Observation: Turnagain

Location: Sunburst and photos of Seattle Ridge and Tinca

Route & General Observations

We did a quick tour to 2500′ on W and SW slopes of Sunburst between 4pm and 6pm to look at how wet and saturated the snowpack was in the late afternoon sun. The evening prior was the first clear night with temps dipping below freezing following several days of rainy weather. We also took more photos of the natural wet avalanche cycle that occurred Tues and Wed (4/10-4/11) on Seattle Ridge and Tincan. Also see the “Turnagain Pass Road Obs” from 4/12 for more photos and details of this cycle.

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

Lots of activity from a few days ago, but didn't see anything recent from today.

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

45F at the road
33F at 3800' (Sunburst Wx station)
5-10mph NW winds
No new precip

Snow surface

West and SW aspects:
800' - Boot pen = thigh high wet snow on flats,
1500' - Boot pen = waist deep wet snow on low angle SW aspect.
2000' - Boot pen = chin deep wet snow on low angle SW aspect.
2500' - Boot pen = ankle deep wet snow on low angle SW aspect.

Aspects with a slightly Northern aspect were forming a very light superficial crust to about 2000'. In the alpine North aspects had a more stout supportable crust to 2500' where we turned around. Could see re-frozen roller balls to about 3000' on North aspect of Magnum.

*On a steep (40+ degrees) South facing features skis sunk 12" deep at 2200' at 6pm.

Photos & Video
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