Besides the April 1980 one I’m sure there were other wind storms worse that that September 2012 one. Yes, Tokdog, the April 1, 1980 wind storm was by far the worst that Anchorage has ever seen.  The hillside was shredded and most every overhead power line there torn to bits.  I worked that one and others to get the power back on.  
No mention of that 1980 wind storm or the Mount Spurr eruption in the summer of 1953.  In Anchorage the powdery falling ash was so thick that you couldn’t see anything ~ 5, 6, 7 feet in front of you.  Pitch black in the middle of the day.