Santuc, Cross
Keys and Monarch Mill.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
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 3462 8178 3474 8149 3472 8148 3472 8145
3468 8145 3464 8142 3450 8142 3449 8144
3449 8148 3446 8152 3446 8155 3449 8157
3453 8162 3453 8164 3452 8165 3445 8171
TIME...MOT...LOC 2135Z 251DEG 10KT 3456 8167
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
RWH2 follow-up statements
304
WWUS52 KGSP 192158
SVSGSP
Severe Weather Statement
National Weather Service Greenville-Spartanburg SC
558 PM EDT Thu Aug 19 2021
SCC059-087-192215-
/O.CON.KGSP.SV.W.0153.000000T0000Z-210819T2215Z/
Laurens SC-Union SC-
558 PM EDT Thu Aug 19 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 615 PM EDT
FOR EAST CENTRAL LAURENS AND SOUTHERN UNION COUNTIES...
At 558 PM EDT, a severe thunderstorm was located 11 miles south of
Union, or near Rose Hill State Park, moving east at 10 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to trees and power lines.
Locations impacted include...
Carlisle, Rose Hill State Park, Sedalia, Tuckertown, Santuc, Cross
Keys and Monarch Mill.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Brief damaging winds will blow down trees and power lines over small
areas. A brief period of large hail is also possible. Seek shelter
inside an interior room.
Continuous cloud to ground lightning is occurring with this storm.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
Please report damaging winds, hail, or flooding to the National
Weather Service by calling toll free, 1, 800, 2 6 7, 8 1 0 1, or by
posting on our Facebook page, or Tweet it using hashtag nwsgsp. Your
message should describe the event and the specific location where it
occurred.
&&
LAT...LON 3462 8178 3474 8149 3472 8148 3472 8145
3468 8145 3464 8142 3450 8142 3449 8144
3449 8148 3446 8152 3446 8155 3449 8157
3453 8162 3453 8164 3452 8165 3445 8171
TIME...MOT...LOC 2158Z 278DEG 10KT 3457 8168
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
RWH277
WWUS52 KGSP 192205
SVSGSP
Severe Weather Statement
National Weather Service Greenville-Spartanburg SC
605 PM EDT Thu Aug 19 2021
SCC059-087-192215-
/O.EXP.KGSP.SV.W.0153.000000T0000Z-210819T2215Z/
Laurens SC-Union SC-
605 PM EDT Thu Aug 19 2021
...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL LAURENS AND
SOUTHERN UNION COUNTIES WILL EXPIRE AT 615 PM EDT...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire. However gusty
winds and heavy rain are still possible with this thunderstorm.
LAT...LON 3462 8178 3474 8149 3472 8148 3472 8145
3468 8145 3464 8142 3450 8142 3449 8144
3449 8148 3446 8152 3446 8155 3449 8157
3453 8162 3453 8164 3452 8165 3445 8171
TIME...MOT...LOC 2205Z 251DEG 10KT 3457 8167
$$
RWHThe office that day
Everything else NWS Greenville-Spartanburg, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 19, 1:42 PM EDT | Special Weather Statement | GSP | Oconee, Pickens | 33 min |
| Aug 19, 5:07 PM EDT | Special Weather Statement | GSP | Cherokee | 23 min |
| Aug 19, 5:11 PM EDT | Severe Thunderstorm Warning | GSP | Cherokee, York | 49 min |
| Aug 19, 5:25 PM EDT | Special Weather Statement | GSP | Union | 35 min |
| Aug 19, 5:26 PM EDT | Special Weather Statement | GSP | Abbeville | 34 min |
| Aug 19, 5:50 PM EDT | Special Weather Statement | GSP | York | 25 min |
| Aug 19, 6:00 PM EDT | Special Weather Statement | GSP | York | 30 min |
| Aug 19, 6:12 PM EDT | Special Weather Statement | GSP | Union | 33 min |
| Aug 19, 6:29 PM EDT | Special Weather Statement | GSP | Chester, York | 31 min |
| Aug 19, 6:55 PM EDT | Special Weather Statement | GSP | Chester | 35 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.