Alert archive / North Carolina / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 178, NWS Blacksburg, VA

August 14, 2021Surry County, Wilkes County, North Carolina

NWS Blacksburg, VA issued this severe thunderstorm warning at Aug 14, 2021, 2:52 PM EDT for Surry County, Wilkes County, North Carolina. It was in force for 38 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 14, 2021, 2:52 PM EDT (18:52 UTC)
Expired: Aug 14, 2021, 3:30 PM EDT
In force: 38 min
Issued by: NWS Blacksburg, VA
Area: Storm-based polygon
Hail: 1.25 in
Wind: 60.0 mph

Counties Surry County, NC, Wilkes County, NC

The radar

The Roanoke radar (KFCX), 95 km from the middle of the area, began a volume at 18:52 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 nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 6.9 hours before the alert went out and 92 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: 1624 J/kg
Mixed-layer CIN: -77 J/kg
Mixed-layer LCL: 954 m above ground
0-6 km bulk shear: 8 kt
0-1 km storm-relative helicity: 2 m²/s²
0-3 km storm-relative helicity: 30 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

612 
WUUS51 KRNK 141852
SVRRNK
NCC171-193-141930-
/O.NEW.KRNK.SV.W.0178.210814T1852Z-210814T1930Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service BLACKSBURG VA
252 PM EDT Sat Aug 14 2021

The National Weather Service in BLACKSBURG has issued a

* Severe Thunderstorm Warning for...
  Southwestern Surry County in northwestern North Carolina...
  Northeastern Wilkes County in northwestern North Carolina...

* Until 330 PM EDT.

* At 251 PM EDT, a severe thunderstorm was located over State Road,
  or near Mountain Park, moving southeast at 10 mph.

  HAZARD...60 mph wind gusts and half dollar size hail.

  SOURCE...Radar indicated.

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees.

* Locations impacted include...
  Elkin...
  Fairview...
  Dobson...
  Mountain Park...
  State Road...
  Benham...
  and Burch.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Prepare immediately for large hail and damaging winds. For your
safety, move to an interior room on the lowest floor of a sturdy
building. Stay away from windows.

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 3633 8104 3637 8100 3638 8098 3640 8097
      3646 8091 3639 8065 3627 8076 3627 8078
      3626 8078 3625 8079 3625 8082 3624 8085
TIME...MOT...LOC 1851Z 304DEG 10KT 3633 8082 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.25 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

DS

2 follow-up statements

100 
WWUS51 KRNK 141915 RRA
SVSRNK

Severe Weather Statement
National Weather Service BLACKSBURG VA
315 PM EDT Sat Aug 14 2021

NCC171-193-141930-
/O.CON.KRNK.SV.W.0178.000000T0000Z-210814T1930Z/
Surry NC-Wilkes NC-
315 PM EDT Sat Aug 14 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 330 PM EDT
FOR SOUTHWESTERN SURRY AND NORTHEASTERN WILKES COUNTIES...

At 315 PM EDT, a severe thunderstorm was located over Burch, or near
Fairview, moving southeast at 10 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

Locations impacted include...
Elkin...
Fairview...
Dobson...
Mountain Park...
State Road...
Benham...
and Burch.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Prepare immediately for DAMAGING WINDS. For your safety, move to an
interior room on the lowest floor of a sturdy building. Stay away
from windows.

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 3633 8104 3637 8100 3638 8098 3640 8097
      3646 8091 3639 8065 3627 8076 3627 8078
      3626 8078 3625 8079 3625 8082 3624 8085
TIME...MOT...LOC 1915Z 304DEG 10KT 3629 8075 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

DS

800 
WWUS51 KRNK 141930
SVSRNK

Severe Weather Statement
National Weather Service BLACKSBURG VA
330 PM EDT Sat Aug 14 2021

NCC171-193-141939-
/O.EXP.KRNK.SV.W.0178.000000T0000Z-210814T1930Z/
Surry NC-Wilkes NC-
330 PM EDT Sat Aug 14 2021

...THE SEVERE THUNDERSTORM WARNING FOR 
SOUTHWESTERN SURRY AND NORTHEASTERN WILKES COUNTIES WILL EXPIRE AT
330 PM EDT...
        
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning will
be allowed to expire.  However small hail and gusty winds are still
possible with this thunderstorm.

LAT...LON 3633 8104 3637 8100 3638 8098 3640 8097
      3646 8091 3639 8065 3627 8076 3627 8078
      3626 8078 3625 8079 3625 8082 3624 8085
TIME...MOT...LOC 1929Z 304DEG 10KT 3627 8071 

$$

DS

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 13, 9:12 PM EDT	Special Weather Statement	RNK	Caswell	33 min
Aug 13, 9:46 PM EDT	Special Weather Statement	RNK	Caswell	44 min
Aug 13, 11:43 PM EDT	Special Weather Statement	RNK	Rockingham	32 min
Aug 14, 12:13 AM EDT	Special Weather Statement	RNK	Rockingham	32 min
Aug 14, 3:13 PM EDT	Areal Flood Advisory	RNK	Surry, Wilkes	3 hr
Aug 14, 3:32 PM EDT	Special Weather Statement	RNK	Surry	28 min
Aug 14, 4:14 PM EDT	Special Weather Statement	RNK	Stokes	31 min
Aug 14, 4:46 PM EDT	Areal Flood Advisory	RNK	Stokes	2 hr
Aug 14, 5:08 PM EDT	Special Weather Statement	RNK	Stokes	37 min
Aug 14, 5:12 PM EDT	Special Weather Statement	RNK	Caswell	33 min
Aug 14, 5:14 PM EDT	Special Weather Statement	RNK	Rockingham	31 min
Aug 14, 5:22 PM EDT	Special Weather Statement	RNK	Alleghany	23 min
Aug 14, 5:49 PM EDT	Special Weather Statement	RNK	Rockingham	26 min
Aug 14, 5:53 PM EDT	Areal Flood Advisory	RNK	Rockingham, Stokes	3 hr
Aug 14, 6:17 PM EDT	Special Weather Statement	RNK	Rockingham	28 min

Nearby

Severe Thunderstorm Warnings in North Carolina, 2021 Every severe thunderstorm warning 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.