Alert archive / Virginia / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 202, NWS Blacksburg, VA

August 30, 2021Halifax County, Pittsylvania County, Virginia

NWS Blacksburg, VA issued this severe thunderstorm warning at Aug 30, 2021, 7:47 PM EDT for Halifax County, Pittsylvania County, Virginia. It was in force for 35 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 30, 2021, 7:47 PM EDT (23:47 UTC)
Expired
Aug 30, 2021, 8:22 PM EDT
In force
35 min
Issued by
NWS Blacksburg, VA
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Halifax County, VA, Pittsylvania County, VA

The radar

The Roanoke radar (KFCX), 101 km from the middle of the area, began a volume at 23:47 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

TimeReportWhereRemark
Aug 30, 7:50 PM EDTTSTM WND DMG4 Sse Keeling, VAONE TREE DOWN ALONG THE 8420 BLOCK OF KENTUCK ROAD.
Aug 30, 7:57 PM EDTTSTM WND DMG4 Sse Keeling, VAONE TREE DOWN BLOCKING PART OF KENTUCK ROAD.

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, 11.8 hours before the alert went out and 69 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-pSkew-T log-p diagram, Roanoke, VA at 12:00Z on 2021-08-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 747 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Roanoke, VA at 12:00Z on 2021-08-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 53 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
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
747 J/kg
Mixed-layer CIN
-69 J/kg
Mixed-layer LCL
804 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
53 m²/s²
0-3 km storm-relative helicity
94 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

As transmitted.

900 
WUUS51 KRNK 302347
SVRRNK
VAC083-143-310045-
/O.NEW.KRNK.SV.W.0202.210830T2347Z-210831T0045Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service BLACKSBURG VA
747 PM EDT Mon Aug 30 2021

The National Weather Service in BLACKSBURG has issued a

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

* Until 845 PM EDT.

* At 747 PM EDT, a severe thunderstorm was located over Ringgold, or
  7 miles southeast of Blairs, moving east at 10 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...
  Turbeville...
  Ingram...
  Elmo...
  Ringgold...
  Alton...
  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 3656 7934 3657 7933 3657 7931 3658 7930
      3658 7933 3660 7933 3660 7935 3670 7935
      3677 7904 3654 7900
TIME...MOT...LOC 2347Z 271DEG 9KT 3662 7928 

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

$$

BMG
2 follow-up statements
020 
WWUS51 KRNK 310001
SVSRNK

Severe Weather Statement
National Weather Service BLACKSBURG VA
801 PM EDT Mon Aug 30 2021

VAC083-143-310045-
/O.CON.KRNK.SV.W.0202.000000T0000Z-210831T0045Z/
Pittsylvania VA-Halifax VA-
801 PM EDT Mon Aug 30 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 845 PM EDT
FOR SOUTHEASTERN PITTSYLVANIA AND SOUTHWESTERN HALIFAX COUNTIES...

At 801 PM EDT, a severe thunderstorm was located near Elmo, or 8
miles southwest of Ingram, moving east at 15 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

Locations impacted include...
Turbeville...
Ingram...
Elmo...
Ringgold...
Alton...
and Keeling.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Prepare immediately for 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 3658 7933 3660 7933 3660 7935 3670 7935
      3677 7904 3654 7900 3656 7934 3657 7933
      3657 7931 3658 7930
TIME...MOT...LOC 0001Z 266DEG 11KT 3664 7921 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

BMG
481 
WWUS51 KRNK 310022
SVSRNK

Severe Weather Statement
National Weather Service BLACKSBURG VA
822 PM EDT Mon Aug 30 2021

VAC083-143-310032-
/O.CAN.KRNK.SV.W.0202.000000T0000Z-210831T0045Z/
Pittsylvania VA-Halifax VA-
822 PM EDT Mon Aug 30 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN PITTSYLVANIA AND 
SOUTHWESTERN HALIFAX COUNTIES IS CANCELLED...
                
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning has been cancelled.

LAT...LON 3658 7933 3660 7933 3660 7935 3670 7935
      3677 7904 3654 7900 3656 7934 3657 7933
      3657 7931 3658 7930
TIME...MOT...LOC 0021Z 271DEG 9KT 3664 7914 

$$

BMG

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 29, 8:01 PM EDTSpecial Weather StatementRNKMontgomery, Roanoke29 min
Aug 29, 8:33 PM EDTSpecial Weather StatementRNKMontgomery, City of Roanoke, City of Salem27 min
Aug 29, 8:34 PM EDTSpecial Weather StatementRNKFranklin26 min
Aug 29, 9:28 PM EDTSpecial Weather StatementRNKFloyd32 min
Aug 29, 9:31 PM EDTSpecial Weather StatementRNKPittsylvania29 min
Aug 29, 10:01 PM EDTSpecial Weather StatementRNKPatrick29 min
Aug 29, 10:03 PM EDTSpecial Weather StatementRNKPittsylvania27 min
Aug 29, 10:07 PM EDTSpecial Weather StatementRNKAppomattox, Campbell, City of Lynchburg23 min
Aug 29, 10:24 PM EDTSpecial Weather StatementRNKHenry, Patrick51 min
Aug 29, 10:29 PM EDTSpecial Weather StatementRNKHalifax46 min
Aug 29, 10:31 PM EDTSpecial Weather StatementRNKAppomattox, Buckingham, Campbell44 min
Aug 29, 11:11 PM EDTSpecial Weather StatementRNKAppomattox, Buckingham34 min
Aug 29, 11:13 PM EDTSpecial Weather StatementRNKHalifax47 min
Aug 30, 5:04 AM EDTFlash Flood WatchRNKAlleghany, Amherst, Bath, Bedford, Bland, Botetourt and 21 more60 hr
Aug 30, 9:06 AM EDTSpecial Weather StatementRNKGiles39 min
Aug 30, 1:27 PM EDTSpecial Weather StatementRNKSmyth33 min
Aug 30, 2:54 PM EDTSpecial Weather StatementRNKBath51 min
Aug 30, 4:01 PM EDTSpecial Weather StatementRNKCity of Buena Vista29 min
Aug 30, 4:37 PM EDTSpecial Weather StatementRNKRockbridge, City of Buena Vista, City of Lexington38 min
Aug 30, 4:39 PM EDTSpecial Weather StatementRNKCity of Danville36 min
Aug 30, 4:56 PM EDTSpecial Weather StatementRNKCity of Danville34 min
Aug 30, 5:25 PM EDTSpecial Weather StatementRNKCity of Danville35 min
Aug 30, 5:51 PM EDTSpecial Weather StatementRNKWythe24 min
Aug 30, 5:58 PM EDTSpecial Weather StatementRNKCity of Danville47 min
Aug 30, 6:13 PM EDTSpecial Weather StatementRNKHalifax32 min
Aug 30, 6:56 PM EDTAreal Flood AdvisoryRNKGrayson, Smyth, Wythe2 hr
Aug 30, 7:11 PM EDTSpecial Weather StatementRNKCity of Martinsville34 min
Aug 30, 7:37 PM EDTSpecial Weather StatementRNKFloyd38 min
Aug 30, 7:39 PM EDTAreal Flood AdvisoryRNKPittsylvania, City of Danville3 hr
Aug 30, 7:44 PM EDTSpecial Weather StatementRNKCity of Danville31 min
Aug 30, 7:45 PM EDTSpecial Weather StatementRNKCarroll30 min

Nearby

Severe Thunderstorm Warnings in Virginia, 2021Every 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.