{"blocks":[{"key":"cqh4q","text":"The combination of a warm storm earlier this week followed by cooler temperatures has reworked the snowpack. Heavy rain was reported up to 1500 m, so lower elevations will now have a thick surface crust or \"dust on crust\". 15-40 cm of snow fell at higher elevations, with the largest accumulations around Valemount and Blue River.  ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":197,"length":5,"key":0}],"data":{}},{"key":"atb87","text":"The most concerning part of the snowpack remains how well this new 15-40 cm of snow is bonding to a widespread buried surface hoar layer (or above sun crusts). Thus far minimal slab properties have developed, but exposed areas at ridge crests may see some soft wind slab formation.  Carefully assess steep open slopes at intermediate elevations if you see slab properties in the snow (just above, at and below tree line).  In other words - that zone of lower  alpine terrain but above the rain line - could be holding the most dangerous problem: a storm slab over surface hoar or sun crust, especially where winds have helped create a slab.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":118,"length":12,"key":1}],"data":{}},{"key":"blf3e","text":"In the alpine this snow has formed thick wind slabs, which should generally be strengthening quickly.  ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"eh9mh","text":"As ever, assess how direct sun is affecting steep solar terrain and anticipate stuffing or loose snow avalanches when transitioning into steeper terrain.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"e1e4i","text":"Down near the ground remains a thick rain crust with sugary facets above and below from early November rains (Nov 5 Crust). While we have not seen much reactivity on this layer, it continues to produce occasional Hard results in snow tests.  It is most likely to be reactive to human triggers on shallow rocky slopes in the alpine or tee line \"alpine-like\" features or be triggered by a step down avalanche.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":387,"length":9,"key":2}],"data":{}},{"key":"7hgma","text":"Check out this MIN from Dec. 10 in the Allen Creek that report intact Surface Hoar at 1500m (just above the rain line) and a higher test result at 2100m on this deep Nov 5 crust.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":15,"length":3,"key":3}],"data":{}},{"key":"b25fk","text":"This MIN & MIN from Dec 8 mention stormy conditions, won observations & some great photos.  And this MIN from the same day tells the story of warm wet conditions (that are now refrozen down low).","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":5,"length":3,"key":4},{"offset":11,"length":3,"key":5},{"offset":101,"length":3,"key":6}],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=crust#crusts-are-hard-layers-of-snow-usually-created-by-liquid"}},"1":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=surface+hoar#surface-hoar"}},"2":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/glossary?q=step+down#step-down-avalanche"}},"3":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/mountain-information-network/submissions/86bfbaad-214b-461c-b8cb-259e9ad8767e"}},"4":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/mountain-information-network/submissions/ac56d8f8-b09f-46ec-bf87-99176cbf8bcc"}},"5":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/mountain-information-network/submissions/9887452d-bf76-4e35-ab8a-8160c9f3be09"}},"6":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/mountain-information-network/submissions/c14182ac-f2b0-430e-ad01-fcd504237b58"}}}}