Alert archive / North Carolina / Tornado Warnings in 2017

Tornado Warning 15, NWS Blacksburg, VA

October 23, 2017Ashe County, Wilkes County, North Carolina

NWS Blacksburg, VA issued this tornado warning at Oct 23, 2017, 5:00 PM EDT for Ashe County, Wilkes County, North Carolina. It was in force for 30 min. 8 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, 5:00 PM EDT (21:00 UTC)
Expired: Oct 23, 2017, 5:30 PM EDT
In force: 30 min
Issued by: NWS Blacksburg, VA
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 1.0 in

Counties Ashe County, NC, Wilkes County, NC

The radar

The Roanoke radar (KFCX), 133 km from the middle of the area, began a volume at 20:59 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
Oct 23, 5:00 PM EDT	TSTM WND DMG	4 Ene Boomer, NC	THUNDERSTORM WINDS DOWNED A TREE ON A CAR WITHIN THE COMMUNITY OF MORAVIAN FALLS.
Oct 23, 5:11 PM EDT	TORNADO	Wilkesboro, NC	A NWS STORM SURVEY TEAM HAS CONFIRMED AN EF1 TORNADO TOUCHED DOWN IN WILKESBORO NEAR THE INTERSECTION OF EAST MAIN STREET AND SALEM STREET AT AROUND 511 PM EDT...REMAINING INTERMITTEDLY ON THE GROUND FOR APPROXIMATELY 8 MILES BEFORE LIFTING NEAR YELLOW BANKS R
Oct 23, 5:15 PM EDT	TSTM WND DMG	2 Ssw North Wilkesboro, NC	A TREE WAS BLOWN DOWN ONTO A POWERLINE NEAR THE COMMUNITY OF WILKESBORO.
Oct 23, 5:15 PM EDT	TSTM WND DMG	6 Se Wilbar, NC	A TREE WAS BLOWN DOWN ALONG OLD HIGHWAY 60.
Oct 23, 5:15 PM EDT	TSTM WND DMG	Hays, NC	POSSIBLE TORNADO. TREE DOWN ON A HOUSE ON GLENN DANCY ROAD. OTHER TREES AND POWERLINES DOWN NEARBY.
Oct 23, 5:17 PM EDT	TSTM WND DMG	3 E Hays, NC	THUNDERSTORM WINDS DOWNED TWO LARGE TREES AND A POWERPOLE ALONG LITTLE MOUNTAIN CHURCH ROAD.
Oct 23, 5:17 PM EDT	TSTM WND DMG	North Wilkesboro, NC	SEVERAL LARGE LIMBS DOWN.
Oct 23, 5:24 PM EDT	TSTM WND DMG	Wilkesboro, NC	SIGNIFICANT TREE DAMAGE AND SOME STRUCTURAL DAMAGE TO A HOME.

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, 9.0 hours before the alert went out and 126 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.

549 
WFUS51 KRNK 232100
TORRNK
NCC009-193-232130-
/O.NEW.KRNK.TO.W.0015.171023T2100Z-171023T2130Z/

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

The National Weather Service in BLACKSBURG has issued a

* Tornado Warning for...
  Wilkes County in northwestern North Carolina...
  Southeastern Ashe County in northwestern North Carolina...

* Until 530 PM EDT
    
* At 500 PM EDT, a severe thunderstorm capable of producing a tornado
  was located near Elkville, moving north at 35 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...
  North Wilkesboro...
  Wilkesboro...
  Jefferson...
  Traphill...
  and Boomer.

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 3602 8135 3604 8140 3605 8139 3607 8141
      3608 8143 3607 8144 3609 8146 3644 8147
      3641 8126 3639 8124 3636 8125 3640 8119
      3636 8092 3603 8115 3603 8117 3604 8120
      3603 8127 3600 8132
TIME...MOT...LOC 2100Z 190DEG 30KT 3599 8136 

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

$$

KK

2 follow-up statements

434 
WWUS51 KRNK 232119
SVSRNK

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

NCC009-193-232130-
/O.CON.KRNK.TO.W.0015.000000T0000Z-171023T2130Z/
Wilkes NC-Ashe NC-
519 PM EDT MON OCT 23 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 530 PM EDT FOR 
WILKES AND SOUTHEASTERN ASHE COUNTIES...
    
At 519 PM EDT, a severe thunderstorm capable of producing a tornado
was located over Buck, moving northeast at 40 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...
North Wilkesboro...
Wilkesboro...
Jefferson...
Traphill...
and Boomer.

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 3602 8135 3604 8140 3605 8139 3607 8141
      3608 8143 3607 8144 3609 8146 3644 8147
      3641 8126 3639 8124 3636 8125 3640 8119
      3636 8092 3603 8115 3603 8117 3604 8120
      3603 8127 3600 8132
TIME...MOT...LOC 2119Z 205DEG 36KT 3617 8123 

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

$$

KK

824 
WWUS51 KRNK 232130
SVSRNK

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

NCC009-193-232139-
/O.EXP.KRNK.TO.W.0015.000000T0000Z-171023T2130Z/
Wilkes NC-Ashe NC-
530 PM EDT MON OCT 23 2017

...THE TORNADO WARNING FOR 
WILKES AND SOUTHEASTERN ASHE COUNTIES WILL EXPIRE AT 530 PM EDT...
        
The storm which prompted the warning has moved out of the area.
Therefore the warning will be allowed to expire. This storm has 
moved north and portions of Wilkes county are under tornado warning 
16. 

A tornado watch remains in effect until 900 PM EDT for northwestern
North Carolina.

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 3602 8135 3604 8140 3605 8139 3607 8141
      3608 8143 3607 8144 3609 8146 3644 8147
      3641 8126 3639 8124 3636 8125 3640 8119
      3636 8092 3603 8115 3603 8117 3604 8120
      3603 8127 3600 8132
TIME...MOT...LOC 2129Z 190DEG 30KT 3624 8121 

$$

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, 5:23 PM EDT	Severe Thunderstorm Warning	RNK	Surry, Wilkes, Yadkin	67 min
Oct 23, 5:26 PM EDT	Tornado Warning	RNK	Alleghany, Ashe, Surry, Wilkes	34 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

Nearby

Tornado Warnings in North Carolina, 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.