Alert archive / Virginia / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 141, NWS Blacksburg, VA

August 10, 2021Charlotte County, Halifax County, Virginia

NWS Blacksburg, VA issued this severe thunderstorm warning at Aug 10, 2021, 7:04 PM EDT for Charlotte County, Halifax County, Virginia. It was in force for 56 min. 4 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Aug 10, 2021, 7:04 PM EDT (23:04 UTC)
Expired: Aug 10, 2021, 8:00 PM EDT
In force: 56 min
Issued by: NWS Blacksburg, VA
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Charlotte County, VA, Halifax County, VA

The radar

The Raleigh/Durham radar (KRAX), 115 km from the middle of the area, began a volume at 23:02 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.

What was reported inside it

Time	Report	Where	Remark
Aug 10, 7:05 PM EDT	TSTM WND DMG	1 Wnw South Boston, VA	TREE DOWN ON EASLEY STREET.
Aug 10, 7:05 PM EDT	TSTM WND DMG	Scottsburg, VA	CORRECTS PREVIOUS TSTM WND DMG REPORT FROM SCOTTSBURG. TREE DOWN ON TERRYS BRIDGE ROAD IN SCOTTSBURG.
Aug 10, 7:12 PM EDT	TSTM WND DMG	South Boston, VA	TREE DOWN ON SUMMIT DRIVE.
Aug 10, 7:18 PM EDT	TSTM WND DMG	Redoak, VA	MULTIPLE TREES DOWN IN RED OAK.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Roanoke, VA (KRNK), launched 12:00Z, 11.1 hours before the alert went out and 93 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: 222 J/kg
Mixed-layer CIN: -65 J/kg
Mixed-layer LCL: 1006 m above ground
0-6 km bulk shear: 12 kt
0-1 km storm-relative helicity: -16 m²/s²
0-3 km storm-relative helicity: 22 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

053 
WUUS51 KRNK 102304
SVRRNK
VAC037-083-110000-
/O.NEW.KRNK.SV.W.0141.210810T2304Z-210811T0000Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service BLACKSBURG VA
704 PM EDT Tue Aug 10 2021

The National Weather Service in BLACKSBURG has issued a

* Severe Thunderstorm Warning for...
  Southeastern Charlotte County in south central Virginia...
  Southeastern Halifax County in south central Virginia...

* Until 800 PM EDT.

* At 704 PM EDT, severe thunderstorms were located along a line
  extending from Victoria to near South Boston, moving southeast at 5
  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...
  South Boston...
  Redoak...
  Clover...
  Scottsburg...
  Hitesburg...
  Staunton River State Park...
  and Dryburg.

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.

Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

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 3689 7849 3670 7865 3663 7855 3667 7861
      3669 7865 3669 7868 3668 7870 3664 7871
      3659 7871 3655 7874 3654 7873 3654 7876
      3670 7899 3699 7847
TIME...MOT...LOC 2304Z 307DEG 6KT 3698 7824 3668 7893 

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

$$

RR

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 10, 11:01 AM EDT	Special Weather Statement	RNK	Bland	29 min
Aug 10, 11:35 AM EDT	Special Weather Statement	RNK	Pulaski	40 min
Aug 10, 12:30 PM EDT	Special Weather Statement	RNK	Floyd, Pulaski, City of Radford	45 min
Aug 10, 12:32 PM EDT	Special Weather Statement	RNK	Smyth	28 min
Aug 10, 12:43 PM EDT	Severe Thunderstorm Warning	RNK	Carroll, Floyd, Montgomery, Pulaski, City of Radford	46 min
Aug 10, 1:08 PM EDT	Special Weather Statement	RNK	Henry, City of Martinsville	22 min
Aug 10, 1:29 PM EDT	Special Weather Statement	RNK	Henry, City of Martinsville	61 min
Aug 10, 1:56 PM EDT	Special Weather Statement	RNK	City of Roanoke, City of Salem	49 min
Aug 10, 2:20 PM EDT	Special Weather Statement	RNK	Carroll, Patrick, City of Galax	25 min
Aug 10, 2:22 PM EDT	Special Weather Statement	RNK	Pittsylvania	23 min
Aug 10, 2:28 PM EDT	Severe Thunderstorm Warning	RNK	Carroll, Floyd, Grayson, Patrick, City of Galax	62 min
Aug 10, 2:40 PM EDT	Special Weather Statement	RNK	Bedford	35 min
Aug 10, 2:44 PM EDT	Special Weather Statement	RNK	Buckingham	31 min
Aug 10, 2:51 PM EDT	Special Weather Statement	RNK	Franklin	24 min
Aug 10, 2:57 PM EDT	Severe Thunderstorm Warning	RNK	Bedford, Campbell, Franklin, Pittsylvania	63 min
Aug 10, 3:10 PM EDT	Special Weather Statement	RNK	Patrick	35 min
Aug 10, 3:11 PM EDT	Special Weather Statement	RNK	Buckingham	34 min
Aug 10, 3:44 PM EDT	Special Weather Statement	RNK	Campbell	31 min
Aug 10, 3:58 PM EDT	Special Weather Statement	RNK	Buckingham	32 min
Aug 10, 4:06 PM EDT	Special Weather Statement	RNK	Appomattox, Campbell	24 min
Aug 10, 4:14 PM EDT	Severe Thunderstorm Warning	RNK	Appomattox, Campbell, Charlotte, Halifax, Pittsylvania	61 min
Aug 10, 4:19 PM EDT	Severe Thunderstorm Warning	RNK	Buckingham	56 min
Aug 10, 4:36 PM EDT	Special Weather Statement	RNK	Wythe	24 min
Aug 10, 4:39 PM EDT	Special Weather Statement	RNK	Nelson	36 min
Aug 10, 4:53 PM EDT	Severe Thunderstorm Warning	RNK	Amherst, Appomattox, Buckingham	67 min
Aug 10, 5:08 PM EDT	Special Weather Statement	RNK	Rockbridge	37 min
Aug 10, 5:11 PM EDT	Special Weather Statement	RNK	Charlotte	49 min
Aug 10, 5:12 PM EDT	Special Weather Statement	RNK	Cumberland	48 min
Aug 10, 5:26 PM EDT	Areal Flood Advisory	RNK	Buckingham	3 hr
Aug 10, 5:27 PM EDT	Special Weather Statement	RNK	Halifax	48 min
Aug 10, 5:33 PM EDT	Special Weather Statement	RNK	Buckingham	57 min
Aug 10, 5:39 PM EDT	Severe Thunderstorm Warning	RNK	Charlotte	51 min
Aug 10, 6:42 PM EDT	Special Weather Statement	RNK	Halifax	33 min
Aug 10, 6:57 PM EDT	Special Weather Statement	RNK	Halifax	48 min
Aug 10, 7:59 PM EDT	Special Weather Statement	RNK	Halifax	31 min

Nearby

Severe Thunderstorm Warnings in Virginia, 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.