SNOW UPDATE: We've fined-tuned our forecast and now expect the heaviest snow amounts

Thursday night north and west of the immediate DC area. 2" seems most likely right around town.
This is a fast-moving event...snow mostly falling between midnight and 5a. But snow + falling temps mean slick, untreated roads for Friday AM commute - esp in neighborhoods. School delays/closures LIKELY. /

*The snow should develop about midnight and end by about 5 a.m. Friday.

Amounts may vary between about one and four inches over the region, but around two inches should be most common. Because temperatures will fall into the 20s as the flakes fall, many roads will become slick and treacherous.

There’s the possibility of a brief burst of heavy snow between about 1 and 3 a.m., falling at the clip of about an inch an hour, limiting visibility and making travel difficult.

https://www.washingtonpost.com/weather/2022/01/06/dc-maryland-virginia-snow-forecast/?