Chicago Area Winter Weather Advisory: Preparing for Snow, Freezing Rain, and Potential Travel Impacts

Overview

The National Weather Service (NWS) has issued a winter weather advisory for the Chicago area, effective from 5 a.m. Monday through 9 a.m. Tuesday. The advisory covers a wide region, encompassing McHenry, Lake (IL), DeKalb, Kane, Kendall, and northern Cook County, as well as DuPage, Will, and parts of Cook County. Additional counties affected by the advisory include Kankakee, Lake (IN), Porter, Newton, and Jasper in Indiana, along with LaPorte County in northern Indiana.

Forecast Summary

Areas north of Interstate 88 could see an inch or more of snow, while areas south of the interstate may experience mixed precipitation throughout the day. Significant freezing rain is anticipated across the region, with accumulations ranging from one-tenth to two-tenths of an inch. Higher accumulations are expected south of Interstate 88 and in parts of northern Indiana. A mix of snow, sleet, and freezing rain is likely during the day, transitioning into freezing drizzle in the afternoon and evening. Subfreezing ground temperatures will persist, allowing ice to form on untreated surfaces and potentially leading to hazardous driving conditions.

County-Specific Details

McHenry, Lake (IL), DeKalb, Kane, Kendall, and Northern Cook County

* Winter Weather Advisory Period: 5 a.m. Monday to 9 a.m. Tuesday
* Precipitation: Wet snow transitioning to mixed precipitation, with potential freezing drizzle and freezing rain.
* Accumulations: Up to one-tenth of an inch of ice and an inch or more of snow.

DuPage, Will, and Parts of Cook County

* Winter Weather Advisory Period: 9 a.m. Monday to 6 a.m. Tuesday
* Precipitation: Mixed precipitation, including wet snow, freezing drizzle, and freezing rain.
* Accumulations: A dusting to an inch of snow, along with one-tenth of an inch of ice.

Kankakee, Lake (IN), Porter, Newton, and Jasper Counties

* Winter Weather Advisory Period: 9 a.m. Monday to 6 a.m. Tuesday
* Precipitation: Light mix of snow, sleet, and freezing rain, transitioning to freezing drizzle and freezing rain.
* Accumulations: Up to two-tenths of an inch of ice.

LaPorte County

* Winter Weather Advisory Period: 3 p.m. Monday to noon Tuesday
* Precipitation: Mix of rain, snow, and freezing rain, with a primary threat of freezing rain.
* Accumulations: Up to two-tenths of an inch of ice.

Potential Impacts

The combination of snow and freezing rain could lead to hazardous driving conditions, impacting both the morning and evening commutes. Accumulating ice may cause power outages, particularly in areas with untreated surfaces. Sidewalks and roads could become slick due to freezing rain, posing a risk of slips and falls.

Recommended Precautions

Monitor weather forecasts and traffic updates to stay aware of changing conditions. If possible, avoid unnecessary travel during the advisory period. If you must travel, allow extra time and drive cautiously. Ensure your vehicle is properly equipped for winter weather, with snow tires or chains if necessary. Clear snow and ice from sidewalks, driveways, and steps to prevent slipping hazards. Dress warmly to stay warm and dry in cold temperatures. Be mindful of elderly or vulnerable neighbors who may need assistance during the winter weather.

Conclusion

The Chicago area winter weather advisory highlights the importance of staying informed, taking precautions, and adjusting plans accordingly to ensure safety during inclement weather conditions. By following these recommendations, residents can minimize the potential risks and impacts associated with the forecasted snow and freezing rain.