Alert archive / Pennsylvania / Winter Storm Warnings in 2024
Winter Storm Warning 10, NWS State College, PA
NWS State College, PA issued this winter storm warning at Dec 4, 2024, 4:21 AM EST for Cambria County, Clearfield County, Somerset County, Pennsylvania. It took effect at Dec 4, 2024, 4:00 PM EST. It was in force for 35 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 4, 2024, 4:21 AM EST (09:21 UTC)
- In effect from
- Dec 4, 2024, 4:00 PM EST
- Expired
- Dec 6, 2024, 2:31 AM EST
- In force
- 35 hr
- Issued by
- NWS State College, PA
Counties Cambria County, PA, Clearfield County, PA, Somerset County, PA
The radar
The State College radar (KCCX), 79 km from the middle of the area, began a volume at 09:23 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 00:00Z, 9.4 hours before the alert went out and 116 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 584 m above ground
- 0-6 km bulk shear
- 74 kt
- 0-1 km storm-relative helicity
- 201 m²/s²
- 0-3 km storm-relative helicity
- 190 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 State College, PA wrote its last area forecast discussion before this winter storm warning went out at Dec 3, 6:35 PM EST, 9 hours 46 minutes earlier.
Area forecast discussion, Dec 3, 6:35 PM EST, 9 hours 46 minutes before
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</html>The office that day
Everything else NWS State College, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 4, 4:21 AM EST | Lake Effect Snow Warning | CTP | Cameron, Elk, McKean, Potter, Warren | 64 hr |
| Dec 4, 4:21 AM EST | Winter Weather Advisory | CTP | Cambria, Cameron, Centre, Clearfield, Clinton, Elk and 5 more | 57 hr |
Nearby
Winter Storm Warnings in Pennsylvania, 2024Every winter storm 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.