Alert archive / Virginia / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 32, NWS Blacksburg, VA

April 9, 2021Pittsylvania County, Virginia

NWS Blacksburg, VA issued this severe thunderstorm warning at Apr 9, 2021, 5:10 PM EDT for Pittsylvania County, Virginia. It was in force for 36 min. 3 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: Apr 9, 2021, 5:10 PM EDT (21:10 UTC)
Expired: Apr 9, 2021, 5:46 PM EDT
In force: 36 min
Issued by: NWS Blacksburg, VA
Area: Storm-based polygon
Tornado: Possible
Hail: 1.75 in
Wind: 70.0 mph

County Pittsylvania County, VA

The radar

The Roanoke radar (KFCX), 97 km from the middle of the area, began a volume at 21:12 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
Apr 9, 5:12 PM EDT	HAIL 1.25	2 W Blairs, VA	TIME ESTIMATED FROM RADAR.
Apr 9, 5:27 PM EDT	HAIL 1	3 Nnw Ringgold, VA
Apr 9, 5:42 PM EDT	HAIL 1.75	4 Ese Ringgold, VA

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

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Apr 9, 3:38 PM EDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Roanoke, VA (KRNK), launched 12:00Z, 9.2 hours before the alert went out and 61 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: 132 J/kg
Mixed-layer CIN: -77 J/kg
Mixed-layer LCL: 654 m above ground
0-6 km bulk shear: 47 kt
0-1 km storm-relative helicity: 182 m²/s²
0-3 km storm-relative helicity: 199 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

As transmitted.

520 
WUUS51 KRNK 092110
SVRRNK
VAC143-092200-
/O.NEW.KRNK.SV.W.0032.210409T2110Z-210409T2200Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service BLACKSBURG VA
510 PM EDT Fri Apr 9 2021

The National Weather Service in BLACKSBURG has issued a

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

* Until 600 PM EDT.

* At 509 PM EDT, a severe thunderstorm was located near Blairs,
  moving east at 20 mph.

  HAZARD...Golf ball size hail and 70 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...People and animals outdoors will be injured. Expect hail 
           damage to roofs, siding, windows, and vehicles. Expect 
           considerable tree damage. Wind damage is also likely to 
           mobile homes, roofs, and outbuildings.

* Locations impacted include...
  Blairs...
  Ringgold...
  and Keeling.

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 3668 7918 3655 7922 3668 7946 3674 7942
      3676 7917
TIME...MOT...LOC 2109Z 287DEG 18KT 3670 7944 

TORNADO...POSSIBLE
HAIL...1.75IN
WIND...70MPH
 
$$

DS

1 follow-up statement

706 
WWUS51 KRNK 092146
SVSRNK

Severe Weather Statement
National Weather Service BLACKSBURG VA
546 PM EDT Fri Apr 9 2021

VAC143-092155-
/O.CAN.KRNK.SV.W.0032.000000T0000Z-210409T2200Z/
Pittsylvania VA-
546 PM EDT Fri Apr 9 2021

...THE SEVERE THUNDERSTORM WARNING FOR 
SOUTHEASTERN PITTSYLVANIA COUNTY IS CANCELLED...
        
The storm which prompted the warning has moved out of the area.
Therefore, the warning has been cancelled.

A Severe Thunderstorm Watch remains in effect until midnight EDT for
north central North Carolina...and south central and west central
Virginia.

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 3668 7918 3655 7922 3668 7946 3674 7942
      3676 7917
TIME...MOT...LOC 2144Z 287DEG 18KT 3665 7922 

