None observed
All roller ball activity was from the day before or earlier in the week
Observation: Turnagain
Location: Tincan
Standard uptrack to 2500′ checking out surface conditions and observing temperature, cloud cover and any possible natural activity
Observer Comments
Weather
Partly sunny with valley fog trending to overcast late afternoon
Temperatures in the 30Fs and 40Fs at lower elevations, upper 20Fs to low 30Fs at upper elevations
Light wind
No precip
Snow surface
Breakable melt freeze crust at road level to 2000' on all aspects becoming soft on southerly slopes
Wind crust above 2000' on non solar aspects and snow from yesterday was becoming moist over a previous sun crust on southerly aspects
On descent the crust below 1500' was sticky on west aspects and soft/moist at road level.
Snowpack
Dug 1 pit @ 2500' on SW aspect and probed on SE and SW aspects near pit location HS varied from 160 to 300 cm. SE aspect surface snow was getting wet over a few cm of moist snow over a melt freeze crust from earlier in the week. SW surface snow was moist.
Found the January 21st buried surface hoar 100 below the surface. No results in CT tests. Deep tap CT 15 SC, PST 30/100 (End) 100 cm down on 1.21.18.
Pit @ 2500'
Crust @ 1000'
1500' SW aspect wet soft surface snow
Surface at 2000' on a southerly slope snow above suncrust getting moist
SE aspect at 2500' melt freeze below the surface with soft snow on top becoming wet in the sun
Tincan surface inventory: wind crust, old roller balls, moist turns on solar aspects
Sunburst with old crown observed earlier in the week.