{"blocks":[{"key":"dju6p","text":"The most recent snow has been redistributed by strong southwest winds in exposed areas, loading lee features with stiffer, more reactive slabs. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":95,"length":13,"key":0}],"data":{}},{"key":"7o6dt","text":"A total of 40-70 cm of snow has fallen over the past week burying a weak layer of feathery surface hoar and a hard melt-freeze crust on sun-exposed aspects. This layer has demonstrated reactivity past its due date as a storm slab interface, and it continues to produce large avalanches across aspects and elevations.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":91,"length":12,"key":1}],"data":{}},{"key":"9t7ao","text":"The base of the snowpack in the Purcells is much weaker than in an average season, and there are deeper weak layers down 70 to 180 cm. This weakness is widespread across all aspects and elevations, and it consists of crust, facets and depth hoar. Recent snowfalls in the past two weeks have overloaded these deeply buried weak layers resulting in very large and destructive avalanches. It is possible that easier-to-trigger wind slab avalanches could step down to these deeper, persistent layers or that the weak layers could be human-triggered in areas where the snowpack is thin, rocky, or variable. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":217,"length":5,"key":2},{"offset":224,"length":6,"key":3},{"offset":235,"length":11,"key":4},{"offset":451,"length":9,"key":5},{"offset":576,"length":24,"key":6}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"href":"https://www.avalanche.ca/glossary#leeward","target":"_self","url":"https://www.avalanche.ca/glossary#leeward"}},"1":{"type":"LINK","mutability":"MUTABLE","data":{"href":"https://www.avalanche.ca/glossary#surface-hoar","target":"_self","url":"https://www.avalanche.ca/glossary#surface-hoar"}},"2":{"type":"LINK","mutability":"MUTABLE","data":{"href":"https://www.avalanche.ca/glossary?q=crust#facetcrust-layer","target":"_self","url":"https://www.avalanche.ca/glossary?q=crust#facetcrust-layer"}},"3":{"type":"LINK","mutability":"MUTABLE","data":{"href":"https://www.avalanche.ca/glossary?q=depth+hoar#faceted-snow","target":"_self","url":"https://www.avalanche.ca/glossary?q=depth+hoar#faceted-snow"}},"4":{"type":"LINK","mutability":"MUTABLE","data":{"href":"https://www.avalanche.ca/glossary?q=depth+hoar","target":"_self","url":"https://www.avalanche.ca/glossary?q=depth+hoar"}},"5":{"type":"LINK","mutability":"MUTABLE","data":{"href":"https://www.avalanche.ca/glossary#step-down-avalanche","target":"_self","url":"https://www.avalanche.ca/glossary#step-down-avalanche"}},"6":{"type":"LINK","mutability":"MUTABLE","data":{"href":"https://www.avalanche.ca/glossary#a-shallow-rocky-start-zone-is-an-area-of-the-snowpac","target":"_self","url":"https://www.avalanche.ca/glossary#a-shallow-rocky-start-zone-is-an-area-of-the-snowpac"}}}}