GUIDE: JB
DATE: 201500304
LOCATION: CB Zone
ELEV: 9,400-10,600
ASPECT: S-SW
WEATHER: SCT to BKN, winds moderate gusting to strong BTL & NTL fom NW
Strong winds kicked up ~1:30 & blew in AM skin track in the open fields. little drifting in forest.
AVALANCHE / SNOWPACK OBS:
Good views of in-numerable slides on E -NE, around long lake, climax chutes, etc
2 collapses in open meadow (S slope @ 27* & 9,500ft) where the melt freeze crust from mid storm warm up ~20cm down is 1F (4cm thick) over Fist layer. HS 45cm
1 collapse SW slope @15* & 10,600ft) Similar structure but crust is thinner ) & only 4F. HS 70cm
Tests @ 10,400 SW 10* slope angle 30* HS 55cm Structure: 50cm storm snow sitting on 5cm mfrc (moist poly crystals)
CTM (11) SC 25cm down on 4F mfcr
ECTN (11) ” “
ECTN (11) ” “
Ski pen 15-25cm