Springlike warmth will pour from the Plains to the East over the next few days before a potential winter storm unfolds at midweek.
Dramatically warmer air will first spread to the Plains on Sunday with the rest of the eastern-third of the U.S. to turn milder Monday through Tuesday.
The mild spell headed to the Northeast will come after fresh chilly air on Sunday puts the brakes on Saturday's warmup. Motorists and those traveling by foot should stay alert for wet spots to turn icy Saturday night as the colder air arrives.
Temperatures on Sunday will exceed Saturday's highs by roughly 20 degrees across most of the Plains. Highs in the 70s will be registered from Rapid City, S.D., to Garden City, Kan.
Highs in the 70s will spread to St. Louis, Mo., Louisville, Ky., and Raleigh, N.C., on Monday as the warmth expands eastward.
Temperatures will return to the 50s in New York City and Philadelphia this day, but Tuesday will prove to be the mid-Atlantic's warmest day of the week.
New York City will approach the 60-degree mark, while Washington, D.C., comes close to cracking 70 F on Tuesday.
Throughout the Midwest and East, the greatest amount of warming--in regards to departures from normal--will occur in the vicinity of I-80 and points southward.
Temperatures will return to normal or rise a few degrees above normal for a day or two across places to the north. Most of these areas will still see temperatures dip below freezing at night, causing any wet areas from continued melting snow to turn slick.
Despite this taste of spring, winter does not appear to be willing to fully release its grip on the nation just yet. Colder air is destined to erase the warmup by late week.
Along the leading edge of this next cold blast, AccuWeather.com meteorologists continue to closely monitor a storm that may track from the Northwest and Rockies to the Northeast.
There is concern for the storm to produce widespread disruptive snow with the threat currently greatest from Ohio to New England at midweek.
AccuWeather.com will continue to release more details on the winter storm potential in the upcoming days.