Alert archive / Virginia / Tornado Warnings in 2021

Tornado Warning 21, NWS Blacksburg, VA

August 18, 2021Surry County, North Carolina; Carroll County, Patrick County, Virginia

NWS Blacksburg, VA issued this tornado warning at Aug 18, 2021, 1:01 AM EDT for Surry County, North Carolina; Carroll County, Patrick County, Virginia. It was in force for 29 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: Aug 18, 2021, 1:01 AM EDT (05:01 UTC)
Expired: Aug 18, 2021, 1:30 AM EDT
In force: 29 min
Issued by: NWS Blacksburg, VA
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.0 in

Counties Surry County, NC, Carroll County, VA, Patrick County, VA

The radar

The Roanoke radar (KFCX), 56 km from the middle of the area, began a volume at 05:03 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 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, 5.0 hours before the alert went out and 83 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.

130 
WFUS51 KRNK 180501
TORRNK
NCC171-VAC035-141-180530-
/O.NEW.KRNK.TO.W.0021.210818T0501Z-210818T0530Z/

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

The National Weather Service in BLACKSBURG has issued a

* Tornado Warning for...
  Northeastern Surry County in northwestern North Carolina...
  Southeastern Carroll County in southwestern Virginia...
  Southwestern Patrick County in southwestern Virginia...

* Until 130 AM EDT.
    
* At 101 AM EDT, a severe thunderstorm capable of producing a tornado
  was located over Mount Airy, moving north at 40 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...
  Ararat...
  Cana...
  Laurel Fork...
  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.

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 3647 8065 3681 8062 3671 8046 3646 8056
TIME...MOT...LOC 0501Z 196DEG 34KT 3650 8060 

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

$$

WP

3 follow-up statements

191 
WWUS51 KRNK 180513
SVSRNK

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

NCC171-180522-
/O.CAN.KRNK.TO.W.0021.000000T0000Z-210818T0530Z/
Surry NC-
113 AM EDT Wed Aug 18 2021

...THE TORNADO WARNING FOR 
NORTHEASTERN SURRY COUNTY IS CANCELLED...
    
The tornadic thunderstorm which prompted the warning has moved out 
of the warned area.  Therefore, the warning has been cancelled.

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

LAT...LON 3656 8061 3681 8062 3671 8046 3656 8052
TIME...MOT...LOC 0512Z 197DEG 28KT 3659 8057 

$$

VAC035-141-180530-
/O.CON.KRNK.TO.W.0021.000000T0000Z-210818T0530Z/
Carroll VA-Patrick VA-
113 AM EDT Wed Aug 18 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 130 AM EDT FOR 
SOUTHEASTERN CARROLL AND SOUTHWESTERN PATRICK COUNTIES...
    
At 112 AM EDT, a severe thunderstorm capable of producing a tornado
was located over Ararat, moving north 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...
Ararat...
and Laurel Fork.

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 3656 8061 3681 8062 3671 8046 3656 8052
TIME...MOT...LOC 0512Z 197DEG 28KT 3659 8057 

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

$$

WP

052 
WWUS51 KRNK 180521
SVSRNK

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

VAC035-141-180530-
/O.CON.KRNK.TO.W.0021.000000T0000Z-210818T0530Z/
Carroll VA-Patrick VA-
121 AM EDT Wed Aug 18 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 130 AM EDT FOR 
EAST CENTRAL CARROLL AND SOUTHWESTERN PATRICK COUNTIES...
    
At 120 AM EDT, a severe thunderstorm capable of producing a tornado
was located near Ararat, 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...
Ararat...
and Laurel Fork.

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 3661 8057 3677 8057 3671 8046 3660 8051
TIME...MOT...LOC 0520Z 203DEG 31KT 3666 8053 

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

$$

WP

988 
WWUS51 KRNK 180526
SVSRNK

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

VAC035-141-180536-
/O.EXP.KRNK.TO.W.0021.000000T0000Z-210818T0530Z/
Carroll VA-Patrick VA-
126 AM EDT Wed Aug 18 2021

...THE TORNADO WARNING FOR 
EAST CENTRAL CARROLL AND SOUTHWESTERN PATRICK COUNTIES WILL EXPIRE AT
130 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 and west central
Virginia.

LAT...LON 3661 8057 3677 8057 3671 8046 3660 8051
TIME...MOT...LOC 0526Z 196DEG 34KT 3671 8051 

$$

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, 12:08 AM EDT	Tornado Warning	RNK	Surry	37 min
Aug 18, 12:24 AM EDT	Tornado Warning	RNK	Surry	21 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
Aug 17, 10:13 PM EDT	Areal Flood Advisory	RNK	Smyth, Tazewell	6 hr
Aug 17, 11:26 PM EDT	Areal Flood Advisory	RNK	Bland, Wythe	5 hr
Aug 17, 11:38 PM EDT	Special Weather Statement	RNK	City of Galax	37 min
Aug 18, 12:15 AM EDT	Areal Flood Advisory	RNK	Floyd, Franklin, Giles, Henry, Montgomery, Patrick and 6 more	6 hr
Aug 18, 12:22 AM EDT	Special Weather Statement	RNK	Carroll	23 min
Aug 18, 12:48 AM EDT	Special Weather Statement	RNK	Carroll	27 min
Aug 18, 1:38 AM EDT	Special Weather Statement	RNK	Giles	37 min
Aug 18, 1:59 AM EDT	Areal Flood Advisory	RNK	Craig	3 hr
Aug 18, 2:02 AM EDT	Special Weather Statement	RNK	Montgomery	28 min
Aug 18, 2:23 AM EDT	Special Weather Statement	RNK	Patrick	37 min
Aug 18, 2:35 AM EDT	Special Weather Statement	RNK	Craig	25 min
Aug 18, 2:44 AM EDT	Special Weather Statement	RNK	Roanoke, City of Salem	31 min
Aug 18, 2:51 AM EDT	Special Weather Statement	RNK	Henry	24 min
Aug 18, 3:18 AM EDT	Special Weather Statement	RNK	Franklin	27 min

Nearby

Tornado Warnings in Virginia, 2021 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.