WINONA Minn. — Winter arrived. Light snow accumulated in places to an inch and more by mid-morning. As usual with the first measureable snow of the season, many motorists were caught unawares. The sheriff’s office received two accident calls on Interstate 90 and two at St. Charles 23 miles west at the other end of the county. There were no injuries. Many spin-outs went unreported. Sheriff Ron Ganrude, driving from St. Charles to Winona, said conditions were most severe west from the top of the Lewiston grade to St. Charles. Cars were in the ditch the whole way. In St. Charles, Ganrude said, the snow was falling so thick at one point that he couldn’t see across the street.