Hydrophobia

We had a full size avalanche run over us yesterday on Hydrophobia. Winds were W, high to extreme while approaching, and were not being felt at the base. Some spindrift was occasionally coming down while gearing up, being dissipated and fully manageable. 1 hour later and 2 pitches up winds had shifted N, in full downflow over the climb. Spindrift was heavy, high volume and relentless. We bailed, and heard 2 avalanches in the bowl around us, Nophobia area. While in the cave down left, fully sheltered and getting ready to rap, a full size avalanche went over us. Over the general roar, darkness and air blast, we heard several large impacts on the slope below us. While rapping off after the show, l observed 7-8 microwave size craters on the slope. Conditions worsened after that, we were unable to see the climb at all on the walkout, fully obscured by spindrift. I suspect this was a wind slab avalanche that went to the ground above the climb, big enough to dislodge and entrain large rocks.