Kananaskis Country, Alberta Parks Avalanche Forecast
Apr 14th, 2012 4:00PM
The sun may come out a bit on Sunday so watch for decreases in stability on solar aspects. Temperatures are forecast to cool down slightly over the next 24hrs.
Fair - Freezing levels are uncertain on Sunday
A weak high pressure ridge is beginning to push into the forecast region by Sunday bringing with it some slightly cooler air. This will see a bit more of a broken to scattered cloud pattern and the possibility of some sun. Watch for quick decreases in stability related to the sun coming out.
A few new isolated loose snow avalanches from higher elevations on all aspects up to size 2. At lower elevations below 2000m, a few wet slab avalanches were observed in the HWY40 drainage due to recent winds. These wet slabs can be very destructive and as a result, a few paths have been extended beyond their historical boundaries.
Up to 30cm of recent HST at higher elevations continues to be redistributed by the variable winds. This new snow is rapidly forming storm slabs as conditions are ideal for slab development due to warm temps and L-M winds. Snowpack at lower elevations is approaching isothermal.
Recent variable winds have formed pockets of windslabs up to 50cm along ridgelines and in cross loaded features in Alpine terrain.
Expected Size1 - 4
The Feb surface hoar and basal facets are a concern deeper in the snowpack. Solar radiation and large loads, such as cornices, have triggered avalanches up to size 3.5 over the past week. Make sure where you are in relation to large overhead terrain
Aspects:North, North East, East, South East, South.
Expected Size3 - 7
If the sun does come out of Sunday we may see a few loose wet slides on solar aspects. Keep an eye on overhead terrain as there is a chance that even a smaller loose slide can step down to a deeper basal weakness.
LikelihoodLikely - Possible
Expected Size1 - 3
Valid until: Apr 15th, 2012 9:00AM