Instabilities around Frazier Basin

Toured into Frazier Basin today and noted a few instabilities. First, on our approach, we experienced a loud "whumph" around 7000' on an East facing slope. Second, we saw a large natural avalanche above Ainger lake (E-SE facing) that ran from near the top of the ridge itself to propelling debris up, over, and past the lake. The crown ranged from 2-5ft high spanning 400-500ft across the face. Lastly, the wind was whipping and transporting lots of snow. As we gained a North-East facing ridge around 8500' a couple of pole/hand pits reviled a 4" pencil hard wind crust. Spring is in the air but it is still very much winter out here.