Alert archive / Pennsylvania / Snow Squall Warnings in 2022

Snow Squall Warning 33, NWS State College, PA

November 18, 20224 counties in Pennsylvania

NWS State College, PA issued this snow squall warning at Nov 18, 2022, 4:16 PM EST for 4 counties in Pennsylvania. It was in force for 59 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
Nov 18, 2022, 4:16 PM EST (21:16 UTC)
Expired
Nov 18, 2022, 5:15 PM EST
In force
59 min
Issued by
NWS State College, PA
Area
Storm-based polygon

Counties Huntingdon County, PA, Juniata County, PA, Mifflin County, PA, Snyder County, PA

The radar

The State College radar (KCCX), 56 km from the middle of the area, began a volume at 21:19 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

Pittsburgh, PA (KPIT), launched 12:00Z, 9.3 hours before the alert went out and 219 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, Pittsburgh, PA at 12:00Z on 2022-11-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Pittsburgh, PA at 12:00Z on 2022-11-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 185 square meters per square second.1939587897117136156Sfc1 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
762 m above ground
0-6 km bulk shear
81 kt
0-1 km storm-relative helicity
185 m²/s²
0-3 km storm-relative helicity
218 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The office that day

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

IssuedProductOfficeCountiesLasted
Nov 18, 1:58 PM ESTSnow Squall WarningCTPClearfield47 min
Nov 18, 2:23 PM ESTSnow Squall WarningCTPCameron, Clearfield, Clinton, Elk52 min
Nov 18, 2:41 PM ESTSnow Squall WarningCTPCambria, Clearfield49 min
Nov 18, 3:06 PM ESTSnow Squall Warning Significant damage threatCTPCameron, Centre, Clearfield, Clinton54 min
Nov 18, 3:26 PM ESTSnow Squall Warning Significant damage threatCTPBedford, Blair, Cambria, Huntingdon, Somerset64 min
Nov 18, 3:57 PM ESTSnow Squall Warning Significant damage threatCTPCentre, Clinton, Lycoming, Union93 min
Nov 18, 4:30 PM ESTSnow Squall Warning Significant damage threatCTPBedford, Somerset45 min
Nov 18, 5:19 PM ESTSnow Squall WarningCTPColumbia, Lycoming, Montour, Northumberland, Snyder, Union41 min
Nov 18, 5:25 PM ESTSpecial Weather StatementCTPSullivan65 min
Nov 18, 5:28 PM ESTSpecial Weather StatementCTPJuniata, Perry62 min
Nov 18, 5:56 PM ESTSpecial Weather StatementCTPNorthumberland34 min
Nov 18, 6:03 PM ESTSpecial Weather StatementCTPColumbia27 min
Nov 18, 6:26 PM ESTSnow Squall WarningCTPSchuylkill49 min

Nearby

Snow Squall Warnings in Pennsylvania, 2022Every snow squall warning in 2022

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.