Check for small storm slabs at upper elevations.
Where dry snow accumulates, check for storm slabs. Deeper deposits may exist around ridges and leeward terrain, formed by east and southeast winds.
Wet loose avalanches are possible at lower elevations where the snowpack is moist or saturated from rain, or where new snow sees sun and warming for the first time.
Looking forward, we expect small storm slabs may have formed at upper elevations. Look for deeper and more reactive deposits on north- and west-facing slopes, formed by south and east winds.
Small loose wet avalanches out of steep terrain on treeline and below treeline slopes were reported on Thursday and Friday around Mt Washington.
Between 5 and 15 cm of new snow is expected by the end of the day on Monday. This falls on 20 cm of moist snow at upper elevations and what we now expect to be a crust below 1100 m, from previous above-freezing temperatures and rain.
The mid-pack contains a robust crust formed in early March. The snow above is well bonded to this crust, and below it, the snowpack is well consolidated and strong.
Sunday Night
Cloudy with 5 mm, falling as snow above 1400 m. 50 km/h southeast ridgetop winds. Treeline temperature 0 °C. Freezing level 1700 m dropping to 1000 m.
Monday
Cloudy with up to 5 mm, falling as snow above 1000 m. 10 km/h east ridgetop wind. Treeline temperature -1 °C.
Tuesday
Mostly cloudy. 20 to 30 km/h northwest ridgetop winds. Treeline temperature 1 °C.
Wednesday
Partly cloudy. 10 to 20 km/h north ridgetop winds. Treeline temperature 0 °C.
More details can be found in the Mountain Weather Forecast.
