. >> abc's john ehrlichmann reports, it's catching people unaware. >> reporter: chaos across southerncaught off guard by icy conditions. trapped in their cars. >> we can't go. we're stuck. >> reporter: forced to use snowcats for the rescue. in pasadena, at least four injured, winds gusting at the rose bowl. and more winds at the coast in san francisco. near 50 miles per hour. train service stalled by trees on tracks and some ferry service canceled. >> yeah, it was rocky. >> reporter: and in the northern sierra, falling trees killing two. >> it was one tree right after another. >> reporter: and icy road conditions reich these ones in lubbock, texas, leading to more than a hundred crashes. in salt lake city, a car slamming into a tractor-trailer carrying 8,000 pounds of crude oil. but back in california families and pets home for the holidays are at least able to enjoy a rare snowy new year's eve. and in the l.a. area more snow expected on the mountains and temperatures into the 30s. possibly meaning the coldest weather at the rose parade since 1952. john ehrlichmann, abc news, los ange