Use extra caution at treeline.
There is some uncertainty in the distribution of buried surface hoar. In areas where surface hoar exists it is most likely to be preserved at treeline.
Up to 35 cm of recent snow HAS FORMED a storm slab at all elevations. The largest slabs will be found on wind loaded terrain in the alpine. This new snow could overlie a surface hoar layer at treeline which it likely won't bond well to.
Visibility was limited on Saturday but there were still some avalanches observed. Naturally and explosive triggered avalanches up to size 2 were reported in the north of the region. Most of these avalanches were on northerly aspects.
Up to 35 cm of recent storm snow has been redistributed by variable winds. Wind slab could be found on all aspects. This new snow could overlie large surface hoar at treeline and a crust below treeline.
The mid pack contains several crusts from November. In general, the mid pack is well settled. The height of snow at treeline is around 150 cm and tapers rapidly below treeline.
Sunday Night
Mostly clear with trace amounts of new snow expected, southwest alpine wind 10 to 25 km/h, treeline temperature -1°C.
Monday
A mix of sun and cloud with trace amounts of new snow possible, southwest alpine wind 15 to 30 km/h, treeline temperature -1°C, possible temperature inversion with colder temperatures below treeline.
Tuesday
Cloudy with 10 to 40 cm of new snow expected, south alpine wind 30 to 70 km/h, freezing level rising to 1400 m.
Wednesday
Cloudy with up to 20 cm of new snow expected, southwest alpine wind 30 to 60 km/h, freezing level falling to 700 m
More details can be found in the Mountain Weather Forecast.
