Update: Light snow arrives in Washington, D.C. area

* Winter weather advisory for N Montgomery, N Howard, Loudoun, Frederick and Carroll counties and points west and northwest through 8 p.m. *

Overview: Snow or a mixture of snow, sleet, and rain is likely into this evening. Snow is most likely in colder suburbs to the north and west of the beltway, with accumulating snow (1-2 inches) mostly focused in northern Montgomery, northern Howard, Loudoun and Frederick counties (and to the northwest). Inside the beltway and to the southeast, snow, sleet and rain will fall, with little or no snow accumulation.

3:40 p.m. update: From Fairfax county into southern Montgomery county and to the south and east (including D.C. and Prince George’s conty), precipitation has changed to mostly sleet and rain. In northern Montgomery county, Loudoun county and to the northwest, precipitation remains mostly snow and sleet, with some areas getting accumulations of 1 inch or a bit more.

Photos and reports indicate slick travel on roads developing around Leesburg and Frederick and to the west, so please allow extra time for travel and use caution. With darkness settling in soon, conditions may deteriorate even a bit more. Radar does show the back edge of precipitation now north of Charlottesville, meaning precipitation should end by 6-8 p.m. in most spots.

2:50 p.m. update: Winter weather advisory extended into northern Howard and northern Montgomery county for up to 1-2 inches of snow.

2:15 p.m. update: Snow, mainly north and west of the beltway, and a mix of precipitation elsewhere, continues. Where precipitation is mixing with or alternating between sleet and rain, snowflakes are most likely during heavier bursts of precipitation. To some degree, the airport observations tell the tale: Reagan National Airport has rain and 38, Dulles Airport has snow and 34.

For the most part, in areas north and west of the beltway getting snow, accumulation is occurring mainly on grassy areas and car tops (places like Germantown, Rockville, and Gaithersburg). However, a few reports have indicated a little sticking on roads during heavier snow bursts.

12:50 p.m. update: Radar shows light snow and flurries (mixing with rain from D.C. and to the southeast) have advanced into the immediate metro region and our legions of Twitter reporters provide ground truth. Snow or a mix is falling throughout northern Virginia, Prince George’s county, and flurries have also been spotted in the District and Bethesda. This activity will continue to advance into our northern suburbs through 2 p.m..

Temperatures are mainly from 35-40 so don’t expect a lot of sticking except in the outlying coldest locations (where temperatures will drop into the low 30s), and snow max mix with or alternate between sleet and rain, mainly inside the beltway and to the southeast through the afternoon.

Per our earlier update, accumulating snow is most likely in northwest Montgomery, Loudoun and Frederick counties, though enough snow may fall to whiten the ground elsewhere.

Select snow reports/photos

@capitalweather beautiful snow covered pasture in The Plains, Va twitter.com/stevenadkins/s…

— Steve Adkins (@stevenadkins) December 24, 2012

@capitalweather Snow fall in Hume, VA twitter.com/dearle12/statu…

— David Earle (@dearle12) December 24, 2012

@capitalweather Martinsburg, WV twitpic.com/bozcwa

— Ryan Sullivan (@rsscully) December 24, 2012

@capitalweather Heavy snow in Western Howard! twitter.com/johnboulin/sta…

— John Boulin (@johnboulin) December 24, 2012

@capitalweather Leesburg near wegmans twitter.com/jhatem/status/…

— jay hatem (@jhatem) December 24, 2012

Bit of accumulation in Leesburg by airport @hbwx @capitalweather twitter.com/NoVaTyler/stat…

— Tyler Barton (@NoVaTyler) December 24, 2012

@capitalweather yup, North Bethesda, MD. twitter.com/livlab/status/…

— Livia Labate (@livlab) December 24, 2012

@capitalweather Purcellville, va twitter.com/gchungo/status…

— Grant Chungo (@gchungo) December 24, 2012

@capitalweather peaceful snow in Shenandoah county twitter.com/Kinetic107/sta…

— N. Greco (@Kinetic107) December 24, 2012

@capitalweather beautiful steady snowfall in #Gaithersburg for the last half hour.Starting to stick a tad.

— Ryan Spiegel (@RySpiegel) December 24, 2012

@capitalweather snowing in Chevy Chase MD. Four-month-old daughters’s first snowfall

— mab (@mabnh) December 24, 2012

@capitalweatherHeavy snow in western Loudoun / Purcellville!It’s sticking!!! #weatherwatchers #snow #winter #whitechristmas.

— KPJ the DCA Liberal(@KPJDCA) December 24, 2012

Comment below with reports from your location, and Happy Holidays!

Jason is currently the Washington Post’s weather editor. A native Washingtonian, Jason has been a weather enthusiast since age 10.
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