{"blocks":[{"key":"3dmsu","text":"Small (size 1) wind slabs were reactive to skiers on Tuesday and Wednesday, along with whumphing and cracking.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"en61i","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"kdhu","text":"On Sunday natural and explosive triggered wind slabs size 1 to 2 were reported from northwest, north, northeast and east facing features between 1900 and 2300 m.  MIN reports from Sunday indicate that there was quite a bit of whumphing which is a clear sign of instability.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[{"offset":226,"length":9,"key":0}],"data":{}},{"key":"cr4u4","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"616bc","text":"A bout of sustained strong east and northeast winds prompted widespread wind slab formation and reactivity on Friday and Saturday. Many 20-50 cm deep slabs released naturally, with skier triggering and with explosives, some with remarkably wide propagation. ","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"cikts","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"199f9","text":"We also had many reports last week of persistent slab avalanches triggered by skiers at elevations around treeline (1800-2000 m) where a persistent weak layer exists as surface hoar. Persistent slab avalanche activity has been on the decline more recently, but subtle factors like diminishing slab properties and savvy terrain use may account for this trend. Professionals in the region continue to highlight persistent slabs as a lingering concern.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"d08m8","text":"","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}},{"key":"92ici","text":"Another explosives-triggered persistent slab in the Bonningtons on February 9th stepped down to our early December crust layer to produce a 200 cm deep, size 3.5 (very large!) avalanche. A similar avalanche (size 3.5, step down to December crust) occurred naturally in the same area in the first week of February.","type":"unstyled","depth":0,"inlineStyleRanges":[],"entityRanges":[],"data":{}}],"entityMap":{"0":{"type":"LINK","mutability":"MUTABLE","data":{"url":"https://avalanche.org/avalanche-encyclopedia/whumpf/"}}}}