The National Weather Service released a cold weather advisory at 1:37 a.m. on Friday valid from 10 a.m. until Sunday 9 a.m. for Oneida County. "Very cold wind chills as low as 22 degrees below expected," comments the weather service. Understanding cold weather alertsCold weather advisory: Be Aware. A cold weather advisory is issued when seasonably cold air temperatures or wind chill values, but not extremely cold values, are expected or occurring. An extreme cold warning is issued when dangerously cold air temperatures or wind chill values are expected or occurring.