WASHINGTON — A significant winter storm will impact the DC area Wednesday, arriving between 4 AM and 8 AM as the morning commute gets underway. Snow could be moderate to heavy at times throughout the morning. A wintry mix follows the snow in the afternoon, making travel even more difficult.

First Call For Snowfall For Wednesday 2/20, Published 5 PM Mon 2/18
WUSA

A Winter Storm Warning has been issued for D.C. Metro from Wednesday 1 AM until  7 PM. Winter Weather Advisories have been issued for some of our southeastern counties -- including southern Maryland and into the northern neck. App users click here to view.


QUICK FORECAST:.
Tuesday: Partly cloudy & cold. High: 44.
Tuesday Night: Increasing Cloudiness & cold. Snow arrives by dawn. Low: 29.
Wednesday: Cold with Snow to a PM Mix, PM Rain S & E. High: 33.

FORECAST DISCUSSION:

We're bracing for a big winter storm Wednesday that will start as snow and end as a wintry mix and rain.  Snow could be moderate to heavy at times throughout the morning. In the afternoon, it will transition from snow to a wintry mix with sleet and freezing rain. DC will transition to a cold rain by  6 PM Wednesday, but the icing and freezing rain will last into the evening along the Maryland-Pennsylvania border.

TIMING:

Snow will start between 4 AM and 8 AM.  The transition to snow to mix will start around noon for most areas. 

Timeline Winter Weather Wednesday
Timeline for winter weather Wednesday.
WUSA 9 Weather

ICE - The Other Threat That Shouldn't Be Ignored

The wintry mix in the afternoon includes sleet and freezing rain.  Freezing rain may cause ice to accumulate on sidewalks, roads, trees and power lines causing power outages and trees to fall.  The northern suburbs could see up to .10" of ice and some spots up to .20" of ice or more.  A light glazing is expected around D.C. 

Read more in the link below, which breaks down timing & city-by-city impacts

RELATED: More on Wednesday's winter weather threat

DETAILED FORECAST:
Tuesday: Partly cloudy & cold. Highs: 39 - 44. Winds: N - 10.
Tuesday Night: Increasing Cloudiness & cold. Snow arrives by dawn. Lows: 24 - 30. Winds: ENE - 10.
Wednesday: Cold with Snow to a PM Mix, PM Rain S & E. 3" - 6" in the Metro. Highs: 30 - 35. Winds: ENE - 10.

EXTENDED FORECAST :

Showers will linger Thursday morning on the tail end of a winter storm system. By Thursday afternoon, we dry out and some sunshine returns for a rather pleasant afternoon despite a breeze. Highs will stay in the 50s Thursday through Saturday, and climb to near 60 by Sunday. On the downside, the weekend will be a bit unsettled with some afternoon rain & showers Saturday, and more showers and rain for Sunday.

READ MORE: WINTER STORM BREAKDOWN: Timing, How Much, and Impacts

Thursday: AM showers, some PM sun. Highs: Mid 50s.
Friday: Partly sunny and comfortable. Highs: Mid 50s.
Saturday: Increasing clouds with some PM light rain. Highs: Mid 50s.
Sunday: Mostly cloudy with some light rain and showers. Highs: Around 60.





RECAP: DC's Top Weather Events of 2018


Twitter Feeds:

Topper Shutt:  @TenaciousTopper

Melissa Nord: @MelissaNordWx

Howard Bernstein: @hbwx

Miri Marshall: @MiriWeather