Alert archive / Virginia / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 84, NWS Blacksburg, VA

July 17, 20214 counties in Virginia

NWS Blacksburg, VA issued this severe thunderstorm warning at Jul 17, 2021, 1:56 PM EDT for 4 counties in Virginia. It was in force for 64 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: Jul 17, 2021, 1:56 PM EDT (17:56 UTC)
Expired: Jul 17, 2021, 3:00 PM EDT
In force: 64 min
Issued by: NWS Blacksburg, VA
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Amherst County, VA, Appomattox County, VA, Campbell County, VA, City of Lynchburg, VA

The radar

The Roanoke radar (KFCX), 115 km from the middle of the area, began a volume at 17:59 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
Jul 17, 2:15 PM EDT	TSTM WND DMG	1 Ese Rustburg, VA	TREE DOWN ON VILLAGE HIGHWAY.
Jul 17, 2:50 PM EDT	TSTM WND DMG	3 Sw Riverville, VA	ONE TREE DOWN.
Jul 17, 2:52 PM EDT	TSTM WND DMG	3 Sw Concord, VA	TREE DOWN.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Roanoke, VA (KRNK), launched 12:00Z, 5.9 hours before the alert went out and 44 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: 428 J/kg
Mixed-layer CIN: -51 J/kg
Mixed-layer LCL: 989 m above ground
0-6 km bulk shear: 22 kt
0-1 km storm-relative helicity: -20 m²/s²
0-3 km storm-relative helicity: 46 m²/s²
Significant tornado parameter: -0.0
Supercell composite: -0.0

Open this sounding in Storm Lab

The text

As transmitted.

352 
WUUS51 KRNK 171756
SVRRNK
VAC009-011-031-680-171900-
/O.NEW.KRNK.SV.W.0084.210717T1756Z-210717T1900Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service BLACKSBURG VA
156 PM EDT Sat Jul 17 2021

The National Weather Service in BLACKSBURG has issued a

* Severe Thunderstorm Warning for...
  Western Appomattox County in central Virginia...
  Campbell County in central Virginia...
  Southeastern Amherst County in central Virginia...
  The City of Lynchburg in central Virginia...

* Until 300 PM EDT.

* At 156 PM EDT, a severe thunderstorm was located near Gladys, or 7
  miles southwest of Rustburg, moving northeast 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...
  Lynchburg...
  Appomattox...
  Concord...
  Rustburg...
  Madison Heights...
  Gladys...
  and Long Island.

This includes The following Locations Liberty University and
Lynchburg 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 3722 7874 3723 7878 3720 7881 3720 7883
      3718 7883 3708 7910 3730 7930 3739 7923
      3741 7926 3742 7924 3743 7927 3745 7926
      3745 7925 3747 7921 3750 7894 3724 7869
TIME...MOT...LOC 1756Z 230DEG 14KT 3719 7915 

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

BMG

3 follow-up statements

493 
WWUS51 KRNK 171819
SVSRNK

Severe Weather Statement
National Weather Service BLACKSBURG VA
219 PM EDT Sat Jul 17 2021

VAC009-680-171829-
/O.CAN.KRNK.SV.W.0084.000000T0000Z-210717T1900Z/
Amherst VA-City of Lynchburg VA-
219 PM EDT Sat Jul 17 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN AMHERST AND THE 
CITY OF LYNCHBURG IS CANCELLED...
    
The severe thunderstorm which prompted the warning has 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 3724 7872 3722 7874 3723 7878 3720 7881
      3720 7883 3718 7884 3708 7910 3718 7918
      3732 7908 3738 7908 3748 7897 3748 7894
      3750 7894 3724 7869
TIME...MOT...LOC 1819Z 230DEG 11KT 3730 7897 

$$

VAC011-031-171900-
/O.CON.KRNK.SV.W.0084.000000T0000Z-210717T1900Z/
Appomattox VA-Campbell VA-
219 PM EDT Sat Jul 17 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 300 PM EDT
FOR WESTERN APPOMATTOX AND EASTERN CAMPBELL COUNTIES...

At 219 PM EDT, a severe thunderstorm was located near Concord, moving
northeast at 15 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

Locations impacted include...
Appomattox...
Concord...
Rustburg...
Mike...
Gladys...
Long Island...
and Stonewall.

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 3724 7872 3722 7874 3723 7878 3720 7881
      3720 7883 3718 7884 3708 7910 3718 7918
      3732 7908 3738 7908 3748 7897 3748 7894
      3750 7894 3724 7869
TIME...MOT...LOC 1819Z 230DEG 11KT 3730 7897 

HAIL...<.75IN
WIND...60MPH
 
$$

BMG

049 
WWUS51 KRNK 171831
SVSRNK

Severe Weather Statement
National Weather Service BLACKSBURG VA
231 PM EDT Sat Jul 17 2021

VAC011-031-171900-
/O.CON.KRNK.SV.W.0084.000000T0000Z-210717T1900Z/
Appomattox VA-Campbell VA-
231 PM EDT Sat Jul 17 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 300 PM EDT
FOR SOUTHWESTERN APPOMATTOX AND EASTERN CAMPBELL COUNTIES...

At 230 PM EDT, a severe thunderstorm was located near Mike, or 8
miles north of Brookneal, 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...
Appomattox...
Rustburg...
Mike...
Gladys...
Spout Spring...
Spring Mills...
and Evergreen.

