Unsettled conditions continue, with the potential for significant localized snowfall.
Verify conditions as you go and adjust terrain choices if you notice signs of instability.
Additional overnight snowfall will contribute to reactive storm slabs. These slabs will be largest and most reactive on northerly slopes. Be aware of the potential for loose avalanches in steep terrain where snow hasn't formed a slab.
On Friday, a few dry loose avalanches (size 1) were triggered out of steep terrain by wind on northerly slopes near Mount Washington.
Human-triggered storm slabs also occurred during this stormy period (up to size 1) on west, north and east aspects at treeline and below throughout the region.
Thanks for sharing your observations via the MIN if you are going out into the backcountry.
The region received another 15 to 20 cm of new snow this weekend, accompanied by moderate to strong southerly wind, building new storm slabs on most aspects. Unsettled conditions have brought up to 35 cm of new snow in localized areas. Under this storm snow, a thin crust is found on southerly aspects.
A robust crust, formed in early March, can be found down 50 to 100 cm. The snow above is well bonded to this crust. Below this, the snowpack is well consolidated and strong.
Sunday Night
Cloudy with 5 to 10 cm of new snow. 30 to 40 km/h southwest ridgetop wind. Treeline temperature -4 °C. Freezing level 800 m.
Monday
Partly cloudy with isolated flurries. 30 to 40 km/h west ridgetop wind. Treeline temperature -3 °C. Freezing level 1000 m.
Tuesday
Mix of sun and clouds. 20 to 30 km/h southwest ridgetop wind. Treeline temperature -1 °C. Freezing level 1200 m.
Wednesday
Cloudy with 5 to 10 cm of new snow. 40 to 60 km/h southeast ridgetop wind. Treeline temperature -1 °C. Freezing level 1200 m.
More details can be found in the Mountain Weather Forecast.
