


Prognostic Meteorological Discussion
Issued by NWS
Issued by NWS
131 FXUS01 KWBC 042001 PMDSPD Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 400 PM EDT Sat Oct 04 2025 Valid 00Z Sun Oct 05 2025 - 00Z Tue Oct 07 2025 ...A storm system will bring mountain snow, locally heavy rain, gusty winds and much cooler temperatures to portions of the western and central U.S... ...Above average temperatures will advance eastward into the Great Lakes and Northeast on Sunday and Monday... ...Remaining unsettled with scattered areas of heavy rain and isolated flash flooding for the coastlines of the central Gulf and Southeast... A relatively strong upper level storm system will track eastward from the central and northern Rockies tonight into the north-central U.S. by Sunday morning. Colder temperatures filtering in behind this storm system will allow for increasing coverage of mountain snow from the higher terrain of western Montana into northwestern/northern Wyoming. Accumulations of 6 to 12+ inches are expected, locally higher for higher elevations, but snow levels will fall to into the 5000-6000 foot range for portions of western Montana tonight, where lighter accumulations are expected. A corresponding surface low will track through the Great Plains into northern Minnesota by early Sunday with a cold front extending south and west. Much colder air will filter into the northern Rockies and central to northern Plains as the cold front moves through, marking 24 to 48 hour high temperature drops of 20 to 30 degrees. On the warm side of the cold front, after record breaking heat on Saturday across the Upper Midwest and Great Lakes, above average temperatures will translate eastward into portions of the Midwest and Northeast. High temperatures for Sunday and Monday are expected to be roughly 10 to 20 degrees above average from the north-central U.S. to the Northeast. While the potential for record high temperatures will be lower for these areas compared to Saturday over the Upper Midwest and Great Lakes, there could still be a few records that get broken from the middle Mississippi Valley and Great Lakes into the Northeast. Gusty winds will also accompany the storm as it tracks toward the east with southerly winds gusting into the 30-50 mph range from the central Plains into the Upper Midwest tonight. Winds will lower but remain gusty into the Great Lakes and Midwest on Sunday. By Sunday evening, thunderstorms are expected to break out along the from from Kansas into Wisconsin and the U.P. of Michigan. Severe thunderstorms and locally heavy rain may result in spotty flash flooding with these storms which will continue into Saturday night. A large ridge of high pressure over the East and quasi-stationary front to its south, extending from the Bahamas into the Gulf of America, will maintain unsettled weather from the central Gulf Coast to the coastline of the the Southeast and Florida. Scattered showers and thunderstorms, some with locally very heavy rain, will remain in the forecast for these regions over the next 2 to 3 days. In addition, gusty winds may lead to concerns for mariners and beachgoers, with rip currents and high surf possible. Otto Graphics available at https://www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php $$