Avalanche Forecast
Issued: Jan 22nd, 2019 4:38PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Storm Slabs.
kdevine,
Avalanche Canada
New snow and wind will mean that storm slabs are to be expected, and will likely be reactive to human triggering, especially in wind loaded areas.
Summary
Confidence
Moderate - Forecast snowfall amounts are uncertain
Weather Forecast
TUESDAY NIGHT - Snow, 15-25 cm / southwest winds, 30-40 km/h / alpine low temperature near -2 / freezing level 1100 mWEDNESDAY- Cloudy with sunny periods / northwest winds, 10-20 km/h / alpine high temperature near -1 / Freezing level 1200 mTHURSDAY - Mainly cloudy / northwest winds, 15-30 km/h / alpine high temperature near 0 / freezing level 1200 m / alpine temperature inversionFRIDAY - Cloudy with sunny periods / northwest winds, 10-20 km/h / alpine high temperature near +2 / freezing level 1200 m / possible alpine temperature inversion
Avalanche Summary
A few size 1 explosives triggered avalanches were reported in the region on Tuesday.Avalanche activity quieted down on Sunday, with humans and explosives triggering a few small (size 1) wind slabs in lee features at treeline and in the alpine. On Friday and Saturday, many small to large (size 1 to 2) slab avalanches within the storm snow were triggered naturally, by humans and with explosives. For examples, check out the MIN reports here and here.
Snowpack Summary
Another 20-35 cm of new snow fell between Tuesday morning and Wednesday morning. This brings total recent snowfall amounts to approximately 40-60cm. This new snow likely sits on a sun crust on south facing slopes and surface hoar (feathery crystals) in sheltered and shaded areas. Recent strong to extreme southerly winds will have redistributed the new snow, forming storm slabs. Expect to find deeper deposits of snow in wind loaded terrain.
Problems
Storm Slabs
Expect to find deeper deposits of new snow and more reactive slabs in wind loaded areas.
Watch for signs of instability, such as whumpfing, cracking, or recent avalanches.Be careful with wind loaded pockets, especially near ridge crests and roll-overs.
Aspects: All aspects.
Elevations: All elevations.
Likelihood
Expected Size
Valid until: Jan 23rd, 2019 2:00PM
