A sharp temperature drop and potential lake effect snow threaten to disrupt Thanksgiving travel across northwestern Pennsylvania, with a Winter Storm Watch in effect from late Wednesday night through Friday evening for Warren and McKean counties.

The National Weather Service in State College warns that after an unseasonably mild Tuesday and Wednesday with temperatures reaching the 55-65 degree range, a powerful cold front will sweep through central Pennsylvania on Wednesday evening.

This dramatic shift will bring blustery conditions with wind gusts of 35-45 mph on Thursday and Friday, plunging temperatures and triggering potentially significant lake effect snow.

Holiday travellers should prepare for rapidly changing conditions on Wednesday night into Thursday.

Wind chills on Thanksgi

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