Ball Butte and Broken Top

Red Flags:
Recent avalanche activity

Updated:
Friday, Apr 20, 2018 3:06 PM
Observer(s):
Phil Bowker
Position:
Pro Ob
Location:
Broken Top Area (44.064945, -121.674871)
Ob Date/Time:
Fri, Apr 20, 2018 - 1:49 PM
Report Type:
Snow Conditions
Mode of Travel:
Snowmobile

Written Report:
Quite a rapid warm up this morning. At the base of Ball Butte at 10am, winds were calm, skies clear, no precipitation, no blowing snow, and air temperature was 8c (46f). Snow surface at the base of the Butte was a rapidly decomposing, breakable melt freeze crust. With the continued rise in temperature the snow surface on east facing aspects became quite wet, with ice and snow being shed from rocks creating pin wheels on the snow surface. I did see what looked like evidence of a small loose wet slide on the Southeast aspect of Broken Top.
While persistent west winds created reactive cohesive wind slabs on easterly aspects earlier in the week, I did not see evidence of this on my tour today, rather the release of wet unconsolidated snow. (see attached picture)
At the right time and temperature, skiing was good today.

Weather & Snowpack
Temperature: 4°C Sky: Clear skies
New Snow: 0 cm Snow Depth: 245 cm Elevation: 7844 ft Aspect/Slope: Southeast / 33°


Multimedia

Caption: Pin Wheels on East aspects