Snoqualmie Pass

Minimal new snow and a strong upper snowpack should help limit the avalanche hazard on Tuesday. You may still encounter rollerballs and very small loose wet avalanches on steep rocky slopes receiving direct sunshine. Pay attention near these locations so one of these small slides doesn’t catch you off guard.

The Pass area received 2-4” of snow over the weekend along with moderate to strong SW winds. Mostly cloudy skies on Monday likely gave this new snow time to settle and gain strength. This should help limit any avalanche hazard on Tuesday. After a chilly start to the morning, warming temperatures and a strong March sun will go to work on the snow. As the surface warms, you may see piles of rollerballs and even a few very small loose wet slides. These avalanches should not pose much danger unless they catch you off guard in high consequence terrain. If you choose to travel in rocky areas or above cliffs, keep the changing snow conditions on your mind. 

At upper elevations, the wind likely formed pockets of drifted snow. You are most likely to find and trigger one of these thin slabs at the base of cliffs or in confined chutes. Watch for small drifts and changes in the texture of the snow surface to help you anticipate which aspects could harbor wind slabs. Use caution if you decide to continue into these potentially wind-loaded features.

Below the most recent snow, the upper snowpack remains dry, layered, and “winter-like.” You can still easily identify many of the recent storms, crusts, and interfaces. Despite the spring-like weather, the snowpack has not made its transition. As temperatures warm over the next few days cornices may fail, snow could shed from rock faces, and glide avalanches may occur. Don’t let the sunshine and a springtime mindset distract you from these potential hazards. Continue to make observations and implement travel techniques that help reduce your risk. 

During the ongoing Covid-19 pandemic, continue to follow the latest guidance from local, state, and federal health officials. Avoid unnecessary risks that could impact first responders and stress medical resources.  Wear a mask when appropriate, practice social distancing, and consider recreating closer to home.