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Posted at 11:47 AM ET, 01/03/2012

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)
Strong flow from the northwest over Lake Erie has produced lake effect snow showers that have reached as far southeast as northern Anne Arundel and Prince George’s county. And additional flurries, snow showers are possible this afternoon, mainly north and northwest of the District.

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)
Additional activity, mainly north and northwest of the District, is possible into the afternoon as cold winds continue to flow over the relatively warm Lake Erie, sustained and/or enhanced by an upper level disturbance dropping south.

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.

By  |  11:47 AM ET, 01/03/2012

Categories:  Latest, Winter Storms

 
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