Though Chicago averted an all-out snowstorm Tuesday night, a couple of inches of snow should arrive in time for the Wednesday morning commute. The .7 inches of snow that had collected at O’Hare International Airport by midnight Wednesday was a far cry from the six inches of “heavy, wet snow” forecasters had predicted may fall, in line with the National Weather Service. However, as much as three inches should arrive by late Wednesday morning, with the potential for extra within the south suburbs and northwest Indiana. The change in fortune might be attributed to a late, sudden shift within the storm system that was approaching the world, in line with climate service meteorologist Lee Carlaw.