404 FXUS01 KWBC 261945 PMDSPD Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 243 PM EST Fri Dec 26 2025 Valid 00Z Sat Dec 27 2025 - 00Z Mon Dec 29 2025 ...Snow is likely for the Inter-Mountain West this weekend as the West Coast storm system moves across the region... ...Record warmth holiday heat holds across the South and Tennessee Valley... ...Next cold shot of Arctic air will descend across the northern U.S. beginning Sunday... An impactful winter storm is ongoing for the Northeast this afternoon and will continue overnight. Cold air damming is providing the right ingredients for observed freezing rain across the northern Mid-Atlantic, while areas from northern Pennsylvania to southern Connecticut will see heavy snowfall. Difficult travel conditions are ongoing for the area and those traveling from the holiday shoud exercise caution if you have to be on the road. After several days of deluge from heavy rainfall, California can expect to dry out this weekend as the last of a series of energetic low pressure systems is forecast to move pass the region. However,lingering showers and thunderstorms will continue to bring a lingering isolated storm and/or flash flooding risk through this evening. As the surface cold front moves into the Mountain West, chances for mountain snow will increase tonight into Saturday for Idaho, Wyoming, Montana, and Utah. Then, Colorado will likely see snow Sunday, including the Denver metro, as a strengthening cold front sweeps through the region. Winter Weather Advisories and a few Winter Storm Warnings are active for the mountain ranges where inches of snow and gusty winds will be possible. Meanwhile, anomalous warmth will be the rule over the mid-section of the country and across the South. High temperatures in the middle 70s to the low 80s are predicted from Texas to the Tennessee Valley for the weekend. Many cities could break or near record warm high temperatures each day, with some records dating as far back as the 1880s. Low temperatures will also be warm in the upper 50s to low 60s. This December soupy airmass will bring chances for fog each day along the Gulf Coast, some which may be locally dense and bring low visibility. A potential winter storm is possible for the Great Lakes region late Sunday into Monday. Strong wind gusts associated with a deepening area of low pressure and heavy snowfall may lead to blowing snow and whiteout conditions for the area. Additionally, snowfall amounts could locally exceed a foot across the area. An icy, wintry mix is forecast for the interior Northeast for Sunday and Monday. The other big storyline with this system will be the Arctic air funneling in behind the cold front. Dangerously cold wind chills on Sunday and Monday may be as cold as -20 F in northern Minnesota and North Dakota. See the WPC key message for more information on the developing storm. Wilder Graphics available at https://www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php $$