The National Weather Service in the Dakotas and Minnesota says it's sticking with the "extreme cold" warnings that it tested last winter. Meteorologists say the winter weather can be dangerously cold even without wind. Forecasters will issue the warning when the temperature could feel like 30 below or colder.
Gophers top Cornell for spot in national championship game
Minnesota is playing in the title game for the 10th time since 2000.