Alert archive / West Virginia / Special Weather Statements in 2021

Special Weather Statement, NWS Pittsburgh, PA

August 12, 2021Preston County, West Virginia

NWS Pittsburgh, PA issued this special weather statement at Aug 12, 2021, 11:20 PM EDT for Preston County, West Virginia. It was in force for 25 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Aug 12, 2021, 11:20 PM EDT (03:20 UTC)
Expired: Aug 12, 2021, 11:45 PM EDT
In force: 25 min
Issued by: NWS Pittsburgh, PA
Hail: 0.25 in
Wind: 40

County Preston County, WV

The radar

The Pittsburgh radar (KPBZ), 119 km from the middle of the area, began a volume at 03:21 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

Washington/Dulle, VA (KIAD), launched 00:00Z, 3.3 hours before the alert went out and 222 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: 2808 J/kg
Mixed-layer CIN: -24 J/kg
Mixed-layer LCL: 1565 m above ground
0-6 km bulk shear: 15 kt
0-1 km storm-relative helicity: 38 m²/s²
0-3 km storm-relative helicity: 153 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 4.9

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

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

NWS Pittsburgh, PA wrote its last area forecast discussion before this special weather statement went out at Aug 12, 9:58 PM EDT, 1 hour 22 minutes earlier.

Area forecast discussion, Aug 12, 9:58 PM EDT, 1 hour 22 minutes before

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Hazardous weather outlook, Aug 12, 9:58 PM EDT, 1 hour 22 minutes before

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In the hours before

Local storm report, Aug 12, 10:11 PM EDT, 1 hour 9 minutes before

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Local storm report, Aug 12, 10:17 PM EDT, 1 hour 3 minutes before

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Local storm report, Aug 12, 10:24 PM EDT, 56 minutes before

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Special weather statement, Aug 12, 10:27 PM EDT, 53 minutes before

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Local storm report, Aug 12, 10:29 PM EDT, 51 minutes before

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Special weather statement, Aug 12, 11:20 PM EDT, 0 minutes before

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The office that day

Everything else NWS Pittsburgh, PA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Aug 12, 8:36 PM EDT	Flash Flood Warning	PBZ	Allegheny, Armstrong, Beaver, Butler, Washington, Westmoreland	3 hr
Aug 12, 8:39 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Beaver, Washington	51 min
Aug 12, 8:58 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Fayette, Indiana, Washington, Westmoreland	41 min
Aug 12, 9:57 PM EDT	Flash Flood Warning	PBZ	Fayette, Washington, Westmoreland	2 hr
Aug 12, 10:10 PM EDT	Special Weather Statement	PBZ	Fayette	35 min
Aug 12, 10:32 PM EDT	Areal Flood Warning	PBZ	Allegheny, Washington, Westmoreland	3 hr
Aug 12, 11:43 PM EDT	Areal Flood Warning	PBZ	Allegheny, Armstrong, Beaver, Butler, Washington	92 min
Aug 13, 12:17 AM EDT	Areal Flood Warning	PBZ	Fayette, Washington, Westmoreland	57 min
Aug 13, 5:58 PM EDT	Special Weather Statement	PBZ	Greene	32 min
Aug 13, 6:19 PM EDT	Special Weather Statement	PBZ	Greene, Washington	26 min
Aug 13, 6:29 PM EDT	Special Weather Statement	PBZ	Beaver	31 min
Aug 13, 6:44 PM EDT	Special Weather Statement	PBZ	Beaver	31 min
Aug 13, 6:47 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Beaver, Butler	43 min
Aug 13, 6:50 PM EDT	Special Weather Statement	PBZ	Westmoreland	25 min
Aug 13, 6:56 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Beaver, Washington	49 min
Aug 13, 7:00 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Beaver, Butler, Lawrence	45 min
Aug 13, 7:01 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Beaver, Butler	44 min
Aug 13, 7:02 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Fayette, Washington, Westmoreland	28 min
Aug 13, 7:04 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny	26 min
Aug 13, 7:12 PM EDT	Special Weather Statement	PBZ	Butler	33 min
Aug 13, 7:21 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny	39 min
Aug 13, 7:22 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Beaver, Washington	53 min
Aug 13, 7:27 PM EDT	Severe Thunderstorm Warning	PBZ	Armstrong, Butler, Clarion	48 min
Aug 13, 7:29 PM EDT	Severe Thunderstorm Warning	PBZ	Fayette, Westmoreland	46 min
Aug 13, 7:37 PM EDT	Severe Thunderstorm Warning	PBZ	Armstrong, Indiana, Westmoreland	53 min
Aug 13, 7:42 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Armstrong, Westmoreland	48 min
Aug 13, 7:45 PM EDT	Flash Flood Warning	PBZ	Allegheny	104 min
Aug 13, 7:45 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Beaver, Butler, Lawrence	30 min
Aug 13, 7:52 PM EDT	Special Weather Statement	PBZ	Clarion, Forest, Venango	23 min
Aug 12, 10:27 PM EDT	Special Weather Statement	PBZ	Monongalia	48 min
Aug 13, 5:04 PM EDT	Special Weather Statement	PBZ	Wetzel	41 min
Aug 13, 5:39 PM EDT	Special Weather Statement	PBZ	Marshall	36 min
Aug 13, 6:25 PM EDT	Special Weather Statement	PBZ	Hancock	35 min
Aug 13, 6:39 PM EDT	Severe Thunderstorm Warning	PBZ	Brooke, Ohio	27 min
Aug 13, 7:53 PM EDT	Special Weather Statement	PBZ	Tucker	37 min
Aug 12, 9:00 PM EDT	Severe Thunderstorm Warning	PBZ	Carroll, Columbiana, Harrison, Jefferson, Tuscarawas	60 min
Aug 12, 11:26 PM EDT	Special Weather Statement	PBZ	Noble	34 min
Aug 12, 11:29 PM EDT	Special Weather Statement	PBZ	Harrison	46 min
Aug 13, 4:51 PM EDT	Special Weather Statement	PBZ	Muskingum	39 min
Aug 13, 5:07 PM EDT	Special Weather Statement	PBZ	Noble	38 min
Aug 13, 5:13 PM EDT	Severe Thunderstorm Warning	PBZ	Monroe, Noble	47 min
Aug 13, 5:19 PM EDT	Special Weather Statement	PBZ	Columbiana	26 min
Aug 13, 5:24 PM EDT	Severe Thunderstorm Warning	PBZ	Columbiana	39 min
Aug 13, 5:29 PM EDT	Severe Thunderstorm Warning	PBZ	Noble	31 min
Aug 13, 5:36 PM EDT	Special Weather Statement	PBZ	Muskingum	39 min
Aug 13, 5:45 PM EDT	Severe Thunderstorm Warning	PBZ	Guernsey, Muskingum	45 min
Aug 13, 5:56 PM EDT	Severe Thunderstorm Warning	PBZ	Belmont, Guernsey, Noble	34 min
Aug 13, 6:13 PM EDT	Severe Thunderstorm Warning	PBZ	Belmont, Guernsey, Harrison, Jefferson	47 min

Nearby

Special Weather Statements in West Virginia, 2021 Every special weather statement 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.