Avalanche Forecast

Moderate

• We are uncertain about forecast precipitation amounts.

Tuesday’s storm follows a period of low danger and limited avalanche activity.

Looking ahead, concerns shift to the new snow: initially storm slabs in steep terrain, then lingering wind slabs, and eventually wet loose avalanches with sun and warming.

If you get out into the backcountry, post a MIN!

Snowfall amounts will vary with location and elevation, so verify in the field and use more conservative terrain where snowfall is deeper. About 30 cm is expected around the Coquihalla and Chilliwack Valley and closer to 15 cm in Manning.

This snow falls on a mix of crusts and moist or isothermal snow, depending on aspect and elevation.

The snowpack has undergone multiple melt-freeze cycles, forming a series of crusts with dense, rounded snow between.

Snowpack depth decreases significantly below 1000 m.

Tuesday Night

Mostly cloudy. 5 to 10 cm of snow. 40 km/h southwest ridgetop wind. Treeline temperature -8 °C.

Wednesday

Mostly cloudy. 0 to 1 cm of snow. 20 km/h west ridgetop wind. Treeline temperature -6 °C.

Thursday

Mostly cloudy. 1 to 3 cm of snow. 30 km/h west ridgetop wind. Treeline temperature -4 °C. Freezing level 1300 m.

Friday

Mix of sun and clouds. 1 to 3 cm of snow. 20 km/h southwest ridgetop wind. Treeline temperature -1 °C. Freezing level 1700 m.

More details can be found in the Mountain Weather Forecast.

• Start on smaller terrain features and gather information before committing to bigger terrain.
• Dial back your terrain choices if you are seeing more than 20 cm of new snow.
• Be especially cautious as you transition into wind-affected terrain.