{"blocks":[{"key":"dpocm","text":"On Monday, visibility was limited but reports include isolated natural wind slabs up to size 1.5 and loose dry avalanches. Explosives and skiers were triggering slabs which were typically size 1-1.5 with a single size 2 reported. This MIN report from the south of the region shows an example of the instability in the storm snow and good decision making. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":230,"length":15,"key":0}],"data":{}},{"key":"7umdd","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"ft6d6","text":"On Tuesday just east of the region in the Rockies near Invermere, a remotely triggered size 3.5 persistent slab avalanche was reported at 2300 m on a W aspect. This was triggered from the ridge and the failure started in the early-Dec layer down 120 cm but subsequently stepped down to the basal weakness. The resulting crown was 2-3 m deep and the avalanche ran about 1 km to the valley bottom. While this was not in the Purcells region, it provides an example of what might be possible with the weak layers deep in the snowpack. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"6t16j","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"gvt1","text":"On Wednesday, recently formed storm slabs are expected to remain reactive to human triggering. These new slabs may sit on a weak interface which may result in them persisting longer than normal. The early-Dec persistent slab problem remains a serious concern and the weight of the new snow may have increased the reactivity of these deeper layers. Smaller storm slab avalanches also have the potential to step down to deeper layers resulting in very large avalanches. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://www.avalanche.ca/mountain-information-network/submissions/e79433eb-c25b-4240-b9bb-71db4cda3116"}}}}