Heat during the day, poor over night re-freezes & an abnormally weak snowpack make for stressful times. Why be stressed all day? Why not just avoid avalanche terrain? Seems simple. Right?
Weather Forecast
Tomorrow's high will +4, but it will be there by 10am and last until late evening. The alpine winds will be around 25km/hr from the north. Skies will be cloudy in the AM, and clear a bit for the PM. No snow is expected.
Avalanche Summary
There was a widespread natural cycle (up to sz2.5) today. Solar aspects had loose wet avalanches at all elevations. The alpine & treeline had windslabs and deeper slabs fail on all aspects.
Snowpack Summary
As we quickly enter spring, the alpine snowpack is changing...FAST! The sudden spike in temperatures and solar exposure are making crusts more of a widespread layer. Expect them on any slope that sees the sun. On the shaded aspects, we have those lingering windslabs to worry about. All evidence points to these windslabs being very sensitive to temperature changes. The lack of support within the snowpack is preventing any sort of anchoring. Treeline has a similar issue, only the windslabs are thinner and not as widespread. The treeline slabs may be even touchier because of their thin nature and shorter recover (re-freeze) time at night.To share an opinion, this year's snowpack has a character that we haven't seen before. We have a long history with facets and depth hoar, but this year's crop is off the charts. As such, we feel it's necessary to acknowledge the uncertainty by avoiding large terrain right now. The snowpack has no trustworthy qualities right now.
Problems
Wind Slabs
Wind Slab avalanches are the release of a cohesive layer of snow (a slab) formed by the wind. Wind typically transports snow from the upwind sides of terrain features and deposits snow on the downwind side. Wind slabs are often smooth and rounded and sometimes sound hollow, and can range from soft to hard. Wind slabs that form over a persistent weak layer (surface hoar, depth hoar, or near-surface facets) may be termed Persistent Slabs or may develop into Persistent Slabs.
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.
Deep Persistent Slabs
Deep Persistent Slab avalanches are the release of a thick cohesive layer of hard snow (a slab), when the bond breaks between the slab and an underlying persistent weak layer deep in the snowpack. The most common persistent weak layers involved in deep, persistent slabs are depth hoar or facets surrounding a deeply buried crust. Deep Persistent Slabs are typically hard to trigger, are very destructive and dangerous due to the large mass of snow involved, and can persist for months once developed. They are often triggered from areas where the snow is shallow and weak, and are particularly difficult to forecast for and manage.