U.S. Snow Report Today

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

Snow enthusiasts looking for the most promising conditions over the next 48 hours should turn their attention northward to Alaska's Brooks Range, where a potent weather system is poised to deliver the nation's most substantial snowfall. Imnaviat Creek leads the forecast with an impressive 6 inches expected, while Atigun Pass—the highest highway pass in Alaska at 4,739 feet—anticipates 4 inches amid challenging conditions including freezing fog and mixed precipitation. Meanwhile, recent observations show modest 2-inch accumulations at Sawmill Ridge in Washington's Cascades and Vallecito in Colorado's San Juan Mountains, though both locations face transitioning weather patterns with thunderstorms entering the picture.

The Brooks Range corridor represents the epicenter of winter's persistence, with Imnavait Creek's 6-inch forecast standing as the nation's most significant event through mid-week. This remote location at 68.6°N latitude is experiencing classic late-season Arctic conditions, where rain-snow mixes battle with areas of fog as temperatures hover near freezing. Just 35 miles south, Atigun Pass—critical for North Slope oil field access—faces hazardous traveling conditions with 4 inches expected alongside periods of freezing fog that will challenge visibility.

Even Prudhoe Bay on the Arctic Ocean coast anticipates 2 inches before conditions warm enough to transition toward rain, marking the complex meteorological dance occurring across Alaska's North Slope.

The Lower 48 presents a stark contrast, with recent 2-inch totals at Washington's Sawmill Ridge (sitting at a respectable 170-inch base) and Colorado's Vallecito (minimal 3-inch base) representing isolated pockets rather than widespread activity. Sawmill Ridge in the Central Cascades east of Seattle shows the remnants of a productive winter, though current hazy conditions giving way to thunderstorms suggest the season is winding down. Colorado's Vallecito in the San Juans faces similar transitional weather with shower and thunderstorm activity dominating the forecast.

For powder seekers, the message is clear: Alaska's remote northern reaches are delivering the goods this cycle, with the Brooks Range's challenging terrain and limited access offering the nation's most vigorous snowfall for those adventurous enough to chase it.