heard and observed a large wet avalanche across the canyon from us on north-northwest facing terrain at about 6500 to 7000 feet in rock canyon. Ran for 300 to 400 vertical feet as best as we could tell and continued to pour over the cliff for a couple of minutes. The sun had been shining onto the area where the avalanche began for about half an hour or less so possibly sun triggered?

Forecaster comments - Got a call from a club/group wanting to head up Battle or Grove Creek canyons above Orem this morning....Not a hard call to recommend flatter terrain in American Fork.