There's the "bulge" on the north side of Mt. St. Helens, the day before it blew up. And on that day (a Saturday) they had let the homeowners in that area, finally get back to their homes (in the "red zone") to get their belongings and get out.
I remember that many of them complained that they should be allowed to stay overnight to collect their belongings in their houses through the weekend. But, the State of Washington refused to let them and ordered them all out by sundown, that Saturday.
Well, it was just a few hours later, Sunday morning, that all hell broke loose and those people never got back to their homes again (at least not many of them...).
The Geologist who took that photo, Harry Glicken, was scheduled to be at that spot on the morning of the eruption but had an interview in California. His replacement was killed by the pyroclasitc cloud.
