U.S. Snow Report Today

Nation Braces for Arctic Snowfall as Alaska Takes Center Stage

While the Lower 48 experiences modest snowfall activity with scattered 2-inch accumulations in Washington's Cascades and Colorado's San Juan Mountains, the real winter story is unfolding across Alaska's North Slope, where forecasters are calling for significant snowfall over the next 48 hours. Imnaviat Creek leads the charge with a projected 6 inches of accumulation amid rain-snow mix and dense fog conditions, while Atigun Pass—the highest point along the iconic Dalton Highway—expects 4 inches accompanied by treacherous freezing fog. Even Prudhoe Bay, sitting at just 1 inch of base depth, anticipates 2 inches of fresh snow as moisture streams in from the Arctic Ocean.

The contrast between regions couldn't be starker. Sawmill Ridge in Washington's Cascade Range reported 2 inches over the past 24 hours, bringing its seasonal base to a robust 170 inches—excellent news for backcountry enthusiasts eyeing the Stevens Pass and Snoqualmie Pass corridors. Meanwhile, Colorado's Vallecito monitoring station also logged 2 inches, though its meager 3-inch base reflects the Southwest's ongoing struggle with below-average snowpack.

Thunderstorm activity threatens both locations, with Washington facing hazy conditions transitioning to isolated t-storms, while Colorado's San Juan region braces for shower-to-thunderstorm sequences that could hamper snow quality and create unstable avalanche conditions.

Alaska's developing weather pattern deserves particular attention from snow researchers and extreme winter enthusiasts. Atigun Pass, situated at mile 244 of the Dalton Highway at 4,800 feet elevation, serves as a critical barometer for Arctic weather systems, and the forecasted 4-inch dump with freezing fog will create whiteout conditions for truckers servicing North Slope oil operations. Imnaviat Creek's 6-inch forecast represents the most substantial accumulation event nationwide, though its remote location in the Brooks Range means few will witness this Arctic spectacle firsthand.

The rain-snow mix and persistent fog suggest temperatures hovering near freezing—classic conditions for heavy, cement-like snow that builds impressive totals. While no major ski resorts dot this extreme northern landscape, these measurements provide invaluable data for climatologists tracking Arctic precipitation patterns and permafrost dynamics in our rapidly changing climate.