Wind chills of 10 to 20 degrees below zero are forecast for parts of Iowa and Illinois.
The National Weather Service website says single-digit, and even below-zero daytime wind chill values were expected in our area Tuesday. Those wind chill values were forecast to drop to 10 to 20 degrees below zero Tuesday night and Wednesday.
Wind speeds of 15 to 25 miles per hour could blow snow Wednesday in addition to extending the dangerously cold conditions.
The affected area includes most counties in the WQAD News 8 viewing area. Counties included are Buchanan, Delaware, Dubuque, Benton, Linn, Jones, Jackson, Iowa, Johnson, Cedar, Clinton, Muscatine, Scott, Keokuk, Washington, Louisa, Jefferson, Henry (Iowa), Des Moines, Van Buren, Lee, Jo Daviess, Stephenson, Carroll, Whiteside, Rock Island, Henry (Illinois), Bureau, Putnam, Mercer, Henderson, Warren, Hancock, McDonough, Scotland and Clark.
Dangerous wind chills around 20 below zero were possible Wednesday night along the Highway 20 corridor.