however , peter cervelli of the northwest volcano observatory said that " anchorage might dodge the bullet " and come through the eruption unscathed . dave stricklan of the national weather council predicted a " bright dusting " of fine ash that would impact air traveling but not seriously affect people on the ground . mudflows generally affect the drift and helix creeks . mont fortifications last attacked in november 1989 , causing mudflows can took an oil slick at danger while ash from the eruption stalled the engined of a passing airliner . us $ 160 million , of damage was estimated to have been caused .
The Volcano Observatory in Alaska is the employer of Peter Cervelli.