Alert archive / Virginia / Special Weather Statements in 2021

Special Weather Statement, NWS Blacksburg, VA

September 8, 2021Carroll County, Virginia

NWS Blacksburg, VA issued this special weather statement at Sep 8, 2021, 1:21 PM EDT for Carroll County, Virginia. It was in force for 54 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, 1:21 PM EDT (17:21 UTC)
Expired: Sep 8, 2021, 2:15 PM EDT
In force: 54 min
Issued by: NWS Blacksburg, VA
Hail: 0.75 in
Wind: 40

County Carroll County, VA

The radar

The Roanoke radar (KFCX), 51 km from the middle of the area, began a volume at 17:21 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 108 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: 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.

637 
WWUS81 KRNK 081721
SPSRNK

Special Weather Statement
National Weather Service BLACKSBURG VA
121 PM EDT Wed Sep 8 2021
 
VAZ016-081815-
Carroll VA-
121 PM EDT Wed Sep 8 2021

...A strong thunderstorm will impact portions of 
central Carroll County through 215 PM EDT...

At 121 PM EDT, Doppler radar was tracking a strong thunderstorm over
Woodlawn, or near Hillsville, moving east at 15 mph.

HAZARD...Winds in excess of 40 mph and penny size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around 
         unsecured objects. Minor damage to outdoor objects is 
         possible.

Locations impacted include...
Hillsville...
Dugspur...
Gladesboro...
and Woodlawn.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building. 

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.

This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

&&

LAT...LON 3676 8089 3691 8062 3676 8050 3665 8086
TIME...MOT...LOC 1721Z 263DEG 13KT 3672 8079 

MAX HAIL SIZE...0.75 IN
MAX WIND GUST...40 MPH

$$

RAB

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 8, 10:48 AM EDT	Special Weather Statement	RNK	City of Danville	42 min
Sep 8, 11:49 AM EDT	Special Weather Statement	RNK	Charlotte	56 min
Sep 8, 1:24 PM EDT	Severe Thunderstorm Warning	RNK	Carroll	37 min
Sep 8, 1:32 PM EDT	Severe Thunderstorm Warning	RNK	Carroll	58 min
Sep 8, 2:02 PM EDT	Special Weather Statement	RNK	Floyd	43 min
Sep 8, 2:20 PM EDT	Severe Thunderstorm Warning	RNK	Patrick	26 min
Sep 8, 2:22 PM EDT	Special Weather Statement	RNK	Floyd	23 min
Sep 8, 2:43 PM EDT	Severe Thunderstorm Warning	RNK	Floyd, Franklin	30 min
Sep 8, 2:51 PM EDT	Special Weather Statement	RNK	Bedford	39 min
Sep 8, 3:15 PM EDT	Special Weather Statement	RNK	Franklin	45 min
Sep 8, 3:19 PM EDT	Special Weather Statement	RNK	Bedford	41 min
Sep 8, 3:24 PM EDT	Severe Thunderstorm Warning	RNK	Bedford, Botetourt, Rockbridge	36 min
Sep 8, 4:10 PM EDT	Special Weather Statement	RNK	City of Buena Vista	35 min
Sep 8, 10:00 AM EDT	Special Weather Statement	RNK	Caswell, Rockingham, Stokes	60 min
Sep 8, 11:07 AM EDT	Special Weather Statement	RNK	Person	38 min
Sep 8, 12:34 PM EDT	Special Weather Statement	RNK	Alleghany	56 min
Sep 8, 12:35 PM EDT	Special Weather Statement	RNK	Wilkes	40 min
Sep 8, 1:27 PM EDT	Special Weather Statement	RNK	Surry	63 min
Sep 8, 1:47 PM EDT	Tornado Warning	RNK	Surry	28 min
Sep 8, 2:15 PM EDT	Severe Thunderstorm Warning	RNK	Surry, Wilkes	29 min
Sep 8, 2:34 PM EDT	Special Weather Statement	RNK	Wilkes	56 min
Sep 8, 2:54 PM EDT	Special Weather Statement	RNK	Surry	51 min
Sep 8, 3:04 PM EDT	Severe Thunderstorm Warning	RNK	Wilkes	56 min
Sep 8, 3:31 PM EDT	Severe Thunderstorm Warning	RNK	Surry, Yadkin	33 min
Sep 8, 4:03 PM EDT	Special Weather Statement	RNK	Wilkes	27 min
Sep 8, 6:06 PM EDT	Special Weather Statement	RNK	Yadkin	24 min
Sep 8, 6:34 PM EDT	Special Weather Statement	RNK	Forsyth	26 min
Sep 8, 7:01 PM EDT	Special Weather Statement	RNK	Stokes	29 min
Sep 8, 7:40 PM EDT	Special Weather Statement	RNK	Stokes	35 min
Sep 8, 6:28 PM EDT	Special Weather Statement	RNK	Greenbrier	32 min

Nearby

Special Weather Statements in Virginia, 2021 Every special weather statement 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.