Alert archive / Virginia / Tornado Warnings in 2017

Tornado Warning 6, NWS Blacksburg, VA

May 10, 2017Campbell County, Virginia

NWS Blacksburg, VA issued this tornado warning at May 10, 2017, 8:06 PM EDT for Campbell County, Virginia. It was in force for 39 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: May 10, 2017, 8:06 PM EDT (00:06 UTC)
Expired: May 10, 2017, 8:45 PM EDT
In force: 39 min
Issued by: NWS Blacksburg, VA
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

County Campbell County, VA

The radar

The Roanoke radar (KFCX), 113 km from the middle of the area, began a volume at 00:08 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 00:00Z, 0.1 hours before the alert went out and 42 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: 13 J/kg
Mixed-layer CIN: -92 J/kg
Mixed-layer LCL: 2016 m above ground
0-6 km bulk shear: 43 kt
0-1 km storm-relative helicity: 64 m²/s²
0-3 km storm-relative helicity: 72 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.4

Open this sounding in Storm Lab

The text

As transmitted.

881 
WFUS51 KRNK 110006
TORRNK
VAC031-110045-
/O.NEW.KRNK.TO.W.0006.170511T0006Z-170511T0045Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service BLACKSBURG VA
806 PM EDT WED MAY 10 2017

The National Weather Service in BLACKSBURG has issued a

* Tornado Warning for...
  Southeastern Campbell County in central Virginia...

* Until 845 PM EDT
    
* At 806 PM EDT, a severe thunderstorm capable of producing a tornado
  was located near Rustburg, moving south at 20 mph.

  HAZARD...Tornado. 

  SOURCE...Radar indicated rotation. 

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely. 

* This dangerous storm will be near...
  Spring Mills around 820 PM EDT. 
  Mike around 825 PM EDT. 
  Gladys around 830 PM EDT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

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 3733 7907 3731 7898 3714 7887 3710 7901
      3713 7918
TIME...MOT...LOC 0006Z 348DEG 17KT 3727 7904 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

16

3 follow-up statements

632 
WWUS51 KRNK 110018
SVSRNK

Severe Weather Statement
National Weather Service BLACKSBURG VA
818 PM EDT WED MAY 10 2017

VAC031-110045-
/O.CON.KRNK.TO.W.0006.000000T0000Z-170511T0045Z/
Campbell VA-
818 PM EDT WED MAY 10 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 845 PM EDT FOR 
SOUTHEASTERN CAMPBELL COUNTY...
    
At 817 PM EDT, a severe thunderstorm capable of producing a tornado
was located near Spring Mills, moving south at 20 mph.

HAZARD...Tornado and quarter size hail. 

SOURCE...Radar indicated rotation. 

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely. 

This tornadic thunderstorm will remain over mainly rural areas of 
southeastern Campbell County.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

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 3727 7906 3728 7896 3714 7887 3710 7901
      3712 7912
TIME...MOT...LOC 0017Z 340DEG 18KT 3721 7900 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

16

045 
WWUS51 KRNK 110030
SVSRNK

Severe Weather Statement
National Weather Service BLACKSBURG VA
830 PM EDT WED MAY 10 2017

VAC031-110045-
/O.CON.KRNK.TO.W.0006.000000T0000Z-170511T0045Z/
Campbell VA-
830 PM EDT WED MAY 10 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 845 PM EDT FOR 
SOUTHEASTERN CAMPBELL COUNTY...
    
At 829 PM EDT, a severe thunderstorm capable of producing a tornado
was located over Hat Creek, moving south at 25 mph.

HAZARD...Tornado and quarter size hail. 

SOURCE...Radar indicated rotation. 

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely. 

This tornadic thunderstorm will remain over mainly rural areas of 
southeastern Campbell County.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

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 3718 7901 3720 7893 3714 7887 3710 7901
TIME...MOT...LOC 0029Z 341DEG 21KT 3713 7896 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

16

055 
WWUS51 KRNK 110042
SVSRNK

Severe Weather Statement
National Weather Service BLACKSBURG VA
842 PM EDT WED MAY 10 2017

VAC031-110050-
/O.EXP.KRNK.TO.W.0006.000000T0000Z-170511T0045Z/
Campbell VA-
842 PM EDT WED MAY 10 2017

...THE TORNADO WARNING FOR 
SOUTHEASTERN CAMPBELL COUNTY WILL EXPIRE AT 845 PM EDT...
    
The Tornado Warning that was previously in effect has been reissued 
for Campbell County and is in effect until 900 PM EDT. Please refer 
to that bulletin for the latest severe weather information.

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.

Remember, a Tornado Warning still remains in effect for Charlotte, 
Campbell and Halifax Counties.

LAT...LON 3718 7901 3720 7893 3714 7887 3710 7901
TIME...MOT...LOC 0040Z 348DEG 17KT 3709 7895 

$$

16

The office that day

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

Issued	Product	Office	Counties	Lasted
May 10, 8:34 PM EDT	Tornado Warning	RNK	Campbell, Charlotte, Halifax	26 min
May 10, 8:45 PM EDT	Severe Thunderstorm Warning	RNK	Campbell, Charlotte, Halifax	60 min
May 10, 8:58 PM EDT	Tornado Warning	RNK	Halifax	32 min
May 10, 9:19 PM EDT	Severe Thunderstorm Warning	RNK	Charlotte, Halifax	41 min
May 10, 9:37 PM EDT	Special Weather Statement	RNK	Appomattox, City of Lynchburg	53 min
May 10, 9:45 PM EDT	Severe Thunderstorm Warning	RNK	Amherst, Appomattox, Campbell, Charlotte, City of Lynchburg	60 min
May 10, 10:43 PM EDT	Special Weather Statement	RNK	Charlotte	62 min
May 10, 11:20 PM EDT	Severe Thunderstorm Warning	RNK	Charlotte	16 min
May 11, 6:19 AM EDT	Flood Watch	RNK	Alleghany, Amherst, Bath, Bedford, Bland, Botetourt and 23 more	30 hr
May 11, 6:19 AM EDT	Flash Flood Watch	RNK	Alleghany, Bath, Bland, Botetourt, Craig, Giles and 5 more	16 hr
May 11, 6:08 PM EDT	Severe Thunderstorm Warning	RNK	Charlotte, Halifax	67 min
May 11, 6:38 PM EDT	Special Weather Statement	RNK	Henry, City of Martinsville	67 min
May 11, 6:49 PM EDT	Special Weather Statement	RNK	Bedford	56 min
May 11, 7:15 PM EDT	Special Weather Statement	RNK	Patrick	60 min
May 11, 7:18 PM EDT	Severe Thunderstorm Warning	RNK	Patrick	57 min
May 11, 7:28 PM EDT	Severe Thunderstorm Warning	RNK	Henry, City of Martinsville	62 min

Nearby

Tornado Warnings in Virginia, 2017 Every tornado warning in 2017 Tornadoes in 2017

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.