A major pattern shift is on the way for Pennsylvania as fall’s mild streak gives way to colder air and the threat of early snow between November 9 and 15. Much of the state may see its first winter, with rain turning to snow and Arctic air rushing in from the northwest.
The NOAA Climate Prediction Center predicts that temperatures in Pennsylvania will be near to slightly below normal through the middle of the month, but precipitation will be near or above normal, particularly in the west and north. This combination increases the chances of lake-effect snow around Erie, as well as flurries or mixed precipitation farther south and east.
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The National Weather Service offices in Pittsburgh, State College, and Binghamton warn that a cold front will provide widespread rain early next week, followed by considerably colder air. By midweek, highs will be in the 40s and lows in the upper 20s, cold enough to bring snow showers to the Alleghenies, Laurel Highlands, and I-80 corridor.
During heavier bursts, drivers on I-79, I-80, and the Pennsylvania Turnpike could expect gusty gusts, poor visibility, and slick roads. PennDOT technicians are already planning for early-season road maintenance if temperatures drop faster than projected.
Before the colder weather arrives, homeowners should insulate pipes, check furnaces, and clean gutters. With Thanksgiving less than three weeks away, early planning may help avoid home and travel issues as winter weather grips the Keystone State.
