This might be a snowfall for the record books. The National Weather Service is reporting that the massive storm currently traveling up the East Coast has the potential to dump in excess of 30" of snow in the Washington DC region. The largest recorded snowfall for DC was back in January 1922 and was dubbed the "Knickerbocker" storm because it caused the roof of the Knickerbocker theater in DC to collapse, which resulted in 98 fatalities. That snowfall was measured at 28".