Alert archive / North Carolina / Tornado Warnings in 2017

Tornado Warning 16, NWS Blacksburg, VA

October 23, 20174 counties in North Carolina; Carroll County, Grayson County, Virginia

NWS Blacksburg, VA issued this tornado warning at Oct 23, 2017, 5:26 PM EDT for 4 counties in North Carolina; Carroll County, Grayson County, Virginia. It was in force for 34 min. 6 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: Oct 23, 2017, 5:26 PM EDT (21:26 UTC)
Expired: Oct 23, 2017, 6:00 PM EDT
In force: 34 min
Issued by: NWS Blacksburg, VA
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

Counties Alleghany County, NC, Ashe County, NC, Surry County, NC, Wilkes County, NC, Carroll County, VA, Grayson County, VA

The radar

The Roanoke radar (KFCX), 104 km from the middle of the area, began a volume at 21:29 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
Oct 23, 5:33 PM EDT	TSTM WND DMG	3 Ese Ennice, NC	THUNDERSTORM WINDS DAMAGED A BARN LOCATED ALONG BARRETT ROAD.
Oct 23, 5:35 PM EDT	TSTM WND DMG	3 S Ennice, NC	THUNDERSTORM WINDS BLEW DOWN A TREE ALONG SHAWTOWN ROAD.
Oct 23, 5:41 PM EDT	TSTM WND DMG	1 S Ennice, NC	THUNDERSTORM WINDS DAMAGED A MOBILE HOME ALONG LITTLE PRNE ROAD.
Oct 23, 5:41 PM EDT	TSTM WND DMG	2 Sw Ennice, NC	THUNDERSTORM WINDS UPROOTED AND SNAPPED SEVERAL TREES AND DAMAGED A BARN ALONG RECTOR ROAD.
Oct 23, 5:43 PM EDT	TSTM WND DMG	2 Sse Ennice, NC	STRONG THUNDERSTORM WINDS DOWNED SEVERAL LARGE TREES AND DESTROYED TWO BARNS AND DAMAGED ANOTHER ALONG GLADE VALLEY ROAD.
Oct 23, 5:45 PM EDT	TSTM WND DMG	1 Wsw Ennice, NC	THUNDERSTORM WINDS DOWNED TWO TREES ALONG JARVIS 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.

Issued	Product	Office	Lasted
Oct 23, 2:00 PM EDT	Tornado Watch	SPC	8 hr

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 9.4 hours before the alert went out and 114 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 597 m above ground
0-6 km bulk shear: 35 kt
0-1 km storm-relative helicity: 202 m²/s²
0-3 km storm-relative helicity: 259 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

583 
WFUS51 KRNK 232126
TORRNK
NCC005-009-171-193-VAC035-077-232200-
/O.NEW.KRNK.TO.W.0016.171023T2126Z-171023T2200Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service BLACKSBURG VA
526 PM EDT MON OCT 23 2017

The National Weather Service in BLACKSBURG has issued a

* Tornado Warning for...
  Alleghany County in northwestern North Carolina...
  Northwestern Surry County in northwestern North Carolina...
  Northeastern Wilkes County in northwestern North Carolina...
  Northeastern Ashe County in northwestern North Carolina...
  South central Carroll County in southwestern Virginia...
  Southeastern Grayson County in southwestern Virginia...

* Until 600 PM EDT
    
* At 526 PM EDT, a severe thunderstorm capable of producing a tornado
  was located over Dockery, moving north at 30 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. 

* Locations impacted include...
  North Wilkesboro...
  Sparta...
  Independence...
  Traphill...
  and Mouth Of Wilson.

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 3616 8106 3627 8136 3670 8135 3660 8077
TIME...MOT...LOC 2126Z 201DEG 24KT 3633 8110 

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

$$

KK

2 follow-up statements

704 
WWUS51 KRNK 232142
SVSRNK

Severe Weather Statement
National Weather Service BLACKSBURG VA
542 PM EDT MON OCT 23 2017

NCC005-009-171-193-VAC035-077-232200-
/O.CON.KRNK.TO.W.0016.000000T0000Z-171023T2200Z/
Alleghany NC-Surry NC-Wilkes NC-Ashe NC-Carroll VA-Grayson VA-
542 PM EDT MON OCT 23 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 600 PM EDT FOR 
ALLEGHANY...NORTHWESTERN SURRY...NORTHEASTERN WILKES AND NORTHEASTERN
ASHE COUNTIES IN NORTHWESTERN NORTH CAROLINA...SOUTH CENTRAL CARROLL
AND SOUTHEASTERN GRAYSON COUNTIES IN SOUTHWESTERN VIRGINIA...
    
At 542 PM EDT, a severe thunderstorm capable of producing a tornado
was located over Stone Mountain State Park, moving north 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...
Sparta...
Independence...
Traphill...
Mouth Of Wilson...
and Mc Grady.

