Our party of three had skied Silver Fork and then skinned into West Bowl coming up to the top via the northern ridge. There were 3 tracks into West Bowl, 2 of which were from the summit and one from lower down on the shoulder to the east. We hadn't seen any instabilities and knew the winds had been blowing per the avie report and what we saw as the sun came up while on top of Silver Fork/Honeycomb Ridge. While skinning up into West Bowl I was breaking trail and pulled over to let another lead out, noticing that there was a graupel layer about 4-5" down. When rejoining the skin track there were small pieces of slab that slid on this graupel layer onto the skin track below me which I should have kept in mind later in our tour. Mistake #1. As we neared the top of West Bowl, one of our party suggested holding up as the other two went to the top and he would take some photos as we descended into west bowl with Alta in the background. As we skinned up to the top I thought it best to descent skiers left of the existing tracks, but then focusing more on the photos decided to ski to the skiers right of the summit along the ridgeline and then drop in allowing for a better photo. Mistake #2. I pushed off and made a couple of turns along the ridge gaining some speed and made my third turn to the right along the ridge/cornice edge which was more rounded in this spot. Exiting this turn and making the next turn to my left into the main part of the bowl I looked out ahead and saw what in a split second looked like a skin track but then clearly looked like a large ripple. I then realized the snow around me was rippling up and looking over my shoulder saw I was in the middle of a slide that had broken at the top of ridge where my third turn was. Fortunately I was carrying enough speed to maintain a trajectory across the slide and exit to the skiers left as the slab and other snow was carried another 200' down slope clipping the edge of the pines in West Bowl. Luckily for me the slide was only 60' wide and at most 12" deep which likely wouldn't have completely buried me given it didn't entrain more snow but I easily could have been knocked down and strained through the pines. Lessons learned: Should have paid attention to the conditions I noticed earlier which in the skin track down low in the bowl seemed interesting but benign and definitely should have stayed focused on a safe descent/route vs. a scenic photo opportunity.