Alert archive / South Carolina / Tornado Warnings in 2021
Tornado Warning 34, NWS Greenville-Spartanburg, SC
NWS Greenville-Spartanburg, SC issued this tornado warning at Aug 17, 2021, 12:59 PM EDT for Anderson County, Pickens County, South Carolina. It was in force for 23 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, 12:59 PM EDT (16:59 UTC)
- Expired
- Aug 17, 2021, 1:22 PM EDT
- In force
- 23 min
- Issued by
- NWS Greenville-Spartanburg, SC
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.0 in
Counties Anderson County, SC, Pickens County, SC
The radar
The Greer radar (KGSP), 55 km from the middle of the area, began a volume at 17:00 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
Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 5.0 hours before the alert went out and 218 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
- 259 J/kg
- Mixed-layer CIN
- 0 J/kg
- Mixed-layer LCL
- 461 m above ground
- 0-6 km bulk shear
- 11 kt
- 0-1 km storm-relative helicity
- 113 m²/s²
- 0-3 km storm-relative helicity
- 197 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 0.8
The text
As transmitted.
615
WFUS52 KGSP 171659
TORGSP
SCC007-077-171745-
/O.NEW.KGSP.TO.W.0034.210817T1659Z-210817T1745Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Greenville-Spartanburg SC
1259 PM EDT Tue Aug 17 2021
The National Weather Service in Greenville-Spartanburg has issued a
* Tornado Warning for...
North central Anderson County in Upstate South Carolina...
Southwestern Pickens County in Upstate South Carolina...
* Until 145 PM EDT.
* At 1259 PM EDT, a severe thunderstorm capable of producing a
tornado was located 4 miles southeast of Clemson, or near
Pendleton, moving north at 25 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...
Pendleton around 100 PM EDT.
Clemson and Central around 110 PM EDT.
Norris and Liberty around 120 PM EDT.
Six Mile around 130 PM EDT.
Lake Keowee around 140 PM EDT.
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.
Heavy rainfall may hide this tornado. Do not wait to see or hear the
tornado. TAKE COVER NOW!
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 3459 8278 3483 8290 3485 8290 3491 8273
3461 8267
TIME...MOT...LOC 1659Z 164DEG 24KT 3464 8274
TORNADO...RADAR INDICATED
MAX HAIL SIZE...0.00 IN
$$
TDP2 follow-up statements
014
WWUS52 KGSP 171708
SVSGSP
Severe Weather Statement
National Weather Service Greenville-Spartanburg SC
108 PM EDT Tue Aug 17 2021
SCC007-077-171745-
/O.CON.KGSP.TO.W.0034.000000T0000Z-210817T1745Z/
Anderson SC-Pickens SC-
108 PM EDT Tue Aug 17 2021
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 145 PM EDT FOR
NORTHWESTERN ANDERSON AND SOUTHWESTERN PICKENS COUNTIES...
At 107 PM EDT, a confirmed tornado was located approximately 5 miles
east of Clemson, or near Pendleton, moving north at 20 mph.
HAZARD...Damaging tornado.
SOURCE...Radar confirmed tornado.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
This tornado will be near...
Clemson and Central around 110 PM EDT.
Norris and Liberty around 130 PM EDT.
Six Mile around 140 PM EDT.
Lake Keowee around 200 PM EDT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
To repeat, a tornado is on the ground. TAKE COVER NOW! Move to a
basement or an interior room on the lowest floor of a sturdy
building. Avoid windows. If you are outdoors, in a mobile home, or in
a vehicle, move to the closest substantial shelter and protect
yourself from flying debris.
Heavy rainfall may hide this tornado. Do not wait to see or hear the
tornado. TAKE COVER NOW!
&&
LAT...LON 3462 8279 3483 8290 3485 8290 3491 8273
3465 8268
TIME...MOT...LOC 1707Z 165DEG 19KT 3468 8275
TORNADO...OBSERVED
MAX HAIL SIZE...0.00 IN
$$
TDP980
WWUS52 KGSP 171722
SVSGSP
Severe Weather Statement
National Weather Service Greenville-Spartanburg SC
122 PM EDT Tue Aug 17 2021
SCC007-077-171731-
/O.CAN.KGSP.TO.W.0034.000000T0000Z-210817T1745Z/
Anderson SC-Pickens SC-
122 PM EDT Tue Aug 17 2021
...THE TORNADO WARNING FOR NORTHWESTERN ANDERSON AND SOUTHWESTERN
PICKENS COUNTIES IS CANCELLED...
The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore, the warning has been cancelled.
A Tornado Watch remains in effect until 700 PM EDT for Upstate South
Carolina.
To report severe weather to the National Weather Service
Greenville-Spartanburg, call toll free, 1, 800, 2 6 7, 8 1 0 1, or
post on our Facebook page, or Tweet it using hashtag nwsgsp. Your
message should describe the event and the specific location where it
occurred.
Remember, a Tornado Warning still remains in effect for central
Pickens County until 145 PM.
LAT...LON 3462 8279 3483 8290 3485 8290 3491 8273
3465 8268
TIME...MOT...LOC 1720Z 164DEG 24KT 3477 8278
$$
TDPThe 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, 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, 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.