Alert archive / Virginia / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 252, NWS Blacksburg, VA

August 23, 20194 counties in Virginia

NWS Blacksburg, VA issued this severe thunderstorm warning at Aug 23, 2019, 3:37 PM EDT for 4 counties in Virginia. It was in force for 53 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 23, 2019, 3:37 PM EDT (19:37 UTC)
Expired: Aug 23, 2019, 4:30 PM EDT
In force: 53 min
Issued by: NWS Blacksburg, VA
Area: Storm-based polygon
Hail: 0.75 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), 128 km from the middle of the area, began a volume at 19:36 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 23, 3:54 PM EDT	TSTM WND DMG	1 E Concord, VA	LARGE TREE DOWN IN THE 1000 BLOCK OF PHOEBE POND ROAD. TIME ESTIMATED FROM RADAR.
Aug 23, 4:00 PM EDT	TSTM WND DMG	3 Nne Evergreen, VA	CORRECTS PREVIOUS TSTM WND DMG REPORT FROM 3 NNE EVERGREEN. TREE DOWN ON POWER LINES IN THE 1500 BLOCK OF MORNING STAR ROAD. TIME ESTIMATED FROM RADAR.
Aug 23, 4:00 PM EDT	TSTM WND DMG	3 Nne Evergreen, VA	TREE DOWN ON POWER LINES IN THE 1500 BLOCK OF MORNING STAR ROAD. TIME ESTIMATED FROM RADAR.

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
Aug 23, 3:24 PM EDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Roanoke, VA (KRNK), launched 12:00Z, 7.6 hours before the alert went out and 57 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: 50 J/kg
Mixed-layer CIN: -129 J/kg
Mixed-layer LCL: 819 m above ground
0-6 km bulk shear: 19 kt
0-1 km storm-relative helicity: 68 m²/s²
0-3 km storm-relative helicity: 50 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

251 
WUUS51 KRNK 231937
SVRRNK
VAC009-011-031-680-232030-
/O.NEW.KRNK.SV.W.0252.190823T1937Z-190823T2030Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service BLACKSBURG VA
337 PM EDT Fri Aug 23 2019

The National Weather Service in BLACKSBURG has issued a

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

* Until 430 PM EDT

* At 337 PM EDT, severe thunderstorms were located along a line
  extending from Riverville to near Madison Heights, moving southeast
  at 20 mph.

  HAZARD...60 mph wind gusts. 

  SOURCE...Radar indicated. 

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

* Locations impacted include...
  Lynchburg...
  Appomattox...
  Bent Creek...
  Concord...
  and Rustburg.

This includes The following Location Liberty University.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

Prepare immediately for 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.

Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

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 3734 7860 3725 7868 3722 7873 3723 7878
      3720 7883 3703 7891 3735 7916 3733 7922
      3736 7926 3739 7923 3743 7927 3747 7918
      3750 7921 3760 7893 3755 7890 3754 7882
      3743 7868 3742 7864 3739 7863 3740 7859
TIME...MOT...LOC 1937Z 306DEG 18KT 3750 7889 3741 7909 

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

RAB

3 follow-up statements

796 
WWUS51 KRNK 232008
SVSRNK

Severe Weather Statement
National Weather Service BLACKSBURG VA
408 PM EDT Fri Aug 23 2019

VAC009-011-031-680-232030-
/O.CON.KRNK.SV.W.0252.000000T0000Z-190823T2030Z/
Appomattox VA-Campbell VA-Amherst VA-City of Lynchburg VA-
408 PM EDT Fri Aug 23 2019

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 430 PM EDT
FOR APPOMATTOX...EASTERN CAMPBELL...AND SOUTHEASTERN AMHERST COUNTIES AND
THE CITY OF LYNCHBURG...

At 407 PM EDT, severe thunderstorms were located along a line
extending from near Appomattox National Historic Park to near Spout
Spring, moving southeast at 20 mph.

HAZARD...60 mph wind gusts. 

SOURCE...Radar indicated. 

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

Locations impacted include...
Lynchburg...
Appomattox...
Bent Creek...
Concord...
and Rustburg.

This includes The following Location Liberty University.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

Prepare immediately for 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.

Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

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 3734 7860 3725 7868 3722 7873 3723 7878
      3720 7883 3703 7891 3735 7916 3733 7922
      3736 7926 3739 7923 3743 7927 3745 7918
      3744 7906 3748 7897 3755 7890 3754 7882
      3743 7868 3742 7864 3739 7863 3740 7859
TIME...MOT...LOC 2007Z 306DEG 18KT 3741 7874 3732 7894 

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

RAB

811 
WWUS51 KRNK 232020
SVSRNK

Severe Weather Statement
National Weather Service BLACKSBURG VA
420 PM EDT Fri Aug 23 2019

VAC009-031-680-232028-
/O.CAN.KRNK.SV.W.0252.000000T0000Z-190823T2030Z/
Campbell VA-Amherst VA-City of Lynchburg VA-
420 PM EDT Fri Aug 23 2019

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN CAMPBELL...
AND SOUTHEASTERN AMHERST COUNTIES AND THE CITY OF LYNCHBURG IS CANCELLED...

