Springlike warmth will pour from the Plains to the East before another winter storm unfolds at midweek.
After dramatically warmer air spread onto the Plains on Sunday, the rest of the eastern third of the U.S. will turn mild through Tuesday.
Highs soared to 80 degrees in St. Louis, Mo., and the 70s in Raleigh, N.C., on Monday as the warmth expanded eastward.
Temperatures returned to the 50s in New York City and Philadelphia on Monday afternoon, but Tuesday will prove to be the mid-Atlantic's warmest day of the week.
New York City will reach the low 60s, while Washington, D.C., climbs into the low to middle 70s 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. In most of these areas, temperatures will 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 in the week.
Along the leading edge of this next cold blast, AccuWeather.com meteorologists continue to closely monitor a storm that will track from the Northwest and Rockies to the Northeast.
The storm will produce widespread substantial snow with the threat currently greatest from Chicago to northern New England from Tuesday night through Thursday.
Content contributed by Meteorologists Andy Mussoline and Mike Doll
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Tropical Cyclone Eliakim has claimed the lives of at least 17 people in Madagascar as the storm produced flooding and mudslides.
A double-barreled storm will spread wet snow and travel disruptions from parts of Tennessee and Kentucky to coastal New Hampshire and Maine as winter winds down and spring begins.
As a second storm in three days pushes east of the Rockies, severe and drenching storms will erupt across areas from the southern Plains to the Southeast to close out this weekend.
It will not feel like the first days of spring to those in the mid-Atlantic and New England, where a snow event is expected to unfold spanning Tuesday through Wednesday.
There is a distinct difference between a watch and a warning, and knowing the difference can save your life.