Lake Effect from arctic outbreak Nov 20-22, 2008.
Skip Navigation Linksweather.gov 
NOAA logo - Click to go to the NOAA homepage National Weather Service Forecast Office   NWS logo - Click to go to the NWS homepage
Go to NWS State College, PA Home
 

Local forecast by
"City, ST" or zip code
Lake Effect from arctic outbreak Nov 20-22, 2008.
A prolonged snowfall event occurred over Central PA from Wednesday night (Nov 19th) into Saturday (Nov 22nd).

The event started with a weak Alberta Clipper moving through on fast west-northwest flow Wednesday night. This Clipper produced very minor snow accumulations, mainly across the northern part of PA.

The event then turned immediately into a lake effect event with several enhancements from occasional intrusions of even colder air. A record low (minimum) temperature was tied at Williamsport, PA on the morning of the 22nd - 15 degrees which was last set in 1969.

The cold air flowing over the great lakes made heavy snow over the Northwest Mountains (aka the Snow Belt), and the upslope areas of the Laurel Mountains.

But, the most unusual features were a series of long-lived snow bands that produced snow well into the Central Mountains, and even into the Southeastern Piedmont east of Harrisburg.

See the images below for more information.
48 hour Snow Totals from 7 am Nov 20 thru 7am Nov 22
48 hour Snow Totals from 7 am Nov 20 thru 7am Nov 22

Total snow through 8am Nov 21
Total snow through 8am Nov 21

Snow Squall on the Afternoon of Nov 21st, view to the East from NWS CTP.  Photo by Rob Radzanowski, Forecaster
Snow Squall on the Afternoon of Nov 21st, view to the East from NWS CTP. Photo by Rob Radzanowski, Forecaster


 
Local Climate, Water & Weather Topics:
Forecasts, Current Hazards, Current Conditions, Water Resources, Radar, Satellite, Climate,
Weather Safety, Wireless/PDAs, Feature Articles,

US Dept of Commerce
NOAA National Weather Service
Central Pennsylvania Weather Forecast Office
328 Innovation Blvd, Suite 330
State College, Pennsylvania 16803
(814)231-2408
Page Author: 
Page Last Modified: 02 December 2008 02:39:11 UTC
Disclaimer
 
Credits
 
Glossary
Privacy Policy
 
About Our Organization
 
Career Opportunities