Winter Storm Dion Bringing Snow, Ice to the East, South, and Midwest

Winter Storm Dion, the fourth named winter storm of the 2013-14 season, will result in more snow and ice for some of the same areas impacted by Winter Storm Cleon.
(MORE: Minute-by-Minute Updates on Winter Storm Dion)

Winter Storm Dion Radar

• INTERACTIVE: Midwest Radar
• INTERACTIVE: Mid-Atlantic Radar

Northeast Forecast Sunday

Dion Ice Forecast

Northeast Forecast Sunday Night

Northeast Snow Forecast

Dion initially produced snow in Washington, California, Nevada and the Four Corners states during the first half of the weekend.
Now, Dion is spreading snow and ice from the Midwest to the Mid-South, Ohio Valley, Middle Atlantic and Northeast.
Here's a look at the forecast through the beginning of the new work week.

Megalopolis: D.C. to Boston

Washington, D.C., Baltimore and Philadelphia can expect light snow accumulations Sunday followed by a transition to sleet and freezing rain. That transition should start in D.C. in the afternoon and spreading to Baltimore and Philadelphia in the evening.
Hazardous travel conditions are possible, particularly on bridges and overpasses. This wintry mix will eventually changeover to rain in all three of these cities by midnight Sunday night (but earlier in D.C.).
A wintry mix will also develop in and around New York City Sunday night before changing to rain. The changeover will occur before the morning commute Monday except in parts of the Hudson Valley, where icy conditions may await early commuters.
For all four of these cities, it is expected to be the season's first measurable snow, meaning 0.1 inch or more of accumulation. The average date of the first measurable snow ranges from Dec. 14 in Baltimore to Dec. 18 in Philadelphia and Washington.
(MAP: Northeast Snow Forecast)
Boston and much of southern New England can expect some light snow late Sunday night before mixing with and changing to rain Monday. Only minor snow accumulations, in most cases less than an inch, are expected.

Interior Mid-Atlantic and Appalachians: Significant Ice Storm

Significant ice accumulation is possible to the lee (east side) of the Appalachians as cold air gets dammed up against the mountains.
The I-81 corridor from Virginia's Shenandoah Valley northward through Pennsylvania could see significant impacts. Accumulating ice is also possible as far south as northwest North Carolina.
Travel will likely be dangerous and power outages are possible. This includes cities such as Roanoke, Va., Hagerstown, Md. and Greensboro, N.C.