Alert archive / Virginia / Severe Thunderstorm Warnings in 2013

Severe Thunderstorm Warning 103, NWS Blacksburg, VA

June 26, 2013Buckingham County, Virginia

NWS Blacksburg, VA issued this severe thunderstorm warning at Jun 26, 2013, 5:00 PM EDT for Buckingham County, Virginia. It was in force for 60 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: Jun 26, 2013, 5:00 PM EDT (21:00 UTC)
Expired: Jun 26, 2013, 6:00 PM EDT
In force: 60 min
Issued by: NWS Blacksburg, VA
Area: Storm-based polygon

County Buckingham County, VA

The radar

The Norfolk radar (KAKQ), 150 km from the middle of the area, began a volume at 21:00 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 watch it was issued in

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

Issued	Product	Office	Lasted
Jun 26, 2:55 PM EDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Roanoke, VA (KRNK), launched 12:00Z, 9.0 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: 926 J/kg
Mixed-layer CIN: -28 J/kg
Mixed-layer LCL: 608 m above ground
0-6 km bulk shear: 6 kt
0-1 km storm-relative helicity: -5 m²/s²
0-3 km storm-relative helicity: 53 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 Jun 26, 4:21 PM EDT, 39 minutes earlier.

Area forecast discussion, Jun 26, 4:21 PM EDT, 39 minutes before

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Hazardous weather outlook, Jun 26, 4:56 PM EDT, 4 minutes before

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In the hours before

Local storm report, Jun 26, 4:39 PM EDT, 21 minutes before

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Local storm report, Jun 26, 4:41 PM EDT, 19 minutes before

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Local storm report, Jun 26, 4:45 PM EDT, 15 minutes before

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Local storm report, Jun 26, 4:46 PM EDT, 14 minutes before

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Local storm report, Jun 26, 4:49 PM EDT, 11 minutes before

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Local storm report, Jun 26, 4:59 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
Jun 26, 1:36 PM EDT	Special Weather Statement	RNK	Giles, Pulaski	54 min
Jun 26, 1:57 PM EDT	Special Weather Statement	RNK	Craig, Roanoke, City of Salem	48 min
Jun 26, 2:09 PM EDT	Severe Thunderstorm Warning	RNK	Craig, Floyd, Giles, Montgomery, Pulaski, Roanoke and 1 more	66 min
Jun 26, 2:16 PM EDT	Special Weather Statement	RNK	Patrick, City of Galax	59 min
Jun 26, 2:37 PM EDT	Areal Flood Advisory	RNK	Botetourt, Craig, Floyd, Franklin, Giles, Montgomery and 5 more	3 hr
Jun 26, 2:50 PM EDT	Severe Thunderstorm Warning	RNK	Bedford, Botetourt, Floyd, Franklin, Roanoke, City of Roanoke and 1 more	55 min
Jun 26, 3:24 PM EDT	Severe Thunderstorm Warning	RNK	Henry, Patrick, City of Martinsville	66 min
Jun 26, 3:44 PM EDT	Severe Thunderstorm Warning	RNK	Bedford, Campbell, Franklin, Henry, Pittsylvania	61 min
Jun 26, 4:20 PM EDT	Severe Thunderstorm Warning	RNK	Henry, Pittsylvania, City of Danville	70 min
Jun 26, 4:44 PM EDT	Severe Thunderstorm Warning	RNK	Amherst, Appomattox, Campbell	46 min
Jun 26, 2:42 PM EDT	Special Weather Statement	RNK	Wilkes	63 min

Nearby

Severe Thunderstorm Warnings in Virginia, 2013 Every severe thunderstorm warning in 2013

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.