{"blocks":[{"key":"353gc","text":"The Purcells received 60-120 cm from last weekend's big storm which has been settling into a slab over a couple of buried surface hoar layers 70-180 cm below the surface. This is normally a recipe for a concerning persistent slab avalanche problem in its own right, but the character of the lower snowpack complicates matters.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":122,"length":12,"key":0}],"data":{}},{"key":"bdpo6","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"f2ndi","text":"The base of the snowpack is astonishingly weak, much weaker than in an average season. This weakness is widespread across aspects and elevation bands, meaning it's almost everywhere. This basal layer consists of crust, facets and depth hoar. With the addition of the new snow last weekend, this weakness became overloaded and its failure has resulted in some spectacularly large and destructive avalanche activity.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":212,"length":5,"key":1},{"offset":219,"length":6,"key":2},{"offset":230,"length":11,"key":3}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"href":"https://www.avalanche.ca/glossary?q=persistent+weak+layer#surface-hoar","target":"_self","url":"https://www.avalanche.ca/glossary?q=persistent+weak+layer#surface-hoar"}},"1":{"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"}},"2":{"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"}},"3":{"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"}}}}