Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely, human triggered possible.
Below Treeline
Natural avalanches unlikely.
Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely, human triggered possible.
Below Treeline
Natural avalanches unlikely.
Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely, human triggered possible.
Below Treeline
Natural avalanches unlikely.
Regions
South Coast.
A series of weather systems are forecast over the next few days. The heaviest precipitation is confined to the coast but we could see decent amounts trickle into inland areas.
Confidence
Poor - Freezing levels are uncertain
Weather Forecast
Tonight and Saturday: Cloudy with flurries, showers, or freezing rain. The freezing level is around 800-1000 m but we could see an above freezing layer (AFL) aloft. Ridge winds are moderate from the S-SW. Sunday: Probably a drier day. Freezing levels remain around 1000 m. Winds are moderate from the southwest. Monday: Cloudy with flurries or showers. The freezing level is around 1200 m with a possible AFL and winds are moderate from the S-SW.
Avalanche Summary
No new reports of avalanches. Please let us know what you're seeing out there at [email protected].
Snowpack Summary
Around 10 cm of new snow now covers the previous variable snow surface that consisted of facets (dry sugary snow) and surface hoar in sheltered areas, or pockets of old wind slab and an ice crust in open wind-exposed terrain (depending on aspect). Fresh new wind slabs may have formed in open north and east facing slopes, especially below ridges and behind terrain features in the alpine. A weak layer of facetted snow on a crust may be lurking deeper in the snowpack, but may be limited to slopes above treeline. There's limited recent info on this weakness so I recommend digging to confirm the existence of the layer, its depth, and to test its strength. Snow pack depth and snow quality drastically diminishes as you drop below treeline.
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.