Avalanche Forecast
Issued: Feb 7th, 2012 9:11AM
The alpine rating is Wind Slabs and Cornices.
, the treeline rating is , and the below treeline rating is Known problems includeSummary
Confidence
Fair - Forecast snowfall amounts are uncertain
Weather Forecast
On Wednesday expect increased cloud throughout the region. Weather models are disagreeing on snowfall amounts for Thursday/Friday. Some are claiming 5-10cm for each day, while others are looking a lot drier. Stay tuned for more info. Winds are expected to be light to moderate from the northwest trending to light and variable by Friday. Freezing levels are expected to be at about 1100m on Wednesday trending to about 1400m for Thursday/Friday.
Avalanche Summary
A few newly developed windslabs to size 1.5 were observed in the alpine on Monday.
Snowpack Summary
January was a snowy month in the South Columbia region and average snowpack depths at 1700m are now between 2 and 3m. The upper snowpack is now well settled and riders have gained increased confidence on steeper terrain. The one exception may be new wind slabs that formed with moderate alpine winds on Monday/Tuesday. Deeper weaknesses in the snowpack seem to less of a concern; however, in the southern end of the region there is still talk of basal facets as some operators are avoiding thin and rocky alpine features. Over the weekend there was s spike in alpine temperatures that sparked a significant avalanche cycle. With the more recent cooling pattern there has been a crust recovery on previously sun-exposed slopes, and there has been a general significant strengthening of the snowpack. If you're heading into the mountains, it's a good time to take stock of evolving layers (crusts, surface hoar) that may be an issue when it finally snows again.
Problems
Wind Slabs
Aspects: North, North East, East, South East.
Elevations: Alpine.
Likelihood
Expected Size
Cornices
Aspects: North, North East, East.
Elevations: Alpine.
Likelihood
Expected Size
Valid until: Feb 8th, 2012 3:00AM