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Short Range Public Discussion
 
(Caution: Version displayed is not the latest version. - Issued 1946Z Nov 18, 2014)
 
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Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 246 PM EST Tue Nov 18 2014 Valid 00Z Wed Nov 19 2014 - 00Z Fri Nov 21 2014 ...Heavy lake effect snow possible downwind from the Great Lakes... Lake effect snow will develop downwind from the Great Lakes ahead of a clipper system over the Upper Midwest moving eastward to the Great Lakes on Tuesday evening and in the wake of the storm on Thursday morning. Meanwhile, a fast moving storm over the Upper Midwest will move eastward to Eastern Ontario/Western Quebec by Thursday morning. The system will produce light snow over parts of the Upper Mississippi Valley on Tuesday evening. As the storm moves over the Great Lakes, lake enhanced snow will develop over Great Lakes on Wednesday into Thursday morning. A Pacific storm just off the West Coast will move into an upper-level ridge over the West Coast and dissipate. The upper-level energy will move inland to the Great Basin by Thursday. The energy will aid in produce rain and highest elevation snow over parts of Northern California by Wednesday morning. The rain and highest elevation snow will move into the Pacific Northwest by Wednesday evening into Thursday. Light snow will also develop over parts of the Northern Intermountain Region by Thursday morning. Elsewhere, return flow off the Western Gulf of Mexico will trigger scattered light rain over parts of Southern Texas on Thursday morning. Ziegenfelder Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_wbg.php