A strong storm will bring heavy snow to the Cascades, Sierra and Upper Midwest and snow, rain and freezing rain to much of the eastern half of the country.
4-8 inches of snow are likely for parts of the Upper Midwest, Great Lakes and the Northeast with isolated areas of a foot of snow possible downwind of the lakes. Freezing rain will extend from parts of the Southern/Central Plains across the Midwest and into the Mid-Atlantic/Central Appalachians.
Heavy snow continues for the Sierra Nevada, with snowfall accumulations of 8-12 inches probable.
Travel is likely to be impacted on Interstate 80, particularly at elevations above 2,000 feet. Higher elevations of the Sierra could receive up to 2 feet of snow through tonight.
Portions of the northern, central and southern Rockies will pick up several inches of snow through Friday. Valley locations of the interior West could also receive light accumulating snow, including Salt Lake City and Albuquerque, New Mexico.
Winter storm warnings have been posted for portions of the Northern Plains and upper Midwest, including from eastern South Dakota into Minnesota, Iowa and northwestern Wisconsin.
Winter weather advisories have been issued for a broad area of the Central and Southern Plains, mid-Mississippi Valley, Midwest and Great Lakes, while a few winter storm watches are in effect for parts of the eastern Dakotas, the Upper Peninsula of Michigan and northern and eastern Lower Michigan.
Another strong system will bring more heavy snow to the Pacific Northwest Saturday morning. 8-12 inches of snow for much of the Cascades with isolated areas of a foot and a half possible, while 1-2 feet of snow are expected for the Olympic Mountains.
Warmer than normal temperatures will continue for parts of the Lower
Mississippi/Tennessee Valleys and Southeast with temperatures 15-25 degrees above normal through Saturday.
Arctic air will descend back into the Northern Plains/Upper Midwest behind the Eastern U.S. storm this weekend as temperatures are likely to be 20-30 degrees below normal in some places.
NWS Weather Prediction Center College Park MD – 16 Jan 2020
Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php
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January 17, 2020 at 09:58PM