Avalanche Forecast
Issued: Apr 25th, 2017 4:00PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Loose Wet, Persistent Slabs and Loose Dry.
snow safety,
Avalanche Canada
Even short solar inputs will increase the reactivity of the new snow. Watch for changing conditions through the day.
Summary
Weather Forecast
Clearing overnight with increased cloud cover Wednesday morning, more precipitation is forecasted with amount ranging from 5-10cm. Winds are expected to remain light in the alpine. Temperatures will hover around zero degrees for the valley with alpine temperature in the -5 to -10 range.
Snowpack Summary
20-40cm of new snow overnight with minimal winds Tuesday kept the storm snow light in the alpine, steep solar aspects and lower elevations did see settlement and moistening in the storm snow. The new snow sit over numerus melt freeze crust's on all aspects below 2300m and high alpine on solar. The weak basal facets remain a concern in alpine areas.
Avalanche Summary
Numerus loose dry avalanches to size 1.5 have released in the storm snow, although no real slab has developed in the new snow, the storm interface is touchy and easy to trigger loose avalanches.
Confidence
Problems
Loose Wet
Increase solar input or temperatures will quickly effect the new snow, watch for pin wheeling and moistening of the snow surface through the day.
- Pay attention to sluffing off cliffs and steep solar terrain, signs of a warming snowpack.
- If triggered the loose wet sluffs may step down to deeper layers resulting in large avalanches.
Aspects: North, North East, East, South East.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Persistent Slabs
The snowpack is gaining strength, but the weak basal facets continue to produce sudden collapse results and can produce large avalanches with large triggers or heat. Stick to planar, supported slopes with a deeper snowpack when entering steep terrain
- Pay attention to overhead hazards like cornices which could easily trigger the deep persistent slab.
Aspects: All aspects.
Elevations: Alpine.
Likelihood
Expected Size
Loose Dry
Up to 40cm of new snow with little inputs from wind , sun or rising temperatures has kept the storm snow light. This snow is bonding poorly to the old surface causing a loose dry avalanche problem thats easy to trigger.
Aspects: All aspects.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Valid until: Apr 26th, 2017 4:00PM
