If 18 inches of snow falls in Washington, D.C., then it would eclipse the "Blizzard of 1996" and the "Snowmageddon Storm" of Feb. 5-6, 2010.
The greatest snowfall for a single-day in Washington, D.C., was 21.0 inches on Jan. 28, 1922, during the "Knickerbocker Storm."
If 18 inches of snow falls on Baltimore, then it would tie the top 10 storm from Dec. 18-19, 2009.
The greatest snowfall for a single-day in Baltimore was 23.3 inches on Jan. 28, 1922.
Snowfall records date back to 1884 at Washington, D.C., and 1892 at Baltimore.
Record-breaking or not, the weekend blizzard will prove to be very disruptive over a broad area of the mid-Atlantic and perhaps part of southern New England as well.