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Avalanche Forecast

Archived

Apr 3rd, 2026–Apr 4th, 2026

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

Regions

Coquihalla, Harrison-Fraser, Manning, Skagit.

Wind has transported the new snow into slabs and continues to build large fragile cornices.

Even brief periods of strong sun can begin to destabilize the snowpack.

Confidence

Moderate

  • We are uncertain due to a limited number of field observations.
  • We are uncertain about how the timing or intensity of solar radiation will affect the snowpack.

Avalanche Summary

On Tuesday, avalanche control work conducted south of Hope produced a few small (size 1-1.5) loose dry and slab avalanches with good propagation but not running fast or very far.

If you are heading into the backcountry, consider sharing your observations and posting a MIN.

Snowpack Summary

Up to 35 cm of new has fallen over the past week. As temperature warmed, this new snow has settled and bonded with 50 cm of snow that is above a widespread, thick and hard crust that exists everywhere except the highest alpine terrain.

Steep south facing slopes may be crusty or moist depending on time of day and sun exposure.

The lower snowpack is generally strong and bonded.

Weather Summary

Friday Night
Mostly cloudy. 30 km/h southwest ridgetop wind. Treeline temperature -3 °C. Freezing level 1300 m.

Saturday
Mix of sun and clouds. 20 km/h west ridgetop wind. Treeline temperature -1 °C. Freezing level 1600 m.

Sunday
Mostly sunny. 20 km/h west ridgetop wind. Treeline temperature 5 °C. Freezing level 2600 m.

Monday
Mostly sunny. 30 km/h southwest ridgetop wind. Treeline temperature 6 °C. Freezing level 2700 m.

Warming weather will change the game, click this link for great terrain and travel advice.

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.
  • Avoid terrain traps such as gullies and cliffs where the consequence of any avalanche could be serious.
  • Avoid steep, sun-exposed slopes when the air temperature is warm or when solar radiation is strong.

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.

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.