Alert archive / North Carolina / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 129, NWS Blacksburg, VA
NWS Blacksburg, VA issued this severe thunderstorm warning at Aug 7, 2021, 4:47 PM EDT for 4 counties in North Carolina. It was in force for 58 min. 2 reports 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 7, 2021, 4:47 PM EDT (20:47 UTC)
- Expired
- Aug 7, 2021, 5:45 PM EDT
- In force
- 58 min
- Issued by
- NWS Blacksburg, VA
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Alleghany County, NC, Ashe County, NC, Watauga County, NC, Wilkes County, NC
The radar
The Roanoke radar (KFCX), 110 km from the middle of the area, began a volume at 20:48 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 7, 4:53 PM EDT | TSTM WND DMG | 4 E Wagoner, NC | ONE TREE DOWN AT THE INTERSECTION OF ORE KNOB ROAD AND LITTLE PEAK CREEK ROAD. TIME ESTIMATED BY RADAR. |
| Aug 7, 5:26 PM EDT | HAIL 1 | 3 Ssw Whitehead, NC |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 8.8 hours before the alert went out and 132 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
- 17 J/kg
- Mixed-layer CIN
- -87 J/kg
- Mixed-layer LCL
- 543 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 36 m²/s²
- 0-3 km storm-relative helicity
- 67 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
The text
As transmitted.
508
WUUS51 KRNK 072047
SVRRNK
NCC005-009-189-193-072145-
/O.NEW.KRNK.SV.W.0129.210807T2047Z-210807T2145Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service BLACKSBURG VA
447 PM EDT Sat Aug 7 2021
The National Weather Service in BLACKSBURG has issued a
* Severe Thunderstorm Warning for...
Alleghany County in northwestern North Carolina...
Northwestern Wilkes County in northwestern North Carolina...
East central Watauga County in northwestern North Carolina...
Central Ashe County in northwestern North Carolina...
* Until 545 PM EDT.
* At 447 PM EDT, severe thunderstorms were located along a line
extending from near Piney Creek to near Todd, moving east at 10
mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage
to roofs, siding, and trees.
* Locations impacted include...
Boone...
Sparta...
Jefferson...
West Jefferson...
Glendale Springs...
Deep Gap...
and Mc Grady.
This includes The following Location Appalachian State University.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Prepare immediately for large hail and damaging winds. For your
safety, move to an interior room on the lowest floor of a sturdy
building. Stay away from windows.
Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
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 3658 8139 3657 8116 3657 8102 3656 8101
3618 8135 3621 8170
TIME...MOT...LOC 2047Z 271DEG 6KT 3653 8135 3627 8157
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
RR5 follow-up statements
153
WWUS51 KRNK 072057
SVSRNK
Severe Weather Statement
National Weather Service BLACKSBURG VA
457 PM EDT Sat Aug 7 2021
NCC005-009-189-193-072145-
/O.CON.KRNK.SV.W.0129.000000T0000Z-210807T2145Z/
Alleghany NC-Wilkes NC-Watauga NC-Ashe NC-
457 PM EDT Sat Aug 7 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 545 PM EDT
FOR
WESTERN ALLEGHANY...NORTHWESTERN WILKES...EAST CENTRAL WATAUGA AND
SOUTHEASTERN ASHE COUNTIES IN NORTHWESTERN NORTH CAROLINA...
At 457 PM EDT, severe thunderstorms were located along a line
extending from near Piney Creek to near Fleetwood, moving east at 5
mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations impacted include...
Sparta...
Laurel Springs...
Glendale Springs...
Wilbar...
Deep Gap...
Mc Grady...
and Fleetwood.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Prepare immediately for LARGE HAIL AND DAMAGING WINDS. For your
safety, move to an interior room on the lowest floor of a sturdy
building. Stay away from windows.
Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
When it is safe to do so, please send your reports of hail of any
size, as well as reports of any wind damage, including downed trees
or large limbs, to the National Weather Service by calling toll free
at 1...8 6 6...2 1 5...4 3 2 4. Reports and pictures can also be
shared on the National Weather Service Blacksburg Facebook page and
on Twitter.
&&
LAT...LON 3654 8132 3657 8116 3657 8102 3656 8101
3618 8135 3621 8162
TIME...MOT...LOC 2057Z 271DEG 6KT 3653 8133 3627 8155
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
RR161
WWUS51 KRNK 072116
SVSRNK
Severe Weather Statement
National Weather Service BLACKSBURG VA
516 PM EDT Sat Aug 7 2021
NCC005-009-189-193-072145-
/O.CON.KRNK.SV.W.0129.000000T0000Z-210807T2145Z/
Alleghany NC-Wilkes NC-Watauga NC-Ashe NC-
516 PM EDT Sat Aug 7 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 545 PM EDT
FOR
CENTRAL ALLEGHANY...NORTHWESTERN WILKES...EASTERN WATAUGA AND
SOUTHEASTERN ASHE COUNTIES IN NORTHWESTERN NORTH CAROLINA...
At 516 PM EDT, severe thunderstorms were located along a line
extending from Piney Creek to near Fleetwood, moving east at 5 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations impacted include...
Sparta...
Laurel Springs...
Glendale Springs...
Wilbar...
Deep Gap...
Mc Grady...
and Stratford.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Prepare immediately for LARGE HAIL AND DAMAGING WINDS. For your
safety, move to an interior room on the lowest floor of a sturdy
building. Stay away from windows.
Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
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 3653 8125 3654 8119 3654 8108 3656 8101
3618 8135 3620 8157
TIME...MOT...LOC 2116Z 271DEG 6KT 3653 8129 3627 8151
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
RR632
WWUS51 KRNK 072131
SVSRNK
Severe Weather Statement
National Weather Service BLACKSBURG VA
531 PM EDT Sat Aug 7 2021
NCC189-072141-
/O.CAN.KRNK.SV.W.0129.000000T0000Z-210807T2145Z/
Watauga NC-
531 PM EDT Sat Aug 7 2021
...THE SEVERE THUNDERSTORM WARNING FOR
EAST CENTRAL WATAUGA COUNTY IS CANCELLED...
The storms which prompted the warning have moved out of the warned
area. Therefore, the warning has been cancelled.
LAT...LON 3619 8146 3620 8146 3623 8147 3654 8116
3654 8108 3656 8101 3618 8135
TIME...MOT...LOC 2131Z 271DEG 6KT 3653 8126 3627 8148
$$
NCC005-009-193-072145-
/O.CON.KRNK.SV.W.0129.000000T0000Z-210807T2145Z/
Alleghany NC-Wilkes NC-Ashe NC-
531 PM EDT Sat Aug 7 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 545 PM EDT
FOR
CENTRAL ALLEGHANY...NORTHWESTERN WILKES AND SOUTHEASTERN ASHE
COUNTIES IN NORTHWESTERN NORTH CAROLINA...
At 531 PM EDT, severe thunderstorms were located along a line
extending from near Scottville to near Cascade Falls, moving east at
5 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations impacted include...
Sparta...
Laurel Springs...
Wilbar...
Mc Grady...
Whitehead...
Maple Springs...
and Twin Oaks.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Prepare immediately for LARGE HAIL AND DAMAGING WINDS. For your
safety, move to an interior room on the lowest floor of a sturdy
building. Stay away from windows.
Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
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 3619 8146 3620 8146 3623 8147 3654 8116
3654 8108 3656 8101 3618 8135
TIME...MOT...LOC 2131Z 271DEG 6KT 3653 8126 3627 8148
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
RR929
WWUS51 KRNK 072136
SVSRNK
Severe Weather Statement
National Weather Service BLACKSBURG VA
536 PM EDT Sat Aug 7 2021
NCC009-072146-
/O.CAN.KRNK.SV.W.0129.000000T0000Z-210807T2145Z/
Ashe NC-
536 PM EDT Sat Aug 7 2021
...THE SEVERE THUNDERSTORM WARNING FOR
SOUTHEASTERN ASHE COUNTY IS CANCELLED...
