Alert archive / South Carolina / Tornado Warnings in 2021
Tornado Warning 60, NWS Greenville-Spartanburg, SC
NWS Greenville-Spartanburg, SC issued this tornado warning at Aug 17, 2021, 6:51 PM EDT for Laurens County, Spartanburg 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 17, 2021, 6:51 PM EDT (22:51 UTC)
- Expired
- Aug 17, 2021, 7:30 PM EDT
- In force
- 39 min
- Issued by
- NWS Greenville-Spartanburg, SC
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.75 in
Counties Laurens County, SC, Spartanburg County, SC, Union County, SC
The radar
The Greer radar (KGSP), 66 km from the middle of the area, began a volume at 22:54 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Aug 17, 6:28 PM EDT | Tornado Watch | SPC | 10 hr |
The nearest sounding before it
Charleston AFB, SC (KCHS), launched 12:00Z, 10.9 hours before the alert went out and 239 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
- 1066 J/kg
- Mixed-layer CIN
- -24 J/kg
- Mixed-layer LCL
- 639 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 84 m²/s²
- 0-3 km storm-relative helicity
- 92 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.5
The text
As transmitted.
336
WFUS52 KGSP 172251
TORGSP
SCC059-083-087-172330-
/O.NEW.KGSP.TO.W.0060.210817T2251Z-210817T2330Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Greenville-Spartanburg SC
651 PM EDT Tue Aug 17 2021
The National Weather Service in Greenville-Spartanburg has issued a
* Tornado Warning for...
Central Laurens County in Upstate South Carolina...
South central Spartanburg County in Upstate South Carolina...
Southwestern Union County in Upstate South Carolina...
* Until 730 PM EDT.
* At 651 PM EDT, a severe thunderstorm capable of producing a tornado
was located 13 miles south of Laurens, or near Cross Hill, moving
north at 35 mph.
HAZARD...Tornado.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed.
Damage to roofs, windows, and vehicles will occur. Tree
damage is likely.
* This dangerous storm will be near...
Clinton and Joanna around 710 PM EDT.
Other locations impacted by this dangerous thunderstorm include Cross
Keys, Sedalia, Enoree, Mountville and Cross Anchor.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
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 3425 8202 3427 8205 3429 8207 3468 8198
3461 8165 3436 8179 3435 8181 3435 8183
3432 8186 3430 8190 3424 8191 3423 8193
TIME...MOT...LOC 2251Z 198DEG 31KT 3432 8195
TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
$$
CAC1 follow-up statement
134
WWUS52 KGSP 172316
SVSGSP
Severe Weather Statement
National Weather Service Greenville-Spartanburg SC
716 PM EDT Tue Aug 17 2021
SCC059-083-087-172330-
/O.CON.KGSP.TO.W.0060.000000T0000Z-210817T2330Z/
Laurens SC-Spartanburg SC-Union SC-
716 PM EDT Tue Aug 17 2021
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 730 PM EDT FOR EASTERN
LAURENS...SOUTH CENTRAL SPARTANBURG AND SOUTHWESTERN UNION
COUNTIES...
At 715 PM EDT, a severe thunderstorm capable of producing a tornado
was located 8 miles east of Laurens, or near Clinton, moving north at
35 mph.
HAZARD...Tornado.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
This tornadic thunderstorm will remain over mainly rural areas of
eastern Laurens, south central Spartanburg and southwestern Union
Counties, including the following locations... Cross Keys, Sedalia,
Enoree, Mountville and Cross Anchor.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
&&
LAT...LON 3434 8202 3468 8198 3461 8165 3436 8179
3435 8181 3435 8183 3432 8186 3431 8198
TIME...MOT...LOC 2315Z 198DEG 31KT 3452 8187
TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
$$
CACThe office that day
Everything else NWS Greenville-Spartanburg, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 17, 11:47 AM EDT | Tornado Warning | GSP | Oconee | 13 min |
| Aug 17, 12:30 PM EDT | Flash Flood Warning | GSP | Oconee | 5 hr |
| Aug 17, 12:30 PM EDT | Tornado Warning | GSP | Oconee, Pickens | 23 min |
| Aug 17, 12:59 PM EDT | Tornado Warning | GSP | Anderson, Pickens | 23 min |
| Aug 17, 1:20 PM EDT | Tornado Warning | GSP | Pickens | 25 min |
| Aug 17, 2:03 PM EDT | Flash Flood Warning | GSP | Greenville, Pickens | 5 hr |
| Aug 17, 2:14 PM EDT | Tornado Warning | GSP | Greenwood, Laurens | 33 min |
| Aug 17, 2:52 PM EDT | Tornado Warning | GSP | Greenville | 26 min |
| Aug 17, 3:01 PM EDT | Tornado Warning | GSP | Greenville | 18 min |
| Aug 17, 3:25 PM EDT | Special Weather Statement | GSP | Spartanburg | 35 min |
| Aug 17, 3:26 PM EDT | Special Weather Statement | GSP | Oconee | 34 min |
| Aug 17, 4:34 PM EDT | Special Weather Statement | GSP | Abbeville, Anderson, Pickens | 26 min |
| Aug 17, 5:08 PM EDT | Tornado Warning | GSP | Anderson, Greenville, Pickens | 52 min |
| Aug 17, 5:10 PM EDT | Tornado Warning | GSP | Abbeville, Greenville, Greenwood, Laurens | 50 min |
| Aug 17, 5:11 PM EDT | Tornado Warning | GSP | Abbeville, Greenwood, Laurens | 49 min |
| Aug 17, 5:33 PM EDT | Tornado Warning | GSP | Anderson, Greenville, Spartanburg | 42 min |
| Aug 17, 5:37 PM EDT | Tornado Warning | GSP | Chester, York | 38 min |
| Aug 17, 5:57 PM EDT | Tornado Warning | GSP | Greenville, Laurens, Spartanburg | 48 min |
| Aug 17, 5:58 PM EDT | Tornado Warning | GSP | Greenwood, Laurens | 47 min |
| Aug 17, 6:15 PM EDT | Tornado Warning | GSP | Laurens, Spartanburg, Union | 45 min |
| Aug 17, 6:16 PM EDT | Flash Flood Warning | GSP | Greenville, Pickens, Spartanburg | 3 hr |
| Aug 17, 6:42 PM EDT | Tornado Warning | GSP | Spartanburg | 48 min |
| Aug 17, 6:46 PM EDT | Tornado Warning | GSP | Cherokee, Spartanburg | 44 min |
| Aug 17, 7:59 PM EDT | Tornado Warning | GSP | Cherokee, Spartanburg | 46 min |
Nearby
Tornado Warnings in South Carolina, 2021Every tornado warning in 2021Tornadoes 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.