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Short Range Public Discussion
(Caution: Version displayed is not the latest version. - Issued 0759Z Jan 22, 2018)
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Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 259 AM EST Mon Jan 22 2018 Valid 12Z Mon Jan 22 2018 - 12Z Wed Jan 24 2018 ...There is a slight risk of severe thunderstorms over parts of Eastern Texas and the Lower Mississippi Valley... ...Winter storm system to continue producing heavy snow, rain and freezing rain from the Central Plains to the Upper Mississippi Valley, Great Lakes and the Northeast... ...Heavy rain and snow possible over parts of the Pacific Northwest/Northern California and Northern New England Coast... Blizzard Warnings, Winter Storm Warnings and Winter Weather Advisories are in effect from eastern Colorado to Upper Michigan - with a few counties across upstate New York, Vermont and northern Maine. This storm will have significant impacts on transportation; with many roads with treacherous or impossible driving conditions. Widespread snow and rain will continue to spread across the central and northern states as a winter storm lifts northeast through the Midwest today and through the Northeast by Wednesday. The snow will be heavy at times over portions of the Central Plains and Upper Mississippi Valley throughout the day before tapering off over the Central Plains tonight. Snow will develop over the Upper Great Lakes and northern New England this afternoon and will expand south and east to the lower lakes and Northeast continuing into Tuesday and Wednesday. A narrow transition zone along the front will support freezing rain before changing over to snow. Rain will expand into the Ohio Valley/Lower Great Lakes this morning, into Southern New England by this evening and into the Northern Mid-Atlantic by early Tuesday. In the transition zone between the rain and snow, rain/freezing rain will develop in bands across the Great Lakes today into New England overnight Monday into Tuesday. Showers and thunderstorms will move to parts of the Ohio Valley southward to the Eastern Gulf Coast and to parts of the Mid-Atlantic into the Southeast by Tuesday morning. Out West, upper-level energy will push inland over the Pacific Northwest spreading rain and mountain snow from the Washington/California coast to the Northern Plains by Tuesday. Snow is expected to be heavy over the Cascades and Northern Intermountain Region over the next few days. Onshore flow will increase Tuesday into Wednesday as the another Pacific system approaches the Northwest. Campbell Graphics available at