Alert archive / Pennsylvania / Winter Weather Advisories in 2021
Winter Weather Advisory 23, NWS State College, PA
NWS State College, PA issued this winter weather advisory at Nov 22, 2021, 4:54 AM EST for McKean County, Warren County, Pennsylvania. It took effect at Nov 22, 2021, 4:00 PM EST. It was in force for 22 hr.
The area
The counties it named.
The facts
- Issued
- Nov 22, 2021, 4:54 AM EST (09:54 UTC)
- In effect from
- Nov 22, 2021, 4:00 PM EST
- Expired
- Nov 23, 2021, 2:08 PM EST
- In force
- 22 hr
- Issued by
- NWS State College, PA
Counties McKean County, PA, Warren County, PA
The radar
The State College radar (KCCX), 125 km from the middle of the area, began a volume at 09:54 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, 9.9 hours before the alert went out and 126 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
- 508 m above ground
- 0-6 km bulk shear
- 67 kt
- 0-1 km storm-relative helicity
- 362 m²/s²
- 0-3 km storm-relative helicity
- 348 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 Nov 22, 3:11 AM EST, 1 hour 43 minutes earlier.
Area forecast discussion, Nov 22, 3:11 AM EST, 1 hour 43 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 |
|---|---|---|---|---|
| Nov 22, 6:26 AM EST | Special Weather Statement | CTP | Blair, Cambria, Centre, Columbia, Huntingdon, Juniata and 7 more | 79 min |
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.