Alert archive / Virginia / Severe Thunderstorm Warnings in 2024

Severe Thunderstorm Warning 103, NWS Blacksburg, VA

July 17, 20244 counties in Virginia

NWS Blacksburg, VA issued this severe thunderstorm warning at Jul 17, 2024, 6:42 PM EDT for 4 counties in Virginia. It was in force for 63 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: Jul 17, 2024, 6:42 PM EDT (22:42 UTC)
Expired: Jul 17, 2024, 7:45 PM EDT
In force: 63 min
Issued by: NWS Blacksburg, VA
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Appomattox County, VA, Campbell County, VA, Charlotte County, VA, Halifax County, VA

The radar

The Roanoke radar (KFCX), 124 km from the middle of the area, began a volume at 22:42 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
Jul 17, 2:38 PM EDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Roanoke, VA (KRNK), launched 12:00Z, 10.7 hours before the alert went out and 57 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: 365 J/kg
Mixed-layer CIN: -52 J/kg
Mixed-layer LCL: 811 m above ground
0-6 km bulk shear: 22 kt
0-1 km storm-relative helicity: 5 m²/s²
0-3 km storm-relative helicity: 7 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 Jul 17, 6:08 PM EDT, 34 minutes earlier.

Area forecast discussion, Jul 17, 6:08 PM EDT, 34 minutes before

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Hazardous weather outlook, Jul 17, 6:05 PM EDT, 37 minutes before

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In the hours before

Local storm report, Jul 17, 5:18 PM EDT, 1 hour 24 minutes before

Preliminary Local Storm Report
National Weather Service Blacksburg VA
518 PM EDT Wed Jul 17 2024

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0507 PM     Tstm Wnd Dmg     3 N Lynchburg Airport   37.37N 79.19W
07/17/2024                   City of Lynchburg  VA   Public

            Two trees and large branches down.

&&

WP

Local storm report, Jul 17, 5:48 PM EDT, 54 minutes before

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Local storm report, Jul 17, 5:51 PM EDT, 51 minutes before

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Local storm report, Jul 17, 5:54 PM EDT, 48 minutes before

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Special weather statement, Jul 17, 6:15 PM EDT, 27 minutes before

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Special weather statement, Jul 17, 6:36 PM EDT, 6 minutes 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
Jul 16, 8:24 PM EDT	Severe Thunderstorm Warning	RNK	Rockbridge, City of Buena Vista, City of Lexington	66 min
Jul 16, 9:11 PM EDT	Special Weather Statement	RNK	Montgomery, City of Radford	49 min
Jul 16, 9:21 PM EDT	Special Weather Statement	RNK	Tazewell	39 min
Jul 16, 9:26 PM EDT	Special Weather Statement	RNK	Amherst	49 min
Jul 17, 2:12 PM EDT	Severe Thunderstorm Warning	RNK	Alleghany, Bath	63 min
Jul 17, 2:51 PM EDT	Special Weather Statement	RNK	Bath	24 min
Jul 17, 3:13 PM EDT	Special Weather Statement	RNK	Bland, Tazewell	32 min
Jul 17, 3:19 PM EDT	Special Weather Statement	RNK	Craig	26 min
Jul 17, 3:21 PM EDT	Special Weather Statement	RNK	Rockbridge	24 min
Jul 17, 3:44 PM EDT	Special Weather Statement	RNK	Rockbridge, City of Buena Vista, City of Lexington	31 min
Jul 17, 4:00 PM EDT	Special Weather Statement	RNK	Botetourt	30 min
Jul 17, 4:17 PM EDT	Severe Thunderstorm Warning	RNK	Amherst, Appomattox, Bedford, Botetourt, Campbell, Rockbridge and 1 more	58 min
Jul 17, 4:25 PM EDT	Areal Flood Advisory	RNK	Carroll, Floyd, Patrick	73 min
Jul 17, 4:35 PM EDT	Special Weather Statement	RNK	Buckingham	40 min
Jul 17, 4:45 PM EDT	Areal Flood Advisory	RNK	Amherst, Bedford, Campbell, City of Lynchburg	2 hr
Jul 17, 5:00 PM EDT	Severe Thunderstorm Warning	RNK	Buckingham	60 min
Jul 17, 5:09 PM EDT	Severe Thunderstorm Warning	RNK	Amherst, Appomattox, Bedford, Campbell, Franklin, City of Lynchburg	66 min
Jul 17, 5:45 PM EDT	Severe Thunderstorm Warning	RNK	Appomattox, Campbell, Charlotte, Halifax, Pittsylvania	60 min
Jul 17, 5:47 PM EDT	Severe Thunderstorm Warning	RNK	Appomattox, Buckingham	58 min
Jul 17, 6:15 PM EDT	Special Weather Statement	RNK	Tazewell	30 min
Jul 17, 6:36 PM EDT	Special Weather Statement	RNK	City of Danville	24 min
Jul 17, 6:51 PM EDT	Special Weather Statement	RNK	Bland, Grayson, Smyth, Tazewell, Wythe, City of Galax	54 min
Jul 17, 7:00 PM EDT	Special Weather Statement	RNK	City of Danville	60 min
Jul 17, 7:26 PM EDT	Severe Thunderstorm Warning	RNK	Halifax, Pittsylvania	64 min
Jul 17, 7:37 PM EDT	Severe Thunderstorm Warning	RNK	Charlotte, Halifax	38 min
Jul 17, 7:43 PM EDT	Special Weather Statement	RNK	Carroll, Wythe	32 min
Jul 17, 7:49 PM EDT	Areal Flood Advisory	RNK	Appomattox, Charlotte	116 min
Jul 17, 3:25 PM EDT	Special Weather Statement	RNK	Surry	35 min
Jul 17, 1:05 PM EDT	Special Weather Statement	RNK	Greenbrier	25 min
Jul 17, 1:31 PM EDT	Severe Thunderstorm Warning	RNK	Greenbrier	59 min

Nearby

Severe Thunderstorm Warnings in Virginia, 2024 Every severe thunderstorm warning in 2024

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.