Alert archive / North Carolina / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 203, NWS Blacksburg, VA
NWS Blacksburg, VA issued this severe thunderstorm warning at Aug 31, 2021, 6:07 PM EDT for Ashe County, Watauga County, Wilkes County, North Carolina. It was in force for 38 min. 3 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 31, 2021, 6:07 PM EDT (22:07 UTC)
- Expired
- Aug 31, 2021, 6:45 PM EDT
- In force
- 38 min
- Issued by
- NWS Blacksburg, VA
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Ashe County, NC, Watauga County, NC, Wilkes County, NC
The radar
The Roanoke radar (KFCX), 151 km from the middle of the area, began a volume at 22:12 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 31, 6:32 PM EDT | TSTM WND DMG | 2 Nne Aho, NC | TREE DOWN ON BAMBOO ROAD. TIME ESTIMATED FROM RADAR. |
| Aug 31, 6:36 PM EDT | TSTM WND DMG | 2 Sw Peoria, NC | TREE DOWN IN THE 8700 BLOCK OF NC HIGHWAY 321. TIME ESTIMATED FROM RADAR. |
| Aug 31, 6:41 PM EDT | TSTM WND DMG | 1 Ese Rutherwood, NC | TREE DOWN ALONG BLUE RIDGE PARKWAY NEAR MILEPOST 281. TIME ESTIMATED FROM RADAR. |
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, 10.1 hours before the alert went out and 163 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
- 379 J/kg
- Mixed-layer CIN
- -96 J/kg
- Mixed-layer LCL
- 1017 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 6 m²/s²
- 0-3 km storm-relative helicity
- 72 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted.
094
WUUS51 KRNK 312207
SVRRNK
NCC009-189-193-312245-
/O.NEW.KRNK.SV.W.0203.210831T2207Z-210831T2245Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service BLACKSBURG VA
607 PM EDT Tue Aug 31 2021
The National Weather Service in BLACKSBURG has issued a
* Severe Thunderstorm Warning for...
Western Wilkes County in northwestern North Carolina...
Watauga County in northwestern North Carolina...
Ashe County in northwestern North Carolina...
* Until 645 PM EDT.
* At 606 PM EDT, severe thunderstorms were located along a line
extending from Elk Park to near B.R. Parkway-Linville Falls To
Grandfather Mountain to near Darby, moving north at 50 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Boone...
Jefferson...
West Jefferson...
Blowing Rock...
Beech Mountain...
Lansing...
and Foscoe.
This includes The following Location Appalachian State University.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A few trees and power lines will be blown down in the warned area.
Storms will be accompanied by brief heavy rainfall, and little or no
lightning. Seek shelter inside an interior room.
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 3636 8180 3634 8176 3634 8171 3641 8174
3647 8170 3653 8171 3659 8168 3658 8139
3637 8130 3605 8139 3609 8146 3610 8151
3612 8154 3611 8181 3616 8182 3619 8186
3619 8189 3622 8191 3627 8189 3629 8192
TIME...MOT...LOC 2206Z 188DEG 44KT 3616 8197 3605 8179 3607 8149
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
WP2 follow-up statements
654
WWUS51 KRNK 312233
SVSRNK
Severe Weather Statement
National Weather Service BLACKSBURG VA
633 PM EDT Tue Aug 31 2021
NCC009-189-193-312245-
/O.CON.KRNK.SV.W.0203.000000T0000Z-210831T2245Z/
Wilkes NC-Watauga NC-Ashe NC-
633 PM EDT Tue Aug 31 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 645 PM EDT
FOR
NORTHWESTERN WILKES...WATAUGA AND ASHE COUNTIES...
At 633 PM EDT, severe thunderstorms were located along a line
extending from near Mountain City to near Silverstone to near
Glendale Springs, moving north at 45 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Boone...
Jefferson...
West Jefferson...
Blowing Rock...
Lansing...
Foscoe...
and Glendale Springs.
This includes The following Location Appalachian State University.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Prepare immediately for DAMAGING WINDS. For your safety, move to an
interior room on the lowest floor of a sturdy building. Stay away
from windows.
When it is safe to do so, please send your reports of hail of any
size, as well as reports of any wind damage, including downed trees
or large limbs, to the National Weather Service by calling toll free
at 1...8 6 6...2 1 5...4 3 2 4. Reports and pictures can also be
shared on the National Weather Service Blacksburg Facebook page and
on Twitter.
&&
LAT...LON 3636 8180 3634 8176 3634 8171 3641 8174
3647 8170 3653 8171 3659 8168 3658 8139
3637 8130 3615 8144 3614 8150 3613 8152
3613 8154 3612 8180 3616 8182 3619 8186
3620 8187 3623 8188 3627 8189 3630 8189
TIME...MOT...LOC 2233Z 188DEG 41KT 3648 8190 3636 8173 3635 8132
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
WP831
WWUS51 KRNK 312243
SVSRNK
Severe Weather Statement
National Weather Service BLACKSBURG VA
643 PM EDT Tue Aug 31 2021
NCC009-189-193-312252-
/O.EXP.KRNK.SV.W.0203.000000T0000Z-210831T2245Z/
Wilkes NC-Watauga NC-Ashe NC-
643 PM EDT Tue Aug 31 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN WILKES...WATAUGA
AND ASHE COUNTIES WILL EXPIRE AT 645 PM EDT...
The storms which prompted the warning have weakened. Therefore, the
warning will be allowed to expire.
However gusty winds are still possible with these thunderstorms.
LAT...LON 3636 8180 3634 8176 3634 8171 3641 8174
3647 8170 3653 8171 3659 8168 3658 8139
3637 8130 3615 8144 3614 8150 3613 8152
3613 8154 3612 8180 3616 8182 3619 8186
3620 8187 3623 8188 3627 8189 3630 8189
TIME...MOT...LOC 2242Z 188DEG 44KT 3658 8188 3646 8171 3645 8130
$$
BMGThe office that day
Everything else NWS Blacksburg, VA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 31, 1:42 AM EDT | Special Weather Statement | RNK | Ashe | 33 min |
| Aug 31, 2:59 PM EDT | Wind Advisory | RNK | Ashe, Watauga | 15 hr |
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.