Residents in northern Illinois should brace themselves for waves of severe thunderstorms that are forecast to roll in after midnight Tuesday, bringing destructive hail, gusty winds, and heavy rain.
According to the National Weather Service Chicago, the main dangers are giant hail capable of denting vehicles and siding, localized wind gusts of up to 60 mph, and frequent lightning. These storms are expected to track northeast at 50 mph, with the most intense activity likely occurring in the early hours of Wednesday morning.
West of Chicago, including Ottawa, Dixon, and DeKalb, face a Level 2 out of 5 severe weather threat, while Cook County and its neighboring suburbs are classified as Level 1. Storm timing and strength may vary, with updates likely over the next 24 hours.
Residents should make sure they have numerous ways to get overnight weather notifications, including choices to wake them up. Secure outside goods, keep an eye on local weather forecasts, and stay indoors during thunderstorms.
This storm system signals a significant departure from the milder conditions of Monday and Tuesday, with temperatures reaching the 60s and 70s by Wednesday.