Field Observations:
A large (size 2.5) avalanche triggered by a snowboarder was reported for 1800m in Oshidashi on the north side of Happo. The crown wall was 80-150cm deep and the sliding surface was the Jan 28 melt freeze crust. This comes after continued snowfall, but relatively light winds on Happo.
Snow stability at the moment is poor and with additional load from this storm it will trend towards very poor. We had 48cm of snow overnight and it is a raging storm this morning. Staying out of the backcountry.
Date:
20100206Cloud Cover:
ObscuredPrecip type and rate:
S324hr min temp:
-8C24hr max temp:
-2CPresent temp:
-8C24hr new snow (HN24):
54cmNew snow from current storm (HST):
80cmSnow height (HS):
216cmWeight of new snow (100mm tube dia):
230gmWater equiv of new snow:
29mmDensity new snow:
61kg/m3Surface crystal size:
1mmSurface crystal form:
New SnowWind speed:
ModerateWind direction:
NMore info: