Authorities from the Ohio Valley to the Northeast are warning motorists to stay home as a weekend snowstorm grounds flights and makes roads slippery.

The National Weather Service forecast up to 10 inches of snow in parts of Ohio and Massachusetts. The weather service has posted winter warnings and advisories from northern Illinois to New England.

Ohio's Cleveland Hopkins International Airport canceled or delayed half of its morning flights Saturday.

The Star Press of Muncie reports that wreckers have stopped responding to accidents in Indiana because they were sliding off icy roads when they tried to winch vehicles out of ditches. Five Indiana highway department trucks slid into ditches while applying sand and salt.