Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches possible, human triggered probable.
Below Treeline
Natural avalanches possible, human triggered probable.
Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely, human triggered possible.
Below Treeline
Natural avalanches possible, human triggered probable.
Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely, human triggered possible.
Below Treeline
Natural avalanches possible, human triggered probable.
Regions
Glacier.
Temps at 2000m have remained above zero for the past 7 days resulting in poor overnight recovery and a isothermal snowpack at lower elevations.If the sun shines today, the avalanche hazard will increase rapidly as the upper snowpack loses strength.
Weather Forecast
Temperatures and freezing levels remain higher than expected and have kept avalanche hazard elevated at lower elevations. A mix of sun and cloud today with an alpine high of 0, light ridge top winds and a freezing level reaching 2000m. Temps slowly cooling off over the next few days with snow forecasted for Tuesday (5cm).
Snowpack Summary
High freezing levels all week have resulted in poor overnight recovery of the snow surface. Expect to find a breakable crust in the morning on all aspects at and below tree line and for the crust to break down into moist snow by the afternoon. Isothermal conditions exist below tree line. Cool dry snow exists on high Northerly aspects
Avalanche Summary
The natural spring avalanche cycle has continued for 7 days and still produced several avalanches sz 2.0 - 3.0 yesterday on the steep solar aspects, originating in the alpine and running to below tree line. Multiple artillery and helicopter control missions this week produced numerous avalanches up to sz 3.0 on all aspects.
Confidence
Timing or intensity of solar radiation is uncertain
Problems
Loose Wet
Loose Wet avalanches are the release of wet unconsolidated snow or slush. These avalanches typically occur within layers of wet snow near the surface of the snowpack, but they may quickly gouge into lower snowpack layers. Like Loose Dry Avalanches, they start at a point and entrain snow as they move downhill, forming a fan-shaped avalanche. Other names for loose-wet avalanches include point-release avalanches or sluffs. Loose Wet avalanches can trigger slab avalanches that break into deeper snow layers.
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.