Alert archive / Virginia / Severe Thunderstorm Warnings in 2024

Severe Thunderstorm Warning 30, NWS Blacksburg, VA

April 15, 2024Bland County, Giles County, Tazewell County, Virginia; Mercer County, West Virginia

NWS Blacksburg, VA issued this severe thunderstorm warning at Apr 15, 2024, 9:31 PM EDT for Bland County, Giles County, Tazewell County, Virginia; Mercer County, West Virginia. It was in force for 36 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: Apr 15, 2024, 9:31 PM EDT (01:31 UTC)
Expired: Apr 15, 2024, 10:07 PM EDT
In force: 36 min
Issued by: NWS Blacksburg, VA
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Bland County, VA, Giles County, VA, Tazewell County, VA, Mercer County, WV

The radar

The Roanoke radar (KFCX), 79 km from the middle of the area, began a volume at 01:31 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
Apr 15, 1:50 PM EDT	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 00:00Z, 1.5 hours before the alert went out and 337 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: 595 J/kg
Mixed-layer CIN: -41 J/kg
Mixed-layer LCL: 1619 m above ground
0-6 km bulk shear: 31 kt
0-1 km storm-relative helicity: 53 m²/s²
0-3 km storm-relative helicity: 211 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 1.5

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 Apr 15, 7:37 PM EDT, 1 hour 54 minutes earlier.

Area forecast discussion, Apr 15, 7:37 PM EDT, 1 hour 54 minutes before

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Hazardous weather outlook, Apr 15, 8:20 PM EDT, 1 hour 11 minutes before

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In the hours before

Special weather statement, Apr 15, 6:33 PM EDT, 2 hours 58 minutes before

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Special weather statement, Apr 15, 6:48 PM EDT, 2 hours 43 minutes before

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Special weather statement, Apr 15, 7:00 PM EDT, 2 hours 31 minutes before

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Special weather statement, Apr 15, 7:10 PM EDT, 2 hours 21 minutes before

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Special weather statement, Apr 15, 7:16 PM EDT, 2 hours 15 minutes before

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Special weather statement, Apr 15, 9:23 PM EDT, 8 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
Apr 15, 10:46 PM EDT	Special Weather Statement	RNK	Bland	29 min
Apr 15, 11:17 PM EDT	Special Weather Statement	RNK	Bland	28 min
Apr 16, 12:59 AM EDT	Special Weather Statement	RNK	Franklin	31 min
Apr 16, 2:05 PM EDT	Severe Thunderstorm Warning	RNK	Grayson	55 min
Apr 16, 2:06 PM EDT	Areal Flood Advisory	RNK	Grayson	9 min
Apr 16, 2:15 PM EDT	Flash Flood Warning	RNK	Grayson	5 hr
Apr 16, 2:15 PM EDT	Special Weather Statement	RNK	Grayson	30 min
Apr 16, 2:37 PM EDT	Severe Thunderstorm Warning	RNK	Wythe	19 min
Apr 16, 3:16 PM EDT	Special Weather Statement	RNK	Tazewell	29 min
Apr 16, 3:54 PM EDT	Special Weather Statement	RNK	Tazewell	36 min
Apr 16, 3:55 PM EDT	Severe Thunderstorm Warning	RNK	Alleghany	35 min
Apr 16, 4:11 PM EDT	Areal Flood Advisory	RNK	Tazewell	96 min
Apr 16, 5:31 PM EDT	Special Weather Statement	RNK	Craig	29 min
Apr 16, 1:19 PM EDT	Special Weather Statement	RNK	Ashe	26 min
Apr 16, 1:52 PM EDT	Special Weather Statement	RNK	Watauga	23 min
Apr 16, 2:00 PM EDT	Special Weather Statement	RNK	Ashe	30 min
Apr 16, 2:28 PM EDT	Areal Flood Advisory	RNK	Watauga	3 hr
Apr 15, 9:23 PM EDT	Special Weather Statement	RNK	Greenbrier	37 min
Apr 16, 2:53 PM EDT	Special Weather Statement	RNK	Greenbrier	37 min
Apr 16, 3:21 PM EDT	Severe Thunderstorm Warning	RNK	Greenbrier	54 min
Apr 16, 3:36 PM EDT	Areal Flood Advisory	RNK	Greenbrier	3 hr
Apr 16, 3:39 PM EDT	Special Weather Statement	RNK	Greenbrier	36 min
Apr 16, 4:29 PM EDT	Special Weather Statement	RNK	Mercer, Summers	31 min

Nearby

Severe Thunderstorm Warnings in Virginia, 2024 Severe Thunderstorm Warnings in West 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.