Alert archive / North Carolina / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 206, NWS Blacksburg, VA

September 8, 2021Surry County, Wilkes County, North Carolina

NWS Blacksburg, VA issued this severe thunderstorm warning at Sep 8, 2021, 2:15 PM EDT for Surry County, Wilkes County, North Carolina. 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
Sep 8, 2021, 2:15 PM EDT (18:15 UTC)
Expired
Sep 8, 2021, 2:44 PM EDT
In force
29 min
Issued by
NWS Blacksburg, VA
Area
Storm-based polygon
Tornado
Possible
Hail
1.0 in
Wind
60.0 mph

Counties Surry County, NC, Wilkes County, NC

The radar

The Roanoke radar (KFCX), 100 km from the middle of the area, began a volume at 18:14 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, 6.3 hours before the alert went out and 97 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-pSkew-T log-p diagram, Greensboro/Hi Pt, NC at 12:00Z on 2021-09-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1161 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Greensboro/Hi Pt, NC at 12:00Z on 2021-09-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 34 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
1161 J/kg
Mixed-layer CIN
-41 J/kg
Mixed-layer LCL
818 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
34 m²/s²
0-3 km storm-relative helicity
8 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

355 
WUUS51 KRNK 081815
SVRRNK
NCC171-193-081900-
/O.NEW.KRNK.SV.W.0206.210908T1815Z-210908T1900Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service BLACKSBURG VA
215 PM EDT Wed Sep 8 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 300 PM EDT.

* At 215 PM EDT, a severe thunderstorm was located over Benham, or
  near Traphill, 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...
  Elkin...
  Mountain Park...
  Benham...
  State Road...
  and Dockery.

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 3624 8106 3631 8111 3643 8079 3630 8073
TIME...MOT...LOC 1815Z 247DEG 18KT 3630 8097 

TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

RAB
2 follow-up statements
748 
WWUS51 KRNK 081830
SVSRNK

Severe Weather Statement
National Weather Service BLACKSBURG VA
230 PM EDT Wed Sep 8 2021

NCC171-193-081900-
/O.CON.KRNK.SV.W.0206.000000T0000Z-210908T1900Z/
Surry NC-Wilkes NC-
230 PM EDT Wed Sep 8 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 300 PM EDT
FOR SOUTHWESTERN SURRY AND EAST CENTRAL WILKES COUNTIES...

At 230 PM EDT, a severe thunderstorm was located over State Road, or
near Mountain Park, moving northeast 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...
Elkin...
Mountain Park...
Benham...
and State Road.

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 3627 8096 3634 8097 3643 8079 3630 8073
TIME...MOT...LOC 1830Z 247DEG 18KT 3633 8088 

TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

RAB
672 
WWUS51 KRNK 081844
SVSRNK

Severe Weather Statement
National Weather Service BLACKSBURG VA
244 PM EDT Wed Sep 8 2021

NCC171-193-081854-
/O.CAN.KRNK.SV.W.0206.000000T0000Z-210908T1900Z/
Surry NC-Wilkes NC-
244 PM EDT Wed Sep 8 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN SURRY AND EAST 
CENTRAL WILKES COUNTIES IS CANCELLED...
                
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning has been cancelled.  However heavy rain is
still possible with this thunderstorm.

LAT...LON 3627 8096 3634 8097 3643 8079 3630 8073
TIME...MOT...LOC 1841Z 247DEG 18KT 3636 8080 

$$

RAB

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 8, 10:00 AM EDTSpecial Weather StatementRNKCaswell, Rockingham, Stokes60 min
Sep 8, 11:07 AM EDTSpecial Weather StatementRNKPerson38 min
Sep 8, 12:34 PM EDTSpecial Weather StatementRNKAlleghany56 min
Sep 8, 12:35 PM EDTSpecial Weather StatementRNKWilkes40 min
Sep 8, 1:27 PM EDTSpecial Weather StatementRNKSurry63 min
Sep 8, 1:32 PM EDTSevere Thunderstorm WarningRNKSurry58 min
Sep 8, 1:47 PM EDTTornado WarningRNKSurry28 min
Sep 8, 2:20 PM EDTSevere Thunderstorm WarningRNKSurry26 min
Sep 8, 2:34 PM EDTSpecial Weather StatementRNKWilkes56 min
Sep 8, 2:54 PM EDTSpecial Weather StatementRNKSurry51 min
Sep 8, 3:04 PM EDTSevere Thunderstorm WarningRNKWilkes56 min
Sep 8, 3:31 PM EDTSevere Thunderstorm WarningRNKSurry, Yadkin33 min
Sep 8, 4:03 PM EDTSpecial Weather StatementRNKWilkes27 min
Sep 8, 6:06 PM EDTSpecial Weather StatementRNKYadkin24 min
Sep 8, 6:34 PM EDTSpecial Weather StatementRNKForsyth26 min
Sep 8, 7:01 PM EDTSpecial Weather StatementRNKStokes29 min
Sep 8, 7:40 PM EDTSpecial Weather StatementRNKStokes35 min

Nearby

Severe Thunderstorm Warnings in North Carolina, 2021Every 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.