Wind chills are in the 35 to 55 degree below zero range throughout the entire area, according to the National Weather Service.
Temperatures are in the 20s below zero with gusty northwest winds of 20 to 30 mph and will remain that way through this morning.
This level of low wind chills can be life-threatening to any person or animal that is out in the conditions for any prolonged period of time. Exposed flesh will freeze and cause frost bite in only 5 minutes. While winds will gradually decrease into tomorrow morning, wind chills will remain dangerously low in the 35 to 50 degree below zero range.
A wind chill warning remains in effect until noon Tuesday.