January 5, 2014 by Jerry Howard
An urgent winter weather message is coming from the National weather service in Chicago tonight for Illinois counties of Lee, De Kalb, Kane, Dupage, Cook, La Salle, Kendall, Grundy and Will.
It says that while its winter storm warning has expired, a wind chill warning remains in effect until noon (CST) Tuesday.
The Weather Service says “dangerously cold wind chills” will occur tonight through Tuesday morning, with the most extreme wind chills likely late tonight and tomorrow night.
It expects wind chills 30 degree below zero through midday Tuesday, with 40 below to 50 below zero late tonight into tomorrow afternoon and again early Tuesday morning, “These forecast wind chills are the lowest in nearly 20 years.”
A wind chill warning gets issued when wind combines with very cold air to cause dangerously low wind chill values that can result in frost bite, hypothermia or death if precautions are not taken.
The Weather Service warns that frost bite and hypothermia will occur in minutes with the forecast wind chills, and death will occur if precautions are not taken when being outside.
It expects temperature to reach 12 below to 20 below zero tonight and tomorrow night, with record cold highs of 8 below to 15 below zero tomorrow, with strong northwest winds blowing and drifting snow through tomorrow.