Late last week, reports warned that the weekend would bring a major winter storm — but the weather failed to live up to those dramatic predictions. How do meteorologists come up with forecasts, and how accurate are they?
Meteorology 101
Late last week, reports warned that the weekend would bring a major winter storm -- but the weather failed to live up to those dramatic predictions. How do meteorologists come up with forecasts, and how accurate are they?

Guests:
Warren Blier, science officer with the National Weather Service
Brian Hackney, weather and science reporter for KPIX Channel 5 News
Jan Null, forensic meteorologist and consultant for Golden Gate Weather Services