Alert archive / South Carolina / Tornado Warnings in 2021
Tornado Warning 57, NWS Greenville-Spartanburg, SC
NWS Greenville-Spartanburg, SC issued this tornado warning at Aug 17, 2021, 6:15 PM EDT for Laurens County, Spartanburg County, Union County, South Carolina. It was in force for 45 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, 6:15 PM EDT (22:15 UTC)
- Expired
- Aug 17, 2021, 7:00 PM EDT
- In force
- 45 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), 61 km from the middle of the area, began a volume at 22:16 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, 10:42 AM EDT | Tornado Watch | SPC | 8 hr |
The nearest sounding before it
Charleston AFB, SC (KCHS), launched 12:00Z, 10.3 hours before the alert went out and 245 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.
500
WFUS52 KGSP 172215
TORGSP
SCC059-083-087-172300-
/O.NEW.KGSP.TO.W.0057.210817T2215Z-210817T2300Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Greenville-Spartanburg SC
615 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...
Southeastern Spartanburg County in Upstate South Carolina...
West central Union County in Upstate South Carolina...
* Until 700 PM EDT.
* At 615 PM EDT, a severe thunderstorm capable of producing a tornado
was located 10 miles south of Laurens, or near Cross Hill, moving
north at 40 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...
Laurens around 630 PM EDT.
Clinton around 640 PM EDT.
Other locations impacted by this dangerous thunderstorm include Cross
Keys, Enoree, Mountville, Cross Anchor and Ora.
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 3428 8207 3430 8208 3430 8210 3480 8201
3471 8168 3431 8187 3430 8190 3426 8190
3425 8191
TIME...MOT...LOC 2215Z 195DEG 33KT 3435 8198
TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
$$
CAC1 follow-up statement
547
WWUS52 KGSP 172230
SVSGSP
Severe Weather Statement
National Weather Service Greenville-Spartanburg SC
630 PM EDT Tue Aug 17 2021
SCC059-083-087-172300-
/O.CON.KGSP.TO.W.0057.000000T0000Z-210817T2300Z/
Laurens SC-Spartanburg SC-Union SC-
630 PM EDT Tue Aug 17 2021
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 700 PM EDT FOR CENTRAL
LAURENS...SOUTHEASTERN SPARTANBURG AND WEST CENTRAL UNION COUNTIES...
At 630 PM EDT, a severe thunderstorm capable of producing a tornado
was located 5 miles east of Laurens, or 4 miles west of Clinton,
moving north at 40 mph.
HAZARD...Tornado.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
This tornadic thunderstorm will remain over mainly rural areas of
central Laurens, southeastern Spartanburg and west central Union
Counties, including the following locations... Cross Keys, Enoree,
Cross Anchor and Ora.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
&&
LAT...LON 3442 8207 3480 8201 3471 8168 3438 8184
TIME...MOT...LOC 2230Z 195DEG 33KT 3449 8194
TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
$$
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, 6:16 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, 6:51 PM EDT | Tornado Warning | GSP | Laurens, Spartanburg, Union | 39 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.