When that blows, you can kiss anything east of that goodbye for a few months. ..."
The Island Park Caldera supereruption (2.1 million years ago), which produced the Huckleberry Ridge Tuff, was the largest, and produced 2,500 times as much ash as the
1980 Mount St. Helens eruption...." I left PI before Pinatubo went up but I saw pics of my old stomping grounds that had ash drifts 8 feet high, looked like gray snow.
