Prognostic Meteorological Discussion
Issued by NWS
Issued by NWS
327 FXUS01 KWBC 071959 PMDSPD Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 258 PM EST Fri Nov 07 2025 Valid 00Z Sat Nov 08 2025 - 00Z Mon Nov 10 2025 ...Heavy snow over the Lake Superior shoreline on Saturday into Sunday... ...There is a Slight Risk (level 2/5) of severe thunderstorms over parts of the Tennessee Valley on Friday... A front extending from the Lower Great Lakes to the Southern Plains will move off the Eastern Seaboard by Saturday afternoon. Showers and severe thunderstorms will develop along and ahead of the front over the Tennessee Valley. Therefore, the SPC has issued a Slight Risk (level 2/5) of severe thunderstorms over parts of the Tennessee Valley through Saturday morning. The hazards associated with these thunderstorms are frequent lightning, severe thunderstorm wind gusts, hail, and a few tornadoes. Light rain will develop over the Northern Mid-Atlantic into the Northeast, tapering off by Saturday morning. A few showers will linger over the Northeast through Saturday afternoon. In contrast, showers and thunderstorms will develop near the Gulf Coast. An area of low pressure over the Northern High Plains will move southeastward to the Middle Mississippi Valley by Saturday afternoon and then deepen as it moves to the Northeast. The associated front moves southward to the Gulf Coast by Sunday morning and eastward to the East Coast by Sunday evening. The system will produce rain and snow over parts of the Northern High Plains/Northern Plains on Friday night. The storm will produce a swath of heavy snow over parts of the Northern Plains overnight Friday into Saturday afternoon. As the low pressure moves into the Ohio Valley, the storm will deepen, producing rain over the Ohio Valley and snow over parts of the Upper Mississippi Valley/Upper Great Lakes. Overnight Saturday into Sunday, heavy snow will develop over parts of the Lake Superior shoreline. Light to moderate snow will grow over the rest of the Great Lakes early Saturday into Sunday evening. Meanwhile, in the wake of the storm, cold high pressure will move southward out of Central Canada into the Plains on Sunday. Showers and thunderstorms will develop along the front over the Southern Mid-Atlantic on Sunday. Rain will develop over parts of the Mid-Atlantic into the Northeast on Sunday. Light snow will develop over parts of northeastern New York State and Northern New England on Sunday and persist into Sunday evening. Elsewhere, an approaching front over the Eastern Pacific will produce light rain along parts of the Northwest Coast by Sunday evening. Ziegenfelder Graphics available at https://www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php $$