Dimensions are estimates as viewed from below in Cache Valley.... Solar warming likely had something to do with this scary midday natural release...... From a distance it appears to have stepped down into deeply buried January weak layers......
Still unsure about the timing of this... First seen and reported on 3-13-2011.
From John Hubbard 3-13-2011:
Off the summit of Big Baldy, Providence Canyon, UT Off the ridge leading SW from 8800 ft noticed that off the SW shoulder -looking out toward the NW - avalanched pretty well yesterday (3-12-2011) = no photo to offer but i can see it well from the house- ca. 300 S 300 N Providence. fell several hundred feet i think. i can't estimate the break but it is visible from miles away. been watching this hill for 22 yr and i cannot recall seeing this area avalanche- looks like the cornice (that usually forms) fell (because of the higher than usual snowpack)- set it off
From Mark Fels 3-14-2011: