Alert archive / Pennsylvania / Winter Weather Advisories in 2021
Winter Weather Advisory 14, NWS State College, PA
NWS State College, PA issued this winter weather advisory at Feb 14, 2021, 3:46 PM EST for 29 counties in Pennsylvania. It took effect at Feb 15, 2021, 7:00 AM EST. It was in force for 23 hr.
The area
The counties it named.
The facts
- Issued
- Feb 14, 2021, 3:46 PM EST (20:46 UTC)
- In effect from
- Feb 15, 2021, 7:00 AM EST
- Expired
- Feb 16, 2021, 6:11 AM EST
- In force
- 23 hr
- Issued by
- NWS State College, PA
All 29 counties
Adams County, PA, Bedford County, PA, Blair County, PA, Cambria County, PA, Cameron County, PA, Centre County, PA, Clearfield County, PA, Clinton County, PA, Columbia County, PA, Cumberland County, PA, Dauphin County, PA, Elk County, PA, Franklin County, PA, Fulton County, PA, Huntingdon County, PA, Juniata County, PA, Lancaster County, PA, Lebanon County, PA, Lycoming County, PA, Mifflin County, PA, Montour County, PA, Northumberland County, PA, Perry County, PA, Schuylkill County, PA, Snyder County, PA, Somerset County, PA, Sullivan County, PA, Union County, PA, York County, PA
The radar
The State College radar (KCCX), 59 km from the middle of the area, began a volume at 20:45 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 12:00Z, 8.8 hours before the alert went out and 185 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
- 532 m above ground
- 0-6 km bulk shear
- 53 kt
- 0-1 km storm-relative helicity
- -37 m²/s²
- 0-3 km storm-relative helicity
- 122 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 weather advisory 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 weather advisory went out at Feb 13, 6:35 PM EST, 21 hours 11 minutes earlier.
Area forecast discussion, Feb 13, 6:35 PM EST, 21 hours 11 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 |
|---|---|---|---|---|
| Feb 14, 3:46 PM EST | Winter Storm Watch | CTP | Bedford, Cumberland, Dauphin, Franklin, Fulton, Lebanon and 3 more | 13 hr |
| Feb 14, 3:46 PM EST | Winter Storm Warning | CTP | Cameron, Centre, Clearfield, Clinton, Elk, Lycoming and 5 more | 38 hr |
Nearby
Winter Weather Advisories in Pennsylvania, 2021Every winter weather advisory 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.