The storms which prompted the warning have weakened and no longer are
indicated as being severe. Therefore, the warning has been cancelled.

A Severe Thunderstorm Watch remains in effect until 1000 PM EDT for
central and south 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 3734 7860 3725 7868 3722 7873 3723 7878
      3726 7888 3733 7888 3738 7880 3743 7868
      3742 7864 3739 7863 3740 7859
TIME...MOT...LOC 2018Z 306DEG 18KT 3740 7871 3731 7891 

$$

VAC011-232030-
/O.CON.KRNK.SV.W.0252.000000T0000Z-190823T2030Z/
Appomattox VA-
420 PM EDT Fri Aug 23 2019

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 430 PM EDT
FOR SOUTHEASTERN APPOMATTOX COUNTY...

At 418 PM EDT, severe thunderstorms were located along a line
extending from near Appomattox National Historic Park to near Spout
Spring, moving southeast at 20 mph.

HAZARD...60 mph wind gusts. 

SOURCE...Radar indicated. 

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

Locations impacted include...
Appomattox...
Pamplin City...
Hixburg...
Appomattox National Historic Park...
and Evergreen.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Prepare immediately for 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.

Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

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 3734 7860 3725 7868 3722 7873 3723 7878
      3726 7888 3733 7888 3738 7880 3743 7868
      3742 7864 3739 7863 3740 7859
TIME...MOT...LOC 2018Z 306DEG 18KT 3740 7871 3731 7891 

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

RAB

276 
WWUS51 KRNK 232030
SVSRNK

Severe Weather Statement
National Weather Service BLACKSBURG VA
430 PM EDT Fri Aug 23 2019

VAC011-232039-
/O.EXP.KRNK.SV.W.0252.000000T0000Z-190823T2030Z/
Appomattox VA-
430 PM EDT Fri Aug 23 2019

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN APPOMATTOX 
COUNTY WILL EXPIRE AT 430 PM EDT...
    
The storms which prompted the warning have weakened below severe
limits, and have exited the warned area. Therefore, the warning will
be allowed to expire.  However heavy rain is still possible with
these thunderstorms.

Note, a Severe Thunderstorm Watch remains in effect until 1000 PM 
EDT for central and south 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 3734 7860 3725 7868 3722 7873 3723 7878
      3726 7888 3733 7888 3738 7880 3743 7868
      3742 7864 3739 7863 3740 7859
TIME...MOT...LOC 2029Z 306DEG 18KT 3738 7868 3729 7888 

$$

RAB

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 23, 12:48 AM EDT	Special Weather Statement	RNK	Smyth, Tazewell	57 min
Aug 23, 3:30 AM EDT	Special Weather Statement	RNK	Montgomery, Roanoke, City of Radford, City of Roanoke, City of Salem	60 min
Aug 23, 12:37 PM EDT	Special Weather Statement	RNK	Bath	38 min
Aug 23, 12:43 PM EDT	Special Weather Statement	RNK	Alleghany, City of Covington	62 min
Aug 23, 1:28 PM EDT	Special Weather Statement	RNK	Alleghany, Bath, Botetourt, Rockbridge, City of Buena Vista, City of Covington and 1 more	62 min
Aug 23, 2:28 PM EDT	Special Weather Statement	RNK	Amherst, Bedford, City of Buena Vista, City of Lynchburg	62 min
Aug 23, 2:49 PM EDT	Special Weather Statement	RNK	Tazewell	41 min
Aug 23, 2:55 PM EDT	Special Weather Statement	RNK	Buckingham	50 min
Aug 23, 4:29 PM EDT	Special Weather Statement	RNK	Campbell	61 min
Aug 23, 5:26 PM EDT	Special Weather Statement	RNK	Halifax, Henry, Pittsylvania, City of Danville, City of Martinsville	64 min
Aug 23, 6:08 PM EDT	Special Weather Statement	RNK	City of Danville	67 min
Aug 23, 6:21 PM EDT	Severe Thunderstorm Warning	RNK	Henry, Pittsylvania, City of Danville	54 min
Aug 23, 6:47 PM EDT	Severe Thunderstorm Warning	RNK	Halifax	43 min

Nearby

Severe Thunderstorm Warnings in Virginia, 2019 Every severe thunderstorm warning in 2019

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.