A multi-faceted weather system is expected to impact northern Illinois and northwest Indiana on Thursday, bringing strong winds, rapidly falling temperatures, and hazardous travel conditions.
According to the National Weather Service Chicago/Romeoville office, a strong low-pressure system will move through the region Thursday. Southerly wind gusts of 40 to 45 mph are expected during the morning, shifting to westerly gusts of similar strength during the afternoon and evening. These winds may blow around unsecured outdoor objects, including holiday decorations, and create difficult travel for high-profile vehicles.
Periods of rain are expected earlier in the day before temperatures drop sharply late Thursday afternoon and evening. Forecasts indicate readings will fall from the 40s into the 20s and teens within a few hours.
As colder air moves in, gusty snow showers and snow squalls are expected to develop. These squalls may cause sudden reductions in visibility and produce localized coatings of snow on roadways. The National Weather Service also warns that rapidly falling temperatures could cause any remaining moisture on pavement to freeze, leading to slick spots on untreated roads and sidewalks.
The most hazardous conditions are expected Thursday evening, particularly during the commute period. Drivers are urged to slow down, allow extra travel time, and remain alert for rapidly changing road conditions.
The impacts may be especially noticeable for commuters, delivery drivers, and those traveling during the evening hours across the Chicago metropolitan area and surrounding communities.
