Snoqualmie Pass: I-90 Reopens Amid Elevated Avalanche Danger After Multiple Crashes

Winter’s unpredictable embrace has once again tightened its grip on the Pacific Northwest, transforming vital transportation arteries into treacherous paths. Early January 2026 brought a stark reminder of the challenges mountain passes present, as Snoqualmie Pass, a critical link across the Cascade Mountains, experienced a harrowing series of events. From multiple road closures on Interstate 90 due to perilous driving conditions to an elevated threat of avalanches, the region has been on high alert, urging both commuters and backcountry enthusiasts to exercise extreme caution.

I-90’s Perilous Dance with Winter

The saga began on Tuesday night, January 6, 2026, when eastbound Interstate 90 west of Snoqualmie Pass became a focal point of winter’s wrath. According to the Washington State Department of Transportation (WSDOT) and reports from KING 5, the highway was forced to close not once, but twice, within a short span, all thanks to a series of spinouts and collisions. The initial closure struck at milepost 48, grinding traffic to a halt as emergency crews responded to the chaotic scene. Though the road briefly reopened just before 6:30 p.m., the reprieve was short-lived. Barely an hour later, just after 7 p.m., another incident prompted a second closure at milepost 47, pushing the reopening past 7:30 p.m. This pattern of intermittent closures, as also reported by FOX28 Spokane and KHQ, underscored the volatile nature of the conditions.

The culprit behind this road mayhem was a treacherous mix of snow and slush coating the roadway. Such conditions dramatically reduce tire traction, turning even minor driving errors into potentially catastrophic events. For drivers, the sensation of losing control on a slushy road can be terrifying, as the vehicle hydroplanes on a layer of water and semi-melted snow, making steering and braking largely ineffective. This is precisely why WSDOT was quick to implement strict travel advisories: chains were required on all vehicles except those equipped with all-wheel drive, and oversize vehicles were outright prohibited from traversing the pass. These measures, while inconvenient, are critical for mitigating further accidents and ensuring the safety of those who must navigate the pass. The closures and subsequent reopenings, even with major delays, highlighted the tireless efforts of transportation officials to keep a vital corridor operational under the most challenging circumstances.

Avalanche Danger: A Silent, Looming Threat

As drivers grappled with the immediate dangers on the highway, another, more insidious threat loomed in the higher elevations: elevated avalanche danger. The Northwest Avalanche Center (NWAC) issued a stern warning for backcountry travelers venturing into the east slopes of the central Cascades. Forecaster Payton Schiff’s latest bulletin, released Tuesday evening, painted a clear picture of the risks: considerable avalanche danger was anticipated at upper and middle elevations, with moderate danger extending to lower elevations. This isn’t merely a suggestion; it’s a critical directive for anyone considering off-piste travel, emphasizing the need for conservative terrain choices and constant vigilance for signs of unstable snow.

Understanding the specific mechanics behind these warnings is crucial. Two primary concerns dominated the forecast for elevations above 5,000 feet: wind slabs and storm slabs. Wind slabs form when moderate to strong southwest winds pick up loose snow and deposit it in deeper, denser drifts, particularly on north and east-facing slopes. These compacted layers can be deceptively stable on the surface but hide a weaker, underlying layer, ready to fracture and release a massive slide with the slightest disturbance. Forecasters predicted that unstable wind slabs would develop early Wednesday and continue to form as winds shifted southerly throughout the day. These are most commonly found just below ridgelines, along gully walls, and in other areas where snow is cross-loaded by the wind, creating loaded slopes ripe for failure.

Storm slabs, on the other hand, are a direct consequence of ongoing snowfall. As new snow accumulates rapidly, especially near the Cascade Crest where higher totals were expected, it can create unstable layers. If this new, heavy snow falls on an older, slick crust – a common occurrence in lower-elevation areas – the potential for instability dramatically increases. The new snow struggles to bond with the icy surface below, making it prone to sliding. Peak storm slab instability was expected in the morning hours, though the danger of loose dry snow sluffs, smaller but still dangerous slides, remained a possibility throughout the day, even in seemingly sheltered terrain. This dual threat of wind-driven and storm-driven avalanches underscores the complex and dynamic nature of mountain snowpacks.

