Alert archive / Virginia / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 204, NWS Blacksburg, VA

September 8, 2021Carroll County, Virginia

NWS Blacksburg, VA issued this severe thunderstorm warning at Sep 8, 2021, 1:24 PM EDT for Carroll County, Virginia. It was in force for 37 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, 1:24 PM EDT (17:24 UTC)
Expired
Sep 8, 2021, 2:01 PM EDT
In force
37 min
Issued by
NWS Blacksburg, VA
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

County Carroll County, VA

The radar

The Roanoke radar (KFCX), 48 km from the middle of the area, began a volume at 17:27 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, 5.4 hours before the alert went out and 105 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.

247 
WUUS51 KRNK 081724
SVRRNK
VAC035-081815-
/O.NEW.KRNK.SV.W.0204.210908T1724Z-210908T1815Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service BLACKSBURG VA
124 PM EDT Wed Sep 8 2021

The National Weather Service in BLACKSBURG has issued a

* Severe Thunderstorm Warning for...
  Carroll County in southwestern Virginia...

* Until 215 PM EDT.

* At 123 PM EDT, a severe thunderstorm was located over Hillsville,
  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...
  Hillsville...
  Dugspur...
  Woodlawn...
  and Gladesboro.

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 3676 8088 3689 8061 3677 8051 3676 8051
      3666 8085
TIME...MOT...LOC 1723Z 263DEG 19KT 3674 8074 

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

$$

RAB
2 follow-up statements
114 
WWUS51 KRNK 081751
SVSRNK

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

VAC035-081815-
/O.CON.KRNK.SV.W.0204.000000T0000Z-210908T1815Z/
Carroll VA-
151 PM EDT Wed Sep 8 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 215 PM EDT
FOR EAST CENTRAL CARROLL COUNTY...

At 151 PM EDT, a severe thunderstorm was located near Laurel Fork, or
7 miles southwest of Willis, 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...
Hillsville...
Dugspur...
and Gladesboro.

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 3677 8076 3685 8058 3677 8051 3676 8051
      3670 8072
TIME...MOT...LOC 1751Z 263DEG 19KT 3676 8055 

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

$$

RAB
699 
WWUS51 KRNK 081801
SVSRNK

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

VAC035-081810-
/O.CAN.KRNK.SV.W.0204.000000T0000Z-210908T1815Z/
Carroll VA-
201 PM EDT Wed Sep 8 2021

...THE SEVERE THUNDERSTORM WARNING FOR EASTern CARROLL COUNTY 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.

LAT...LON 3677 8076 3685 8058 3677 8051 3676 8051
      3670 8072
TIME...MOT...LOC 1758Z 263DEG 19KT 3677 8049 

$$

RAB

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 8, 10:48 AM EDTSpecial Weather StatementRNKCity of Danville42 min
Sep 8, 11:49 AM EDTSpecial Weather StatementRNKCharlotte56 min
Sep 8, 1:21 PM EDTSpecial Weather StatementRNKCarroll54 min
Sep 8, 1:32 PM EDTSevere Thunderstorm WarningRNKCarroll58 min
Sep 8, 2:02 PM EDTSpecial Weather StatementRNKFloyd43 min
Sep 8, 2:20 PM EDTSevere Thunderstorm WarningRNKPatrick26 min
Sep 8, 2:22 PM EDTSpecial Weather StatementRNKFloyd23 min
Sep 8, 2:43 PM EDTSevere Thunderstorm WarningRNKFloyd, Franklin30 min
Sep 8, 2:51 PM EDTSpecial Weather StatementRNKBedford39 min
Sep 8, 3:15 PM EDTSpecial Weather StatementRNKFranklin45 min
Sep 8, 3:19 PM EDTSpecial Weather StatementRNKBedford41 min
Sep 8, 3:24 PM EDTSevere Thunderstorm WarningRNKBedford, Botetourt, Rockbridge36 min
Sep 8, 4:10 PM EDTSpecial Weather StatementRNKCity of Buena Vista35 min

Nearby

Severe Thunderstorm Warnings in Virginia, 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.