A storm that moved from the central Plains into the Midwest Saturday night will continue moving northeastward, spreading snow and ice into eastern Canada and the Northeast into Monday morning.
Milder air surging above the cold air in place at the surface across the Northeast will allow for an icy mix in some areas through Monday morning. Freezing rain that developed across the Midwest over the weekend will spread farther east through New York, northeastern Pennsylvania and New England into Monday morning.
While no significant ice accumulations or power outages are expected in these area, a thin glaze of ice may develop on some surfaces and be enough to create treacherous travel conditions. By early Monday morning, a bit of freezing
The Winter Weather Center reports that snow will fall to the north of the system, with a corridor of heavier snow, 3 to 6 inches, falling northeast of the Great Lakes region in Ontario and Quebec, Canada.
An icy mix across western and Upstate New York, as well as northern New England, is expected to change over to snow showers into Monday. Lake-effect snow showers will develop off the eastern Great Lakes through Monday night.
The snow and ice may create dangerous travel conditions and even travel delays. The FAA Flight Delay map will have the latest travel information for airline passengers.
The Severe Weather Center displays the snow and ice-related warnings, watches and advisories currently in effect.
The ice glazed roadways in and around Iowa on Saturday, including Interstate 35. A major accident on Interstate 35 near Jewell, Iowa, was blamed on the icy conditions. Another accident involving as many as 15 cars occurred near Ames, Iowa. Runways became icy at the airport in Waterloo, Iowa, forcing them to be closed for a time.
The South Regional News story reports that some showers and thunderstorms will linger across the Southeast ahead of a cold front associated with the system moving through the Northeast. While widespread severe storms are not expected, a few of the storms could produce hail and damaging winds.
Storms became severe across the lower Mississippi Valley on Saturday with unconfirmed reports of several tornadoes. One unconfirmed tornado was reported to have touched down two miles west of Alexandria, La., tearing the roof off a house and dropping it onto a car. This happened just south of the Alexandria Airport.
The Weather Summaries page has more details on the potent storms that erupted in Louisiana and Mississippi on Saturday.
Meanwhile, a Pacific storm will be spreading heavy rain and mountain snow across the Northwest through Monday. Rain will spread through areas west of the Cascades, while heavy snow falls across the Cascades and northern Rockies. Strong winds will also be blasting across the region.
According to the West Regional News story, more than a foot of snow will accumulate in the Washington Cascades into Monday morning. The Oregon Cascades and the Blue Mountains will have up to a foot of snow.
The Severe Weather Center displays the storm-related watches and warnings in effect in the Northwest.
The stormy pattern in the Northwest will persist at least through mid-week before a large dome of high pressure will change the storm track into the Pacific coast. The rain from the series of storms could add to recent problems with flooding and mudslides in the Pacific Northwest. The area at risk for flooding will be west of the Cascades in Washington and Oregon.
A third, but less expansive system will be bringing snow to the higher elevations of Arizona, New Mexico and Colorado through tonight. On Monday, this storm will move east and tap into Gulf moisture, spreading rain and thunderstorms across the Deep South.
By Wednesday, this third storm sliding into the South could combine forces with the one pounding the Northwest into Monday. Rain will soak the Deep South and Eastern Seaboard, while snow and a wintry mix is possible over the interior Northeast and the Midwest.
Bitter cold and blustery winds will grip much of the eastern-third of the nation following the passage of the storm.