Stevens Pass

A weak storm will bring light rain below treeline and a dusting of snow to upper elevations. There's a slight chance of small, wet avalanches though any moving snow will be inconsequential. Watch for signs of instability like rollerballs and natural wet avalanches. 

On Friday, observers on Rock Mountain reported thawing "corn" conditions on southerly slopes with some recent wet loose avalanches above treeline. On northerly aspects, they found cold, dry snow with no recent drifting or signs of wind slab avalanche hazard.

On some slopes above treeline,  you'll be able to find older, and possibly some very shallow, fresh wind-drifted slabs. While triggering wind slab avalanches is unlikely, look for signs of instability like cracks shooting through the snow. The snowpack is still transitioning to spring, melt-freeze conditions. Watch for anomalous high-consequence hazards like falling cornices, glide avalanches, and snow shedding off of rocks. A recent, very large natural avalanche in the West South zone, is a good reminder. While the timing of these hazards is tough to predict, you can easily avoid them by not lingering on or under the features that produce them. 

Between April 6-11th, nearly 2.5" of water equivalent fell, with much of it as rain below 4,500ft. Sunday the 9th marked an avalanche cycle with the rain line as high as 6,000ft. Many avalanches were large, and there may have been some up to D3. Observers reported significant avalanches on Lumiere Ridge, Captain Point, Keyes Pk, and Cowboy Ridge. See the images below. Glide cracks opened on a number of slopes with smooth ground or rock slabs. 

This is the last avalanche forecast for the 22/23 season. NWAC will continue issuing mountain weather forecasts each afternoon at 2:30 pm through April. We’d like to thank each of you for reading and using these forecasts to make informed safe decisions and for contributing to your community by submitting observations. Please continue to help support your backcountry friends by letting others know what you find in the mountains. Have a wonderful spring and summer!