According to the weather service, the adverse weather is likely to move into northern Illinois sometime between 4 and 10 p.m. The system will approach from the west and is likely to affect outlying suburbs to the west and north before the more immediate Chicago area. Thunderstorms are expected to reach the city close to 6 p.m., and by 8 p.m., portions of northwest Indiana also could see hazardous conditions.
Weather forecast for Monday: ‘A brief tornado cannot be ruled out,’ along with thunderstorms, hail and wind gusts as strong as 60 or 70 mph
