Snow squall may have contributed to massive, 49 car pile-up near Denver's airport
Snow was in the forecast with 2 inches falling out at DIA, but those icy and snowy conditions may have contributed to a big pile-up involving 49 cars on Saturday. The sudden onset of heavy snow and ice can cause drivers to lose control quickly. Meteorologist Becky Ditchfield explains what this type of storm is called and the warnings that may accompany it in the future.