Alert archive / Pennsylvania / Lake Effect Snow Warnings in 2010
Lake Effect Snow Warning 2, NWS State College, PA
NWS State College, PA issued this lake effect snow warning at Dec 12, 2010, 1:30 PM EST for McKean County, Warren County, Pennsylvania. It took effect at Dec 13, 2010, 7:00 AM EST. It was in force for 56 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 12, 2010, 1:30 PM EST (18:30 UTC)
- In effect from
- Dec 13, 2010, 7:00 AM EST
- Expired
- Dec 15, 2010, 3:01 PM EST
- In force
- 56 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 18:30 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 12:00Z, 6.5 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
- 730 m above ground
- 0-6 km bulk shear
- 55 kt
- 0-1 km storm-relative helicity
- 327 m²/s²
- 0-3 km storm-relative helicity
- 406 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this lake effect snow 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 lake effect snow warning went out at Dec 12, 10:07 AM EST, 3 hours 23 minutes earlier.
Area forecast discussion, Dec 12, 10:07 AM EST, 3 hours 23 minutes before
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Everything else NWS State College, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 11, 7:16 PM EST | Freezing Rain Advisory | CTP | Adams, Cumberland, Dauphin, Franklin, Lancaster, Lebanon and 2 more | 3 hr |
| Dec 11, 10:40 PM EST | Freezing Rain Advisory | CTP | Bedford, Blair, Cambria, Cameron, Centre, Clearfield and 18 more | 10 hr |
| Dec 12, 1:30 PM EST | Winter Storm Warning | CTP | Cambria, Somerset | 54 hr |
Nearby
Lake Effect Snow Warnings in Pennsylvania, 2010Every lake effect snow warning in 2010
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.