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 3724 7872 3722 7874 3723 7878 3720 7881
      3720 7883 3718 7884 3710 7905 3722 7911
      3731 7904 3741 7885 3724 7869
TIME...MOT...LOC 1830Z 248DEG 11KT 3718 7897 

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

BMG

397 
WWUS51 KRNK 171850
SVSRNK

Severe Weather Statement
National Weather Service BLACKSBURG VA
250 PM EDT Sat Jul 17 2021

VAC011-031-171900-
/O.EXP.KRNK.SV.W.0084.000000T0000Z-210717T1900Z/
Appomattox VA-Campbell VA-
250 PM EDT Sat Jul 17 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN APPOMATTOX AND 
EASTERN CAMPBELL COUNTIES WILL EXPIRE AT 300 PM EDT...
        
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire.

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 3724 7872 3722 7874 3723 7878 3720 7881
      3720 7883 3718 7884 3710 7905 3722 7911
      3731 7904 3741 7885 3724 7869
TIME...MOT...LOC 1850Z 230DEG 14KT 3722 7890 

$$

BMG

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 16, 8:21 PM EDT	Special Weather Statement	RNK	Wythe	24 min
Jul 17, 12:01 PM EDT	Special Weather Statement	RNK	Bedford, Franklin	29 min
Jul 17, 12:26 PM EDT	Severe Thunderstorm Warning	RNK	Franklin	49 min
Jul 17, 12:47 PM EDT	Special Weather Statement	RNK	Bedford	28 min
Jul 17, 1:20 PM EDT	Special Weather Statement	RNK	Franklin	25 min
Jul 17, 1:33 PM EDT	Special Weather Statement	RNK	Bedford	42 min
Jul 17, 1:38 PM EDT	Special Weather Statement	RNK	Carroll	37 min
Jul 17, 1:43 PM EDT	Special Weather Statement	RNK	Campbell	47 min
Jul 17, 1:45 PM EDT	Severe Thunderstorm Warning	RNK	Carroll, Patrick	43 min
Jul 17, 2:11 PM EDT	Areal Flood Advisory	RNK	Carroll, Floyd, Patrick	3 hr
Jul 17, 2:14 PM EDT	Areal Flood Advisory	RNK	Appomattox, Campbell	3 hr
Jul 17, 2:37 PM EDT	Severe Thunderstorm Warning	RNK	Appomattox, Campbell, Charlotte	53 min
Jul 17, 2:45 PM EDT	Special Weather Statement	RNK	Patrick	30 min
Jul 17, 2:47 PM EDT	Special Weather Statement	RNK	City of Martinsville	28 min
Jul 17, 2:53 PM EDT	Severe Thunderstorm Warning	RNK	Franklin, Henry, Pittsylvania, City of Martinsville	36 min
Jul 17, 2:59 PM EDT	Special Weather Statement	RNK	Franklin	31 min
Jul 17, 3:00 PM EDT	Special Weather Statement	RNK	Prince Edward	15 min
Jul 17, 3:16 PM EDT	Areal Flood Advisory	RNK	Franklin	2 hr
Jul 17, 3:24 PM EDT	Special Weather Statement	RNK	Franklin	36 min
Jul 17, 3:27 PM EDT	Special Weather Statement	RNK	Tazewell	48 min
Jul 17, 3:42 PM EDT	Special Weather Statement	RNK	City of Danville	48 min
Jul 17, 3:48 PM EDT	Severe Thunderstorm Warning	RNK	Pittsylvania, City of Danville	57 min
Jul 17, 3:52 PM EDT	Areal Flood Advisory	RNK	Pittsylvania, City of Danville	3 hr
Jul 17, 3:54 PM EDT	Special Weather Statement	RNK	Halifax	36 min
Jul 17, 4:11 PM EDT	Flash Flood Warning	RNK	Pittsylvania, City of Danville	3 hr
Jul 17, 4:17 PM EDT	Special Weather Statement	RNK	Bland, Giles, Smyth, Tazewell	43 min
Jul 17, 4:22 PM EDT	Special Weather Statement	RNK	Charlotte	23 min
Jul 17, 4:26 PM EDT	Special Weather Statement	RNK	Halifax	34 min
Jul 17, 4:47 PM EDT	Special Weather Statement	RNK	Charlotte	28 min
Jul 17, 5:01 PM EDT	Special Weather Statement	RNK	Alleghany, Bath, Craig, Giles, City of Covington	59 min
Jul 17, 5:26 PM EDT	Special Weather Statement	RNK	Appomattox	34 min
Jul 17, 5:45 PM EDT	Special Weather Statement	RNK	Floyd	30 min
Jul 17, 6:04 PM EDT	Special Weather Statement	RNK	Amherst, Botetourt, Montgomery, Roanoke, Rockbridge, City of Buena Vista and 3 more	56 min
Jul 17, 6:19 PM EDT	Special Weather Statement	RNK	Floyd	26 min
Jul 17, 6:25 PM EDT	Severe Thunderstorm Warning	RNK	Amherst, Bedford, Botetourt, Rockbridge, City of Buena Vista, City of Lexington	65 min
Jul 17, 6:58 PM EDT	Special Weather Statement	RNK	City of Roanoke, City of Salem	47 min
Jul 17, 7:05 PM EDT	Special Weather Statement	RNK	Patrick	40 min
Jul 17, 7:10 PM EDT	Areal Flood Advisory	RNK	Carroll, Floyd, Grayson, Patrick	3 hr
Jul 17, 7:30 PM EDT	Severe Thunderstorm Warning	RNK	Bedford, Campbell, City of Lynchburg	39 min
Jul 17, 7:44 PM EDT	Severe Thunderstorm Warning	RNK	Carroll, Floyd, Franklin, Grayson, Henry, Patrick	61 min

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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.