Regions
Banff Yoho Kootenay.
Avalanche danger relates directly to daytime warming and solar radiation. Although cloudy skies are forecasted tomorrow, its still wise to get an early start and early finish.
Weather Forecast
It is expected to be cloudy throughout Monday with light precip starting about noon (if the precip comes as rain be very wary). Temperature will be near zero. Minimal solar input is expected, however localized solar input (un-forecasted) could elevate the danger rating. Approx 10-15cm is expected on Tuesday with sub zero temps.
Snowpack Summary
Solar aspects have a melt freeze crust which is deteriorating with daytime warming. Dry snow is still found on high north aspects. Many areas exhibit a cohesive midpack over the basal facets, while other thin areas have weak facets to the ground.
Avalanche Summary
No avalanches observed or reported.
Confidence
Timing or intensity of solar radiation is uncertain on Monday
Problems
Loose Wet
Loose Wet avalanches are the release of wet unconsolidated snow or slush. These avalanches typically occur within layers of wet snow near the surface of the snowpack, but they may quickly gouge into lower snowpack layers. Like Loose Dry Avalanches, they start at a point and entrain snow as they move downhill, forming a fan-shaped avalanche. Other names for loose-wet avalanches include point-release avalanches or sluffs. Loose Wet avalanches can trigger slab avalanches that break into deeper snow layers.
Persistent Slabs
Persistent Slab avalanches are the release of a cohesive layer of snow (a slab) in the middle to upper snowpack, when the bond to an underlying persistent weak layer breaks. Persistent layers include: surface hoar, depth hoar, near-surface facets, or faceted snow. Persistent weak layers can continue to produce avalanches for days, weeks or even months, making them especially dangerous and tricky. As additional snow and wind events build a thicker slab on top of the persistent weak layer, this avalanche problem may develop into a Deep Persistent Slab.