Avalanche Forecast

Issued: Apr 6th, 2023 4:00PM

The alpine rating is moderate, the treeline rating is moderate, and the below treeline rating is low. Known problems include Wind Slabs.

Avalanche Canada jleblanc, Avalanche Canada


A significant storm is hitting the South Coast ranges tonight and may spill over in this region.

Dial back your terrain choices if you are seeing more than 20 cm of new snow Friday.




Avalanche Summary

Thin naturally triggered wind slabs were observed on the Coquihalla in the past 24 hours. A natural storm slab was also observed on a north-easterly aspect at 1800 m on Tuesday near Yak Peak. Old evidence of loose dry avalanches out of steep, north-facing terrain near treeline and loose wet avalanches out of steep solar aspects at all elevations may still be visible.

If you head out in the backcountry, let us know what you are seeing by submitting a report to the Mountain Information Network.

Snowpack Summary

Surfaces are variable according to aspects and elevations. At low elevations, a moist or crusty surface has likely formed. At upper elevations, shady wind-sheltered areas may still hold dry, low-density snow. Last week's storm (30-50 cm) has seen some evidence of wind loading near ridge tops. This snow appears to be bonding well to underlying surfaces, including melt-freeze crusts. Snow at low elevations is rapidly settling out.

The mid and lower snowpack consists of several old crusts and facetted snow that continue to be monitored, particularly in shallow snowpack areas.

Weather Summary

A warm system is crashing into the nearby South Coast ranges Thursday night, bringing wet snow or rain. Warm & windy conditions are expected to impact the region over the weekend.

Thursday night

Cloudy. Isolated flurries or light rain. Moderate south wind gusting 40 km/h. Alpine low 0 °C. Freezing level steady around 1800 m.


Cloudy. Isolated flurries. Local amounts 5-10 cm. Moderate southwest wind gusting 50 km/h. Alpine high -2 °C. Freezing level lowers to 1500 m.


Cloudy. Isolated flurries up to 5 cm. Moderate southwest wind gusting 50 km/h. Alpine high -3 °C. Freezing level rises to 1300 m.


Snow 15-20 cm. Moderate southwest wind gusting 50 km/h. Alpine high -4 °C. Freezing level steady around 1400 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Be alert to conditions that change with aspect and elevation.
  • Watch for newly formed and reactive wind slabs as you transition into wind affected terrain.
  • Seek out sheltered terrain where new snow hasn't been wind-affected.
  • The more the snow feels like a slurpy, the more likely loose wet avalanches will become.


Wind Slabs

An icon showing Wind Slabs

Relentless southerly winds will keep transporting snow to develop wind slabs at upper elevations. As they form, they will be increasingly creative. Rider-triggerable avalanches will be possible, especially on steep, unsupported and/or convex terrain features.

Aspects: North, North East, East, West, North West.

Elevations: Alpine, Treeline.



Expected Size

1 - 2

Valid until: Apr 7th, 2023 4:00PM