Alert archive / South Carolina / Tornado Warnings in 2021
Tornado Warning 11, NWS Columbia, SC
NWS Columbia, SC issued this tornado warning at Aug 17, 2021, 1:44 PM EDT for Edgefield County, McCormick County, Saluda County, South Carolina. It was in force for 17 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, 1:44 PM EDT (17:44 UTC)
- Expired
- Aug 17, 2021, 2:01 PM EDT
- In force
- 17 min
- Issued by
- NWS Columbia, SC
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.0 in
Counties Edgefield County, SC, McCormick County, SC, Saluda County, SC
The radar
The Columbia radar (KCAE), 85 km from the middle of the area, began a volume at 17:45 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, 5.7 hours before the alert went out and 224 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.
632
WFUS52 KCAE 171744
TORCAE
SCC037-065-081-171815-
/O.NEW.KCAE.TO.W.0011.210817T1744Z-210817T1815Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Columbia SC
144 PM EDT Tue Aug 17 2021
The National Weather Service in Columbia has issued a
* Tornado Warning for...
Northwestern Edgefield County in central South Carolina...
West central Saluda County in central South Carolina...
Northeastern McCormick County in central South Carolina...
* Until 215 PM EDT.
* At 143 PM EDT, a severe thunderstorm capable of producing a tornado
was located 8 miles northwest of Edgefield, or 21 miles south of
Greenwood, 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 tornadic thunderstorm will remain over mainly rural areas of
northwestern Edgefield, west central Saluda and northeastern
McCormick Counties, including the following locations... Pleasant
Lane and Northside Fire Station Main.
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 3399 8210 3398 8208 3398 8205 3395 8204
3396 8202 3399 8199 3404 8195 3406 8193
3386 8195 3386 8212 3399 8214
TIME...MOT...LOC 1743Z 179DEG 22KT 3389 8202
TORNADO...RADAR INDICATED
MAX HAIL SIZE...0.00 IN
$$1 follow-up statement
999
WWUS52 KCAE 171801
SVSCAE
Severe Weather Statement
National Weather Service Columbia SC
201 PM EDT Tue Aug 17 2021
SCC037-065-081-171811-
/O.CAN.KCAE.TO.W.0011.000000T0000Z-210817T1815Z/
Edgefield SC-Saluda SC-McCormick SC-
201 PM EDT Tue Aug 17 2021
...THE TORNADO WARNING FOR NORTHWESTERN EDGEFIELD...WEST CENTRAL
SALUDA AND NORTHEASTERN MCCORMICK COUNTIES IS CANCELLED...
The storm which prompted the warning has moved out of the area.
Therefore, the warning has been cancelled.
A Tornado Watch remains in effect until 700 PM EDT for central South
Carolina.
LAT...LON 3399 8210 3398 8208 3398 8205 3395 8204
3396 8202 3399 8199 3404 8195 3406 8193
3386 8195 3386 8212 3399 8214
TIME...MOT...LOC 1800Z 179DEG 22KT 3401 8202
$$
LCVThe office that day
Everything else NWS Columbia, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 17, 12:31 PM EDT | Areal Flood Advisory | CAE | Aiken, Edgefield, McCormick, Saluda | 59 min |
| Aug 17, 12:59 PM EDT | Tornado Warning | CAE | Edgefield | 46 min |
| Aug 17, 1:34 PM EDT | Areal Flood Advisory | CAE | Aiken, Edgefield, Saluda | 56 min |
| Aug 17, 1:55 PM EDT | Tornado Warning | CAE | Aiken, Edgefield, Lexington, Saluda | 50 min |
| Aug 17, 2:08 PM EDT | Tornado Warning | CAE | Aiken | 37 min |
| Aug 17, 2:31 PM EDT | Tornado Warning | CAE | Barnwell | 44 min |
| Aug 17, 3:12 PM EDT | Tornado Warning | CAE | Lexington, Saluda | 48 min |
| Aug 17, 3:17 PM EDT | Areal Flood Advisory | CAE | Aiken, Edgefield, Lexington, Newberry, Saluda | 58 min |
| Aug 17, 3:48 PM EDT | Tornado Warning | CAE | Fairfield, Lexington, Newberry, Richland | 42 min |
| Aug 17, 4:25 PM EDT | Severe Thunderstorm Warning | CAE | Fairfield, Newberry | 50 min |
| Aug 17, 4:31 PM EDT | Areal Flood Advisory | CAE | Fairfield, Lexington, Newberry, Richland, Saluda | 59 min |
| Aug 17, 4:48 PM EDT | Severe Thunderstorm Warning | CAE | Bamberg, Orangeburg | 42 min |
| Aug 17, 4:56 PM EDT | Tornado Warning | CAE | Orangeburg | 34 min |
| Aug 17, 5:29 PM EDT | Areal Flood Advisory | CAE | Calhoun, Kershaw, Lexington, Richland | 3 hr |
| Aug 17, 5:29 PM EDT | Tornado Warning | CAE | Calhoun, Orangeburg | 46 min |
| Aug 17, 7:43 PM EDT | Special Weather Statement | CAE | Aiken | 32 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.