From the ABC 7 Weather team

First snow of the season looking likely early Tuesday

November 25, 2012 - 07:37 AM
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It's chilly outside now and that will be followed by a little bit of snow next week. Where will the most snow fall?

Winter temperatures are sure coming on quickly across the U.S., although snowfall is at a minimum compared to average for late-November. Heading into the first half of the work week, the prospects of the first accumulating snow of the season are looking likely in D.C.’s northern and western suburbs.

snowdeparture
One of the coldest mornings of the season is underway with middle 30s in the nation’s capital and a few scattered 20s in the suburbs. It might not come as a surprise with temperatures dipping into the 30s that a touch of snow is on the horizon.

 

This storm will be quite weak; it’s already in the early stages across British Columbia as highlighted in the image below. This weak upper-level ripple will move south and east while a surface low pressure develops south of the wave in the southern Plains. The low will move into the Southeast early Tuesday and then off the Mid-Atlantic Coast Tuesday afternoon.
 
watervapor

The onset of the precipitation will likely be overnight Monday before ending by midday Tuesday the way it looks in most of the latest guidance. Due to enough cold air at the surface, a light northeast wind and dry air, snow will likely overspread the entire region before sunrise and then mix with rain inside the Capital Beltway.

Due to the fast-nature of the storm and limited amount of moisture pulling north of the low, only very light accumulation looks most likely north and west of the District. A half to one inch is possible in the lower elevations with up to 2 inches possible in the Blue Ridge. The area highlighted on the image below stands the best chance at seeing these minor accumulations.
snowpotential
Still, this will definitely be a conversational snow, especially considering the total for the season last year was only 2.0 inches in the nation’s capital.

Stay with ABC7 and WTOP Radio for the latest forecasts.

 

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