Avalanche Forecast
Issued: Feb 23rd, 2018 3:00PM
The alpine rating is Wind Slabs and Deep Persistent Slabs.
, the treeline rating is , and the below treeline rating is Known problems includeSummary
Confidence
-
Weather Forecast
Overnight low of -19C with moderate west winds. Tomorrow will be another windy day with gusts reaching 55km/hr. No snow is expected. Temps will rise to -14C in the alpine.
Avalanche Summary
Nothing on the Spray, but the shallow front ranges and Bow Valley now have depth hoar and facet avalanches running in very steep terrain.
Snowpack Summary
Not much has changed in the last day. The winds continue to have their way with the alpine snowpack. But unless the winds shift, no more damage can be done since all available snow has been blown away. Treeline is still a mixed bag of decent soft snow and old wind slabs that are faceting(weakening) out with the cold. Below treeline remains the same. None of the persistent layers have become reactive in the last 24 hours. For the most part, these layers are down about a meter and are within a 10-15cm range of each other. For simplicity, we are collectively calling these 3 layers a deep persistent slab problem. Cornices have grown considerably, but at this point they're hanging in there with no failures noted.
Problems
Wind Slabs
Aspects: North, North East, East, South East, South.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Deep Persistent Slabs
Aspects: All aspects.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Valid until: Feb 24th, 2018 2:00PM