NEW : Pavlof issues an advisory for areas around the volcanoes . An observatory reports ash plumes up to 100 miles above sea level over the Lava Volcano . That and another Philippines volcano remain on second highest alert status . `` We think of the Aleutian Islands as being remote and desolate '' An expert notes volcanic eruptions over Alaska can seriously affect air travel .
NEW : Pavlof issues an advisory for areas around the volcanoes . An observatory reports ash plumes up to 100 miles above sea level over the Lava Volcano . That and another Philippines volcano remain on second highest alert status . An expert notes volcanic eruptions over Alaska can seriously affect air travel .