Important message: When you wake up, there may not be much snow yet but

[elleng]

a period of HEAVY snow seems likely between approx 7a-midday, w/ very low visilibity and rapid accumulation. Best bet: Stay home Monday AM.

Update: https://wapo.st/3pK9B15
Posted 1108p Sunday.

Winter storm warning for several inches of snow in D.C. area Monday, falling heavily at times
We now expect 3 to 6 inches of snow in the immediate area, with more to the south. Travel could be very difficult in the morning.

* Winter storm warning for the District and adjacent counties from 1 a.m. to 4 p.m. Monday; winter weather advisory for Loudoun County and western Montgomery and western Howard counties and points north *

Key points

Precipitation to move in between midnight and 3 a.m., starting as rain but changing to sleet and then snow during the predawn hours as temperatures quickly drop.

Snow may fall heavily, especially from the District south, between around 5 a.m. and midday with temperatures falling below freezing. Travel may become very difficult with limited visibility and roads becoming snow-covered. Gusty winds are also expected.
The snow should taper off during the mid-afternoon hours from northwest to southeast. Total amounts of 3 to 6 inches are most probable in the immediate area, with more south and less north.

https://www.washingtonpost.com/weather/2022/01/02/dc-snowstorm-accumulation-map/?

[IronLionZion]

1. Good that it's in the morning

so people who can work from home would just stay home. That should minimize road accidents.