Observation: Hatcher Pass

Location: Valley of Sin>Women's Run

Route & General Observations

It has been a busy week of sunshine, powder skiing, and 7+ human/remotely triggered avalanches. Skiers have tackled most low hanging fruit terrain in the pass and gotten a lot of feedback about our March Warming persistent weak layer. We toured up the Valley of Sin to do a crown profile of the Women’s Run avalanche that occurred on 4/7. We did not observe any red flags today> no whumping, cracking, or recent avalanches. Light ESE winds kept snow surfaces cool and faceted snow surfaces on northerly aspects.

Red Flags
Red flags are simple visual clues that are a sign of potential avalanche danger. Please record any sign of red flags below.
Observer Comments

No cracking, collapsing or recent avalanches were observed today.

Weather & Snow Characteristics
Please provide details to help us determine the weather and snowpack during the time this observation took place.

New snow:Last new snow was on 4/4-4/5 with 10" reported at IM @ 3550'.

Wind: Winds were calm in the valley and light with moderate gusts at ridgetop, ESE 11-16 mph gusting 21-26 for 4 hours @ 4500'

Temps: lows/highs
4500': 16*F/ 20*F
3550: 18*F/27*F
2700: 24*F/35*F

Snow surface

Snow surfaces remained cold and faceted on northerly terrain today above 3000'. South aspects at upper elevation barely warmed up and were sun softened and not moist in the afternoon. East and west aspects faceted out a bit overnight but still have deteriorating crusts. In general, light winds kept snow surfaces cool.


See snowpilot and sidewall pit photo of Women's Run avalanche.

Photos & Video
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