{"blocks":[{"key":"d7nhc","text":"Forecast 10-25 cm of new snow Saturday night into Sunday will fall on a small layer of Surface Hoar (3-6 mm) that formed overnight on Friday.   This brings a total of 25-55 cm snow that overlies another known weak layer of large surface hoar (up to 10 mm) and crust, which is showing signs of instability in easy sudden results in test pits, whumphing and isolated avalanche activity. This surface hoar was most intact at and below treeline and sits on a variety of surfaces that include wind affected surfaces in exposed terrain, a thin sun crust on steep solar aspects, as well as more variably wind affected and faceted snow in more sheltered terrain.  Below 1700-1800 m, 20-50 cm of snow is settling above a decomposing melt freeze crust. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":342,"length":9,"key":0}],"data":{}},{"key":"3qmr7","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"dmgnm","text":"Observers in the southern Selkirks and Valhallas continue to find a preserved layer of surface hoar down 35-70 cm in sheltered, open slopes at and below treeline, and continued isolated avalanches (see avalanche summary).  Deeper in the snowpack, a couple of older persistent weak layers may still be identifiable.  The first is from December consisting of decomposing surface hoar and a crust (buried 100-15cm) and the second from early November consisting of a series of crusts with faceted snow (closer to the ground). Prolonged periods of inactivity and unreactive snowpack test results suggest that these layers have trended towards dormancy, but they remain on the radar with forecast signifiant precipitation.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":87,"length":12,"key":1},{"offset":485,"length":12,"key":2}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=whump#whumpf"}},"1":{"type":"LINK","mutability":"MUTABLE","data":{"href":"https://www.avalanche.ca/glossary#surface-hoar","target":"_blank","url":"https://www.avalanche.ca/glossary#surface-hoar"}},"2":{"type":"LINK","mutability":"MUTABLE","data":{"href":"https://www.avalanche.ca/glossary#faceted-snow","target":"_blank","url":"https://www.avalanche.ca/glossary#faceted-snow"}}}}