Lake effect “snow streamer” dusts northern suburbs; more possible this afternoon


Radar grab from around 10:30 a.m. when snow streamer stretched from Lake Erie into central Maryland (between Columbia and Baltimore)

Through mid-morning, the snow showers were heavy enough to cover roads in Carroll county and along the Howard and Baltimore county line. The snow showers and flurries even reached as far south as Charlottesville, where roads were briefly whitened this morning.

A few new show showers have moved into Frederick county, which already was dusted by snow showers early this morning (Twitter and Facebook followers reported a dusting in New Market and Frederick).


Area colored in red is an indicative of “vorticity maximum” or region of spin in the atmosphere that will move through the region this afternoon, sustaining snow showers forming over Lake Erie. (StormVistaWxModels.com)

I can’t entirely rule out the possibility of a steadier snow shower reaching into the District and close-in suburbs, but odds are just 20%. More likely, we’ll just have alternating periods of clouds and sun, with perhaps a few flakes occasionally flying around.

But in places like western Loudoun, Frederick, Carroll, western Montgomery, Howard, and Baltimore county, snow showers may briefly reduce visibility and slicken roads. We’ll post updates to Twitter and Facebook as needed.

Related: Recap: Lake enhanced snow streamers dust D.C.

Jason is currently the Washington Post’s weather editor. A native Washingtonian, Jason has been a weather enthusiast since age 10.

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