Freezing levels are forecast to rise, wet avalanche hazard will increase as the snow turns moist.
Freezing levels are forecast to rise, wet avalanche hazard will increase as the snow turns from dry to wet.
Isolated reactive pockets of dry snow may linger on northerly aspects at the highest elevations.
On Saturday, skiers triggered a size 2 avalanche in the Mt Washington backcountry.
On Thursday and Friday, riders triggered small (size 1-1.5) wind slab avalanches in lee features at upper elevations. (Slidetastic 5040 MIN)
On Friday morning, explosives triggered several small wind slab avalanches from steep northerly terrain.
Sun and rising freezing levels will turn most surfaces moist by Monday afternoon. Dry snow and lingering wind slabs may persist on northerly aspects at the highest elevations.
Wind, wet flurries, and rising temperatures have encouraged 20 to 40 cm of recent snow to settle. This covers 50 to 80 cm of older snow over a series of crusts. Overall the lower snowpack is bonded and well-settled.
Below 1500 m, surfaces may be moist or crusty.
Snowpack depths at treeline average 200 to 300 cm.
Sunday night
Cloudy with starry breaks. 5 to 15 km/h variable ridgetop wind. Treeline temperature -1 °C. Freezing level 1500 m.
Monday
Sunny. 15 to 25 km/h east ridgetop wind. Treeline temperature +3 °C, freezing level rising above 2500 m.
Tuesday
Sun and cloud. 60 to 80 km/h southwest ridgetop wind. Treeline temperature +3 °C, freezing level 2300 m.
Wednesday
Cloudy with isolated flurries, 5 cm. 30 to 50 km/h ridgetop southwest wind. Treeline temperature +1°C, freezing level 2300 m..
More details can be found in the Mountain Weather Forecast.
