Avalanche Forecast

Moderate

• We are uncertain about alpine conditions due to limited field observations.

Numerous naturally and skier triggered storm slabs were reported in the region on Wednesday and Thursday. These avalanches ranged from size 1 to 2 and occurred on north through east aspects in the alpine and at treeline. Wind loading was likely a factor in the location of these avalanches.

Dry loose avalanches in steep terrain continue to be reported as well.

By Friday afternoon another 5 to 15 cm could accumulate in the region, snowfall amounts are expected to be variable. Strong southwest wind is expected to redistribute snow into deeper deposits on north and east aspects.

The 10 to 15 cm thick crust that formed as a result of the atmospheric river event is found down 40 to 60 cm. This crust extends up to at least 1500 m in the north and 2000 m in the south. Moist snow is found beneath this crust.

The early February crust is found at depths of 100 to 160 cm. This layer is not currently a concern.

The remainder of the snowpack is generally well settled and bonded.

Thursday Night
Mostly cloudy. 1 to 10 cm of snow. 50 km/h southwest ridgetop wind. Treeline temperature -8 °C.

Friday
Mostly cloudy. 3 to 5 cm of snow. 40 km/h southwest ridgetop wind. Treeline temperature -8 °C.

Saturday
Mix of sun and clouds. 4 to 10 cm of snow. 20 km/h west ridgetop wind. Treeline temperature -10 °C.

Sunday
Mix of sun and clouds. 1 to 2 cm of snow. 10 km/h west ridgetop wind. Treeline temperature -9 °C.

More details can be found in the Mountain Weather Forecast.

• Be careful as you transition into wind-affected terrain.
• Recent strong wind means wind slabs may be found farther downslope than expected.
• Closely monitor how the new snow is bonding to the old surface.
• Use extra caution around cornices: they are large, fragile, and can trigger slabs on slopes below.
• Loose avalanches may start small, but they can grow and push you into dangerous terrain.