The National Weather Service detected a possible twister on radar, but it's unclear whether a tornado or straight-line winds caused the damage. The main time frame is from approximately 4 p.m. until 2 a.m.; earlier time west of I-55, then later farther east as storms moves across the state.
Showers and storms will be making their presence known this weekend with the potential for severe weather Sunday.
There is a marginal risk for severe weather Friday with a few scattered storms possible in the afternoon. A few rumbles of thunder early Monday morning are possible as we have just enough instability to create some convective storms. Combining strong winds and a saturated ground, it will be easier for trees to be uprooted and even fall on power lines. Showers will increase in coverage slightly by late in the day, and as temperatures drop we may see a wintry mix develop from north to south.
Thunderstorms with penny-sized hail and lighting hit northwest Illinois Thursday morning, moving northeast.
Sunday will be cool and breezy, but completely dry with sunshine.
Tuesday: Sunny, with a high near 82. But Sunday skies will clear with a high around 67. Low: 58. High: 80. Wind gusts around 50-60 miles per hour will be possible among the strongest storms that roll through.
WEDNESDAY: Partly cloudy with a 30 percent chance of storms.
The tornado threat will be lower by then, but damaging winds could still present hazardous conditions. The highest rain chances will be after midnight to before sunrise Monday.