Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 400 PM EDT Sun Oct 26 2025 Valid 00Z Mon Oct 27 2025 - 00Z Wed Oct 29 2025 ...Pacific storm system continues to bring lower elevation rain and hazardous mountain snow to portions of the Northwest U.S. through Monday... ...Unsettled weather and cool temperatures will impact much of the eastern Gulf Coast region and Southeast U.S. going through Monday, which will include concerns this evening and overnight for some additional severe weather and flash flooding concerns... ...A new storm system will organize across the Middle and Lower Mississippi Valleys by midweek... A storm system impacting portions of the Pacific Northwest and northern California will move through the Great Basin and interior of the Northwest through Monday which will bring additional focus for lower elevation rainfall, and locally heavy accumulating snow for the higher elevations. In fact, portions of the northern Rockies may see as much as 12 to 18 inches of new snowfall by late Monday as a combination of Pacific moisture and multiple waves of low pressure traversing a frontal boundary crosses through the Intermountain Region. This system will also be spilling out across the northern and central Plains on Monday, and showers and thunderstorms are expected to break out along a cold front with a focus on the Dakotas. By Tuesday, this cold front will be sweeping well to the east across much of the Plains region, as fairly strong high pressure builds behind it across the Intermountain West. This will allow conditions to gradually dry out, but colder temperatures will follow with high temperatures as much as 10 to 15 degrees below normal across much of the Northwest U.S. over the next couple of days. Meanwhile, a slow-moving storm system stretching from the Lower Ohio Valley and Mid-South down the central Gulf Coast will continue to gradually eject off to the east over the next couple of days, but with low pressure becoming more focused near the eastern Gulf Coast and then consolidating offshore of the Southeast U.S. on Tuesday. In the short-term going through this evening and overnight, areas of heavy showers and thunderstorms will continue to impact areas of especially southern Alabama and into the Florida Panhandle where some localized areas of severe thunderstorms and potential for flash flooding will continue. The Storm Prediction Center has depicted a Slight Risk (level 2/5) to address concerns for some damaging wind potential and a couple of tornadoes. With locally a few inches of rain possible, the Weather Prediction Center as depicted a Slight Risk of excessive rainfall (level 2/4). Farther east across portions of east-central Florida including the Space Coast, locally very heavy and slow-moving showers and thunderstorms will be a concern this evening and overnight with locally several inches of rain possible near a frontal zone as very moist easterly Atlantic flow impacts the region. A Slight Risk (level 2/4) of excessive rainfall has been depicted here as well. Locally heavy rains with this broader storm system will also impact areas of the southern Appalachians and interior of the Southeast on Monday. Low pressure will begin to pull away from the Southeast U.S. on Tuesday, but lingering clouds and light rain will help keep temperatures rather cool for this time of the year, with high temperatures expected to be well below normal across much of the Southeast for the early part of the week. By midweek, the aforementioned unsettled weather and associated cold front ejecting out of the West and crossing the Plains will begin to dig into the Middle and Lower Mississippi Valley region. A more widespread area of heavy showers and thunderstorms will begin to overspread areas of the Midwest on down to the northwest Gulf Coast region beginning by Tuesday evening and into Wednesday. This will then reload widespread unsettled weather and cool temperatures across much of the Ohio and Tennessee Valley region and into the Southeast U.S. on Wednesday. Orrison Graphics available at https://www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php