Ice Jams and Flooding Possible on Illinois Rivers as Temperatures Drop

Some of the coldest temperatures in years will descend on Illinois over the next few days and could cause increased river ice jams and flooding.

According to the advisory from the National Weather Service in Chicago, there will be "favorable conditions" for river ice formation that could result in ice jamming along the Rock, Fox, and Kankakee Rivers through early next week.

The ice and flooding threat will increase as temperatures plummet and the highest risks are at the following locations, according to the NWS:

• Rock River near Dixon, Illinois
• Fox River near East and West Dundee, Illinois
• Kankakee River near Momence, Illinois

There's already been an increase in ice formation along some rivers in Northern Illinois causing "a few minor instances of ice jamming," according to the National Weather Service.

This outlook means that elevated water levels and potential impacts
are possible, but not yet certain. Persons should closely monitor
forecasts including the possibility of flood watches, warnings, and
advisories. -National Weather Service

A Winter Storm Warning is in effect until 6 am Saturday (Christmas Eve) for the entire Rockford area and is expected to bring wind gusts up to 50 mph and wind chills of -25 to -35 below zero.

2 to 5 inches of snow accumulation is possible with this winter storm and possible blizzard conditions on Thursday and Friday nights.

If traveling is absolutely necessary, make sure to check current weather and road conditions before heading to your destination. The National Weather Service also reminds you to always have an extra flashlight, food, and water in your vehicle. Extra blankets, gloves, and hat are also suggested.

For current winter weather road conditions in Illinois, CLICK HERE.