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Wintry mix likely for DC Saturday afternoon into Saturday night

A wintry mix of snow and rain is likely Saturday evening

The cold is in place and now areas north and west of D.C. are under a Winter Weather Advisory. Higher totals are expected farther north closer to the Maryland and Pennsylvania boarder.


High pressure will move overhead tonight and move off the northeast coast Saturday morning. Clear skies, light winds and colder temperatures can be expected by Saturday morning with lows in the 20s in the suburbs to low 30s.

A disturbance moving through the southwestern U.S. as of Friday evening, will move across the country to the Mid-Atlantic by Saturday afternoon. In the wake of the colder air behind today’s cold front, precipitation is expected to be mixed with areas of snow around the DC Metro and points northwest and rain south and east of DC.

Timing brings precipitation in by 3-4pm and exits the system around midnight, bringing around an 8-hour period of snow and rain. Mixing will be possible with temperatures aloft up to 5000 feet right around freezing. We're thinking a trace to 2 inches is possible around the Metro, a mix to rain south and east and 1-3" of snow north and west. Here's a look at the current map.

Possibility for higher totals?

A strong upper-level jet will be in place leading to extra lift over our area and the potential for heavier precipitation rates. If this occurs there could be some heavier banding allowing for slightly higher snowfall totals. Upwards of 2-3 inches would be possible closer to DC and possibly higher amounts to 4 inches if the band set up north and west. Currently that is a low-end possibility but make sure to stay tuned for forecast updates this evening into Saturday.

Given the mild surface temperatures and morning sunshine, we are thinking the majority of snowfall accumulations will be limited to the grass but be sure to exercise caution if you have evening plans Saturday. Sunday morning may start off with patchy ice. Most of our area will be below freezing early in the morning.

Sunday will feature plenty of melting with temperatures back around 50 degrees under mostly sunny skies and 70s will return by early next week.


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