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Avalanche Forecast

Archived

Apr 20th, 2026–Apr 21st, 2026

Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely, human triggered possible.
Below Treeline
Natural avalanches unlikely, human triggered possible.
Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely, human triggered possible.
Below Treeline
Natural avalanches unlikely.
Alpine
Natural avalanches unlikely.
Treeline
Natural avalanches unlikely.
Below Treeline
Natural avalanches unlikely.

Regions

North Columbia, North Rockies, McBride, Premier, Quesnel, Sugarbowl, Clemina, East Kakwa, Kakwa, McGregor, Pine Pass, Renshaw, Robson, Tumbler.

Watch for changing conditions as you change aspect and elevation.

The highest avalanche danger will be on wind-loaded slopes, and steep slopes seeing intense spring sun.

Confidence

Moderate

  • We are uncertain due to a limited number of field observations.

Avalanche Summary

On Sunday, north of Blue River, a small (size 1) natural wet loose avalanche cycle was reported on steep treeline slopes facing the sun.

Observations are currently very limited in this region. Please consider submitting a MIN to let us know what you're seeing out there.

Snowpack Summary

At upper elevations, wind, sun, and spring temperatures continue to impact 20 to 40 cm of recent powder. Sun and rising freezing levels will turn snow moist during the day, warm temperatures overnight will prevent a crust from forming.

Below the recent snow, a hard crust exists on all aspects to at least 2500 m.

The mid and lower snowpack is well settled and strong in most areas.

Check out this Conditions Update for tips on managing the current spring conditions.

Weather Summary

Monday Night

Partly cloudy. 1 to 5 mm of rain at treeline, with the highest amounts most likely in the Cariboos. 30-60 km/h west ridgetop wind, with the highest speeds being in the north and east of the forecast area. Treeline low 1 °C. Freezing level falling to 2000 m.

Tuesday

Mostly sunny. 25-40 km/h west ridgetop wind, with the highest speeds being in the north and east of the forecast area. Treeline high 4 °C. Freezing level rising to 2300 m.

Wednesday

Mostly sunny. 1 to 5 mm of precipitation as snow or rain at treeline. 30 km/h northwest ridgetop wind. Treeline temperature -1 °C. Freezing level 1600 m.

Thursday

Mix of sun and clouds. 1 to 4 cm of snow. 30 km/h northwest ridgetop wind. Treeline temperature -3 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Be alert to conditions that change with elevation, aspect, and exposure to wind.
  • Pay attention to isolated wind affected features in the alpine, as well as cross-loaded features at treeline.
  • Avoid steep, sun-exposed slopes when the air temperature is warm or when solar radiation is strong.
  • Use extra caution around cornices: they are large, fragile, and can trigger slabs on slopes below.

Problems

Wind Slabs

Wind Slab avalanches are the release of a cohesive layer of snow (a slab) formed by the wind. Wind typically transports snow from the upwind sides of terrain features and deposits snow on the downwind side. Wind slabs are often smooth and rounded and sometimes sound hollow, and can range from soft to hard. Wind slabs that form over a persistent weak layer (surface hoar, depth hoar, or near-surface facets) may be termed Persistent Slabs or may develop into Persistent Slabs.

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.

Cornices

Cornice Fall is the release of an overhanging mass of snow that forms as the wind moves snow over a sharp terrain feature, such as a ridge, and deposits snow on the downwind (leeward) side. Cornices range in size from small wind drifts of soft snow to large overhangs of hard snow that are 30 feet (10 meters) or taller. They can break off the terrain suddenly and pull back onto the ridge top and catch people by surprise even on the flat ground above the slope. Even small cornices can have enough mass to be destructive and deadly. Cornice Fall can entrain loose surface snow or trigger slab avalanches.