Avalanche Forecast
Issued: Dec 11th, 2017 4:30PM
The alpine rating is , the treeline rating is , and the below treeline rating is
mgrist,
Avalanche Canada
Summary
Confidence
Moderate - Due to the number of field observations
Weather Forecast
We'll see little change in the weather pattern: valley cloud and cool temperatures down low but sunny and relatively warm up high. TUESDAY: Sunny with increasing cloud in the afternoon. Light to moderate west wind. Freezing level near 2000 m with a colder air layer in the valleys. WEDNESDAY: Sunny with cloudy periods. Light northerly winds. Freezing level around 1200m.THURSDAY: Cloudy. Light wind. Freezing level near 2000 m.
Avalanche Summary
On Saturday, a few wet loose avalanches to Size 1.5 were reported on steep south and west aspects. Last week, a few size 3 natural avalanches were reported on steep north (east) facing alpine faces in the Selkirks and also near 2500m east of Rogers Pass. The failure layers are unknown, but likely an early season crust.
Snowpack Summary
Daytime warming has only had effects on steep sunny slopes. With decreasing temperatures and some thin cloud, the sun's effects will be minimal. Crusts from late November have been showing reasonable bonding in snowpack and slope tests. Isolated wind slabs may still be found behind ridges and ribs, primarily on north through east aspects. Below treeline, the snowpack is shallow--look out for early season hazards like open creeks and tree stumps.
Valid until: Dec 12th, 2017 2:00PM
