Alert archive / Pennsylvania / Snow Squall Warnings in 2024

Snow Squall Warning 2, NWS Pittsburgh, PA

January 14, 202410 counties in Pennsylvania; Hancock County, West Virginia

NWS Pittsburgh, PA issued this snow squall warning at Jan 14, 2024, 6:48 AM EST for 10 counties in Pennsylvania; Hancock County, West Virginia. It was in force for 42 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
Jan 14, 2024, 6:48 AM EST (11:48 UTC)
Expired
Jan 14, 2024, 7:30 AM EST
In force
42 min
Issued by
NWS Pittsburgh, PA
Area
Storm-based polygon

Counties Allegheny County, PA, Armstrong County, PA, Beaver County, PA, Butler County, PA, Clarion County, PA, Forest County, PA, Jefferson County, PA, Lawrence County, PA, Venango County, PA, Washington County, PA, Hancock County, WV

The radar

The Pittsburgh radar (KPBZ), 51 km from the middle of the area, began a volume at 11:49 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

Buffalo Intl Airport, NY (KBUF), launched 00:00Z, 11.8 hours before the alert went out and 246 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-pSkew-T log-p diagram, Buffalo Intl Airport, NY at 00:00Z on 2024-01-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Buffalo Intl Airport, NY at 00:00Z on 2024-01-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 20 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
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
777 m above ground
0-6 km bulk shear
14 kt
0-1 km storm-relative helicity
20 m²/s²
0-3 km storm-relative helicity
34 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 14, 4:33 AM ESTSpecial Weather StatementPBZAllegheny, Armstrong, Beaver, Butler, Clarion, Forest and 5 more87 min
Jan 14, 5:20 AM ESTSpecial Weather StatementPBZFayette, Greene, Washington, Westmoreland40 min
Jan 14, 6:00 AM ESTSpecial Weather StatementPBZAllegheny, Armstrong, Beaver, Butler, Clarion, Fayette and 9 more90 min
Jan 14, 6:31 AM ESTSnow Squall WarningPBZArmstrong, Indiana, Jefferson, Westmoreland29 min
Jan 14, 7:02 AM ESTSnow Squall WarningPBZIndiana, Jefferson13 min
Jan 14, 7:06 AM ESTSnow Squall WarningPBZFayette, Greene, Indiana, Washington, Westmoreland39 min
Jan 14, 7:25 AM ESTSnow Squall WarningPBZAllegheny, Armstrong, Butler, Clarion, Indiana, Jefferson and 1 more50 min
Jan 14, 7:42 AM ESTSnow Squall WarningPBZFayette, Indiana, Westmoreland48 min
Jan 14, 8:12 AM ESTSnow Squall WarningPBZArmstrong, Indiana, Jefferson48 min
Jan 14, 12:52 AM ESTWind Chill AdvisoryPBZTucker27 hr

Nearby

Snow Squall Warnings in Pennsylvania, 2024Snow Squall Warnings in West Virginia, 2024Every snow squall 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.