Alert archive / Virginia / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 35, NWS Blacksburg, VA
NWS Blacksburg, VA issued this severe thunderstorm warning at May 4, 2021, 2:22 PM EDT for 9 counties in Virginia. It was in force for 53 min. 20 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
- May 4, 2021, 2:22 PM EDT (18:22 UTC)
- Expired
- May 4, 2021, 3:15 PM EDT
- In force
- 53 min
- Issued by
- NWS Blacksburg, VA
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Bedford County, VA, Botetourt County, VA, City of Roanoke, VA, City of Salem, VA, Craig County, VA, Floyd County, VA, Franklin County, VA, Montgomery County, VA, Roanoke County, VA
The radar
The Roanoke radar (KFCX), 28 km from the middle of the area, began a volume at 18:25 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 |
|---|---|---|---|
| May 4, 2:23 PM EDT | TSTM WND DMG | 2 Sw Glenvar, VA | 2 LARGE TREES DOWN ALONG US-460 IN THE DIXIE CAVERNS AREA. |
| May 4, 2:25 PM EDT | TSTM WND DMG | 1 W Salem City, VA | WINDS BLEW MULTIPLE LIMBS DOWN ALONG WEST RIVERSIDE DRIVE. |
| May 4, 2:27 PM EDT | TSTM WND DMG | 1 Sse Salem City, VA | MULTIPLE LIMBS AND TWO TREES WERE BLOWN DOWN ALONG APPERSON DRIVE NEAR THE AMERICAN LEGION. |
| May 4, 2:28 PM EDT | TSTM WND DMG | 3 W Salem City, VA | 30-50 FOOT TREE SNAPPED AND FELLED. |
| May 4, 2:31 PM EDT | TSTM WND DMG | 3 Wnw Roanoke, VA | TREE DOWN AT THE INTERSECTION OF WESTSIDE BLVD NW AND SALEM TURNPIKE. |
| May 4, 2:32 PM EDT | TSTM WND DMG | 2 Ssw Roanoke Airport, VA | A TREE WAS BLOWN DOWN AT THE INTERSECTION OF ANGUS ROAD AND GUERNSEY LANE. |
| May 4, 2:33 PM EDT | TSTM WND DMG | 2 Ne Cave Spring, VA | 3-INCH TREE LIMBS BROKEN. POWER POLES BROKEN. |
| May 4, 2:33 PM EDT | TSTM WND DMG | 2 Sw Roanoke, VA | WINDS BLEW LARGE LIMBS DOWN IN THE 1900 BLOCK OF GREENWOOD ROAD. |
| May 4, 2:33 PM EDT | TSTM WND DMG | Roanoke, VA | A TREE WAS BLOWN DOWN AT THE INTERSECTION OF 13TH STREET SW AND PATTERSON AVE. |
| May 4, 2:34 PM EDT | TSTM WND DMG | 2 Ssw Roanoke, VA | A TREE WAS BLOWN DOWN AT THE INTERSECTION OF BRANDON AVE AND CANTERBURY ROAD SW. |
| May 4, 2:37 PM EDT | TSTM WND DMG | 1 Wsw Hollins, VA | ONE TREE DOWN ALONG LAKEVIEW CIRCLE NW. |
| May 4, 2:39 PM EDT | TSTM WND DMG | 2 Sse Roanoke, VA | TREE DOWN ATOP MILL MOUNTAIN. |
| May 4, 2:40 PM EDT | TSTM WND DMG | 1 Se Daleville, VA | TREES UPROOTED OR SNAPPED. ROOF BLOWN OFF. |
| May 4, 2:42 PM EDT | TSTM WND DMG | 2 Sse Blue Ridge, VA | TREES DOWN ALONG ARCHWAY ROAD IN BLUE RIDGE, VA. |
| May 4, 2:45 PM EDT | TSTM WND DMG | Elliston, VA | A COUPLE OF TREES AND SEVERAL LIMBS DOWN ALONG U.S. 11/460 IN ELLISTON. |
| May 4, 2:47 PM EDT | TSTM WND DMG | 1 Ene Blue Ridge, VA | TREES DOWN ALONG FIELD AVE IN BLUE RIDGE. |
| May 4, 2:50 PM EDT | TSTM WND DMG | 2 Nne Vinton, VA | THE PUBLIC REPORTS A TREE DOWN ON THE NORTHBOUND LANE OF THE BLUE RIDGE PARKWAY. |
| May 4, 2:54 PM EDT | TSTM WND GST 57 | Roanoke Airport, VA | |
| May 4, 3:00 PM EDT | TSTM WND DMG | 2 Wnw Thaxton, VA | AT LEAST TWO MOBILE HOMES BLOWN OFF THEIR FOUNDATION IN THE ROBINCREST MOBILE HOME PARK BETWEEN MONTVALE AND THAXTON ALONG THE LYNCHBURG-SALEM TURNPIKE OR U.S. 460. SEVERAL LARGE TREES DOWN IN THE AREA AND CONSIDERABLE DEBRIS ALONG THE HIGHWAY AND IN THE MOBIL |
| May 4, 3:00 PM EDT | TSTM WND DMG | 2 W Salem City, VA | SPOTTER REPORTS SEVERAL LARGE TREES DOWN BLOCKING WILDWOOD ROAD NEAR THE FOOD LION SHOPPING CENTER IN THE WESTERN PART OF SALEM CITY. |
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 |
|---|---|---|---|
| May 4, 1:51 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Roanoke, VA (KRNK), launched 12:00Z, 6.4 hours before the alert went out and 48 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
- 649 J/kg
- Mixed-layer CIN
- -120 J/kg
- Mixed-layer LCL
- 750 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 116 m²/s²
- 0-3 km storm-relative helicity
- 105 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.6
The text
As transmitted.
