Live snowpack across the country.

# Arctic Alaska Poised for Significant Snowfall as Lower 48 Sees Modest Activity

Snow enthusiasts looking for fresh powder will want to turn their attention northward to Alaska's Brooks Range, where a potent weather system is forecast to deliver substantial accumulations over the next 48 hours. While the Lower 48 has seen minimal activity in the past 24 hours—with just 2 inches reported at both Sawmill Ridge in Washington's Cascades and Vallecito in Colorado's San Juan Mountains—Alaska's remote northern reaches are preparing for what could be the most significant snowfall event in the nation this week.

The most impressive forecast totals are concentrated along Alaska's North Slope, where Imnaviat Creek is expected to receive 6 inches of new snow accompanied by rain-snow mix and areas of fog. Just 40 miles south, Atigun Pass—the highest mountain pass in Alaska at 4,739 feet elevation along the Dalton Highway—is tracking for 4 inches with challenging conditions including freezing fog and scattered precipitation that will make travel treacherous for truckers servicing the Prudhoe Bay oil fields. Even Prudhoe Bay itself, situated on the Arctic Ocean coast, is forecast for 2 inches despite its low elevation and typical rain-dominant weather patterns, indicating the cold air mass driving this system is particularly robust. Current base depths remain thin across these locations, ranging from just 1-2 inches, making this incoming system crucial for establishing early-season snowpack in Alaska's interior.

Meanwhile, the recent 2-inch deposits in Washington and Colorado appear to be isolated events rather than harbingers of larger storms. Sawmill Ridge in the Central Cascades sits at a respectable 170-inch base, though the forecast calls for hazy conditions followed by potential thunderstorms—hardly ideal for powder preservation. Vallecito, nestled in Colorado's southwestern mountains near Wolf Creek and Purgatory ski resorts, received its modest 2 inches atop a meager 3-inch base, with continued shower and thunderstorm activity forecast. For those seeking the heaviest, most consistent snowfall over the coming days, the Brooks Range's combination of forecast totals and blustery Arctic conditions makes it the clear winner, even if accessibility remains a challenge for all but the most adventurous snow researchers.