Alert archive / North Carolina / Tornado Warnings in 2021
Tornado Warning 47, NWS Greenville-Spartanburg, SC
NWS Greenville-Spartanburg, SC issued this tornado warning at Aug 17, 2021, 4:59 PM EDT for 5 counties in North Carolina. It was in force for 46 min. 1 report came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Aug 17, 2021, 4:59 PM EDT (20:59 UTC)
- Expired
- Aug 17, 2021, 5:45 PM EDT
- In force
- 46 min
- Issued by
- NWS Greenville-Spartanburg, SC
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.0 in
Counties Avery County, NC, Burke County, NC, McDowell County, NC, Mitchell County, NC, Yancey County, NC
The radar
The Knoxville radar (KMRX), 120 km from the middle of the area, began a volume at 20:59 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 17, 5:34 PM EDT | TSTM WND DMG | 3 Wsw Jonas Ridge, NC | SMALL TREE LIMBS DOWN |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
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
Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 9.0 hours before the alert went out and 195 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
- 522 J/kg
- Mixed-layer CIN
- -5 J/kg
- Mixed-layer LCL
- 593 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 77 m²/s²
- 0-3 km storm-relative helicity
- 99 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 0.9
The text
As transmitted.
050
WFUS52 KGSP 172059
TORGSP
NCC011-023-111-121-199-172145-
/O.NEW.KGSP.TO.W.0047.210817T2059Z-210817T2145Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Greenville-Spartanburg SC
459 PM EDT Tue Aug 17 2021
The National Weather Service in Greenville-Spartanburg has issued a
* Tornado Warning for...
Central McDowell County in western North Carolina...
Mitchell County in western North Carolina...
Southwestern Avery County in western North Carolina...
Northeastern Yancey County in western North Carolina...
West central Burke County in western North Carolina...
* Until 545 PM EDT.
* At 459 PM EDT, a severe thunderstorm capable of producing a tornado
was located 5 miles north of Marion, or 4 miles west of Lake James,
moving northwest at 30 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...
Spruce Pine, B.R. Parkway-Craggy To Little Switzerland and B.R.
Parkway-Little Switzerland To Linville around 520 PM EDT.
Bakersville around 540 PM EDT.
Other locations impacted by this dangerous thunderstorm include Nebo,
Buladean, Bandana, Ingalls and North Cove.
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 3572 8183 3565 8203 3610 8233 3615 8219
3614 8218 3615 8215 3611 8213 3611 8210
3610 8208 3611 8206 3613 8205 3612 8203
3615 8201
TIME...MOT...LOC 2059Z 156DEG 27KT 3576 8197
TORNADO...RADAR INDICATED
MAX HAIL SIZE...0.00 IN
$$
RWH1 follow-up statement
531
WWUS52 KGSP 172114
SVSGSP
Severe Weather Statement
National Weather Service Greenville-Spartanburg SC
514 PM EDT Tue Aug 17 2021
NCC023-172124-
/O.CAN.KGSP.TO.W.0047.000000T0000Z-210817T2145Z/
Burke NC-
514 PM EDT Tue Aug 17 2021
...THE TORNADO WARNING FOR WEST CENTRAL BURKE COUNTY IS CANCELLED...
The tornadic thunderstorm which prompted the warning has moved out
of the warned area. Therefore, the warning has been cancelled.
A Tornado Watch remains in effect until 700 PM EDT for western North
Carolina.
LAT...LON 3615 8201 3597 8193 3596 8194 3591 8191
3589 8191 3577 8211 3610 8233 3615 8219
3614 8218 3615 8215 3611 8213 3610 8208
3611 8206 3613 8205 3612 8203
TIME...MOT...LOC 2114Z 143DEG 29KT 3586 8206
$$
NCC011-111-121-199-172145-
/O.CON.KGSP.TO.W.0047.000000T0000Z-210817T2145Z/
McDowell NC-Mitchell NC-Avery NC-Yancey NC-
514 PM EDT Tue Aug 17 2021
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 545 PM EDT FOR NORTH
CENTRAL MCDOWELL...MITCHELL...SOUTHWESTERN AVERY AND NORTHEASTERN
YANCEY COUNTIES...
At 514 PM EDT, a severe thunderstorm capable of producing a tornado
was located near Spruce Pine, moving northwest 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...
Spruce Pine around 520 PM EDT.
Bakersville around 540 PM EDT.
Other locations impacted by this tornadic thunderstorm include
Buladean, Bandana, Ingalls, Altamont and Ashford.
