You’ve gotta see these photos from the Johnson Ridge Obervatory that are posted on the NASA Astronomy Picture of the Day. Evidently a new dome is forming pushing up almost a meter each day and is now visible above the lip of the crater.
APOD: A new rock slab is growing at more than one meter a day on the Mt. St. Helens volcano in Washington, USA. The rock slab, growing since last November, now extends about 100 meters out from one of the volcano’s craters.
The little boy geologist in me makes me want to run up to the volcano and look. There’s also a timelapse animation of the growth.