Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 1132 AM EST Sat Dec 14 2019 Valid 00Z Sun Dec 15 2019 - 00Z Tue Dec 17 2019 ...A low pressure system will continue to spread wet weather through the Northeast Saturday/Sunday with wintry weather confined well inland... ...Another low pressure system will bring widespread wintry weather from the central Plains toward the Northeast Sunday into Tuesday... ...Gusty northeast winds across southern California Monday into Tuesday... A low pressure complex continues to develop along the East Coast this Saturday afternoon while bringing cold rain into the Northeast. The system should consolidate as it intensifies and moves northward across New England through Saturday night. 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 Intermountain West this Saturday afternoon. 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 beginning late Saturday in the central High Plains but in earnest on Sunday as the low consolidates in the southern Plains. By Monday morning, a wide swath of snow is expected to impact areas from the central Plains through the Midwest, lower Great Lakes, into the northern Mid-Atlantic states which invades southern New England late on Monday. 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 as a warm front leads to increasing warmth and unstable conditions. In the wake of the front, a strong high builds into the Great Basin setting up a dry, gusty northeast flow across California on Monday and Tuesday, with the promise of cool, low-end Santa Ana winds. Due to recent rains, fire weather danger looks low per guidance from the Storm Prediction Center. Roth/Kong Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php