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Observations

May 12, 2019, 3:33 p.m. PST

Region: East Slopes North - Canadian Border to Lake Chelan
Observation by Huggin , Munnin , SKIER-X , and Peter Larsen

Did you see any avalanches? Yes
Did you trigger any avalanches? No
Was anyone caught in an avalanche? No

Area Description: Blue Pk. N.C.Hwy. 20.

Route Description: N.aspect 100' below cornice .

Weather: Sunny ,60deg. no wind.

Snowpack: 2-4" soft corn over supportable snowpack.

Avalanches: 1/2 way from cornice down to Spire Gulch col. 30' wide start to 75' wide 100' below ,running 100' and settling @ swail , tarn above Spire Gulch . This avy. ran TO THE GROUND ! A natural release . 1st. one observed to the ground in this area. Many other natural releases from sun exposed and hanging snow on steep rock faces etc.

May 11, 2019, 11 a.m. PST

Region: West Slopes North - Canadian Border to Skagit River
Observation by Tom Perkow

Did you see any avalanches? Yes
Did you trigger any avalanches? No
Was anyone caught in an avalanche? No

Area Description: Mt. Baker - Lincoln Peak (Black Buttes) Mt. Baker - Boulder Glacier

Route Description: Easton Glacier

Weather: Sunny and warm

Snowpack: Variable

Avalanches: Almost continuous slides coming off of Lincoln Peak (Black Buttes) from about 10:30am to 11:30am on steep east-facing slope in full sun. Huge slide had come off of the crater rim and down the entire length of the Boulder Glacier and beyond fairly recently. See photo - zoom in. This was a debris avalanche.

May 10, 2019, 5 p.m. PST

Region: West Slopes North - Canadian Border to Skagit River
Observation by Robert Hahn

Did you see any avalanches? Yes
Did you trigger any avalanches? Yes
Was anyone caught in an avalanche? No

Area Description: Hidden Lakes Peaks area.

Route Description: We departed the trailhead at 04:45, hit snow at 4200 ft, and skied NE off the Hidden Lakes Peak Ridgeline by 08:30. We returned to the ridgline and skied NW by 11 AM.

Weather: Sunny and clear. Warm air mixing with cool surface outflow before sunrise. Becoming very warm after sunrise. Very light winds.

Snowpack: We found no refreeze below 5500 ft (pole penetration up to 1 ft at 5:30 AM), very minimal refreeze 5500-6000 ft, and weakly supportable refreeze above which broke down rapidly with direct sunlight and very warm daytime temperatures.

Avalanches: We observed 3 or 4 small to large wet slab avalanches and some small loose wet activity that released naturally within the last week on NE, E and SE aspects in the 5800-6400 ft elevation range (photo to illustrate activity on an E aspect). We were also able to trigger several small loose wet avalanches within the surface snow on N and E aspects and would have expected deeper entrainment later in the day.