Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 308 AM EST Sat Dec 14 2019 Valid 12Z Sat Dec 14 2019 - 12Z Mon Dec 16 2019 ...A low pressure system will continue to spread wet weather up the East Coast while wintry weather will be confined well inland... ...Another low pressure system over the western U.S. will likely bring widespread wintry weather from the central Plains toward the Northeast Sunday and Monday... A low pressure complex continues to develop along the East Coast this Saturday morning while bringing cold rain up the Mid-Atlantic into New England with pockets of freezing rain over the interior sections. The system should become more consolidated as it intensifies and moves northward across New England later today into tonight. Meanwhile, colder air behind the storm will change the rain to wet snow starting from the Great Lakes and gradually progressing eastward into the central Appalachians, upstate New York before tapering off across northern New England on Sunday. Over the western U.S., another low pressure complex is organizing as Pacific moisture associated with an upper-level trough produces valley rain and mountain snow across many areas of the northern and central Rockies as well as the Intermountain region this Saturday morning. More than a foot of snow can be expected over the higher elevations of the Colorado Rockies through this weekend before the system exits into the Plains on Monday. It appears that wintry precipitation will expand across the central Plains on Sunday ahead of the intensifying system. By Monday morning, a wide swath of snow is expected to impact areas from the central Plains through the Midwest and lower Great Lakes, continuing across the central Appalachians into the northern Mid-Atlantic. Freezing rain or mixed precipitation is expected farther south from the central Plains through the Ohio Valley Monday morning. Meanwhile, thunderstorms appear likely across the Deep South ahead of a strong cold front. Meanwhile, moisture ahead of the next Pacific front will spread high-elevation snows and lower-elevation rains across northern California and western Oregon today, gradually tapering off on Sunday. Kong Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php