Saturday, February 28, 1998
Subbing for Kevin Chamberlain. Andee, Tok, and I
dropped a car at Corner Mountain and drove up to Greenrock. On the
way I observed a sheriff's car and ambulance headed up the road.
I checked with a USFS Ranger at the trailhead. A snowmobiler had
fallen off his machine and been run over by the guy behind him. I
offered my assistance but was told they had enough help with that rescue.
So, we headed down the Barber Lake road, then cut off and skied to to the
knoll in section 19 (see 2/21/98
and 2/8/98 reports).
Due to the short time we had available, I did not do the
complete snowpit data collection and recording routine, but rather dug
a hasty pit and took a quick look. The location was near the west
edge of the glade, about halfway down, on a SSE facing roll. Slope
angle was in the 20-25 deg range. The slope was actively wind loading
at the time. There was about a meter of old snow. The TG at the base
seemed to be firming up. At the top was about 10 cm of new snow (wind
slab) resting on a thin suncrust. There was a moderate to weak shear
at the base of the crust under the new snow. The older snow didn't
seem to shear. I would beware of any wind loaded areas right now.
We then skied down the edge of the glade and got a few
nice turns on fairly low angle slopes. Dropped down to Barber Lake
Road. Then cut off onto the Barber Lake trail and skied to Corner
Mountain. There was about 6-8 inches of new snow in the woods and
conditions were excellent.
I stopped in at the visitors center at the end of
the day. There were 4 snowboarders there and they had some questions
about avalanche training. I told them what I know about available
options for classes. I also gave them the "10 minute" version of
avalanche avoidance and self rescue. They had been boarding on the
open slope directily across the road and above the visitor's center (the
"Indicator" ????). They decribed breaking through the surface layers
into softer snow (depth hoar??). That slope appears to get some wind
loading, and looks to be fairly steep, so I cautioned them that it would
be best to do a thorough evaluation before riding it again.