From the ABC 7 Weather team

Washington DC Weather: Winter Storm Warning In Effect

December 10, 2013 - 08:30 AM
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Winter Storm Warning for the entire metropolitan area until 2 pm.

Snow ...heavy at times. 2"-5" total accumulation in warning areas.
Temperatures: Lower 30s
Wind: NW 5-10 mph
Clear and Very Cold.
Lows: Teens
Wind: W 5-10 mph
Partly Cloudy and Unseasonably Cold
Temperatures: Lower 30s
Wind: W 4-8 mph

Download the free Stormwatch 7 app to stay ahead of Tuesday's winter weather.

The upper level storm system we are watching is moving quickly this morning. It is a very efficient precipitation maker. While most areas will see mostly snow, there are areas where precipitation type will be an issue.

The farther north and west you are from D.C. the more likely of seeing all snow. But in Washington and points south and east, precipitation will go back and forth between types.

That makes forecasting accumulations a real challenge. We expect generally 2-5 inches will be the range, but areas with the mixed precipitation types will be on the lower end.

Impacts of this precipitation ARE FAR MORE IMPORTANT than numbers. Snow, sleet and freezing rain combined with temperatures hovering near freezing will make untreated surfaces dangerous. Skies will brighten as the snow and stuff ends this afternoon. And tonight it will get very, very cold. Snow and slush and surface water will freeze solidly.

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