U.S. Snow Report Today

Arctic Alaska Braces for Significant Snowfall as Lower 48 Sees Modest Activity

Snow enthusiasts looking for the most substantial accumulations over the coming days should turn their attention northward to Alaska's remote North Slope region, where a potent weather system is poised to deliver impressive totals. While the Lower 48 has seen minimal activity—with just 2 inches reported at both Sawmill Ridge in Washington's Cascades and Vallecito in Colorado's San Juan Mountains over the past 24 hours—the Arctic is preparing for a legitimate snow event. Imnaviat Creek leads the forecast with an expected 6 inches, followed by Atigun Pass at 4 inches, and Prudhoe Bay rounding out the action with 2 inches, all accompanied by challenging conditions including freezing fog and mixed precipitation.

The convergence of moisture and Arctic air along Alaska's northern corridor is creating textbook conditions for substantial accumulation in an area that rarely sees significant snowfall events this time of season. Atigun Pass, situated at mile 244 of the Dalton Highway and serving as a critical transportation link to the North Slope oil fields, faces particularly treacherous conditions with rain/snow mix and areas of freezing fog transitioning to scattered precipitation. The pass, already sitting on a minimal 1-inch base, will see conditions deteriorate rapidly for truckers and travelers.

Meanwhile, Imnaviat Creek—located in the Brooks Range foothills—is positioned perfectly beneath the heaviest precipitation band, with its 2-inch base set to triple as temperatures hover near freezing and moisture streams in from the Chukchi Sea.

Back in the contiguous United States, the snowfall picture remains decidedly underwhelming for powder seekers. Sawmill Ridge in Washington's Snoqualmie Pass vicinity received 2 inches but sits on a robust 170-inch base, though hazy conditions and potential thunderstorms forecast ahead suggest unstable spring weather rather than sustained winter storms. Colorado's Vallecito, nestled near Wolf Creek Pass territory, matched that 2-inch total but operates from a meager 3-inch base with showers and thunderstorms dominating the forecast—a clear signal that the southern Rockies have transitioned into convective spring patterns.

For researchers and enthusiasts tracking significant winter weather, Alaska's North Slope clearly commands attention as the nation's snowfall epicenter.