Report of a skier triggered avalanche in the Jewel Basin today. 25 Dec.
Early reports indicate the skier was caught but not injured. Soft slab avalanche that initiated on a wind slab/on some buried surface hoar approx. 25 cm down. Slide ran approx. 200 feet. More information to follow. Be careful out there.
Update: From phone conversation with reporting party.
Two experienced persons ( 1 skier and 1 snowboarder) were touring on their way up to the radio tower near Mount Aeneas. They decided to ski a NE aspect slope that drops into Crown Bowl. They had noticed no signs of instability during the ascent. They dug a pit and performed a compression test in the start zone. The results from the test did not indicate instability in the snow pack. The skier dropped in first and made 3 turns when the he triggered the slide. The skier was carried approximately 100-150 feet where he ended up about waste deep in the debris, uninjured.
The avalanche was a SS-ASu-D2-O. Soft Slab- Skier triggered, unintentional- (D2) size could bury, injure or kill a person.
Slide crown was 4 inches (10 cm) on one flank and 10 to 12 inches (25-30 cm) on the other flank and it went approximately 300 feet.
Report is that there was a wind slab on top of some faceted grains.
Remember even very experienced backcountry users that are taking all the right precautions and making the best decisions they can with the information they can gather, can be surprised.
Use caution when entering slopes from ridgetops avoiding convex rolls and wind slabs.