{"blocks":[{"key":"vc2n","text":"Recent west and northwest winds have formed wind slabs on lee features at treeline and above. These slabs may remain more reactive on south facing slopes where they are sitting on a slippery sun crust. Below the recent snow, there may be a layer of small surface hoar that is likely most pronounced on northerly aspects or sheltered locations.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"2bp2f","text":"Lower elevations have seen warm temperatures last week and have a melt-freeze crust on the surface below 1800 m.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"78jjt","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"452km","text":"The late February persistent weak layer combination of crust, facets and surface hoar is buried up to 50cm deep, and has been reactive mostly on south facing slopes during periods of sun. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"c2gje","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"dsnkv","text":"Two additional persistent weak layers sit 50-120 cm deep, from mid February and late January. They both consist of surface hoar and/or melt-freeze crusts. Recent trends indicate these layers have been more reactive in southern Selkirks around the Valhalla, Kokanee, and Goat Ranges. Several natural and human triggered avalanches have been produced on these layers in the last week. See the Avalanche Summary for full details. ","type":"unstyled","depth":0,"inlineStyleRanges":[{"offset":383,"length":44,"style":"UNDERLINE"}],"entityRanges":[],"data":{}},{"key":"1j0bc","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"5l9of","text":"The most likely triggers of these persistent weak layers are strong solar radiation and/or large triggers such as smaller avalanches in motion, cornices, or snowmobiles.","type":"unstyled","depth":0,"inlineStyleRanges":[{"offset":0,"length":169,"style":"BOLD"}],"entityRanges":[],"data":{}}],"entityMap":{}}