Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 300 AM EST Mon Dec 30 2024 Valid 12Z Mon Dec 30 2024 - 12Z Wed Jan 01 2025 ...Snow showers likely across parts of the Northern Rockies and Northern/Central Plains today... ...Much above average temperatures continue across the Central and Eastern U.S today; cooling trend spreads from West to East this week.... ...Critical Fire Weather expected for portions of the Southern High Plains today... A surface low pressure system ejecting out of the Rockies will likely produce a swath of snow from northern Idaho down through western Iowa today. Moderate impacts mainly due to blowing snow are expected across much of Wyoming, the Colorado Rockies, South Dakota and northwestern Nebraska. Snow over the Northern Rockies could accumulate between 6-12 inches with isolated higher amounts possible. Snow and wind should subside across the Northwest tonight as the low pressure system tracks into the Ohio Valley. Downstream, another, deeper low pressure system will spread showers and scattered thunderstorms into the Northeast today with some light snow showers possible downwind of the Lower Great Lakes. The arrival of the Plains system will promote even more snow showers for the broader Great Lakes region on Tuesday. Much above average temperatures are expected to continue across the Central and Eastern U.S. today beneath an upper ridge. Kebede Graphics available at https://www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php