Alert archive / North Carolina / Tornado Warnings in 2021
Tornado Warning 13, NWS Blacksburg, VA
NWS Blacksburg, VA issued this tornado warning at Aug 17, 2021, 2:43 PM EDT for Rockingham County, Stokes County, North Carolina; Henry County, Patrick County, Virginia. It was in force for 32 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, 2:43 PM EDT (18:43 UTC)
- Expired
- Aug 17, 2021, 3:15 PM EDT
- In force
- 32 min
- Issued by
- NWS Blacksburg, VA
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.0 in
Counties Rockingham County, NC, Stokes County, NC, Henry County, VA, Patrick County, VA
The radar
The Roanoke radar (KFCX), 38 km from the middle of the area, began a volume at 18:44 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, 2:59 PM EDT | TSTM WND DMG | 2 Ne Critz, VA | A TREE WAS BLOWN DOWN BY THUNDERSTORM WINDS NEAR THE INTERSECTION OF TRENTS ORCHARD ROAD AND ABRAM PENN HIGHWAY. |
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, 1:06 PM EDT | Tornado Watch | SPC | 5 hr |
The nearest sounding before it
Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 6.7 hours before the alert went out and 73 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.
976
WFUS51 KRNK 171843
TORRNK
NCC157-169-VAC089-141-171915-
/O.NEW.KRNK.TO.W.0013.210817T1843Z-210817T1915Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service BLACKSBURG VA
243 PM EDT Tue Aug 17 2021
The National Weather Service in BLACKSBURG has issued a
* Tornado Warning for...
Northeastern Stokes County in north central North Carolina...
Northwestern Rockingham County in north central North Carolina...
Southwestern Henry County in south central Virginia...
Southeastern Patrick County in southwestern Virginia...
* Until 315 PM EDT.
* At 243 PM EDT, a shower capable of producing a tornado was located
near Ayersville, or near Sandy Ridge, 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.
* Locations impacted include...
Spencer...
Sandy Ridge...
Sanville...
Penns Store...
Fairy Stone State Park...
Critz...
and Buffalo Ridge.
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.
Locally heavy rain will quickly reduce visibility and result in
ponding of water on roadways, standing water in low lying areas, and
minor flooding of creeks, streams, and areas of poor drainage.
Drivers are urged to slow down and use extra caution to avoid
hydroplaning.
When it is safe to do so, please send your reports of hail of any
size, as well as reports of any wind damage, including downed trees
or large limbs, to the National Weather Service by calling toll free
at 1...8 6 6...2 1 5...4 3 2 4. Reports and pictures can also be
shared on the National Weather Service Blacksburg Facebook page and
on Twitter.
&&
LAT...LON 3674 8034 3683 8007 3680 8004 3679 8004
3679 8003 3678 8002 3648 7998 3646 8007
TIME...MOT...LOC 1843Z 158DEG 23KT 3653 8006
TORNADO...RADAR INDICATED
MAX HAIL SIZE...0.00 IN
$$
RR1 follow-up statement
856
WWUS51 KRNK 171902
SVSRNK
Severe Weather Statement
National Weather Service BLACKSBURG VA
302 PM EDT Tue Aug 17 2021
NCC157-169-VAC089-171911-
/O.CAN.KRNK.TO.W.0013.000000T0000Z-210817T1915Z/
Stokes NC-Rockingham NC-Henry VA-
302 PM EDT Tue Aug 17 2021
...THE TORNADO WARNING FOR
NORTHEASTERN STOKES...NORTHWESTERN ROCKINGHAM AND SOUTHWESTERN HENRY
COUNTIES IS CANCELLED...
The tornadic shower which prompted the warning has moved out of the
warned area. Therefore, the warning has been cancelled.
A Tornado Watch remains in effect until 700 PM EDT for north central
and northwestern North Carolina...and south central, southwestern and
west central Virginia.
LAT...LON 3670 8030 3674 8034 3682 8011 3676 8009
3672 8009 3670 8008 3668 8008 3666 8006
3660 8005 3657 8013
TIME...MOT...LOC 1901Z 152DEG 24KT 3664 8012
$$
VAC141-171915-
/O.CON.KRNK.TO.W.0013.000000T0000Z-210817T1915Z/
Patrick VA-
302 PM EDT Tue Aug 17 2021
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 315 PM EDT FOR
SOUTHEASTERN PATRICK COUNTY...
At 301 PM EDT, a shower capable of producing a tornado was located
over Critz, or near Spencer, moving northwest 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.
Locations impacted include...
Patrick Springs...
Penns Store...
Critz...
and Buffalo Ridge.
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.
Locally heavy rain will quickly reduce visibility and result in
ponding of water on roadways, standing water in low lying areas, and
minor flooding of creeks, streams, and areas of poor drainage.
Drivers are urged to slow down and use extra caution to avoid
hydroplaning.
