Alert archive / West Virginia / Winter Storm Warnings in 2025

Winter Storm Warning 9, NWS Pittsburgh, PA

December 30, 2025Fayette County, Westmoreland County, Pennsylvania; Monongalia County, Preston County, Tucker County, West Virginia

NWS Pittsburgh, PA issued this winter storm warning at Dec 30, 2025, 1:04 PM EST for Fayette County, Westmoreland County, Pennsylvania; Monongalia County, Preston County, Tucker County, West Virginia. It took effect at Dec 31, 2025, 1:00 PM EST. It was in force for 21 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Dec 30, 2025, 1:04 PM EST (18:04 UTC)
In effect from: Dec 31, 2025, 1:00 PM EST
Expired: Jan 1, 2026, 10:00 AM EST
In force: 21 hr
Issued by: NWS Pittsburgh, PA

Counties Fayette County, PA, Westmoreland County, PA, Monongalia County, WV, Preston County, WV, Tucker County, WV

The radar

The Pittsburgh radar (KPBZ), 104 km from the middle of the area, began a volume at 18:05 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, 6.1 hours before the alert went out and 277 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 903 m above ground
0-6 km bulk shear: 41 kt
0-1 km storm-relative helicity: -103 m²/s²
0-3 km storm-relative helicity: -79 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 winter storm warning 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 winter storm warning went out at Dec 30, 6:31 AM EST, 6 hours 33 minutes earlier.

Area forecast discussion, Dec 30, 6:31 AM EST, 6 hours 33 minutes before

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Hazardous weather outlook, Dec 30, 4:04 AM EST, 9 hours before

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In the hours before

Local storm report, Dec 30, 10:32 AM EST, 2 hours 32 minutes before

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Local storm report, Dec 30, 10:34 AM EST, 2 hours 30 minutes before

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Local storm report, Dec 30, 10:35 AM EST, 2 hours 29 minutes before

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Local storm report, Dec 30, 11:00 AM EST, 2 hours 4 minutes before

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Local storm report, Dec 30, 12:29 PM EST, 35 minutes before

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Special weather statement, Dec 30, 12:36 PM EST, 28 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
Dec 29, 10:17 PM EST	Snow Squall Warning	PBZ	Armstrong, Butler, Indiana, Lawrence, Mercer	58 min
Dec 29, 11:34 PM EST	Snow Squall Warning	PBZ	Allegheny, Beaver, Washington, Westmoreland	56 min
Dec 30, 1:24 AM EST	Snow Squall Warning	PBZ	Allegheny, Armstrong, Indiana, Westmoreland	53 min
Dec 30, 9:01 AM EST	Snow Squall Warning	PBZ	Allegheny, Fayette, Washington, Westmoreland	44 min
Dec 30, 10:03 AM EST	Special Weather Statement	PBZ	Washington, Westmoreland	87 min
Dec 30, 12:36 PM EST	Special Weather Statement	PBZ	Allegheny, Beaver, Westmoreland	84 min
Dec 30, 1:04 PM EST	Winter Weather Advisory	PBZ	Allegheny, Armstrong, Beaver, Butler, Clarion, Fayette and 9 more	45 hr

Nearby

Winter Storm Warnings in West Virginia, 2025 Winter Storm Warnings in Pennsylvania, 2025 Every winter storm warning in 2025

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.