Here's a movie set in L.A. and there girls find this weather machine which they don't realize belongs to Santa. Allie takes it home, turns it on and causes this major snowstorm in a part of the country that's not accustom to such weather. Even the weatherman that's featured throughout the film is caught off guard and gets yelled at by his boss who's already unhappy with him.
That's just a small summery of this film. Some trivia the weatherman mentions the 14 inches of snow that has fallen eclipses the previous record of 0.3 inches n Jan. 19th 1949. Turns out that wasn't made up such a storm did hit L.A. that year.