Northwest Avalanche Center

Observation: Public

All Observations

Observation Details

Name:
Richard Forbes
Observation Date:
March 26, 2021
Submitted:
March 26, 2021
Zone or Region:
Snoqualmie Pass
Activity:
XC Skiing/Snowshoeing
Location:
Humpback Mountain - NW Ridge

Signs of Unstable Snow

None reported

Observations

Snowshoed up the NW ridge of Humpback Mountain today, found pretty minimal snow below 3k'. However, as we climbed higher, the snow became deeper and sloppier. Between 3 and 4k', the snow had not solidly refrozen, and was pretty rough for traveling. As we climbed above 4k', we found between 6' and 10' of softer powder lying on a wet and solid bed layer. The trees were heavily loaded w several inches on branches and a lot of rime.

We saw little to no loose wet evidence on the climb up, as there was solid cloudcover overhead for most of the climb. As we summited in mid-afternoon, the sun came out strongly for roughly 30 minutes, and the trees immediately began shedding. W and N slopes became quickly littered with pinwheels, including some that grew over 3 ft tall.

We got off the slopes before we saw any loose wet slides, and the sun went behind the clouds soon after.

Media

Looking downslope at some pinwheel debris
More pinwheel debris looking upslope
WordPress Lightbox