Avalanche danger can change during the course of a day. Avalanche danger will be LOW where there is a hard refrozen surface and may rise, with natural avalanches possible, during periods of warming.
Summary
Confidence
Fair - Due to limited field observations
Weather Forecast
Sunday: Sunny breaks. Cloud increasing through the day and light precipitation starting by evening. Light to moderate SW winds. Freezing level around 1800 m.Monday: Light to moderate convective precipitation. Moderate SW winds. Freezing level around 1600 m. Clearing in the evening.Tuesday: Sunshine in the morning, changing to cloud and light precipitation late in the day. Moderate S winds. Freezing level around 1400 m.
Avalanche Summary
Recent reports include cornice fall and loose wet avalanches. Full-depth size 2-3 glide avalanches have been releasing on rock slabs.
Snowpack Summary
Glide cracks have opened up and pose the threat of large, full-depth releases, especially on steep rocky terrain features at low elevations. Recently, a lack of overnight freezing at low elevations left the snowpack weak. Once a few good freezes occur, stability should improve dramatically. Large cornices pose a threat from above. A buried crust/surface hoar layer from late March, within the upper 1.5 m of the snowpack, is reported to have gained strength in the Duffey Lake area, but may remain a lingering concern. At this time of year, snowpack stability tends to decrease during times of warming (e.g. on slopes receiving sunshine, during rainfall, in the afternoon and at low elevations).
