Alert archive / Virginia / Tornado Warnings in 2017

Tornado Warning 12, NWS Blacksburg, VA

May 24, 2017Henry County, Patrick County, Virginia

NWS Blacksburg, VA issued this tornado warning at May 24, 2017, 5:34 PM EDT for Henry County, Patrick County, Virginia. It was in force for 41 min. 2 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 24, 2017, 5:34 PM EDT (21:34 UTC)
Expired
May 24, 2017, 6:15 PM EDT
In force
41 min
Issued by
NWS Blacksburg, VA
Area
Storm-based polygon
Tornado
Radar indicated
Hail
1.0 in

Counties Henry County, VA, Patrick County, VA

The radar

The Roanoke radar (KFCX), 38 km from the middle of the area, began a volume at 21:33 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

TimeReportWhereRemark
May 24, 5:51 PM EDTTSTM WND DMG4 Wnw Fairy Stone State, VAONE TREE DOWN ON HEIDELBACH SCHOOL ROAD
May 24, 6:04 PM EDTTSTM WND DMG3 Nnw Sanville, VAONE TREE DOWN NEAR THE INTERSECTION OF SADDLERIDGE ROAD AND MICROFILM ROAD

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.

IssuedProductOfficeLasted
May 24, 3:46 PM EDTTornado WatchSPC6 hr

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 9.6 hours before the alert went out and 72 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-pSkew-T log-p diagram, Greensboro/Hi Pt, NC at 12:00Z on 2017-05-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 52 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Greensboro/Hi Pt, NC at 12:00Z on 2017-05-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 105 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
52 J/kg
Mixed-layer CIN
-47 J/kg
Mixed-layer LCL
553 m above ground
0-6 km bulk shear
50 kt
0-1 km storm-relative helicity
105 m²/s²
0-3 km storm-relative helicity
137 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

808 
WFUS51 KRNK 242134
TORRNK
VAC089-141-242215-
/O.NEW.KRNK.TO.W.0012.170524T2134Z-170524T2215Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service BLACKSBURG VA
534 PM EDT WED MAY 24 2017

The National Weather Service in BLACKSBURG has issued a

* Tornado Warning for...
  West central Henry County in south central Virginia...
  Eastern Patrick County in southwestern Virginia...

* Until 615 PM EDT
    
* At 533 PM EDT, a severe thunderstorm capable of producing a tornado
  was located near Collinstown, moving northeast 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. 

* Locations impacted include...
  Stuart...
  Bassett...
  Sanville...
  Fairy Stone State Park...
  and Critz.

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 3655 8031 3685 8016 3679 8004 3678 8003
      3678 8002 3676 7998 3654 8016
TIME...MOT...LOC 2133Z 205DEG 23KT 3654 8025 

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

$$

RS
3 follow-up statements
519 
WWUS51 KRNK 242149
SVSRNK

Severe Weather Statement
National Weather Service BLACKSBURG VA
549 PM EDT WED MAY 24 2017

VAC089-141-242215-
/O.CON.KRNK.TO.W.0012.000000T0000Z-170524T2215Z/
Henry VA-Patrick VA-
549 PM EDT WED MAY 24 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 615 PM EDT FOR 
WEST CENTRAL HENRY AND EASTERN PATRICK COUNTIES...
    
At 548 PM EDT, a severe thunderstorm capable of producing a tornado
was located over Critz, moving northeast 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. 

Locations impacted include...
Bassett...
Sanville...
Philpott Dam...
Patrick Springs...
and Fairy Stone State Park.

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.

Heavy rainfall may hide this tornado. Do not wait to see or hear the
tornado. TAKE COVER NOW!

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 3659 8024 3685 8016 3679 8004 3678 8003
      3678 8002 3676 7998 3656 8014
TIME...MOT...LOC 2148Z 213DEG 21KT 3661 8016 

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

$$

RS
280 
WWUS51 KRNK 242203
SVSRNK

Severe Weather Statement
National Weather Service BLACKSBURG VA
603 PM EDT WED MAY 24 2017

VAC089-141-242215-
/O.CON.KRNK.TO.W.0012.000000T0000Z-170524T2215Z/
Henry VA-Patrick VA-
603 PM EDT WED MAY 24 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 615 PM EDT FOR 
WEST CENTRAL HENRY AND EAST CENTRAL PATRICK COUNTIES...
    
At 603 PM EDT, a severe thunderstorm capable of producing a tornado
was located over Sanville, moving northeast at 30 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. 

Locations impacted include...
Bassett...
Sanville...
Philpott Dam...
and Fairy Stone State Park.

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.

Heavy rainfall may hide this tornado. Do not wait to see or hear the
tornado. TAKE COVER NOW!

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 3667 8015 3683 8011 3679 8004 3678 8003
      3678 8002 3676 7998 3664 8007
TIME...MOT...LOC 2203Z 214DEG 25KT 3671 8007 

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

$$

RS
200 
WWUS51 KRNK 242212
SVSRNK

Severe Weather Statement
National Weather Service BLACKSBURG VA
612 PM EDT WED MAY 24 2017

VAC089-141-242222-
/O.EXP.KRNK.TO.W.0012.000000T0000Z-170524T2215Z/
Henry VA-Patrick VA-
612 PM EDT WED MAY 24 2017

...THE TORNADO WARNING FOR 
WEST CENTRAL HENRY AND EAST CENTRAL PATRICK COUNTIES WILL EXPIRE AT
615 PM EDT...
                
The storm which prompted the warning has weakened and no longer 
appears capable of producing a tornado. Therefore the warning will 
be allowed to expire.

A tornado watch remains in effect until midnight EDT for north
central and northwestern North Carolina...and south central and
southwestern 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 3667 8015 3683 8011 3679 8004 3678 8003
      3678 8002 3676 7998 3664 8007
TIME...MOT...LOC 2212Z 205DEG 23KT 3675 8005 

$$

RS

The office that day

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

IssuedProductOfficeCountiesLasted
May 24, 4:27 AM EDTFlash Flood WatchRNKBland, Carroll, Craig, Floyd, Franklin, Giles and 17 more20 hr
May 24, 10:50 AM EDTRiver Flood WarningRNKCharlotte, Halifax4 days
May 24, 2:14 PM EDTSevere Thunderstorm WarningRNKSmyth, Tazewell46 min
May 24, 2:57 PM EDTSevere Thunderstorm WarningRNKBland, Smyth, Tazewell27 min
May 24, 4:07 PM EDTFlash Flood WarningRNKCarroll, Floyd, Patrick6 hr
May 24, 5:26 PM EDTAreal Flood AdvisoryRNKCarroll, Grayson, City of Galax4 hr
May 24, 6:11 PM EDTSevere Thunderstorm WarningRNKFranklin, Henry25 min
May 24, 6:14 PM EDTAreal Flood AdvisoryRNKFranklin, Henry, Patrick, City of Martinsville3 hr
May 24, 6:33 PM EDTAreal Flood AdvisoryRNKBland, Floyd, Giles, Montgomery, Pulaski, Wythe and 1 more3 hr
May 24, 6:44 PM EDTAreal Flood AdvisoryRNKGrayson4 hr
May 24, 6:49 PM EDTAreal Flood AdvisoryRNKCampbell, Charlotte, Halifax, Henry, Pittsylvania, City of Danville3 hr
May 24, 6:57 PM EDTAreal Flood AdvisoryRNKBedford, Botetourt, Franklin, Roanoke, City of Lynchburg, City of Roanoke and 1 more3 hr

Nearby

Tornado Warnings in Virginia, 2017Every tornado warning in 2017Tornadoes 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.