The day was partly clouldy and very light precip (graupel) with intervals of strong sun and no precip. The tempertures were 39F at 10:30AM and warming.
201504251150-WS-AS-U-R2D1-I. On April 25, 2015, at 1150AM, skier unintentionally triggered a wet slab avalanche in the Tumalo Bowl between the rocks. Slope aspect about 65 deg, slope angle 40. Slide started about 30 ft below ridge line was about 60 ft wide and 400 ft long. The skier was not injuried or buried but was knocked down and slid about 100 feet. This was group's second lap in the bowl. First lap was about 11:10 AM after digging, logging, and testing a snow pit and intentionally kicking cornice line. Snow pit showed no signs of instability. See pit profile observation for more detail. The first lap was caused some small pin wheels but showed no other signs of instability. slight change in slope angle and time of day made all the difference.