 Its expected impact caused over 450 flights to be canceled at O'Hare International Airport and 70 flights to be canceled at Midway International Airport.Additionally, hundreds of schools, colleges, and even workplaces, particularly in the collar counties, were closed for the day.17 inches (43 cm) of snow fell in LaSalle and Peru, where blizzard conditions brought Interstate 80 to a standstill for much of the day.