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 3620 8103 3632 8136 3670 8135 3660 8077
TIME...MOT...LOC 2142Z 201DEG 24KT 3642 8106 

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

$$

KK

032 
WWUS51 KRNK 232157
SVSRNK

Severe Weather Statement
National Weather Service BLACKSBURG VA
557 PM EDT MON OCT 23 2017

NCC005-009-171-193-VAC035-077-232206-
/O.EXP.KRNK.TO.W.0016.000000T0000Z-171023T2200Z/
Alleghany NC-Surry NC-Wilkes NC-Ashe NC-Carroll VA-Grayson VA-
557 PM EDT MON OCT 23 2017

...THE TORNADO WARNING FOR 
ALLEGHANY...NORTHWESTERN SURRY...NORTHEASTERN WILKES AND NORTHEASTERN
ASHE COUNTIES IN NORTHWESTERN NORTH CAROLINA...SOUTH CENTRAL CARROLL
AND SOUTHEASTERN GRAYSON COUNTIES IN SOUTHWESTERN VIRGINIA WILL
EXPIRE AT 600 PM EDT...
        
The storm which prompted the warning has moved out of the area.
Therefore the warning will be allowed to expire.  However gusty winds
are still possible with this thunderstorm.

A tornado watch remains in effect until 900 PM EDT for north central
and northwestern North Carolina. A tornado watch also remains in
effect until 200 AM EDT for 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 3620 8103 3632 8136 3670 8135 3660 8077
TIME...MOT...LOC 2156Z 201DEG 24KT 3650 8102 

$$

KK

The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 23, 10:46 AM EDT	Flash Flood Watch	RNK	Alleghany, Ashe, Watauga	9 hr
Oct 23, 2:46 PM EDT	Flash Flood Warning	RNK	Alleghany, Ashe, Watauga	6 hr
Oct 23, 5:00 PM EDT	Tornado Warning	RNK	Ashe, Wilkes	30 min
Oct 23, 5:23 PM EDT	Severe Thunderstorm Warning	RNK	Surry, Wilkes, Yadkin	67 min
Oct 23, 5:47 PM EDT	Severe Thunderstorm Warning	RNK	Stokes, Surry, Yadkin	58 min
Oct 23, 5:55 PM EDT	Tornado Warning	RNK	Alleghany, Surry	35 min
Oct 23, 6:46 PM EDT	Severe Thunderstorm Warning	RNK	Rockingham, Stokes	59 min
Oct 23, 7:16 PM EDT	Tornado Warning	RNK	Caswell, Rockingham	29 min
Oct 23, 7:50 PM EDT	Special Weather Statement	RNK	Caswell	55 min
Oct 23, 3:07 PM EDT	Special Weather Statement	RNK	Bland, Carroll, Grayson, Pulaski, Smyth, Tazewell and 2 more	83 min
Oct 23, 4:27 PM EDT	Special Weather Statement	RNK	Craig, Giles, Montgomery, Pulaski, City of Radford	108 min
Oct 23, 4:40 PM EDT	Special Weather Statement	RNK	Bland, Carroll, Grayson, Pulaski, Smyth, Tazewell and 2 more	110 min
Oct 23, 5:06 PM EDT	Flash Flood Warning	RNK	Bland, Carroll, Grayson, Smyth, Tazewell, Wythe and 1 more	6 hr
Oct 23, 5:53 PM EDT	Flash Flood Warning	RNK	Carroll, Floyd, Patrick	6 hr
Oct 23, 6:16 PM EDT	Special Weather Statement	RNK	Alleghany, Craig, Giles, Montgomery, Pulaski, City of Covington and 1 more	89 min
Oct 23, 6:16 PM EDT	Severe Thunderstorm Warning	RNK	Bland, Carroll, Floyd, Giles, Montgomery, Pulaski and 2 more	59 min
Oct 23, 6:24 PM EDT	Special Weather Statement	RNK	Bath, Botetourt, Roanoke, Rockbridge, City of Buena Vista, City of Lexington and 2 more	111 min
Oct 23, 6:42 PM EDT	Severe Thunderstorm Warning	RNK	Craig, Giles, Montgomery, Pulaski	63 min
Oct 23, 6:58 PM EDT	Flash Flood Warning	RNK	Alleghany, Craig, Floyd, Giles, Montgomery, City of Covington	6 hr
Oct 23, 7:28 PM EDT	Severe Thunderstorm Warning	RNK	Alleghany, Bath, Botetourt, Craig, Roanoke, Rockbridge and 3 more	62 min
Oct 23, 7:40 PM EDT	Severe Thunderstorm Warning	RNK	Amherst, Bedford, Botetourt, Campbell, Franklin, Roanoke and 5 more	65 min

Nearby

Tornado Warnings in North Carolina, 2017 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.