$$

DS

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 8, 8:12 PM EDT	Special Weather Statement	RNK	Bath	48 min
Apr 8, 8:23 PM EDT	Severe Thunderstorm Warning	RNK	Alleghany, Botetourt	37 min
Apr 8, 8:38 PM EDT	Special Weather Statement	RNK	Campbell	37 min
Apr 8, 8:48 PM EDT	Severe Thunderstorm Warning	RNK	Bedford, Campbell, City of Lynchburg	27 min
Apr 8, 9:15 PM EDT	Areal Flood Advisory	RNK	Alleghany, Botetourt, Craig	4 hr
Apr 8, 9:15 PM EDT	Special Weather Statement	RNK	Alleghany, Bath, City of Covington	90 min
Apr 8, 9:21 PM EDT	Severe Thunderstorm Warning	RNK	Amherst, Appomattox, Campbell, City of Lynchburg	54 min
Apr 8, 9:27 PM EDT	Severe Thunderstorm Warning	RNK	Alleghany, Bath, Botetourt, City of Covington	63 min
Apr 8, 9:40 PM EDT	Special Weather Statement	RNK	Bedford, Botetourt	65 min
Apr 8, 10:14 PM EDT	Special Weather Statement	RNK	Campbell	61 min
Apr 8, 10:44 PM EDT	Special Weather Statement	RNK	Buckingham	31 min
Apr 8, 11:55 PM EDT	Special Weather Statement	RNK	City of Lynchburg	35 min
Apr 9, 1:28 PM EDT	Special Weather Statement	RNK	Pulaski	32 min
Apr 9, 1:52 PM EDT	Special Weather Statement	RNK	Bath	23 min
Apr 9, 1:58 PM EDT	Special Weather Statement	RNK	City of Radford	32 min
Apr 9, 2:05 PM EDT	Special Weather Statement	RNK	Alleghany	25 min
Apr 9, 2:09 PM EDT	Severe Thunderstorm Warning	RNK	Bath	51 min
Apr 9, 2:27 PM EDT	Special Weather Statement	RNK	Montgomery, City of Radford	33 min
Apr 9, 2:29 PM EDT	Special Weather Statement	RNK	Pulaski	31 min
Apr 9, 2:50 PM EDT	Special Weather Statement	RNK	Giles	25 min
Apr 9, 2:53 PM EDT	Special Weather Statement	RNK	Alleghany	37 min
Apr 9, 2:55 PM EDT	Severe Thunderstorm Warning	RNK	Floyd	50 min
Apr 9, 3:11 PM EDT	Special Weather Statement	RNK	Carroll	34 min
Apr 9, 3:12 PM EDT	Areal Flood Advisory	RNK	Carroll, Floyd, Grayson, Montgomery, Pulaski, Wythe	3 hr
Apr 9, 3:14 PM EDT	Special Weather Statement	RNK	Craig	31 min
Apr 9, 3:21 PM EDT	Special Weather Statement	RNK	Bath	24 min
Apr 9, 3:31 PM EDT	Severe Thunderstorm Warning	RNK	Floyd, Franklin, Patrick	44 min
Apr 9, 3:40 PM EDT	Special Weather Statement	RNK	Halifax	35 min
Apr 9, 3:56 PM EDT	Severe Thunderstorm Warning	RNK	Franklin	49 min
Apr 9, 4:07 PM EDT	Severe Thunderstorm Warning	RNK	Halifax	23 min
Apr 9, 4:10 PM EDT	Special Weather Statement	RNK	City of Martinsville	35 min
Apr 9, 4:19 PM EDT	Severe Thunderstorm Warning	RNK	Franklin, Henry, Pittsylvania	41 min
Apr 9, 4:31 PM EDT	Severe Thunderstorm Warning	RNK	Halifax	44 min
Apr 9, 4:35 PM EDT	Severe Thunderstorm Warning	RNK	Floyd, Franklin, Patrick	40 min
Apr 9, 4:40 PM EDT	Severe Thunderstorm Warning	RNK	Henry, Pittsylvania	50 min
Apr 9, 5:13 PM EDT	Tornado Warning	RNK	Pittsylvania	33 min
Apr 9, 5:27 PM EDT	Tornado Warning	RNK	Halifax, Pittsylvania	48 min
Apr 9, 5:55 PM EDT	Tornado Warning	RNK	Halifax	50 min
Apr 9, 6:00 PM EDT	Special Weather Statement	RNK	City of Martinsville	45 min
Apr 9, 6:16 PM EDT	Special Weather Statement	RNK	Henry, City of Martinsville	44 min
Apr 9, 6:41 PM EDT	Special Weather Statement	RNK	Mecklenburg	34 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.