Alert archive / Virginia / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 207, NWS Blacksburg, VA
NWS Blacksburg, VA issued this severe thunderstorm warning at Sep 8, 2021, 2:20 PM EDT for Patrick County, Virginia; Surry County, North Carolina. It was in force for 26 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
- Sep 8, 2021, 2:20 PM EDT (18:20 UTC)
- Expired
- Sep 8, 2021, 2:46 PM EDT
- In force
- 26 min
- Issued by
- NWS Blacksburg, VA
- Area
- Storm-based polygon
- Tornado
- Possible
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Surry County, NC, Patrick County, VA
The radar
The Roanoke radar (KFCX), 58 km from the middle of the area, began a volume at 18:20 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, 6.3 hours before the alert went out and 74 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
- 1161 J/kg
- Mixed-layer CIN
- -41 J/kg
- Mixed-layer LCL
- 818 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- 34 m²/s²
- 0-3 km storm-relative helicity
- 8 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
053
WUUS51 KRNK 081820
SVRRNK
NCC171-VAC141-081915-
/O.NEW.KRNK.SV.W.0207.210908T1820Z-210908T1915Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service BLACKSBURG VA
220 PM EDT Wed Sep 8 2021
The National Weather Service in BLACKSBURG has issued a
* Severe Thunderstorm Warning for...
Northeastern Surry County in northwestern North Carolina...
South central Patrick County in southwestern Virginia...
* Until 315 PM EDT.
* At 220 PM EDT, a severe thunderstorm was located near Woodville, or
near Flat Rock, moving east at 20 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...
Mount Airy...
and Flat Rock.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Prepare immediately for large hail and damaging winds, as well as
deadly cloud to ground lightning. For your safety, move to an
interior room on the lowest floor of a sturdy building. Stay away
from windows.
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 3649 8058 3655 8061 3661 8042 3655 8038
3655 8044 3652 8044
TIME...MOT...LOC 1820Z 261DEG 19KT 3653 8052
TORNADO...POSSIBLE
HAIL THREAT...OBSERVED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
RAB3 follow-up statements
368
WWUS51 KRNK 081828
SVSRNK
Severe Weather Statement
National Weather Service BLACKSBURG VA
228 PM EDT Wed Sep 8 2021
NCC171-VAC141-081915-
/O.CON.KRNK.SV.W.0207.000000T0000Z-210908T1915Z/
Surry NC-Patrick VA-
228 PM EDT Wed Sep 8 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 315 PM EDT
FOR NORTHEASTERN SURRY AND SOUTH CENTRAL PATRICK COUNTIES...
At 226 PM EDT, a severe thunderstorm was located over Woodville, or
just east of Mt. Airy, moving east at 20 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations impacted include...
Mount Airy...
and Flat Rock.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Prepare immediately for LARGE HAIL AND DAMAGING WINDS, as well as
deadly cloud to ground lightning. For your safety, move to an
interior room on the lowest floor of a sturdy building. Stay away
from windows. Several reports of pea to penny-sized hail were
previously reported with this storm.
Locally heavy rain will quickly reduce visibility and result in
ponding of water on roadways, standing water in low lying areas, and
minor flooding of creeks, streams, and areas of poor drainage.
Drivers are urged to slow down and use extra caution to avoid
hydroplaning.
When it is safe to do so, please send your reports of hail of any
size, as well as reports of any wind damage, including downed trees
or large limbs, to the National Weather Service by calling toll free
at 1...8 6 6...2 1 5...4 3 2 4. Reports and pictures can also be
shared on the National Weather Service Blacksburg Facebook page and
on Twitter.
&&
LAT...LON 3649 8058 3655 8061 3661 8042 3655 8038
3655 8044 3652 8044
TIME...MOT...LOC 1826Z 261DEG 19KT 3654 8048
TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
RAB295
WWUS51 KRNK 081840
SVSRNK
Severe Weather Statement
National Weather Service BLACKSBURG VA
240 PM EDT Wed Sep 8 2021
NCC171-081849-
/O.CAN.KRNK.SV.W.0207.000000T0000Z-210908T1915Z/
Surry NC-
240 PM EDT Wed Sep 8 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN SURRY COUNTY has
been CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
LAT...LON 3659 8048 3661 8042 3656 8038 3655 8038
3655 8045 3656 8045
TIME...MOT...LOC 1839Z 261DEG 19KT 3655 8040
$$
VAC141-081915-
/O.CON.KRNK.SV.W.0207.000000T0000Z-210908T1915Z/
Patrick VA-
240 PM EDT Wed Sep 8 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 315 PM EDT
FOR SOUTH CENTRAL PATRICK COUNTY...
At 239 PM EDT, a severe thunderstorm was located over Collinstown, or
near Francisco, moving east at 20 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
This severe thunderstorm will remain over mainly rural areas of
south central Patrick County.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Prepare immediately for LARGE HAIL AND DAMAGING WINDS, as well as
deadly cloud to ground lightning. For your safety, move to an
interior room on the lowest floor of a sturdy building. Stay away
from windows.
