Archived

Avalanche Forecast

Apr 5th, 2019–Apr 6th, 2019

Alpine

4: High

The avalanche danger rating in the alpine will be high

Treeline

4: High

The avalanche danger rating at treeline will be high

Below Treeline

3: Considerable

The avalanche danger rating below treeline will be considerable

Alpine

4: High

The avalanche danger rating in the alpine will be high

Treeline

3: Considerable

The avalanche danger rating at treeline will be considerable

Below Treeline

2: Moderate

The avalanche danger rating below treeline will be moderate

Alpine

3: Considerable

The avalanche danger rating in the alpine will be considerable

Treeline

2: Moderate

The avalanche danger rating at treeline will be moderate

Below Treeline

1: Low

The avalanche danger rating below treeline will be low

Regions: South Coast.

Forecast precipitation amounts are highly variable between weather models. Should you find more than 30 cm of accumulated snow, treat the danger as HIGH. Avoid overhead exposure, as avalanches could run far.

Confidence

Moderate - Intensity of incoming weather systems is uncertain

Weather Forecast

FRIDAY NIGHT: Cloudy with snowfall above 1200 m, accumulation 10 to 40 cm, moderate to strong southwest wind, treeline temperature -1 C.SATURDAY: Cloudy with snowfall above 1200 m, accumulation 10 to 40 cm, strong to extreme south wind, treeline temperature -1 C.SUNDAY: Cloudy with snowfall above 1200 m, accumulation 20 cm, moderate southwest wind, treeline temperature -1 C.MONDAY: Mix of sun and cloud, light southwest wind, treeline temperature 0 C, freezing level 1400 m.

Avalanche Summary

No new avalanches have been reported in the region. The likelihood of triggering avalanches is increased at and above the snow-rain line due to the stormy weather expected this weekend.

Snowpack Summary

Anywhere from 20 to 80 cm of snow is expected to fall Friday night into Saturday. The freezing level will hover between 1100 m and 1400 m. Above the snow-rain line, snow may accumulate quickly and it will be blown around by strong to extreme south to southwest wind. Below the snow-rain line, the snowpack will remain wet and continue to melt rapidly during the storm.

Avalanche Problems

Storm Slabs

Substantial snowfall could accumulate above around 1200 m. The snow will fall with extreme south wind, rapidly loading lee terrain features. The storm will likely produce touchy storm slabs that could release naturally and run far.

Watch for rapidly changing conditions during periods of heavy loading from new snow, wind, or rain.Minimize exposure to overhead avalanche terrain, as large avalanches may travel far.Good day to avoid avalanche terrain above the rain-snow line (approximately 1200 m).

Aspects: All aspects.

Elevations: All elevations.

Likelihood: Very Likely

Expected Size: 1 - 3