Avalanche Forecast
Issued: Jan 14th, 2013 10:26AM
The alpine rating is Persistent Slabs and Wind Slabs.
, the treeline rating is , and the below treeline rating is Known problems includeSummary
Confidence
Poor - Timing, track, or intensity of incoming weather is uncertain
Weather Forecast
Monday night and Tuesday: A high pressure dominates the weather bringing dry conditions. Freezing level are expected to rise up to 2500 m. and the sun to shine in the alpine while valley clouds are expected. Winds should be strong from the Northwest.Wednesday: Dry, sunny and warm conditions persist. Thursday: A cold front should lower freezing levels and bring some light snow.
Avalanche Summary
No new avalanches were reported in the region.
Snowpack Summary
The upper snowpack instabilities that were starting to settle will most likely become unstable again with the continuation of the warming trend and additional solar radiation tomorrow. Read the forecaster's blog to learn more about this process. Last week's storm snow and yesterday's snow is sitting above weak surfaces including surface hoar (found especially below about 1600 m in sheltered areas), facets and also on a sun crust on South facing slopes. Where it exists, the buried surface hoar is producing sudden collapse results and is sitting at a prime depth for triggering with rapid warming. Recent winds and some new snow have also left wind slabs in the lee of terrain breaks such as ridges and ribs at alpine elevations and also buried old windslabs. A strong mid-pack overlies a weak facet/crust layer near the base of the snowpack. Check out yesterday's YouTube video which demonstrates some of the weak layers and test results found around Valemount BC.
Problems
Persistent Slabs
Aspects: All aspects.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Wind Slabs
Aspects: North, North East, East, South East, South.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Valid until: Jan 15th, 2013 2:00PM