SOUTH BEND — Many schools across the area canceled classes Wednesday because of icy roads and dangerously cold temperatures. All roads were open during the morning commute, but police urged drivers to stay off the Bypass and the Toll Road.

St. Joseph County police said they had to temporarily close the Bypass between SR 23 and Mayflower Rd. overnight Tuesday because of flooding in some areas.

The Toll Road was icy and dangerous, according to Toll Road police. They told WSBT drivers should use extreme caution if they had to use the Toll Road at all.

In Marshall County, U.S. 31 southbound was closed around midnight after a tree fell across the lanes near the U.S. 30 intersection.

"They're everywhere," said LaPorte County officials of their slide-offs and accidents, though fortunately, there were no reports across the region of serious crashes.

"The wind is the worst part of it all," added LaPorte city authorities.

In Cass County, officials asked people to stay off the roads unless travel was critical. In fact, county authorities warned that if motorists did have an emergency, 911 crews were likely to have difficulty themselves while responding.

Berrien County police dispatchers said some back roads had drifted shut, and blowing and drifting snow was still a problem at 6 a.m.

Michigan State Police at midnight asked all drivers to stay off I-94 from the Indiana-Michigan state line clear through to Calhoun County unless travel was absolutely essential.

Shortly after 1 a.m., MSP said all westbound lanes were closed from Lawrence because the roads were so icy that trucks could not move and blocked the highway.

For complete closing and weather updates, stay with WSBT on the air and online.

SBT 24/7 News contributed to this report.