Alert archive / Virginia / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 140, NWS Blacksburg, VA

August 10, 2021Charlotte County, Virginia

NWS Blacksburg, VA issued this severe thunderstorm warning at Aug 10, 2021, 5:39 PM EDT for Charlotte County, Virginia. It was in force for 51 min. 2 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, 5:39 PM EDT (21:39 UTC)
Expired: Aug 10, 2021, 6:30 PM EDT
In force: 51 min
Issued by: NWS Blacksburg, VA
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Charlotte County, VA

The radar

The Roanoke radar (KFCX), 145 km from the middle of the area, began a volume at 21:39 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, 5:44 PM EDT	TSTM WND DMG	Charlotte Court House, VA	TREE DOWN ON HOME IN CHARLOTTE COURTHOUSE.
Aug 10, 6:12 PM EDT	TSTM WND DMG	Redoak, VA	TREE DOWN IN RED OAK, PRIOR TO NEXT BATCH OF STORMS.

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, 9.7 hours before the alert went out and 80 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.

468 
WUUS51 KRNK 102139
SVRRNK
VAC037-102230-
/O.NEW.KRNK.SV.W.0140.210810T2139Z-210810T2230Z/

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

The National Weather Service in BLACKSBURG has issued a

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

* Until 630 PM EDT.

* At 539 PM EDT, severe thunderstorms were located along a line
  extending from near Prospect to near Mt Laurel, 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...
  Keysville...
  Charlotte Court House...
  Redoak...
  Drakes Branch...
  Abilene...
  Cullen...
  and Wylliesburg.

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.

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 3676 7860 3680 7868 3681 7867
      3683 7869 3686 7867 3692 7875 3694 7873
      3699 7875 3699 7877 3696 7877 3695 7879
      3696 7880 3720 7866 3714 7859 3715 7855
      3714 7853 3709 7848 3708 7845
TIME...MOT...LOC 2139Z 271DEG 16KT 3726 7855 3691 7874 

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

$$

RR

3 follow-up statements

373 
WWUS51 KRNK 102210
SVSRNK

Severe Weather Statement
National Weather Service BLACKSBURG VA
610 PM EDT Tue Aug 10 2021

VAC037-102230-
/O.CON.KRNK.SV.W.0140.000000T0000Z-210810T2230Z/
Charlotte VA-
610 PM EDT Tue Aug 10 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 630 PM EDT
FOR
EASTERN CHARLOTTE COUNTY...

At 610 PM EDT, severe thunderstorms were located along a line
extending from near Longwood University to near Wylliesburg, 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...
Keysville...
Redoak...
Drakes Branch...
Wylliesburg...
and Abilene.

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.

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 3676 7860 3680 7868 3681 7867
      3683 7869 3686 7867 3714 7859 3715 7855
      3714 7853 3709 7848 3708 7845
TIME...MOT...LOC 2210Z 271DEG 16KT 3726 7838 3691 7857 

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

$$

RR

284 
WWUS51 KRNK 102220
SVSRNK

Severe Weather Statement
National Weather Service BLACKSBURG VA
620 PM EDT Tue Aug 10 2021

VAC037-102230-
/O.CON.KRNK.SV.W.0140.000000T0000Z-210810T2230Z/
Charlotte VA-
620 PM EDT Tue Aug 10 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 630 PM EDT
FOR
SOUTHEASTERN CHARLOTTE COUNTY...

At 620 PM EDT, severe thunderstorms were located along a line
extending from near Rice to near Wylliesburg, 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...
Keysville...
Redoak...
and Wylliesburg.

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.

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 3676 7860 3678 7865 3714 7853
      3709 7848 3708 7845
TIME...MOT...LOC 2220Z 271DEG 16KT 3726 7833 3691 7852 

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

$$

RR

389 
WWUS51 KRNK 102228
SVSRNK

Severe Weather Statement
National Weather Service BLACKSBURG VA
628 PM EDT Tue Aug 10 2021

VAC037-102238-
/O.EXP.KRNK.SV.W.0140.000000T0000Z-210810T2230Z/
Charlotte VA-
628 PM EDT Tue Aug 10 2021

...THE SEVERE THUNDERSTORM WARNING FOR 
SOUTHEASTERN CHARLOTTE COUNTY WILL EXPIRE AT 630 PM EDT...
    
The storms which prompted the warning have weakened below severe
limits, and have exited the warned area. Therefore, the warning will
be allowed to expire.

LAT...LON 3689 7849 3676 7860 3678 7865 3714 7853
      3709 7848 3708 7845
TIME...MOT...LOC 2228Z 271DEG 16KT 3726 7829 3691 7848 

$$

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, 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, 7:04 PM EDT	Severe Thunderstorm Warning	RNK	Charlotte, Halifax	56 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.