More snowfall was forecast across the Chicago area into early Wednesday, and dropping temperatures and increased winds were expected to create snow drifts and possibly hazardous road conditions.
A winter weather advisory, which is issued for snowfall totals around 3 to 5 inches, was extended until 4 a.m. in Cook, DuPage, Will and other southern counties. A winter storm warning, generally issued for 6 or more inches of snow, also was in effect until 4 a.m. in Lake, Kane, McHenry, DeKalb and other western counties, according to the National Weather Service.
