Spring is here! Watch for the sun warming steep, sunny slopes in the afternoon.Potential remains to trigger a persistent slab on alpine, north-facing slopes.
A weak layer of facets rests above a hard melt freeze crust buried 50 to 110 cm. Where the surface has a thick hard crust, human triggering of this weak layer is unlikely.
Loose wet avalanches and cornice failures are most likely during the warmest part of the day when the surface snow is moist or wet.
No new avalanches have been reported since last weekend, but field observations have been limited.
If you head to the backcountry please consider submitting your observations to the MIN.
A widespread crust is capping the surface of the snowpack in most areas, and is expected to decrease the likelihood of triggering avalanches. This crust may soften and melt during the day as it warms. Shady, upper-elevation slopes may have 5 to 10 cm of soft snow over this crust in some parts of the region.
Another crust, formed in early February, is buried about 50 to 110 cm deep. This crust has a weak layer of facets above it in many areas. Triggering this layer is unlikely in most areas, but remains possible mainly on high-elevation north-facing slopes.
Saturday Night
Clear. 20 km/h northeast ridgetop winds. Treeline temperatures drop to -15 °C.
Sunday
Sunny. 10 km/h southwest ridgetop winds. Treeline temperature high of 1 °C. Freezing level rising to 1500 m.
Monday
Sunny. 20 km/h southwest ridgetop winds. Treeline temperature high of 2 °C. Freezing level rising to 1700 m.
Tuesday
Increasing clouds. 30 to 40 km/h west ridgetop winds. Treeline temperature high of 3 °C. Freezing level 1700 m.
More details can be found in the Mountain Weather Forecast.