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 3615 8201 3597 8193 3596 8194 3591 8191
3589 8191 3577 8211 3610 8233 3615 8219
3614 8218 3615 8215 3611 8213 3610 8208
3611 8206 3613 8205 3612 8203
TIME...MOT...LOC 2114Z 143DEG 29KT 3586 8206
TORNADO...RADAR INDICATED
MAX HAIL SIZE...0.00 IN
$$
RWHThe office that day
Everything else NWS Greenville-Spartanburg, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 17, 2:22 AM EDT | River Flood Warning | GSP | Henderson, Transylvania | 4 days |
| Aug 17, 3:01 AM EDT | River Flood Advisory | GSP | Buncombe, Henderson | 79 min |
| Aug 17, 3:27 AM EDT | River Flood Advisory | GSP | Buncombe | 26 hr |
| Aug 17, 3:59 AM EDT | River Flood Warning | GSP | Madison | 40 hr |
| Aug 17, 4:12 AM EDT | River Flood Warning | GSP | Buncombe | 31 hr |
| Aug 17, 4:20 AM EDT | River Flood Warning | GSP | Buncombe, Henderson | 4 days |
| Aug 17, 11:36 AM EDT | Tornado Warning | GSP | Alexander, Iredell | 39 min |
| Aug 17, 12:05 PM EDT | Special Weather Statement | GSP | Iredell | 25 min |
| Aug 17, 12:06 PM EDT | Tornado Warning | GSP | Iredell | 39 min |
| Aug 17, 12:33 PM EDT | Tornado Warning | GSP | Alexander | 12 min |
| Aug 17, 12:42 PM EDT | Tornado Warning | GSP | Iredell | 18 min |
| Aug 17, 1:09 PM EDT | Flash Flood Warning | GSP | Jackson, Macon, Transylvania | 5 hr |
| Aug 17, 1:25 PM EDT | Flash Flood Warning | GSP | Transylvania | 4 hr |
| Aug 17, 1:56 PM EDT | Special Weather Statement | GSP | Transylvania | 34 min |
| Aug 17, 2:01 PM EDT | Special Weather Statement | GSP | Catawba, Lincoln | 29 min |
| Aug 17, 2:02 PM EDT | Special Weather Statement | GSP | Iredell | 28 min |
| Aug 17, 2:02 PM EDT | Special Weather Statement | GSP | Alexander | 28 min |
| Aug 17, 2:31 PM EDT | Tornado Warning | GSP | Burke, Caldwell | 44 min |
| Aug 17, 2:31 PM EDT | Tornado Warning | GSP | Macon | 19 min |
| Aug 17, 3:02 PM EDT | Tornado Warning | GSP | Caldwell | 43 min |
| Aug 17, 3:06 PM EDT | Tornado Warning | GSP | Alexander, Caldwell | 39 min |
| Aug 17, 3:12 PM EDT | Flash Flood Warning | GSP | Haywood | 3 hr |
| Aug 17, 3:41 PM EDT | Flash Flood Warning | GSP | Buncombe | 5 hr |
| Aug 17, 3:48 PM EDT | Tornado Warning | GSP | Alexander, Burke, Caldwell, Catawba | 42 min |
| Aug 17, 4:07 PM EDT | Tornado Warning | GSP | Avery, Burke, McDowell, Mitchell | 53 min |
| Aug 17, 4:08 PM EDT | Flash Flood Warning | GSP | Madison | 9 hr |
| Aug 17, 4:16 PM EDT | Flash Flood Warning | GSP | Buncombe, Henderson | 5 hr |
| Aug 17, 4:17 PM EDT | Tornado Warning | GSP | Avery, Burke, Caldwell | 43 min |
| Aug 17, 4:20 PM EDT | Tornado Warning | GSP | Henderson, Polk, Rutherford | 12 min |
| Aug 17, 4:24 PM EDT | Flash Flood Warning | GSP | Haywood | 4 hr |
| Aug 17, 4:35 PM EDT | Flash Flood Warning | GSP | Buncombe, Henderson, Polk, Rutherford | 8 hr |
| Aug 17, 4:50 PM EDT | Flash Flood Warning | GSP | McDowell | 9 hr |
| Aug 17, 4:58 PM EDT | Flash Flood Warning | GSP | Yancey | 4 hr |
| Aug 17, 5:14 PM EDT | Flash Flood Warning | GSP | Transylvania | 4 hr |
| Aug 17, 5:17 PM EDT | River Flood Warning | GSP | Haywood | 12 hr |
| Aug 17, 5:26 PM EDT | Tornado Warning | GSP | Avery, McDowell, Mitchell, Rutherford, Yancey | 49 min |
| Aug 17, 5:28 PM EDT | Tornado Warning | GSP | Avery, Burke, Caldwell | 47 min |
| Aug 17, 5:32 PM EDT | Flash Flood Warning | GSP | Mitchell | 4 hr |
| Aug 17, 5:48 PM EDT | River Flood Warning | GSP | Buncombe | 26 hr |
| Aug 17, 6:00 PM EDT | Flash Flood Warning | GSP | Avery, Burke, Caldwell | 9 hr |
| Aug 17, 6:16 PM EDT | Flash Flood Warning | GSP | Henderson, Polk, Rutherford | 3 hr |
| Aug 17, 6:42 PM EDT | Tornado Warning | GSP | Polk, Rutherford | 48 min |
| Aug 17, 6:57 PM EDT | Flash Flood Warning | GSP | Burke, McDowell | 6 hr |
| Aug 17, 7:59 PM EDT | Tornado Warning | GSP | Cleveland | 46 min |
Nearby
Tornado Warnings in North 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.