470 FXUS01 KWBC 091914 PMDSPD Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 213 PM EST Fri Jan 09 2026 Valid 00Z Sat Jan 10 2026 - 00Z Mon Jan 12 2026 ...There is a Moderate Risk of excessive rainfall from parts of the Tennessee Valley to the Lower Mississippi Valley... ...There is a Slight Risk (level 2/5) of severe thunderstorms over parts of the Lower Mississippi Valley on Friday and over the Southeast on Saturday... ...There is a 0.10 inches of freezing rain possible over the Northeast on Sunday... A front extending from the Lower Great Lakes to the Southern Plains will move eastward to the Northeast Coast by early Saturday, while a wave of low pressure moves from the Lower Mississippi Valley to the Great Lakes by Saturday evening. The system will trigger rain from the Northeast to the Lower Mississippi Valley on Friday evening with the first wave. The second wave will produce snow over the Great Lakes on Saturday and rain/freezing rain over the Northeast on Saturday evening, changing over to snow by Sunday morning. Lake-effect snow will linger downwind from the Great Lakes on Sunday. Moreover, rain will develop along and ahead of the front from the Lower Mississippi Valley to the Central Appalachians. Heavy rain will develop along and ahead of the front from the Lower Mississippi Valley to the Central Appalachians. Therefore, the WPC has issued a Moderate Risk (level 3/4) of excessive rainfall over parts of the Lower Mississippi Valley to the Central Appalachians overnight Friday into Saturday morning. The associated heavy rain will create numerous areas where flash flooding events are possible, and many streams may flood, potentially affecting larger rivers. In addition, showers and severe thunderstorms will develop over parts of the Lower Mississippi Valley into the Tennessee Valley. Therefore, the SPC has issued a Slight Risk (level 2/5) of severe thunderstorms over parts of the Lower Mississippi Valley into the Tennessee Valley through Saturday morning. The hazards associated with these thunderstorms are frequent lightning, severe thunderstorm wind gusts, hail, and a few tornadoes. On Saturday, the threat of excessive rainfall diminishes over the Lower Mississippi Valley into the Tennessee Valley, while showers and thunderstorms will continue along and ahead of the front from the Mid-Atlantic to the Southeast. Meanwhile, onshore flow off the Pacific will produce coastal rain and higher-elevation snow over parts of the Pacific Northwest Friday night into Monday morning. Ziegenfelder Graphics available at https://www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php $$