Wind Slab Avalanche on Alex Lowe peak

Attempting to ski the Hellmouth The snowpack appeared very stable on most aspects, however when dropping into the northwest face of Alex Lowe peak up and lookers left from the couloir the snowpack was extremely wind scoured. There was maybe 6 inches of  un compacted facets below two inches of wind slab. Slightly farther down slope the snow became deep enough for me to put in several jump turns on ski belay. After coming off belay I skied forward maybe 5 feet and broke off a wind slab around 20 feet wide and five feet below me. Shifting my weight right after that the snow below me also broke and slid away. After that I booted back to the ridge and we safely descended the south east face.