Natural avalanches possible, human triggered probable.
Treeline
Natural avalanches possible, human triggered probable.
Below Treeline
Natural avalanches possible, human triggered probable.
Alpine
Natural avalanches possible, human triggered probable.
Treeline
Natural avalanches possible, human triggered probable.
Below Treeline
Natural avalanches possible, human triggered probable.
Alpine
Natural and human triggered avalanches likely.
Treeline
Natural avalanches possible, human triggered probable.
Below Treeline
Natural avalanches possible, human triggered probable.
Regions
Glacier.
Strong solar radiation will weaken the upper snowpack, avalanche activity will increase on solar aspects as the day progresses.Avoid exposure to overhead hazards like cornices which could weaken with warming temps.
Weather Forecast
Welcome to the diurnal spring swing! Today will be sunny with an alpine high of -1, light NW winds with a freezing level rising to 2000m. We will start seeing drastic temperature swings over the next week as a strong upper ridge builds over the region, bringing clear skies and daylight freezing levels up to 3300m.
Snowpack Summary
Surface snow consists of sun crust on solar aspects and loose dry snow on polar aspects. This past weeks snow has settled into a 50cm soft slab which sits on a sun crust, hard slab in exposed areas, and facets in sheltered locations. The snowpack is generally facetted from Feb's cold streak and could loose strength quickly with the warming temps.
Avalanche Summary
Numerous avalanches from sz 1.0 - 3.0 yesterday from all aspects and elevations. The sz 3.0 came down the SE face of Catamount, skiers were in the area but its unknown if they were the trigger, no involvement. On Wed, a human-triggered size 1.5 avalanche on Glacier Crest took 1 person for a short ride on a W aspect at 2100m.
Confidence
Problems
Loose Dry
Loose Dry avalanches are the release of dry unconsolidated snow and typically occur within layers of soft snow near the surface of the snowpack. These avalanches start at a point and entrain snow as they move downhill, forming a fan-shaped avalanche. Other names for loose-dry avalanches include point-release avalanches or sluffs.
Persistent Slabs
Persistent Slab avalanches are the release of a cohesive layer of snow (a slab) in the middle to upper snowpack, when the bond to an underlying persistent weak layer breaks. Persistent layers include: surface hoar, depth hoar, near-surface facets, or faceted snow. Persistent weak layers can continue to produce avalanches for days, weeks or even months, making them especially dangerous and tricky. As additional snow and wind events build a thicker slab on top of the persistent weak layer, this avalanche problem may develop into a Deep Persistent Slab.