BUFFALO, N.Y. (AP) — Northern and western New York are still gripped in bone-chilling cold following a winter storm that has claimed at least three lives.

A National Weather Service advisory says the wind chill could reach 20 below zero in some areas on Friday.

Schools remained closed in Buffalo, which has been digging out from nearly two feet of snow.

A ban on trucks and commercial buses on the western section of the Thruway was lifted on Thursday night. Gov. Andrew Cuomo had vowed to crack down on violators a day after a tractor-trailer crash near Rochester caused a major pileup that left a trooper with serious injuries.