Chicago is preparing for a bout of heavy lake-effect snow expected to impact the region Friday and Saturday. Winter weather advisories have been issued for Lake, northern Cook, and DuPage Counties, with potential snow accumulation of 2-3 inches. Residents should anticipate rapidly changing road conditions and hazardous travel during peak snowfall periods.

A Winter Storm Watch is in effect for central and southern Cook County, including the city of Chicago, where localized snow totals could exceed 6 inches. Northwest Indiana's Lake and Porter Counties are under a Winter Storm Warning, also anticipating significant snowfall. These weather events have the potential to disrupt business operations and daily commutes.

Travelers with plans in the affected areas should be aware of potential delays and limited visibility. Snowfall rates could reach 1-3 inches per hour, creating dangerous conditions. Temperatures will be in the upper teens to near 20 degrees on Friday. The weekend will bring slightly warmer temperatures into the mid to upper 20s.

The impact of this severe weather could include flight delays, road closures, and increased demand for winter-related services. Businesses should prepare for potential disruptions to supply chains and customer traffic. The city's infrastructure will be tested as it manages the snow removal efforts. Sunday is forecast to be dry with sunshine.