Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 311 PM EST Sun Jan 24 2021 Valid 00Z Mon Jan 25 2021 - 00Z Wed Jan 27 2021 ...Snow for the Sierra-Nevada Mountains, Great Basin, Central/Southern Rockies, and the Southwest through Tuesday... ... Significant Snow and Ice (rain/freezing rain) Accumulation Potential across portions of the Central Plains and Midwest through Tuesday morning... ...Moderate to Heavy rain possible over the Middle Mississippi/Ohio Valleys into the Tennessee Valley through Tuesday morning... ...There is a Slight Risk of severe thunderstorms over parts of the Southern Plains... Storm over the Southern Rockies into the Southern Plains will move eastward to the Mid-Atlantic/Northeast by Tuesday evening. The system will produce snow and lower-elevation rain over parts of the Great Basin and the Southwest on Sunday evening. Heavy snow will develop across Kansas Monday morning and spread northeastward through Nebraska, Missouri, Iowa, and Illinois through Tuesday. Snow accumulations exceeding 4" are expected from Central Kansas through Southern Michigan. Locally higher amounts exceeding 12" are possible across Northern Kansas, Northwest Missouri, Southeast Nebraska, and Southern Iowa. Some of the snow will be very heavy with snowfall rates up to 2"/hr; however, snowfall's exact location is still uncertain. Additionally, rain/freezing rain will develop across parts of the Middle Mississippi Valley into the Ohio Valley. Freezing rain accumulations across Northern Kansas to Western Ohio will be up to 0.10" are possible. Some local maxima up to 0.25" are possible from Northern Missouri to Central Indiana on Monday into Tuesday morning. The snow and rain/freezing rain will contribute to hazardous driving conditions. Moreover, showers and thunderstorms will develop over the Southern Plains that will move into the Lower Mississippi Valley on Monday morning and into the Tennessee Valley by Monday evening. The SPC has issued a Slight Risk of severe thunderstorms over parts of the Southern Plains on Sunday into Monday morning. The main hazards with the severe thunderstorms are frequent lightning, damaging severe wind gust, and hail; tornadoes will also be possible. In the meantime, a front over the Great Lakes will move eastward to the Lower Great Lakes/Northeast and dissipate on Monday. The system will produce light snow over the Great Lakes and parts of the Ohio Valley on Sunday evening that will begin to dissipate overnight Sunday. Rain and showers/thunderstorms will develop over parts of the Ohio/Tennessee Valleys into parts of the Lower Mississippi Valley. Rain will move into parts of the Mid-Atlantic overnight Sunday, too. Meanwhile, a front over the West Coast will move southward to Southern California by Monday morning and into Southern Plains/Northeastern Mexico by Tuesday evening. The system will produce coastal rain and higher elevation snow along the West Coast on Sunday evening. Snow and lower elevation rain will develop over parts of the Southwest, Great Basin, and Central/Southern Rockies on Monday. Overnight Monday, the rain and snow will wane over most of the Pacific Northwest and California. Yet, the snow will continue over the Sierra-Nevada Mountains through Tuesday morning. The snow and lower elevation rain will continue over parts of the Southwest, Great Basin, and Central/Southern Rockies on Tuesday. More snow develops over parts of the Central Plains on Tuesday evening. Furthermore, another front will move onshore over the Northwest on Tuesday evening, producing more coastal rain and higher elevation snow into parts of the Northern Intermountain Region. Out East, the Southern Rockies into the Southern Plains storm will move into the Mid-Atlantic by Tuesday evening. The system will produce snow over parts of the Northeast into the Northern Mid-Atlantic. Rain with embedded thunderstorms will move into the Southern Mid-Atlantic, with showers and thunderstorms moving into the Southeast. Along the rain/snow line, there will be pockets of rain/freezing rain over parts of the Mid-Atlantic into the Northeast. Ziegenfelder Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php