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Avalanche Forecast

Archived

Mar 18th, 2026–Mar 19th, 2026

Alpine
Natural and human triggered avalanches likely.
Treeline
Natural and human triggered avalanches likely.
Below Treeline
Natural avalanches unlikely, human triggered possible.
Alpine
Natural avalanches possible, human triggered probable.
Treeline
Natural avalanches possible, human triggered probable.
Below Treeline
Natural avalanches unlikely.
Alpine
Natural avalanches unlikely.
Treeline
Natural avalanches unlikely.
Below Treeline
Natural avalanches unlikely.

Regions

Coquihalla, Harrison-Fraser, Manning.

High avalanche danger. Avoid avalanche terrain and exposure to overhead hazards like cornices and avalanche runout zones.

Confidence

Moderate

  • We are uncertain about how the snowpack will react to the forecast weather.
  • We are uncertain due to a limited number of field observations.

Avalanche Summary

No new avalanches have been reported since Saturday. We expect a widespread natural avalanche cycle to continue.

If you are heading into the backcountry, please share any observations with the Mountain Information Network.

Snowpack Summary

The rain continues to saturate the upper snowpack. There is 80 to 100 cm in the alpine and 20 to 40 cm at lower elevations, overlying a series of early March melt-freeze crusts.

A crust with facets may exist 100 to 200 cm below the surface, primarily on northerly aspects at higher elevations. This layer appears unreactive but continues to be monitored.

The mid and lower snowpack is otherwise strong and well settled.

Weather Summary

Wednesday Night

Cloudy. 10 to 30 mm of rain at treeline. 70 km/h southwest ridgetop wind. Treeline temperature 2 °C. Freezing level 2400 m.

Thursday

Cloudy. 15 to 25 mm of precipitation as snow or rain at treeline. 60 km/h southwest ridgetop wind. Treeline temperature 1 °C. Freezing level 2100 m.

Friday

Cloudy. 10 to 45 mm of rain at treeline. 70 km/h southwest ridgetop wind. Treeline temperature 1 °C. Freezing level 2200 m.

Saturday

Mix of sun and clouds. 2 to 5 cm of snow. 50 km/h west ridgetop wind. Treeline temperature -6 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Keep in mind that the high density of wet avalanches can make them destructive.
  • Loose avalanches may start small, but they can grow and push you into dangerous terrain.
  • Avoid terrain traps such as gullies and cliffs where the consequence of any avalanche could be serious.

Problems

Loose Wet

Loose Wet avalanches are the release of wet unconsolidated snow or slush. These avalanches typically occur within layers of wet snow near the surface of the snowpack, but they may quickly gouge into lower snowpack layers. Like Loose Dry Avalanches, they start at a point and entrain snow as they move downhill, forming a fan-shaped avalanche. Other names for loose-wet avalanches include point-release avalanches or sluffs. Loose Wet avalanches can trigger slab avalanches that break into deeper snow layers.

Wet Slabs

Wet Slab avalanches are the release of a cohesive layer of snow (a slab) that is generally moist or wet when the flow of liquid water weakens the bond between the slab and the surface below (snow or ground). They often occur during prolonged warming events and/or rain-on-snow events. Wet Slabs can be very unpredictable and destructive.