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Avalanche Forecast

Archived

Apr 4th, 2025–Apr 5th, 2025

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

Sasquatch, Sasquatch, Coquihalla, Harrison-Fraser, Manning, Skagit.

Cornice and wet loose avalanches are possible in steep terrain.

Use caution on sun-exposed slopes and always practice good travel habits.

Confidence

Low

Avalanche Summary

A few small loose wet avalanches have been observed recently and may continue during periods of warming and sun.

Observations have been very limited recently. If you are out in the mountains this weekend, consider submitting a MIN post.

Snowpack Summary

Dry, settled powder may still be found on high north-facing slopes, while elsewhere, a daily melt-freeze cycle is creating a hard crust overnight that softens during the day.

An old persistent weak layer may still be present 100 to 150 cm below the surface on high north-facing slopes, but it is rounding and unreactive under current conditions.

Treeline elevations still hold over 200 cm of snow, but coverage is rapidly thinning at lower elevations.

Weather Summary

Friday Night

Clear. 10-20 km/h south ridgetop wind. Treeline temperature 0 °C. Freezing level 1600 m.

Saturday

Mostly sunny. 15-25 km/h southwest ridgetop wind. Treeline temperature +5 °C. Freezing level 2400 m.

Sunday

Increasing cloud cover with 1 to 3 mm of rain. 20-30 km/h south ridgetop wind. Treeline temperature +4 °C. Freezing level 2400 m.

Monday

Cloudy with 5 to 10 mm of rain or snow. 20-40 km/h south ridgetop wind. Treeline temperature 0 °C. Freezing level 1800 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Make observations and continually assess conditions as you travel.
  • Limit exposure to steep, sun exposed slopes, especially when the solar radiation is strong.
  • Pay attention to cornices and give them a wide berth when traveling on or below ridges.

Problems

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.

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.