The Washington Post

Light snow on track for Friday afternoon and evening

Friday snow potential forecast, second call.

Here are some key points:

* Start time is most likely mid-to-late afternoon, between 2 and 5 p.m.

* Snow intensity should mainly be light, but some moderate bursts are possible, reducing visibilities.

* Given temperatures in the 20s, snow falling will stick to untreated roads and will aggravate the PM commute. Leave early if possible.

* This is not Commutageddon. Snow will not be crippling and heavy snow is not likely.

* The mountains will rob this storm system of some of its moisture and snow may be spotty and/or slow to get started particularly in the D.C. metro area and Virginia piedmont (D.C. snow hole).

* There are scenarios for more or less snow. 1) As little as a dusting if less moisture makes it across the mountains than forecast. 2) If the storm is a bit juicier, given the fluffy nature of the snow, it wouldn’t take much to get 2 inches or a little more.

* This is a fast moving storm. Snow should fairly quickly wind down between 7 and 10 p.m.

We will have more details and updates tomorrow.

Jason is the Washington Post’s weather editor and Capital Weather Gang's chief meteorologist. He earned a master's degree in atmospheric science, and spent 10 years as a climate change science analyst for the U.S. government. He holds the Digital Seal of Approval from the National Weather Association.

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