Climbing yesterday evening at the Gate and heard a roar and looked across the canyon to see a decent amount of snow pouring over the top cliff in the Black Pearl, and continuing down the chute. Snow waterfall over the top cliff lasted more than a minute. Appeared that the crown could have been right above the cliff but not confirmed. Relevant to problem existing on north facing terrain with the intense daytime warming. Sorry no camera, wish I had a video, it was an impressive event.

Forecaster note: With the elevation and aspect, suspect it was a wet loose slide, entraining snow, occurring as the cold dry snow on northerly facing slopes was heating for the first time.