Close
SIMPLE OBSERVATION FORM
 Date: 02.11.19
 Location:  Patterson Peak Zone/Region:  Wood River Valley
 Activity:  
OBVIOUS SIGNS OF INSTABILITY
 Marked with checkmark if observed:
      Collapsing (widespread)
MESSAGE
 Comments: Patterson Peak NE:
HS 65-80, HST 40?
Ski Pen 50, Boot Pen Ground,
4F over F over 1F over F

Hollow at basal layer, dirty shears in HST, Wind slab present at ridge top (HS) and just below (SS). Large traveling collapses.