Chicago, IL – A band of scattered thunderstorms is expected to move across northern Illinois beginning around midnight and lasting through 9 a.m. Friday, bringing risks of hail and hazardous travel conditions. The storms may produce downpours intense enough to cause temporary flooding, particularly in low-lying urban areas.
According to the National Weather Service Chicago, the weather system is driven by a strong warm front lifting northward overnight. Thunderstorm activity will be most intense between 12 a.m. and 6 a.m., with areas from Dixon to Watseka identified as having the highest potential for isolated hail up to 1 inch in diameter. Lightning and gusty winds are also possible, with storm movement expected to the east at approximately 40 mph.
Motorists are advised to plan for slower commutes Friday morning due to water pooling on roads and limited visibility. Residents should remain indoors during active storms and secure outdoor items ahead of time. While March storms are not unusual in Illinois, hail and flash flooding this early in the season are less common.
