Avalanche Forecast
Issued: Apr 11th, 2015 8:01AM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Storm Slabs.
andrew jones,
Parks Canada
Winter conditions have returned to Rogers Pass. Minimize overhead exposure and give new snow time to stabilize.
Summary
Weather Forecast
A series of fronts continue to pass through the area bringing flurries and colder temps. For today, mainly cloudy with scattered flurries accumulating to 5cm and freezing levels at 1500m. Moderate westerly winds with gust to 65km/hr on ridge tops.
Snowpack Summary
20cm of new snow fell overnight with moderate SW winds. The storm layer sits atop a crust on solar aspects and surface hoar on sheltered N aspects. Watch for deeper pockets and wind slab/ cornice development on NE lee features. There are multiple crusts in the top 1m of the snowpack that are reactive to tests but would likely need a large trigger.
Avalanche Summary
No new avalanches observed yesterday. Natural avalanches are expected today with last night's snowfall returning the area to winter conditions.
Confidence
Problems
Storm Slabs
20cm of moist snow fell at treeline with consistent SW winds. The storm slab sits atop a crust on solar aspects and surface hoar on sheltered N aspects. Strong winds will continue to develop the slab properties of this layer and increase hazard.
The new snow will require several days to settle and stabilize.Minimize exposure during periods of heavy loading from new snow, wind.
Aspects: All aspects.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Valid until: Apr 12th, 2015 8:00AM
