Recreational Observation

Clara Lake Basin Just a quick note, full report to follow.  Mike and I took a tour into Clara Lake Basin just to get out and about.  After watching the results of the Avy controls inside Mission we were not really expecting that much. As we made our way up through the basin we were experiencing settling all the way, upping our concern, but still a little casual.  We discussed lines we might ski, most of what we talked about was avoiding the thin snow.  We kept to a low angle route, still seeing the settling.  when we stopped for lunch we dug a pit and found the weak layer, A deposit of large crystals on the rain crust, with the new snow topping that.  After lunch we decided to travel a little further up slope, and start our ski down.  At the top of our climb we were feeling very uncomfortable with any steep skiing.  We had thought we would ski a steeper south facing line on the way down, but because of our uneasiness with the snow we decided to keep to a low angle line.  At the top of the steeper line, I suggested we "just go have a look" so we started over but the access was not all that great so we bagged that idea and resumed our planned line.  As we came around the corner and looked at the steeper line it had all slid.  We were at least 10 meters from the slope at our nearest.  It was a south facing slope 140 degree true 6500 feet and at the top 35 degrees (un measured) failed on the faceted layer, cross loaded from the north wind we had the two days before.  It took the whole slope, probably 30 or 40 meters wide, and ran to the bottom of the slope 200/250 vert. Crown 76 cm/100cm.

Dec. 31, 2014, 1 p.m. PST

Weather: Clear

Area Description: Mission Peak

Observation by Jamie Tackman

Latitude: 47.290097

Longitude: -120.423683

Did you see any avalanches? Yes

Did you trigger any avalanches? Yes

Was anyone caught in an Avalanche? No