Alert archive / North Carolina / Tornado Warnings in 2021
Tornado Warning 8, NWS Blacksburg, VA
NWS Blacksburg, VA issued this tornado warning at Aug 17, 2021, 11:48 AM EDT for Wilkes County, North Carolina. It was in force for 42 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, 11:48 AM EDT (15:48 UTC)
- Expired
- Aug 17, 2021, 12:30 PM EDT
- In force
- 42 min
- Issued by
- NWS Blacksburg, VA
- Area
- Storm-based polygon
- Tornado
- Observed
- Hail
- 0.0 in
County Wilkes County, NC
The radar
The Roanoke radar (KFCX), 129 km from the middle of the area, began a volume at 15:49 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 nearest sounding before it
Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 3.8 hours before the alert went out and 120 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.
710
WFUS51 KRNK 171548
TORRNK
NCC193-171630-
/O.NEW.KRNK.TO.W.0008.210817T1548Z-210817T1630Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service BLACKSBURG VA
1148 AM EDT Tue Aug 17 2021
The National Weather Service in BLACKSBURG has issued a
* Tornado Warning for...
Wilkes County in northwestern North Carolina...
* Until 1230 PM EDT.
* At 1147 AM EDT, a tornado has been confirmed by Alexander County
Law Enforcement embedded within a heavy rain shower located in
northern Alexander county just west of Love Valley, or near
Taylorsville, moving northwest at 25 mph.
HAZARD...Damaging tornado.
SOURCE...Law enforcement 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.
* Locations impacted include...
North Wilkesboro...
Wilkesboro...
Boomer...
Wilbar...
Mc Grady...
Mulberry...
and Wilkesboro Reservoir.
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!
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 3626 8144 3629 8140 3629 8137 3631 8136
3641 8116 3606 8099 3604 8104 3603 8106
3604 8114 3603 8117 3604 8119 3603 8126
TIME...MOT...LOC 1547Z 153DEG 21KT 3598 8108
TORNADO...OBSERVED
MAX HAIL SIZE...0.00 IN
$$
RAB2 follow-up statements
025
WWUS51 KRNK 171608
SVSRNK
Severe Weather Statement
National Weather Service BLACKSBURG VA
1208 PM EDT Tue Aug 17 2021
NCC193-171630-
/O.CON.KRNK.TO.W.0008.000000T0000Z-210817T1630Z/
Wilkes NC-
1208 PM EDT Tue Aug 17 2021
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1230 PM EDT FOR
CENTRAL WILKES COUNTY...
At 1205 PM EDT, Doppler radar continues to indicate a possible
tornado near Moravian Falls. This was earlier detected as a
confirmed tornado by law enforcment near Love Valley was now located
over Moravian Falls, moving northwest at 25 mph.
HAZARD...Damaging tornado.
SOURCE...Law enforcement confirmed tornado. Radar indicated 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.
Locations impacted include...
North Wilkesboro...
Wilkesboro...
Wilbar...
Mc Grady...
Mulberry...
Buck...
and Millers Creek.
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!
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 3620 8133 3631 8136 3641 8116 3606 8099
3604 8104 3603 8106 3604 8114 3603 8117
3604 8119 3604 8120
TIME...MOT...LOC 1605Z 153DEG 21KT 3608 8114
TORNADO...OBSERVED
MAX HAIL SIZE...0.00 IN
$$
RAB637
WWUS51 KRNK 171629
SVSRNK
Severe Weather Statement
National Weather Service BLACKSBURG VA
1229 PM EDT Tue Aug 17 2021
NCC193-171638-
/O.EXP.KRNK.TO.W.0008.000000T0000Z-210817T1630Z/
Wilkes NC-
1229 PM EDT Tue Aug 17 2021
...THE TORNADO WARNING FOR WILKES COUNTY WILL EXPIRE AT 1230 PM
EDT...
The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore, the warning will be allowed to expire. However heavy rain
is still possible with this thunderstorm.
LAT...LON 3620 8133 3631 8136 3641 8116 3606 8099
3604 8104 3603 8106 3604 8114 3603 8117
3604 8119 3604 8120
TIME...MOT...LOC 1628Z 153DEG 21KT 3620 8121
$$
RABThe 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, 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, 2:43 PM EDT | Tornado Warning | RNK | Rockingham, Stokes | 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 |
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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.