Alert archive / Virginia / Special Weather Statements in 2021

Special Weather Statement, NWS Blacksburg, VA

July 16, 2021Wythe County, Virginia

NWS Blacksburg, VA issued this special weather statement at Jul 16, 2021, 8:21 PM EDT for Wythe County, Virginia. It was in force for 24 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 16, 2021, 8:21 PM EDT (00:21 UTC)
Expired: Jul 16, 2021, 8:45 PM EDT
In force: 24 min
Issued by: NWS Blacksburg, VA

County Wythe County, VA

The radar

The Roanoke radar (KFCX), 88 km from the middle of the area, began a volume at 00:23 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 00:00Z, 0.4 hours before the alert went out and 147 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: 2452 J/kg
Mixed-layer CIN: -4 J/kg
Mixed-layer LCL: 1310 m above ground
0-6 km bulk shear: 5 kt
0-1 km storm-relative helicity: 36 m²/s²
0-3 km storm-relative helicity: 82 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

914 
WWUS81 KRNK 170021
SPSRNK

Special Weather Statement
National Weather Service BLACKSBURG VA
821 PM EDT Fri Jul 16 2021

VAZ009-012-170045-
Wythe-Smyth-
821 PM EDT Fri Jul 16 2021

...A LINE OF STRONG THUNDERSTORMS WILL AFFECT 
EAST CENTRAL SMYTH AND SOUTHWESTERN WYTHE COUNTIES...

At 821 PM EDT, radar indicated strong thunderstorms were located
along a line extending from near Wytheville to Sugar Grove. Movement
was northeast at 15 mph.

Winds in excess of 30 mph are possible with these storms.

Locations impacted include...
Wytheville...
Rural Retreat...
Sugar Grove...
Mount Rogers National Recreation Area...
Speedwell...
and Crockett.

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.

LAT...LON 3700 8104 3691 8096 3675 8134 3674 8139
      3673 8141 3681 8146
TIME...MOT...LOC 0021Z 241DEG 11KT 3691 8110 3679 8138 