612
WUUS51 KRNK 041822
SVRRNK
VAC019-023-045-063-067-121-161-770-775-041915-
/O.NEW.KRNK.SV.W.0035.210504T1822Z-210504T1915Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service BLACKSBURG VA
222 PM EDT Tue May 4 2021
The National Weather Service in BLACKSBURG has issued a
* Severe Thunderstorm Warning for...
Roanoke County in west central Virginia...
Southeastern Craig County in southwestern Virginia...
The City of Salem in west central Virginia...
Northeastern Floyd County in southwestern Virginia...
The City of Roanoke in west central Virginia...
Southwestern Bedford County in south central Virginia...
Southwestern Botetourt County in west central Virginia...
Northern Franklin County in west central Virginia...
Northeastern Montgomery County in southwestern Virginia...
* Until 315 PM EDT.
* At 222 PM EDT, a severe thunderstorm was located over Shawsville,
moving northeast at 30 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...
Roanoke...
Blacksburg...
Salem...
Christiansburg...
Vinton...
Troutville...
and Boones Mill.
This includes The following Locations The Salem Fairgrounds and
Roanoke Regional Airport.
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.
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 3699 8022 3727 8045 3757 7983 3716 7948
TIME...MOT...LOC 1822Z 247DEG 26KT 3714 8026
HAIL...1.00IN
WIND...60MPH
$$
VFJ3 follow-up statements
106
WWUS51 KRNK 041840
SVSRNK
Severe Weather Statement
National Weather Service BLACKSBURG VA
240 PM EDT Tue May 4 2021
VAC063-121-041850-
/O.CAN.KRNK.SV.W.0035.000000T0000Z-210504T1915Z/
Floyd VA-Montgomery VA-
240 PM EDT Tue May 4 2021
...THE SEVERE THUNDERSTORM WARNING FOR
NORTHEASTERN FLOYD AND NORTHEASTERN MONTGOMERY COUNTIES IS
CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 800 PM EDT for
central, south central, southwestern and west central Virginia.
When it is safe to do so, please send your reports of hail of any
size, as well as reports of any wind damage, including downed trees
or large limbs, to the National Weather Service by calling toll free
at 1...8 6 6...2 1 5...4 3 2 4. Reports and pictures can also be
shared on the National Weather Service Blacksburg Facebook page and
on Twitter.
LAT...LON 3711 8001 3739 8021 3757 7983 3716 7948
TIME...MOT...LOC 1840Z 243DEG 35KT 3725 8001
$$
VAC019-023-045-067-161-770-775-041915-
/O.CON.KRNK.SV.W.0035.000000T0000Z-210504T1915Z/
Roanoke VA-Craig VA-City of Salem VA-City of Roanoke VA-Bedford VA-
Botetourt VA-Franklin VA-
240 PM EDT Tue May 4 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 315 PM EDT
FOR
ROANOKE...SOUTHEASTERN CRAIG...SOUTHWESTERN BEDFORD...SOUTHWESTERN
BOTETOURT AND NORTHEASTERN FRANKLIN COUNTIES...THE CITY OF SALEM AND
THE CITY OF ROANOKE...
At 240 PM EDT, a severe thunderstorm was located over Cave Spring, or
near Roanoke, moving northeast at 40 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...
Roanoke...
Salem...
Vinton...
Troutville...
Boones Mill...
Stewartsville...
and Moneta.
This includes The following Locations The Salem Fairgrounds and
Roanoke Regional Airport.
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.
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 3711 8001 3739 8021 3757 7983 3716 7948
TIME...MOT...LOC 1840Z 243DEG 35KT 3725 8001
HAIL...1.00IN
WIND...60MPH
$$
VFJ126
WWUS51 KRNK 041857
SVSRNK
Severe Weather Statement
National Weather Service BLACKSBURG VA
257 PM EDT Tue May 4 2021
VAC045-770-775-041906-
/O.CAN.KRNK.SV.W.0035.000000T0000Z-210504T1915Z/
Craig VA-City of Salem VA-City of Roanoke VA-
257 PM EDT Tue May 4 2021
...THE SEVERE THUNDERSTORM WARNING FOR
SOUTHEASTERN CRAIG ...THE CITY OF SALEM AND THE CITY OF ROANOKE IS
CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 800 PM EDT for
central, south central, southwestern and west central Virginia.