Navigating a Treacherous Landscape: Snowpack Dynamics and Hidden Hazards

The snowpack itself presented a mosaic of conditions, adding another layer of complexity to the avalanche forecast. Observations indicated significant variability across the region, with up to a foot or more of low-density snow falling in areas like Salmon La Sac, while other zones saw lighter accumulations. This uneven distribution, combined with continued snowfall and shifting winds, concentrated the greatest hazard in specific zones close to the Cascade Crest, including Salmon La Sac and Chikawums. The presence of a crust, formed earlier in the month, further complicated matters. While generally supportive above 5,000 feet, this crust became weaker and wetter at lower elevations, creating an unpredictable foundation for new snow.

Beyond the visible dangers of snow and ice, backcountry travelers were also warned about hidden hazards lurking beneath the fresh snow. Open creeks, downed logs, rocks, and trees, typically visible in milder conditions, can become deadly traps when concealed by a blanket of white. A misstep can lead to a fall into an icy stream, a twisted ankle on a hidden log, or a collision with a rock, turning an enjoyable outing into a life-threatening emergency. These unseen dangers are a constant reminder that the mountains, especially in winter, demand respect and meticulous preparation. The warnings from Northwest Avalanche Center are not mere advisories; they are critical intelligence for survival in an unforgiving environment.

The situation on Snoqualmie Pass, combining immediate road closures with elevated avalanche risks, paints a vivid picture of winter’s power. It serves as a crucial reminder for everyone contemplating travel through or recreation within mountain environments. Whether behind the wheel on I-90 or venturing into the backcountry, awareness of current conditions, adherence to advisories, and a healthy respect for nature’s forces are paramount. Checking WSDOT for road conditions and the NWAC for avalanche forecasts is not just good practice; it’s a necessity for personal safety and the well-being of rescue personnel.

The Unyielding Demands of Mountain Travel

In the face of such volatile conditions, the collective responsibility for safety falls on every individual. For those driving, the importance of proper vehicle preparation – including appropriate tires and chains – cannot be overstated. Adjusting speed to conditions, maintaining extra following distance, and avoiding sudden maneuvers are basic tenets of winter driving that become non-negotiable in environments like Snoqualmie Pass. For backcountry enthusiasts, the equation is even more complex, demanding extensive knowledge of snow science, terrain assessment, and rescue techniques, alongside the most up-to-date forecasts. Decisions made in the comfort of a warm home can have life-or-death consequences hours later on a remote slope.

The repeated closures and elevated warnings underscore a fundamental truth about mountain passes: they are dynamic environments subject to rapid and severe changes. What might be clear and passable one hour can become impassable and dangerous the next. This constant flux necessitates a flexible mindset and a willingness to alter plans, prioritize safety over schedules, and understand that delays are often a small price to pay for avoiding disaster. The efforts of WSDOT crews clearing roads and NWAC forecasters analyzing snowpacks are foundational, but ultimately, personal responsibility forms the final, critical layer of defense against winter’s perils. As the region navigates these challenging conditions, the stories from Snoqualmie Pass serve as a powerful cautionary tale, echoing the timeless wisdom that nature’s power demands humility and preparedness.

The events at Snoqualmie Pass in early January 2026 serve as a stark illustration of the dual challenges posed by winter in mountainous regions: the immediate, disruptive impact on vital transportation routes and the ever-present, silent threat of avalanches in the backcountry. This confluence of hazards demands not only robust infrastructure management and expert forecasting but also an unwavering commitment from individuals to prioritize safety through informed decision-making and meticulous preparation, reinforcing the enduring truism that respect for nature’s power is paramount for survival.