UPDATE: Now it appears rain/sleet and snow line will waver back and forth over Chicago overnight. More snow likely north and west of Chicago. Time frame has been pushed back with storm’s end occurring during the evening rush. The heaviest snow has moved north, near Kenosha, Wisconsin.
Heavy snow has started ahead of prediction. Prediction for Arlington Heights is 13 inches by this storm’s end during the evening rush hour Wednesday. Sleet began about 3:45 pm in Arlington Heights and heavy snow began about 6:00 p.m. In Arlington Heights. Snow is expected to fall at a rate of 1 to 2 inches right after the morning rush hour Wednesday.