Classes are not canceled Thursday, CPS CEO Pedro Martinez announced. Chicago is expecting to get hit with a dangerous combination of high winds, extremely cold temperatures and blowing snow, creating whiteout conditions.

Joel Weisman and his panel of journalists delve into the Chicago tradition of placing "dibs" on shoveled parking spots.

The largest snowstorm of the season hits Chicago. Find out how public officials are trying to avoid the chaos of the 2011 blizzard.