The storms which prompted the warning have moved out of the warned
area. Therefore, the warning has been cancelled.
LAT...LON 3631 8130 3654 8110 3654 8108 3656 8101
3629 8125
TIME...MOT...LOC 2136Z 271DEG 6KT 3653 8125 3627 8147
$$
NCC005-193-072145-
/O.CON.KRNK.SV.W.0129.000000T0000Z-210807T2145Z/
Alleghany NC-Wilkes NC-
536 PM EDT Sat Aug 7 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 545 PM EDT
FOR
CENTRAL ALLEGHANY AND NORTH CENTRAL WILKES COUNTIES IN NORTHWESTERN
NORTH CAROLINA...
At 536 PM EDT, severe thunderstorms were located along a line
extending from near Stratford to Cascade Falls, moving east at 5 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations impacted include...
Sparta...
Mc Grady...
Whitehead...
and Doughton Park.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Prepare immediately for LARGE HAIL AND DAMAGING WINDS. For your
safety, move to an interior room on the lowest floor of a sturdy
building. Stay away from windows.
Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
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 3631 8130 3654 8110 3654 8108 3656 8101
3629 8125
TIME...MOT...LOC 2136Z 271DEG 6KT 3653 8125 3627 8147
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
RR968
WWUS51 KRNK 072149
SVSRNK
Severe Weather Statement
National Weather Service BLACKSBURG VA
549 PM EDT Sat Aug 7 2021
NCC005-193-072158-
/O.EXP.KRNK.SV.W.0129.000000T0000Z-210807T2145Z/
Alleghany NC-Wilkes NC-
549 PM EDT Sat Aug 7 2021
...THE SEVERE THUNDERSTORM WARNING FOR
CENTRAL ALLEGHANY AND NORTH CENTRAL WILKES COUNTIES IN NORTHWESTERN
NORTH CAROLINA HAS EXPIRED...
The storms which prompted the warning continue but this warning is
expiring. Therefore, a new warning has been issued.
Remember, a Severe Thunderstorm Warning still remains in effect!
LAT...LON 3631 8130 3654 8110 3654 8108 3656 8101
3629 8125
TIME...MOT...LOC 2148Z 271DEG 6KT 3653 8123 3627 8145
$$
RRThe office that day
Everything else NWS Blacksburg, VA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 7, 3:28 PM EDT | Special Weather Statement | RNK | Ashe | 62 min |
| Aug 7, 3:54 PM EDT | Special Weather Statement | RNK | Wilkes | 51 min |
| Aug 7, 4:24 PM EDT | Severe Thunderstorm Warning | RNK | Watauga, Wilkes | 43 min |
| Aug 7, 4:34 PM EDT | Special Weather Statement | RNK | Alleghany, Watauga | 26 min |
| Aug 7, 4:39 PM EDT | Areal Flood Advisory | RNK | Wilkes | 3 hr |
| Aug 7, 5:02 PM EDT | Special Weather Statement | RNK | Caldwell | 28 min |
| Aug 7, 5:24 PM EDT | Severe Thunderstorm Warning | RNK | Alleghany, Surry, Wilkes | 66 min |
| Aug 7, 5:38 PM EDT | Special Weather Statement | RNK | Alleghany | 37 min |
| Aug 7, 5:40 PM EDT | Severe Thunderstorm Warning | RNK | Alleghany, Surry | 65 min |
| Aug 7, 6:29 PM EDT | Special Weather Statement | RNK | Surry, Yadkin | 46 min |
| Aug 7, 6:54 PM EDT | Severe Thunderstorm Warning | RNK | Stokes, Surry, Yadkin | 66 min |
Nearby
Severe Thunderstorm Warnings in North Carolina, 2021Every severe thunderstorm warning 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.