When it is safe to do so, please send your reports of hail of any
size, as well as reports of any wind damage, including downed trees
or large limbs, to the National Weather Service by calling toll free
at 1...8 6 6...2 1 5...4 3 2 4. Reports and pictures can also be
shared on the National Weather Service Blacksburg Facebook page and
on Twitter.
&&
LAT...LON 3670 8030 3674 8034 3682 8011 3676 8009
3672 8009 3670 8008 3668 8008 3666 8006
3660 8005 3657 8013
TIME...MOT...LOC 1901Z 152DEG 24KT 3664 8012
TORNADO...RADAR INDICATED
MAX HAIL SIZE...0.00 IN
$$
RRThe office that day
Everything else NWS Blacksburg, VA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 17, 3:37 AM EDT | Flash Flood Watch | RNK | Alleghany, Ashe, Surry, Watauga, Wilkes | 24 hr |
| Aug 17, 11:48 AM EDT | Tornado Warning | RNK | Wilkes | 42 min |
| Aug 17, 12:35 PM EDT | Tornado Warning | RNK | Wilkes, Yadkin | 40 min |
| Aug 17, 12:46 PM EDT | Special Weather Statement | RNK | Wilkes | 44 min |
| Aug 17, 1:19 PM EDT | Tornado Warning | RNK | Wilkes | 41 min |
| Aug 17, 1:48 PM EDT | Tornado Warning | RNK | Alleghany, Wilkes | 42 min |
| Aug 17, 1:58 PM EDT | Special Weather Statement | RNK | Alleghany, Caswell, Rockingham, Stokes, Surry, Yadkin | 32 min |
| Aug 17, 2:18 PM EDT | Tornado Warning | RNK | Caswell | 32 min |
| Aug 17, 4:35 PM EDT | Special Weather Statement | RNK | Surry | 25 min |
| Aug 17, 5:05 PM EDT | Special Weather Statement | RNK | Alleghany | 40 min |
| Aug 17, 6:50 PM EDT | Special Weather Statement | RNK | Watauga | 25 min |
| Aug 17, 7:13 PM EDT | Flash Flood Warning | RNK | Watauga | 8 hr |
| Aug 17, 7:54 PM EDT | Special Weather Statement | RNK | Ashe | 36 min |
| Aug 16, 8:10 PM EDT | Special Weather Statement | RNK | Bedford, Campbell, Charlotte, City of Lynchburg | 65 min |
| Aug 16, 8:45 PM EDT | Areal Flood Advisory | RNK | Bland, Tazewell | 2 hr |
| Aug 16, 9:14 PM EDT | Special Weather Statement | RNK | Amherst, Appomattox, Buckingham | 46 min |
| Aug 17, 9:32 AM EDT | Areal Flood Advisory | RNK | Carroll | 5 hr |
| Aug 17, 2:27 PM EDT | Special Weather Statement | RNK | Grayson | 48 min |
| Aug 17, 2:53 PM EDT | Flood Watch | RNK | Alleghany, Amherst, Bath, Bedford, Botetourt, Craig and 12 more | 12 min |
| Aug 17, 3:17 PM EDT | Tornado Warning | RNK | Franklin, Henry, Patrick | 28 min |
| Aug 17, 3:18 PM EDT | Tornado Warning | RNK | Franklin, Henry, City of Martinsville | 27 min |
| Aug 17, 3:20 PM EDT | Special Weather Statement | RNK | Carroll, Floyd, Franklin, Montgomery, Patrick, Pittsylvania and 3 more | 40 min |
| Aug 17, 3:41 PM EDT | Tornado Warning | RNK | Franklin, Henry, Patrick | 34 min |
| Aug 17, 3:58 PM EDT | Special Weather Statement | RNK | Bedford, Craig, Giles, Montgomery, Roanoke, City of Roanoke and 1 more | 47 min |
| Aug 17, 4:09 PM EDT | Areal Flood Advisory | RNK | City of Roanoke, City of Salem | 3 hr |
| Aug 17, 4:20 PM EDT | Special Weather Statement | RNK | Henry, Patrick, City of Martinsville | 40 min |
| Aug 17, 4:45 PM EDT | Special Weather Statement | RNK | Bedford, Botetourt, Craig, Roanoke, City of Roanoke, City of Salem | 45 min |
| Aug 17, 5:23 PM EDT | Special Weather Statement | RNK | Appomattox, Buckingham | 52 min |
| Aug 17, 5:34 PM EDT | Tornado Warning | RNK | Bedford, Campbell, City of Lynchburg | 26 min |
| Aug 17, 6:05 PM EDT | Special Weather Statement | RNK | Amherst, City of Lynchburg | 40 min |
| Aug 17, 6:45 PM EDT | Special Weather Statement | RNK | City of Lynchburg | 45 min |
| Aug 17, 7:42 PM EDT | Areal Flood Advisory | RNK | Amherst | 79 min |
Nearby
Tornado Warnings in North Carolina, 2021Tornado Warnings in Virginia, 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.