National Weather Summary for January 21,2014 from weatherunderground.com

Weather Underground midday recap for Tuesday,January 21,2014

A cold frontal boundary extended from the southern Plains to the Mid-Atlantic coast on Tuesday, while a separate cold front stretched across the Gulf of Mexico and into the Southeast.

A swath of heavy snow moved across the eastern third of the country on Tuesday as winter storm warnings were issued throughout the Ohio Valley, the Mid-Atlantic and New England. Monongalia, W. Va., reported a midday total of 8.0 inches of snow, while Westmoreland, Pa., reported a midday total of 5.0 inches of snow. An arctic air mass also swept across the Northeast as wind chill warnings were issued in a handful of states. Watertown, N.Y., recorded a morning low of -29 degrees with a windchill factor of -41 degrees, while Mount Washington, N.H., recorded a windchill factor of -67 degrees. To the south, a separate frontal boundary drove showers and thunderstorms across Florida, as well as the coasts of Georgia, South Carolina and North Carolina.

Cold, blustery conditions and snow showers pushed across the northern Plains and upper Midwest on Tuesday, as winter weather advisories were issued in northeastern North Dakota and northwestern Minnesota. Crane Lake, Minn., recorded a morning low of -32 degrees.

The West Coast continued to experience dry conditions due to a ridge of high pressure over the eastern Pacific. The Southwest experienced warm, sunny conditions, as Camarillo, Calif., recorded a midday high of 81 degrees, while Point Mugu, Calif., recorded a midday high of 79 degrees.