Alert archive / Virginia / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 196, NWS Blacksburg, VA

August 9, 2019Buckingham County, Virginia

NWS Blacksburg, VA issued this severe thunderstorm warning at Aug 9, 2019, 5:47 PM EDT for Buckingham County, Virginia. It was in force for 26 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Aug 9, 2019, 5:47 PM EDT (21:47 UTC)
Expired: Aug 9, 2019, 6:13 PM EDT
In force: 26 min
Issued by: NWS Blacksburg, VA
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Buckingham County, VA

The radar

The Norfolk radar (KAKQ), 150 km from the middle of the area, began a volume at 21:46 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

Roanoke, VA (KRNK), launched 12:00Z, 9.8 hours before the alert went out and 95 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: 127 J/kg
Mixed-layer CIN: -60 J/kg
Mixed-layer LCL: 815 m above ground
0-6 km bulk shear: 41 kt
0-1 km storm-relative helicity: 122 m²/s²
0-3 km storm-relative helicity: 146 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Blacksburg, VA wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 9, 4:41 PM EDT, 1 hour 6 minutes earlier.

Area forecast discussion, Aug 9, 4:41 PM EDT, 1 hour 6 minutes before

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Hazardous weather outlook, Aug 9, 4:16 PM EDT, 1 hour 31 minutes before

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In the hours before

Special weather statement, Aug 9, 3:17 PM EDT, 2 hours 30 minutes before

Special Weather Statement
National Weather Service BLACKSBURG VA
Issued by National Weather Service Raleigh NC
317 PM EDT Fri Aug 9 2019

VAZ034-044-045-092015-
Campbell-Bedford-Pittsylvania-
317 PM EDT Fri Aug 9 2019

...A STRONG THUNDERSTORM WILL AFFECT BEDFORD...CAMPBELL AND
PITTSYLVANIA...

Until 415 PM EDT.

At 317 PM EDT, a strong thunderstorm was located near Timberlake,
moving southeast at 30 mph.

Wind gusts up to 50 mph and pea size hail are possible with this
storm.

Locations impacted include...
Lynchburg...
Altavista...
Hurt...
Brookneal...
and Rustburg.

This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

LAT...LON 3703 7893 3705 7897 3703 7901 3704 7902
      3704 7905 3706 7909 3698 7912 3691 7932
      3730 7952 3739 7934 3719 7883 3718 7883
TIME...MOT...LOC 1917Z 315DEG 24KT 3730 7931

22

Special weather statement, Aug 9, 3:38 PM EDT, 2 hours 9 minutes before

Special Weather Statement
National Weather Service BLACKSBURG VA
Issued by National Weather Service Raleigh NC
338 PM EDT Fri Aug 9 2019

VAZ022-023-033-034-092030-
Botetourt-Franklin-Roanoke-Bedford-
338 PM EDT Fri Aug 9 2019

...A STRONG THUNDERSTORM WILL AFFECT BOTETOURT...FRANKLIN...ROANOKE
AND BEDFORD CUNTIES...INCLUDING THE CITY OF ROANOKE.
...

Until 430 PM EDT.

At 334 PM EDT, a strong thunderstorm was located over Cloverdale,
moving southeast at 30 mph.

Winds in excess of 40 mph and pea size hail are possible with this
storm.

Locations impacted include...
Roanoke...
Salem...
Vinton...
Bedford...
and Rocky Mount.

This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

LAT...LON 3726 7932 3706 7944 3706 7949 3703 7948
      3702 7946 3701 7948 3702 7950 3705 7954
      3704 7956 3703 7956 3704 7960 3697 7961
      3693 7983 3732 8006 3746 7993
TIME...MOT...LOC 1934Z 308DEG 27KT 3735 7993

22

Special weather statement, Aug 9, 3:46 PM EDT, 2 hours 1 minute before

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Special weather statement, Aug 9, 3:49 PM EDT, 1 hour 58 minutes before

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Local storm report, Aug 9, 3:58 PM EDT, 1 hour 49 minutes before

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Special weather statement, Aug 9, 5:46 PM EDT, 1 minute before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 9, 2:16 PM EDT	Severe Thunderstorm Warning	RNK	Alleghany, Botetourt, Craig	59 min
Aug 9, 2:49 PM EDT	Severe Thunderstorm Warning	RNK	Alleghany	56 min
Aug 9, 3:17 PM EDT	Special Weather Statement	RNK	Campbell	58 min
Aug 9, 3:38 PM EDT	Special Weather Statement	RNK	Bedford, City of Roanoke	52 min
Aug 9, 3:46 PM EDT	Special Weather Statement	RNK	Craig, Giles	59 min
Aug 9, 4:02 PM EDT	Severe Thunderstorm Warning	RNK	Bedford, Campbell, Franklin, Pittsylvania	58 min
Aug 9, 4:03 PM EDT	Severe Thunderstorm Warning	RNK	Craig, Giles	38 min
Aug 9, 4:49 PM EDT	Severe Thunderstorm Warning	RNK	Halifax, Pittsylvania	56 min
Aug 9, 5:31 PM EDT	Severe Thunderstorm Warning	RNK	Craig, Giles	33 min
Aug 9, 5:46 PM EDT	Special Weather Statement	RNK	Halifax	29 min
Aug 9, 7:28 PM EDT	Severe Thunderstorm Warning	RNK	Bland, Giles, Pulaski	62 min
Aug 8, 11:27 PM EDT	Special Weather Statement	RNK	Greenbrier	63 min
Aug 9, 1:35 PM EDT	Special Weather Statement	RNK	Greenbrier	25 min
Aug 9, 3:49 PM EDT	Special Weather Statement	RNK	Greenbrier	56 min
Aug 9, 4:38 PM EDT	Severe Thunderstorm Warning	RNK	Greenbrier, Summers	67 min
Aug 9, 6:52 PM EDT	Special Weather Statement	RNK	Mercer	53 min

Nearby

Severe Thunderstorm Warnings in Virginia, 2019 Every severe thunderstorm warning in 2019

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.