Alert archive / North Carolina / Tornado Warnings in 2021

Tornado Warning 19, NWS Blacksburg, VA

August 18, 2021Surry County, North Carolina

NWS Blacksburg, VA issued this tornado warning at Aug 18, 2021, 12:08 AM EDT for Surry County, North Carolina. It was in force for 37 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: Aug 18, 2021, 12:08 AM EDT (04:08 UTC)
Expired: Aug 18, 2021, 12:45 AM EDT
In force: 37 min
Issued by: NWS Blacksburg, VA
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.0 in

County Surry County, NC

The radar

The Roanoke radar (KFCX), 87 km from the middle of the area, began a volume at 04:10 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 18, 12:35 AM EDT	TSTM WND DMG	2 W White Plains, NC	TREE DOWN.
Aug 18, 12:53 AM EDT	TSTM WND DMG	1 W Toast, NC	TREE DOWN.

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 17, 6:28 PM EDT	Tornado Watch	SPC	10 hr

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 00:00Z, 4.1 hours before the alert went out and 81 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: 349 J/kg
Mixed-layer CIN: -15 J/kg
Mixed-layer LCL: 641 m above ground
0-6 km bulk shear: 31 kt
0-1 km storm-relative helicity: 225 m²/s²
0-3 km storm-relative helicity: 278 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 2.5

Open this sounding in Storm Lab

The text

As transmitted.

480 
WFUS51 KRNK 180408
TORRNK
NCC171-180445-
/O.NEW.KRNK.TO.W.0019.210818T0408Z-210818T0445Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service BLACKSBURG VA
1208 AM EDT Wed Aug 18 2021

The National Weather Service in BLACKSBURG has issued a

* Tornado Warning for...
  Surry County in northwestern North Carolina...

* Until 1245 AM EDT.
    
* At 1207 AM EDT, a severe thunderstorm capable of producing a
  tornado was located over Burch, or near Elkin, moving northeast at
  35 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...
  Mount Airy...
  Elkin...
  Fairview...
  Flat Rock...
  Dobson...
  Bottom...
  and Pine Ridge.

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 3625 8083 3656 8077 3654 8044 3626 8075
      3627 8078 3626 8078
TIME...MOT...LOC 0407Z 203DEG 32KT 3628 8078 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...0.00 IN

$$

WP

4 follow-up statements

004 
WWUS51 KRNK 180418
SVSRNK

Severe Weather Statement
National Weather Service BLACKSBURG VA
1218 AM EDT Wed Aug 18 2021

NCC171-180445-
/O.CON.KRNK.TO.W.0019.000000T0000Z-210818T0445Z/
Surry NC-
1218 AM EDT Wed Aug 18 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1245 AM EDT FOR 
EASTERN SURRY COUNTY...
    
At 1218 AM EDT, a severe thunderstorm capable of producing a tornado
was located over Fairview, moving northeast at 35 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...
Mount Airy...
Fairview...
Flat Rock...
Dobson...
Bottom...
Pine Ridge...
and Toast.

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.

Tornadoes are extremely difficult to see and confirm at night. 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 3630 8079 3656 8077 3654 8044 3629 8074
      3629 8077
TIME...MOT...LOC 0418Z 202DEG 29KT 3636 8074 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...0.00 IN

$$

WP

498 
WWUS51 KRNK 180428
SVSRNK

Severe Weather Statement
National Weather Service BLACKSBURG VA
1228 AM EDT Wed Aug 18 2021

NCC171-180445-
/O.CON.KRNK.TO.W.0019.000000T0000Z-210818T0445Z/
Surry NC-
1228 AM EDT Wed Aug 18 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1245 AM EDT FOR 
NORTHEASTERN SURRY COUNTY...
    
At 1228 AM EDT, a severe thunderstorm capable of producing a tornado
was located over Dobson, moving northeast at 25 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...
Mount Airy...
Flat Rock...
Dobson...
Pine Ridge...
White Plains...
and Toast.

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.

Tornadoes are extremely difficult to see and confirm at night. 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 3635 8075 3655 8076 3654 8048 3635 8072
TIME...MOT...LOC 0428Z 209DEG 22KT 3641 8070 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...0.00 IN

$$

WP

996 
WWUS51 KRNK 180439
SVSRNK

Severe Weather Statement
National Weather Service BLACKSBURG VA
1239 AM EDT Wed Aug 18 2021

NCC171-180445-
/O.CON.KRNK.TO.W.0019.000000T0000Z-210818T0445Z/
Surry NC-
1239 AM EDT Wed Aug 18 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1245 AM EDT FOR 
NORTHEASTERN SURRY COUNTY...
    
At 1239 AM EDT, a severe thunderstorm capable of producing a tornado
was located over Toast, or near Mount Airy, moving northeast at 25
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...
Mount Airy...
Flat Rock...
White Plains...
and Toast.

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.

Tornadoes are extremely difficult to see and confirm at night. 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 3644 8071 3654 8069 3654 8048 3644 8064
TIME...MOT...LOC 0439Z 205DEG 23KT 3648 8066 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...0.00 IN

$$

WP

012 
WWUS51 KRNK 180443
SVSRNK

Severe Weather Statement
National Weather Service BLACKSBURG VA
1243 AM EDT Wed Aug 18 2021

NCC171-180452-
/O.EXP.KRNK.TO.W.0019.000000T0000Z-210818T0445Z/
Surry NC-
1243 AM EDT Wed Aug 18 2021

...THE TORNADO WARNING FOR 
NORTHEASTERN SURRY COUNTY WILL EXPIRE AT 1245 AM EDT...
                
The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore, the warning will be allowed to expire.  However gusty
winds are still possible with this thunderstorm.

A Tornado Watch remains in effect until 200 AM EDT for north central
and northwestern North Carolina...and southwestern Virginia.

LAT...LON 3644 8071 3654 8069 3654 8048 3644 8064
TIME...MOT...LOC 0442Z 203DEG 32KT 3650 8065 

$$

WP

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 17, 8:26 PM EDT	Special Weather Statement	RNK	Alleghany, Ashe, Wilkes	49 min
Aug 17, 8:50 PM EDT	Special Weather Statement	RNK	Wilkes	25 min
Aug 17, 9:03 PM EDT	Special Weather Statement	RNK	Yadkin	27 min
Aug 17, 9:57 PM EDT	Flash Flood Warning	RNK	Ashe, Wilkes	5 hr
Aug 17, 10:13 PM EDT	Special Weather Statement	RNK	Wilkes	32 min
Aug 17, 10:43 PM EDT	Areal Flood Advisory	RNK	Alleghany, Surry, Wilkes, Yadkin	7 hr
Aug 17, 10:47 PM EDT	Tornado Warning	RNK	Surry, Wilkes, Yadkin	28 min
Aug 17, 11:15 PM EDT	Special Weather Statement	RNK	Surry, Yadkin	30 min
Aug 17, 11:49 PM EDT	Special Weather Statement	RNK	Yadkin	26 min
Aug 18, 12:24 AM EDT	Tornado Warning	RNK	Surry	21 min
Aug 18, 1:01 AM EDT	Tornado Warning	RNK	Surry	29 min
Aug 18, 2:10 AM EDT	Flash Flood Warning	RNK	Alleghany, Surry	5 hr
Aug 18, 2:54 AM EDT	Areal Flood Warning	RNK	Watauga	6 hr
Aug 18, 3:08 AM EDT	Areal Flood Warning	RNK	Ashe, Wilkes	6 hr

Nearby

Tornado Warnings in North Carolina, 2021 Every tornado warning in 2021 Tornadoes in 2021

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.