East Slopes South

A fresh round of snow and strong west winds impacting the East South zone will build shallow drifts that you can trigger at upper elevations. Identify and navigate around steep slopes under fresh cornices or where you see actively blowing snow forming drifts.

After after a significant period of snowpack settlement, a wave of precipitation brought around an inch or two of snow to mid and upper elevation terrain Thursday evening, but that did little to increase avalanche hazard. The new snow arrived at mild temperatures, helping it to bond with pre-existing crusts on most aspects. On cold, northerly slopes at the highest elevations, there remains a chance that the new snow could rest on small weak grains (facets). 

Several inches of additional snowfall accompanied by steady winds and potentially strong gusts have accumulated, especially closer to the Cascade crest. The new snow will deepen wind slabs and continue to build sensitive fresh cornices which creating heightened avalanche conditions on steep and poorly supported slopes at upper and middle elevations. Use your powers of observation to identify the signs of new and recent wind transport. Look for actively blowing snow, drifted snow, fresh cornices, and stiff or textured snow as a sign that you could trigger a wind slab avalanche. Steer around steep start zones and slopes over 35 degrees where you see these signs.

Non-avalanche hazards:

• Glide cracks have opened on steep, rocky slopes particularly at upper elevations. While cooler weather reduces the likelihood of a glide avalanche, continue to give these impressive features a wide margin for safety on the slopes above you.
• Cornices near the Cascade Crest are large and many have yet to fail, but may lean precariously as the recent mild temperatures take its toll. Give them a wide berth as you travel along ridgelines and on the slopes below.

We continue to track the mid-January crust-facet combo throughout the Cascades, but it appears dormant and we don't believe it poses a threat at this time.

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.