Alert archive / North Carolina / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 71, NWS Blacksburg, VA

July 9, 2021Stokes County, Surry County, Yadkin County, North Carolina

NWS Blacksburg, VA issued this severe thunderstorm warning at Jul 9, 2021, 5:40 PM EDT for Stokes County, Surry County, Yadkin County, North Carolina. It was in force for 50 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: Jul 9, 2021, 5:40 PM EDT (21:40 UTC)
Expired: Jul 9, 2021, 6:30 PM EDT
In force: 50 min
Issued by: NWS Blacksburg, VA
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Stokes County, NC, Surry County, NC, Yadkin County, NC

The radar

The Roanoke radar (KFCX), 93 km from the middle of the area, began a volume at 21:42 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, 9.7 hours before the alert went out and 51 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: 127 J/kg
Mixed-layer CIN: -97 J/kg
Mixed-layer LCL: 1287 m above ground
0-6 km bulk shear: 12 kt
0-1 km storm-relative helicity: -22 m²/s²
0-3 km storm-relative helicity: 0 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

308 
WUUS51 KRNK 092140
SVRRNK
NCC169-171-197-092230-
/O.NEW.KRNK.SV.W.0071.210709T2140Z-210709T2230Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service BLACKSBURG VA
540 PM EDT Fri Jul 9 2021

The National Weather Service in BLACKSBURG has issued a

* Severe Thunderstorm Warning for...
  Southeastern Surry County in northwestern North Carolina...
  Stokes County in north central North Carolina...
  Yadkin County in northwestern North Carolina...

* Until 630 PM EDT.

* At 540 PM EDT, severe thunderstorms were located along a line
  extending from Danbury to near Yadkinville, moving east at 20 mph.

  HAZARD...60 mph wind gusts and quarter size hail.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Yadkinville...
  Walnut Cove...
  Boonville...
  East Bend...
  Danbury...
  King...
  and Nebo.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Locally heavy rain will quickly reduce visibility and result in
ponding of water on roadways, standing water in low lying areas, and
minor flooding of creeks, streams, and areas of poor drainage.
Drivers are urged to slow down and use extra caution to avoid
hydroplaning.

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 3617 8083 3649 8021 3638 8003 3626 8004
      3626 8045 3624 8045 3622 8043 3621 8045
      3614 8044 3610 8051 3608 8052 3605 8050
      3605 8058
TIME...MOT...LOC 2140Z 278DEG 17KT 3642 8019 3616 8070 

HAIL...1.00IN
WIND...60MPH
 
$$

RAB

2 follow-up statements

301 
WWUS51 KRNK 092157
SVSRNK

Severe Weather Statement
National Weather Service BLACKSBURG VA
557 PM EDT Fri Jul 9 2021

NCC171-197-092205-
/O.CAN.KRNK.SV.W.0071.000000T0000Z-210709T2230Z/
Surry NC-Yadkin NC-
557 PM EDT Fri Jul 9 2021

...THE SEVERE THUNDERSTORM WARNING FOR 
SOUTHEASTERN SURRY AND YADKIN COUNTIES IS CANCELLED...

The storms which prompted the warning have moved out of the warned 
area. Therefore, the warning has been cancelled.

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 3626 8045 3635 8045 3649 8021 3638 8003
      3626 8004
TIME...MOT...LOC 2155Z 278DEG 17KT 3641 8011 3615 8062 

$$

NCC169-092230-
/O.CON.KRNK.SV.W.0071.000000T0000Z-210709T2230Z/
Stokes NC-
557 PM EDT Fri Jul 9 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 630 PM EDT
FOR STOKES COUNTY...

At 555 PM EDT, severe thunderstorms were located along a line
extending from Dillard to near Shacktown, moving east at 20 mph.

HAZARD...60 mph wind gusts and quarter size hail.

SOURCE...Radar indicated.

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

Locations impacted include...
Walnut Cove...
Danbury...
King...
Pine Hall...
Pinnacle...
Hanging Rock State Park...
and Capella.

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.

Locally heavy rain will quickly reduce visibility and result in
ponding of water on roadways, standing water in low lying areas, and
minor flooding of creeks, streams, and areas of poor drainage.
Drivers are urged to slow down and use extra caution to avoid
hydroplaning.

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 3626 8045 3635 8045 3649 8021 3638 8003
      3626 8004
TIME...MOT...LOC 2155Z 278DEG 17KT 3641 8011 3615 8062 

HAIL...1.00IN
WIND...60MPH
 
$$

RAB

619 
WWUS51 KRNK 092222
SVSRNK

Severe Weather Statement
National Weather Service BLACKSBURG VA
622 PM EDT Fri Jul 9 2021

NCC169-092230-
/O.CON.KRNK.SV.W.0071.000000T0000Z-210709T2230Z/
Stokes NC-
622 PM EDT Fri Jul 9 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 630 PM EDT
FOR
SOUTHEASTERN STOKES COUNTY...

At 622 PM EDT, severe thunderstorms were located along a line
extending from Pine Hall to near Germanton, moving east at 20 mph.

HAZARD...60 mph wind gusts and quarter size hail.

SOURCE...Radar indicated.

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

Locations impacted include...
Walnut Cove...
Pine Hall...
Meadows...
Germanton...
and Belews Lake.

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.

Locally heavy rain will quickly reduce visibility and result in
ponding of water on roadways, standing water in low lying areas, and
minor flooding of creeks, streams, and areas of poor drainage.
Drivers are urged to slow down and use extra caution to avoid
hydroplaning.

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 3627 8031 3633 8031 3639 8017 3638 8003
      3626 8004
TIME...MOT...LOC 2222Z 275DEG 18KT 3634 8006 3623 8026 

HAIL...1.00IN
WIND...60MPH
 
$$

RAB

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 9, 12:50 PM EDT	Special Weather Statement	RNK	Surry	25 min
Jul 9, 1:40 PM EDT	Special Weather Statement	RNK	Stokes	35 min
Jul 9, 3:41 PM EDT	Special Weather Statement	RNK	Person	34 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.