$$

RR

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 17, 12:01 PM EDT	Special Weather Statement	RNK	Bedford, Franklin	29 min
Jul 17, 12:26 PM EDT	Severe Thunderstorm Warning	RNK	Franklin	49 min
Jul 17, 12:47 PM EDT	Special Weather Statement	RNK	Bedford	28 min
Jul 17, 1:20 PM EDT	Special Weather Statement	RNK	Franklin	25 min
Jul 17, 1:33 PM EDT	Special Weather Statement	RNK	Bedford	42 min
Jul 17, 1:38 PM EDT	Special Weather Statement	RNK	Carroll	37 min
Jul 17, 1:43 PM EDT	Special Weather Statement	RNK	Campbell	47 min
Jul 17, 1:45 PM EDT	Severe Thunderstorm Warning	RNK	Carroll, Patrick	43 min
Jul 17, 1:56 PM EDT	Severe Thunderstorm Warning	RNK	Amherst, Appomattox, Campbell, City of Lynchburg	64 min
Jul 17, 2:11 PM EDT	Areal Flood Advisory	RNK	Carroll, Floyd, Patrick	3 hr
Jul 17, 2:14 PM EDT	Areal Flood Advisory	RNK	Appomattox, Campbell	3 hr
Jul 17, 2:37 PM EDT	Severe Thunderstorm Warning	RNK	Appomattox, Campbell, Charlotte	53 min
Jul 17, 2:45 PM EDT	Special Weather Statement	RNK	Patrick	30 min
Jul 17, 2:47 PM EDT	Special Weather Statement	RNK	City of Martinsville	28 min
Jul 17, 2:53 PM EDT	Severe Thunderstorm Warning	RNK	Franklin, Henry, Pittsylvania, City of Martinsville	36 min
Jul 17, 2:59 PM EDT	Special Weather Statement	RNK	Franklin	31 min
Jul 17, 3:00 PM EDT	Special Weather Statement	RNK	Prince Edward	15 min
Jul 17, 3:16 PM EDT	Areal Flood Advisory	RNK	Franklin	2 hr
Jul 17, 3:24 PM EDT	Special Weather Statement	RNK	Franklin	36 min
Jul 17, 3:27 PM EDT	Special Weather Statement	RNK	Tazewell	48 min
Jul 17, 3:42 PM EDT	Special Weather Statement	RNK	City of Danville	48 min
Jul 17, 3:48 PM EDT	Severe Thunderstorm Warning	RNK	Pittsylvania, City of Danville	57 min
Jul 17, 3:52 PM EDT	Areal Flood Advisory	RNK	Pittsylvania, City of Danville	3 hr
Jul 17, 3:54 PM EDT	Special Weather Statement	RNK	Halifax	36 min
Jul 17, 4:11 PM EDT	Flash Flood Warning	RNK	Pittsylvania, City of Danville	3 hr
Jul 17, 4:17 PM EDT	Special Weather Statement	RNK	Bland, Giles, Smyth, Tazewell	43 min
Jul 17, 4:22 PM EDT	Special Weather Statement	RNK	Charlotte	23 min
Jul 17, 4:26 PM EDT	Special Weather Statement	RNK	Halifax	34 min
Jul 17, 4:47 PM EDT	Special Weather Statement	RNK	Charlotte	28 min
Jul 17, 5:01 PM EDT	Special Weather Statement	RNK	Alleghany, Bath, Craig, Giles, City of Covington	59 min
Jul 17, 5:26 PM EDT	Special Weather Statement	RNK	Appomattox	34 min
Jul 17, 5:45 PM EDT	Special Weather Statement	RNK	Floyd	30 min
Jul 17, 6:04 PM EDT	Special Weather Statement	RNK	Amherst, Botetourt, Montgomery, Roanoke, Rockbridge, City of Buena Vista and 3 more	56 min
Jul 17, 6:19 PM EDT	Special Weather Statement	RNK	Floyd	26 min
Jul 17, 6:25 PM EDT	Severe Thunderstorm Warning	RNK	Amherst, Bedford, Botetourt, Rockbridge, City of Buena Vista, City of Lexington	65 min
Jul 17, 6:58 PM EDT	Special Weather Statement	RNK	City of Roanoke, City of Salem	47 min
Jul 17, 7:05 PM EDT	Special Weather Statement	RNK	Patrick	40 min
Jul 17, 7:10 PM EDT	Areal Flood Advisory	RNK	Carroll, Floyd, Grayson, Patrick	3 hr
Jul 17, 7:30 PM EDT	Severe Thunderstorm Warning	RNK	Bedford, Campbell, City of Lynchburg	39 min
Jul 17, 7:44 PM EDT	Severe Thunderstorm Warning	RNK	Carroll, Floyd, Franklin, Grayson, Henry, Patrick	61 min
Jul 17, 1:06 PM EDT	Special Weather Statement	RNK	Surry	39 min
Jul 17, 2:49 PM EDT	Special Weather Statement	RNK	Caswell	26 min
Jul 17, 2:56 PM EDT	Severe Thunderstorm Warning	RNK	Caswell, Rockingham	49 min
Jul 17, 4:00 PM EDT	Severe Thunderstorm Warning	RNK	Caswell, Rockingham	60 min
Jul 17, 5:00 PM EDT	Severe Thunderstorm Warning	RNK	Caswell, Rockingham	60 min
Jul 17, 5:10 PM EDT	Special Weather Statement	RNK	Wilkes	35 min
Jul 17, 5:39 PM EDT	Special Weather Statement	RNK	Wilkes	36 min
Jul 17, 6:02 PM EDT	Special Weather Statement	RNK	Caswell	13 min
Jul 17, 6:08 PM EDT	Special Weather Statement	RNK	Alleghany, Surry, Watauga, Wilkes	67 min
Jul 17, 6:50 PM EDT	Areal Flood Advisory	RNK	Caswell, Rockingham	7 hr
Jul 17, 7:34 PM EDT	Special Weather Statement	RNK	Yadkin	26 min
Jul 16, 8:16 PM EDT	Special Weather Statement	RNK	Summers	29 min
Jul 16, 8:39 PM EDT	Special Weather Statement	RNK	Monroe	36 min
Jul 17, 4:35 AM EDT	Special Weather Statement	RNK	Greenbrier, Summers	55 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.