Archived

Avalanche Forecast

Apr 4th, 2019–Apr 5th, 2019

Alpine

1: Low

The avalanche danger rating in the alpine will be low

Treeline

1: Low

The avalanche danger rating at treeline will be low

Below Treeline

1: Low

The avalanche danger rating below treeline will be low

Alpine

1: Low

The avalanche danger rating in the alpine will be low

Treeline

1: Low

The avalanche danger rating at treeline will be low

Below Treeline

1: Low

The avalanche danger rating below treeline will be low

Alpine

1: Low

The avalanche danger rating in the alpine will be low

Treeline

1: Low

The avalanche danger rating at treeline will be low

Below Treeline

1: Low

The avalanche danger rating below treeline will be low

Regions: Northwest Inland.

Minimize exposure to steep slopes as temperatures warm through the day, especially in areas with fresh snow.

Confidence

Moderate - Intensity of incoming weather systems is uncertain

Weather Forecast

THURSDAY NIGHT- Cloudy with isolated flurries, up to 5 cm / south wind, 20-45 km/h / alpine low temperature -2 C / freezing level 1300 m FRIDAY - Scattered flurries, 5 cm accumulation / southeast wind, 20-35 km/h / alpine high temperature +1 C / freezing level 1700 mSATURDAY - Sun, cloud, and isolated flurries / south wind, 30 gusting to 65 km/h / alpine high temperature 0 C / freezing level 1400 mSUNDAY - Cloudy with sunny periods and isolated flurries, up to 5 cm accumulation / south wind 20 gusting to 75 km/h / alpine high temperature -1 C / freezing level 1400 m

Avalanche Summary

There have been no recent avalanche observations in the forecast region.

Snowpack Summary

Sun exposed slopes in the alpine and all aspects at treeline and below have become moist to wet during the heat of the day. In these areas, spring conditions are in effect; the avalanche hazard will fluctuate greatly depending on the strength of the overnight freeze and how quickly the snowpack is warmed up each day. Dry snow may still be found on north-facing slopes in the alpine. At these locations, 30-50 cm of well settled snow overlies a layer of facets (sugary snow) that was buried around March 10th.

Avalanche Problems

Loose Wet

As temperatures rise and the snowpack warms during the day, the likelihood of loose wet avalanches will increase, especially in areas with fresh snow.

Cornices become weak with daytime heating, travel early on exposed slopes.Avoid sun exposed slopes when the solar radiation is strong, especially if the snow is moist or wet.Avoid terrain traps such as cliffs and gullies that increase the consequence of small avalanches.

Aspects: East, South East, South, South West, West.

Elevations: All elevations.

Likelihood: Possible

Expected Size: 1 - 1.5