Quick Coating of Snow Likely Predawn Tuesday

An arctic front will pass through the Washington Region between 4 and 7 AM Tuesday. Surface convergence along the front aided by a strong upper-level trough should provide enough lift for a line of snow showers.  The latest high-resolution models are currently suggesting that the front could produce a quick burst of moderate snow, with a coating to upwards of one inch potentially accumulating in a relatively short period of time (one to two hours).

Winter Weather Advisories may be issued by the National Weather Service for the morning commute (Tuesday).

Temperatures will be at or just below freezing during the event with snow-covered roadways possible.

Then all eyes turn to Thursday night and Friday when the next system may impact our region with rain and snow.  Details are way too murky this far out to even speculate. Let’s get through Tuesday morning first.


Bust Alert: Coastal Low will Likely Rob Moisture from DC Area

Last night’s run of the Canadian and European had me hopeful for a solid one to two-inch snowfall across the Washington Area.  After looking at this evening’s latest runs of the models I suspect this system is going to be a massive bust, and a huge disappointment for snow-lovers across our area.

Two sets of images below are from the European Ensembles and paint the depressing, dismal scenario of the famous “Snow-hole” over D.C.

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Two Chances of Snow MLK Day through Wednesday

The Martin Luther King Holiday will feature increasing clouds with a period of snow flurries during the morning hours east of Washington.  Light snow or flurries may develop across the interstate 95 corridor including DC and Baltimore during the afternoon hours Highs on Monday will remain in the 20s across our region, and any snow flurries could cause slippery conditions on untreated roadways.

The next period of accumulating Snow is likely across our region Tuesday evening continuing into the day on Wednesday as a slow-moving cold front and upper-level jet streak passes through the Mid-Atlantic states.

  • The Ensembles continue to show a great deal of variance in potential snowfall amounts with some individual members dropping around an inch and other members dropping nearly a half-foot.

Latest European Ensembles showing 50 different accumulation outcomes in the DC Region:

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