E6: Snow piles, La Nina, and the groundhog

The first days of February have continued to prove mild, although some of the area snow piles have proven stubborn to melt. Especially coming out of the frigid and snowy pattern that encased much of mid and late January, the groundhog's prediction of 6 more weeks of winter leaves a lot of time left for big changes. Chief Meteorologist Rich Wirdzek examines the emerging trends that may lead to another blast of cold air and chance for more snow later in the month.