When it is safe to do so, please send your reports of hail of any
size, as well as reports of any wind damage, including downed trees
or large limbs, to the National Weather Service by calling toll free
at 1...8 6 6...2 1 5...4 3 2 4. Reports and pictures can also be
shared on the National Weather Service Blacksburg Facebook page and
on Twitter.
LAT...LON 3712 7987 3730 7986 3756 7985 3757 7983
3716 7948
TIME...MOT...LOC 1856Z 247DEG 26KT 3730 7987
$$
VAC019-023-067-161-041915-
/O.CON.KRNK.SV.W.0035.000000T0000Z-210504T1915Z/
Roanoke VA-Bedford VA-Botetourt VA-Franklin VA-
257 PM EDT Tue May 4 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 315 PM EDT
FOR
EAST CENTRAL ROANOKE...SOUTHWESTERN BEDFORD...SOUTH CENTRAL BOTETOURT
AND NORTHEASTERN FRANKLIN COUNTIES...
At 256 PM EDT, a severe thunderstorm was located over Vinton, moving
northeast at 30 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Stewartsville...
Montvale...
Moneta...
Huddleston...
Northwest Smith Mountain Lake...
Goodview...
and Nace.
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 3712 7987 3730 7986 3756 7985 3757 7983
3716 7948
TIME...MOT...LOC 1856Z 247DEG 26KT 3730 7987
HAIL...<.75IN
WIND...60MPH
$$
VFJ634
WWUS51 KRNK 041905
SVSRNK
Severe Weather Statement
National Weather Service BLACKSBURG VA
305 PM EDT Tue May 4 2021
VAC019-023-067-161-041915-
/O.EXP.KRNK.SV.W.0035.000000T0000Z-210504T1915Z/
Roanoke VA-Bedford VA-Botetourt VA-Franklin VA-
305 PM EDT Tue May 4 2021
...THE SEVERE THUNDERSTORM WARNING FOR
EAST CENTRAL ROANOKE...SOUTHWESTERN BEDFORD...SOUTH CENTRAL BOTETOURT
AND NORTHEASTERN FRANKLIN COUNTIES WILL EXPIRE AT 315 PM EDT...
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire.
A Severe Thunderstorm Watch remains in effect until 800 PM EDT for
central, south central, southwestern and west central Virginia.
When it is safe to do so, please send your reports of hail of any
size, as well as reports of any wind damage, including downed trees
or large limbs, to the National Weather Service by calling toll free
at 1...8 6 6...2 1 5...4 3 2 4. Reports and pictures can also be
shared on the National Weather Service Blacksburg Facebook page and
on Twitter.
LAT...LON 3712 7987 3730 7986 3756 7985 3757 7983
3716 7948
TIME...MOT...LOC 1905Z 247DEG 26KT 3732 7981
$$
VFJThe office that day
Everything else NWS Blacksburg, VA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 4, 12:05 PM EDT | Special Weather Statement | RNK | Grayson, Smyth, Tazewell | 25 min |
| May 4, 12:31 PM EDT | Special Weather Statement | RNK | Bland, Grayson, Smyth, Tazewell, Wythe | 29 min |
| May 4, 1:23 PM EDT | Special Weather Statement | RNK | Rockbridge, City of Buena Vista, City of Lexington | 37 min |
| May 4, 1:30 PM EDT | Special Weather Statement | RNK | Bland, Craig, Floyd, Giles, Montgomery, Pulaski and 4 more | 30 min |
| May 4, 1:41 PM EDT | Severe Thunderstorm Warning | RNK | Carroll, Floyd, Montgomery, Pulaski, City of Radford | 49 min |
| May 4, 1:53 PM EDT | Special Weather Statement | RNK | Alleghany, City of Covington | 37 min |
| May 4, 2:01 PM EDT | Special Weather Statement | RNK | Rockbridge | 14 min |
| May 4, 2:10 PM EDT | Special Weather Statement | RNK | City of Roanoke, City of Salem | 35 min |
| May 4, 2:12 PM EDT | Areal Flood Advisory | RNK | Bedford, Franklin, Montgomery, Roanoke, City of Roanoke, City of Salem | 2 hr |
| May 4, 2:15 PM EDT | Severe Thunderstorm Warning | RNK | Alleghany, Bath, Botetourt, Rockbridge, City of Lexington | 60 min |
| May 4, 2:53 PM EDT | Severe Thunderstorm Warning | RNK | Amherst, Bedford, Botetourt, Campbell, Rockbridge, City of Buena Vista and 1 more | 67 min |
| May 4, 3:05 PM EDT | Severe Thunderstorm Warning | RNK | Alleghany, Amherst, Botetourt, Rockbridge, City of Lexington | 40 min |
| May 4, 3:35 PM EDT | Severe Thunderstorm Warning | RNK | Amherst, Appomattox, Buckingham, Campbell | 55 min |
| May 4, 3:50 PM EDT | Severe Thunderstorm Warning | RNK | Appomattox, Buckingham, Campbell, Charlotte | 55 min |
| May 4, 4:11 PM EDT | Special Weather Statement | RNK | Buckingham | 34 min |
Nearby
Severe Thunderstorm Warnings in Virginia, 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.