Alert archive / Virginia / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 49, NWS Blacksburg, VA

June 10, 20217 counties in Virginia

NWS Blacksburg, VA issued this severe thunderstorm warning at Jun 10, 2021, 1:53 PM EDT for 7 counties in Virginia. It was in force for 51 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: Jun 10, 2021, 1:53 PM EDT (17:53 UTC)
Expired: Jun 10, 2021, 2:44 PM EDT
In force: 51 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, Franklin County, VA, Roanoke County, VA

The radar

The Roanoke radar (KFCX), 48 km from the middle of the area, began a volume at 17:55 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

Roanoke, VA (KRNK), launched 12:00Z, 5.9 hours before the alert went out and 39 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 185 J/kg
Mixed-layer CIN: -2 J/kg
Mixed-layer LCL: 549 m above ground
0-6 km bulk shear: 12 kt
0-1 km storm-relative helicity: 39 m²/s²
0-3 km storm-relative helicity: 55 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

596 
WUUS51 KRNK 101753
SVRRNK
VAC019-023-045-067-161-770-775-101900-
/O.NEW.KRNK.SV.W.0049.210610T1753Z-210610T1900Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service BLACKSBURG VA
153 PM EDT Thu Jun 10 2021

The National Weather Service in BLACKSBURG has issued a

* Severe Thunderstorm Warning for...
  Roanoke County in west central Virginia...
  Northeastern Craig County in southwestern Virginia...
  The City of Salem in west central Virginia...
  The City of Roanoke in west central Virginia...
  Northwestern Bedford County in south central Virginia...
  Botetourt County in west central Virginia...
  Northern Franklin County in west central Virginia...

* Until 300 PM EDT.

* At 152 PM EDT, severe thunderstorms were located along a line
  extending from near Oriskany to near Roanoke to near Copper Hill,
  moving east at 15 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...
  Bedford...
  Buchanan...
  Troutville...
  Boones Mill...
  Interstate 81 mile markers 140 to 160.

This includes The following Locations The Salem Fairgrounds, The
National D-Day Memorial, and Roanoke Regional Airport.
 
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 3766 7968 3755 7952 3732 7953 3703 7984
      3705 8012 3710 8011 3712 8013 3711 8018
      3720 8019 3729 8010 3763 8005 3769 7967
TIME...MOT...LOC 1752Z 266DEG 13KT 3756 7998 3730 8000 3712 8018 

HAIL...1.00IN
WIND...60MPH
 
$$

RAB

2 follow-up statements

173 
WWUS51 KRNK 101818
SVSRNK

Severe Weather Statement
National Weather Service BLACKSBURG VA
218 PM EDT Thu Jun 10 2021

VAC045-775-101827-
/O.CAN.KRNK.SV.W.0049.000000T0000Z-210610T1900Z/
Craig VA-City of Salem VA-
218 PM EDT Thu Jun 10 2021

...THE SEVERE THUNDERSTORM WARNING FOR 
NORTHEASTERN CRAIG  AND THE CITY OF SALEM IS CANCELLED...

The storms which prompted the warning have moved out of the warned 
area. Therefore, the warning has been cancelled.

Heavy rainfall continues in the area and a Flood Advisory includes
Salem and Roanoke City and Roanoke County through 400 PM EDT.

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 3769 7967 3766 7968 3754 7952 3732 7953
      3710 7979 3710 8011 3712 8013 3713 8018
      3720 8003 3749 8000 3758 7993
TIME...MOT...LOC 1817Z 266DEG 13KT 3756 7989 3731 7991 3713 8009 

$$

VAC019-023-067-161-770-101900-
/O.CON.KRNK.SV.W.0049.000000T0000Z-210610T1900Z/
Roanoke VA-City of Roanoke VA-Bedford VA-Botetourt VA-Franklin VA-
218 PM EDT Thu Jun 10 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 300 PM EDT
FOR
EASTERN ROANOKE...NORTHWESTERN BEDFORD...BOTETOURT AND NORTHWESTERN
FRANKLIN COUNTIES AND THE CITY OF ROANOKE...

At 217 PM EDT, severe thunderstorms were located along a line
extending from near Fincastle to near Vinton to near Bent Mountain,
moving east at 15 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...
Vinton...
Bedford...
Buchanan...
Troutville...
Boones Mill...
and Stewartsville.

This includes The following Locations The National D-Day Memorial 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.

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 3769 7967 3766 7968 3754 7952 3732 7953
      3710 7979 3710 8011 3712 8013 3713 8018
      3720 8003 3749 8000 3758 7993
TIME...MOT...LOC 1817Z 266DEG 13KT 3756 7989 3731 7991 3713 8009 

HAIL...1.00IN
WIND...60MPH
 
$$

RAB

162 
WWUS51 KRNK 101844
SVSRNK

Severe Weather Statement
National Weather Service BLACKSBURG VA
244 PM EDT Thu Jun 10 2021

VAC019-023-067-161-770-101854-
/O.CAN.KRNK.SV.W.0049.000000T0000Z-210610T1900Z/
Roanoke VA-City of Roanoke VA-Bedford VA-Botetourt VA-Franklin VA-
244 PM EDT Thu Jun 10 2021

...THE SEVERE THUNDERSTORM WARNING FOR 
EASTERN ROANOKE...NORTHWESTERN BEDFORD...BOTETOURT AND NORTHWESTERN
FRANKLIN COUNTIES AND THE CITY OF ROANOKE IS CANCELLED...

The storms which prompted the warning have weakened and moved out of 
the warned area. Therefore, the warning has been cancelled.

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 3769 7967 3766 7968 3754 7952 3732 7953
      3710 7979 3710 8011 3712 8013 3713 8018
      3720 8003 3749 8000 3758 7993
TIME...MOT...LOC 1842Z 266DEG 13KT 3757 7978 3732 7980 3714 7998 

$$

RAB

The office that day

Everything else NWS Blacksburg, VA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 10, 12:29 PM EDT	Special Weather Statement	RNK	Amherst, Appomattox, Buckingham	61 min
Jun 10, 1:14 PM EDT	Flash Flood Watch	RNK	Alleghany, Amherst, Appomattox, Bath, Buckingham, Rockbridge and 3 more	11 hr
Jun 10, 1:14 PM EDT	Flash Flood Watch	RNK	Alleghany, Amherst, Appomattox, Bath, Bedford, Bland and 31 more	33 hr
Jun 10, 1:33 PM EDT	Special Weather Statement	RNK	Botetourt, City of Roanoke, City of Salem	57 min
Jun 10, 2:06 PM EDT	Areal Flood Advisory	RNK	Roanoke, City of Roanoke, City of Salem	114 min
Jun 10, 4:41 PM EDT	Special Weather Statement	RNK	Campbell	34 min
Jun 10, 5:15 PM EDT	Special Weather Statement	RNK	Campbell, City of Lynchburg	30 min
Jun 10, 5:44 PM EDT	Special Weather Statement	RNK	Appomattox	46 min
Jun 10, 7:50 PM EDT	Special Weather Statement	RNK	Alleghany, City of Covington	25 min
Jun 10, 7:59 PM EDT	Areal Flood Advisory	RNK	Alleghany, Botetourt, City of Covington	2 hr

Nearby

Severe Thunderstorm Warnings in Virginia, 2021 Every 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.