Olympics

Warm temperatures, calm winds, and filtered sunshine may cause the snow surface to become wet and unstable on Wednesday. If you notice the snow shedding from rocks and trees, you could soon see natural loose wet or cornice avalanches on similar aspects. Pay attention to the terrain above you during this period of warmer weather.

Wednesday’s weather will drive the avalanche concerns you encounter. Expect a bit of a struggle between very warm temperatures and increasing clouds with filtered sunshine. Without a significant cooling breeze, we think the hot temperatures will cause the snow surface to become wet and unstable. As the snowpack begins to undergo its transition, you may notice the snow shedding from trees and rocks, or the surface becoming sticky and “punchy.” If you see these clues, start thinking about wet snow avalanches. When you notice new rollerballs or find small piles of fan-shaped debris anticipate natural avalanches on similar slopes. You’re likely to encounter wet snow on all but the very highest shaded aspects. While these slides should remain small, don’t let them catch you off guard and push you into a creek or over a cliff. 

The warm weather could also affect the large looming cornices that formed during the recent stormy weather. Predicting when these waves of snow may come crashing down is very difficult. So, choose travel routes that limit the amount of time you spend near or under these beasts. Recent storm snow problems from the weekend likely gained strength over the last few days. However, large triggers such as natural loose avalanches or cornices failures may still trigger slabs in wind-loaded or rocky terrain. 

Spring Forecast Schedule:  NWAC will issue a danger rating every day for the Olympics beginning Friday, April 2nd  - Sunday, April 18th. 

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.