National Weather Summary for February 25,2014 from weatherunderground.com

Weather Underground midday recap for Tuesday,February 25,2014

An arctic air mass continued to sweep across the northern tier of the country on Tuesday, while a wave of low pressure moved across the central U.S.

An arctic air mass pushed very cold, blustery conditions across the northern Plains, the upper Midwest and the Great Lakes on Tuesday as wind chill advisories were issued across a handful of states. Park Rapids, Minn., recorded a morning low of -18 degrees with a wind chill factor of -40 degrees, while Langdon, N.D., recorded a morning low of -16 degrees with a wind chill factor of -41 degrees. Just to the south, low pressure ushered snow showers across the Rockies and the central Plains as winter weather advisories were issued in Wyoming and Colorado. Meanwhile, high pressure kept conditions warm and sunny from the Southwest to the Gulf Coast, as the eastern Gulf Coast experienced the warmest midday temperatures. Homestead, Fla., recorded a midday high of 85 degrees.

Along the Eastern Seaboard, a wave of low pressure triggered snow showers over several Mid-Atlantic states, as Virginia, Maryland and southern Pennsylvania experienced winter like conditions. Scattered light snow showers and very cold conditions also moved across parts of the Northeast, as Mount Washington, N.H., recorded a morning low of -14 degrees with a wind chill factor of -56 degrees.