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Short Range Public Discussion
(Caution: Version displayed is not the latest version. - Issued 0749Z Dec 10, 2017)
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Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 249 AM EST Sun Dec 10 2017 Valid 12Z Sun Dec 10 2017 - 12Z Tue Dec 12 2017 ...Locally heavy lake effect snowfall to continue downwind of the Great Lakes... ...Critical fire weather persisting across southern California... Relatively quiet weather will be in store for much of the country as a winter storm continues to pull away from the Northeast Sunday morning. A quick moving and moisture starved upper level disturbance will bring a chance of light snow showers to the Northeast today/tonight but the greatest snowfall accumulations will be east of lakes Erie and Ontario due to lake effect snow where local totals up to a foot are forecast into Monday. Heavy lake effect snow accumulations will also be possible across the Michigan U.P. Monday night into Tuesday behind a quick moving clipper system. This clipper is expected to drop into the north-central U.S. tonight bringing light snow, 1 to 3 inches, to northern Minnesota and Wisconsin by Monday afternoon. Regarding temperatures, the East Coast will be 5-15 degrees below average today with some moderation on Monday. Most of the Plains will be 10 to 25 degrees above average today and Monday with westerly to northwesterly downslope winds at the surface. Winds will also be gusty at times, especially on Monday after the passage of a cold front tied to the aforementioned clipper system. These winds will also generate dry conditions leading to an elevated risk for wildfires extending throughout parts of the southern and central High Plains through Monday. The greater risk of wildfires will be across California though, where critical fire weather conditions will persist through at least Monday given continued strong Santa Ana winds and low relative humidities. Otto Graphics available at