Avalanche: Mt Watson

I headed up to Mt. Watson today to do some skiing. The first mile of the road had about 4-6" of new snow otherwise it was pavement. On the way back it was totally melted out. I expect the plows will move the end of the road up a mile tomorrow. Once up in the Mt. Watson area it was I was greeted with 8-10 of new snow in the fields below the towing peaks. Since the south wind that accompanied the storm had loaded the north slopes, I decided to skin up to the north east facing couloir on Notch Mountain in hopes of ski cutting a slide. I ski cut the loaded rollover at the top with no results. I headed back down the south side for some safe south facing low angle skiing. After a few laps the skies began to clear enough to get a better view of the wind loading on Mt. Watson. To my delight, there was minimal wind loading. However, I noticed this shallow but wide soft slab avalanche that occurred yesterday. Judging by the length that it ran, it was a slow mover and given the shallow depth manageable if in a narrower line such as the one I skied.