Be cautious around cornices and sun-exposed slopes, and carefully assess snowpack and terrain due to uncertainty about buried weak layers.
Human-triggered persistent slab avalanches may still be possible on high north-facing slopes that haven't undergone significant melt-freeze cycles. They could also be triggered naturally by cornices or smaller avalanches.
Periods of sun will likely trigger wet loose avalanches.
Recent reports have been limited to small wet loose avalanches.
During last week's warm-up, a widespread cycle of large persistent slab avalanches occurred. The current status of this problem is uncertain, but it likely persists in areas where the upper snowpack has not undergone significant melt-freeze cycles.
Dry, settled powder may still exist on high north-facing slopes, while elsewhere, a daily melt-freeze cycle is forming a hard crust overnight that softens during the day.
Persistent weak layers from January, February, and March are buried 50 to 150 cm deep across the region, though their current reactivity remains uncertain.
At lower elevations, the rain-saturated snowpack thins quickly with elevation.
Thursday Night
Clear. 10 km/h northwest ridgetop wind. Treeline temperature -2 °C. Freezing level 1700 m.
Friday
Sunny. 10 km/h southwest ridgetop wind. Treeline temperature +1 °C. Freezing level 2000 m.
Saturday
Mix of sun and cloud. 20 km/h southwest ridgetop wind. Treeline temperature +3 °C. Freezing level 2300 m.
Sunday
Mostly cloudy with 1 to 2 mm of rain. 30 km/h south ridgetop wind. Treeline temperature +2 °C. Freezing level 2100 m.
More details can be found in the Mountain Weather Forecast.