Locally heavy rain will quickly reduce visibility and result in
ponding of water on roadways, standing water in low lying areas, and
minor flooding of creeks, streams, and areas of poor drainage.
Drivers are urged to slow down and use extra caution to avoid
hydroplaning.
When it is safe to do so, please send your reports of hail of any
size, as well as reports of any wind damage, including downed trees
or large limbs, to the National Weather Service by calling toll free
at 1...8 6 6...2 1 5...4 3 2 4. Reports and pictures can also be
shared on the National Weather Service Blacksburg Facebook page and
on Twitter.
&&
LAT...LON 3659 8048 3661 8042 3656 8038 3655 8038
3655 8045 3656 8045
TIME...MOT...LOC 1839Z 261DEG 19KT 3655 8040
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
RAB211
WWUS51 KRNK 081846
SVSRNK
Severe Weather Statement
National Weather Service BLACKSBURG VA
246 PM EDT Wed Sep 8 2021
VAC141-081856-
/O.CAN.KRNK.SV.W.0207.000000T0000Z-210908T1915Z/
Patrick VA-
246 PM EDT Wed Sep 8 2021
...THE SEVERE THUNDERSTORM WARNING FOR
SOUTH CENTRAL PATRICK COUNTY IS CANCELLED...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning has been cancelled. However heavy rain is
still possible with this thunderstorm.
LAT...LON 3659 8048 3661 8042 3656 8038 3655 8038
3655 8045 3656 8045
TIME...MOT...LOC 1844Z 261DEG 19KT 3656 8035
$$
RABThe office that day
Everything else NWS Blacksburg, VA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 8, 10:48 AM EDT | Special Weather Statement | RNK | City of Danville | 42 min |
| Sep 8, 11:49 AM EDT | Special Weather Statement | RNK | Charlotte | 56 min |
| Sep 8, 1:21 PM EDT | Special Weather Statement | RNK | Carroll | 54 min |
| Sep 8, 1:24 PM EDT | Severe Thunderstorm Warning | RNK | Carroll | 37 min |
| Sep 8, 1:32 PM EDT | Severe Thunderstorm Warning | RNK | Carroll | 58 min |
| Sep 8, 2:02 PM EDT | Special Weather Statement | RNK | Floyd | 43 min |
| Sep 8, 2:22 PM EDT | Special Weather Statement | RNK | Floyd | 23 min |
| Sep 8, 2:43 PM EDT | Severe Thunderstorm Warning | RNK | Floyd, Franklin | 30 min |
| Sep 8, 2:51 PM EDT | Special Weather Statement | RNK | Bedford | 39 min |
| Sep 8, 3:15 PM EDT | Special Weather Statement | RNK | Franklin | 45 min |
| Sep 8, 3:19 PM EDT | Special Weather Statement | RNK | Bedford | 41 min |
| Sep 8, 3:24 PM EDT | Severe Thunderstorm Warning | RNK | Bedford, Botetourt, Rockbridge | 36 min |
| Sep 8, 4:10 PM EDT | Special Weather Statement | RNK | City of Buena Vista | 35 min |
| Sep 8, 10:00 AM EDT | Special Weather Statement | RNK | Caswell, Rockingham, Stokes | 60 min |
| Sep 8, 11:07 AM EDT | Special Weather Statement | RNK | Person | 38 min |
| Sep 8, 12:34 PM EDT | Special Weather Statement | RNK | Alleghany | 56 min |
| Sep 8, 12:35 PM EDT | Special Weather Statement | RNK | Wilkes | 40 min |
| Sep 8, 1:27 PM EDT | Special Weather Statement | RNK | Surry | 63 min |
| Sep 8, 1:47 PM EDT | Tornado Warning | RNK | Surry | 28 min |
| Sep 8, 2:15 PM EDT | Severe Thunderstorm Warning | RNK | Surry, Wilkes | 29 min |
| Sep 8, 2:34 PM EDT | Special Weather Statement | RNK | Wilkes | 56 min |
| Sep 8, 2:54 PM EDT | Special Weather Statement | RNK | Surry | 51 min |
| Sep 8, 3:04 PM EDT | Severe Thunderstorm Warning | RNK | Wilkes | 56 min |
| Sep 8, 3:31 PM EDT | Severe Thunderstorm Warning | RNK | Surry, Yadkin | 33 min |
| Sep 8, 4:03 PM EDT | Special Weather Statement | RNK | Wilkes | 27 min |
| Sep 8, 6:06 PM EDT | Special Weather Statement | RNK | Yadkin | 24 min |
| Sep 8, 6:34 PM EDT | Special Weather Statement | RNK | Forsyth | 26 min |
| Sep 8, 7:01 PM EDT | Special Weather Statement | RNK | Stokes | 29 min |
| Sep 8, 7:40 PM EDT | Special Weather Statement | RNK | Stokes | 35 min |
Nearby
Severe Thunderstorm Warnings in Virginia, 2021Severe 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.