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D.C. area forecast: Snow is developing later today, with several inches probably tonight until Sunday morning



* Winter storm warning for immediate D.C. subway and south 4 pm Saturday to 1 Sunday | Winter weather advisory for northern areas 4 pm Saturday to 7 am Sunday *

8 am ̵
1; Immediate subway area upgraded to winter storm warning

Early this morning upgraded National Weather Service District, Fairfax, Prince George , Loudoun and Southern Montgomery County to a winter storm warning (from a winter weather advisory). The warning comes into effect at 4 pm Saturday, when the snow will start, up to 1 p.m. on Sunday. In this zone, the National Weather Service increased its snowfall forecast from 3 to 5 inches to 3 to 6 inches, which is in line with our forecast.


Areas during winter storm warning and winter weather advisory. (National Weather Service)

Areas north of the winter warning alert are advising during the winter weather from 16.00. Saturday to 7 on Sunday and should receive 2 to 5 inches or so snow.

TODAY'S DAILY DIGIT

A somewhat subjective assessment of today's weather, on a scale from 0 to 10.

5/10: If you are a snow lover as I am, every day is with accumulation one 10. Maybe for some it is zero? Let's go with the average.

EXPRESS FORECAST

Today: Thick clouds. Snow is developing in the afternoon. High: Near 30 to mid 30's (before snow).

Tonight: Snow, may decrease slightly after midnight. Low: 22-28.

Tomorrow: Morning snow, ending with time. Highs: Near 30 to mid 30's.

View Current Weather at The Washington Post Headquarters.

PROJECTS IN DETAIL

It has been a while since we have seen a significant snowstorm in the middle of winter. We actually have to go back to Blizzard of 2016. Although this will not compete in any way, it will be an excellent time to take advantage of cold air and, if you like snow, maximize enjoyment. It will be quiet through the morning today, but snow will increasingly fill the air when we go towards the sunset.

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Today (Saturday): It's a mostly cloudy start, but maybe just enough to let in the light. (I'll check out the comments to see how the sunrise was.) Clouds thicker through the morning, and snow can start to break up in the air. The air is dry, so it takes a while to saturate, but flakes begin to reach the ground as fast as the afternoon in the western and southwestern parts of the area and then continue eastwards from there. At sunset, most or the entire region should see snow, perhaps about an inch on the ground in spots south and west, and more like a half-inch dust or so elsewhere. High temperatures in low to mid-30s fall during freezing when snow begins. Trust : Medium


(Capital Weather Gang) (

Tonight: We continue to see snow in the evening and it should generally pick up the intensity deeper into the night. It can also sometimes alleviate, but it seems that the heaviest snow of the storm can come overnight, several inches will probably pile up through the night and untreated roads will be snow-covered and narrow. The temperature is mostly in the middle to the upper 20s. Trust: Medium

Follow us on Facebook Twitter and and Instagram ] for the latest updates. For related traffic news, check out Gridlock . Continue reading for the forecast through the weekend.

Tomorrow (Sunday): Shovels and plows seem likely to be occupied by m Accumulating snow can continue for a while, with amounts lying in three to six inch intervals for much of the local area – more south and less north. The storm would tend to slow down when we come to dinner if not earlier, but it can be a slow process to completely shut down. Even when the accumulation stops, some snow should remain in the air during the afternoon. Altitudes are near or during freezing most spots, with a range from nearly 30 to mid-30s overall. Trust: Means

Tomorrow night: Winds are gusties and some snowflakes can remain in the evening. Otherwise, it will calm down when the storm pulls away. Low range from the upper teens north and west to the middle or over the 20s in the city and southeast. Trust Means

A LOOK AHEAD

The storm is away from here Monday . Some of the upper level disturbances are lingers, but that can mean some snow showers, and skies are probably cloudy. We warm up enough to get melting going, with heights on the way to 40 or so. Trust: Medium

Nice weather is back for Tuesday . Sunny clouds and calm winds are keeping temperatures rising until the mid-40s, which should continue to drip. Trust: Medium

SNOW POTENTIAL INDEX

A daily assessment of the potential of at least 1 inch snow next week on a scale of 0-10.

9/10 19 ): This should be our biggest January snow event since 2016. Flakes are starting to fly late in the day.


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