Expect to find deposits of reactive wind slab.
A buried weak layer could mean larger-than-expected avalanches.
South and east winds have formed reactive slabs. Watch for corniced ridges, cross-loaded features, and convex rollovers.
These slabs may step down to deeper layers, producing larger-than-expected avalanches.
On Friday a size 3 avalanche occurred near Haines, running over the highway.
A few size 1.5 wind slab avalanches were reported by the Field Team in the Nadahini area on Thursday, failing below corniced ridgeline features. Skiers were able to trigger wind slab deposits on north- and east-facing slopes near Haines Junction.
If you go into the backcountry, please submit your observations to the Mountain Information Network.
Warm temperatures over the weekend may have formed a surface crust up to 1500 m.
Moderate and strong south and east winds have redistributed 30 cm of new snow. Expect to find reactive deposits in leeward terrain. Many windward features are stripped back to the ground.
A weak layer of faceted crystals or surface hoar found 50 to 80 cm deep remains a concern.
Sunday Night
Cloudy with 1 cm of snow possible. 30 to 40 km/h south ridgetop wind. Treeline temperatures -3 °C. Freezing level drops to 500 m.
Monday
Cloudy. 10 to 20 km/h south ridgetop wind. Treeline temperature high of -2 °C. Freezing level 750 m.
Tuesday
Mostly cloudy. 30 km/h north ridgetop wind. Treeline temperature high of -2 °C. Freezing level 900 m.
Wednesday
Partly cloudy. 30 to 40 km/h north ridgetop wind. Treeline temperature high of -2 °C.
More details can be found in the Mountain Weather Forecast.
