Archived

Avalanche Forecast

Apr 11th, 2019–Apr 12th, 2019

Alpine

2: Moderate

The avalanche danger rating in the alpine will be moderate

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

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

2: Moderate

The avalanche danger rating below treeline will be moderate

Alpine

2: Moderate

The avalanche danger rating in the alpine will be moderate

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.

Expect small loose wet avalanches to occur shortly after the sun comes out and warms the new snow.

Confidence

High -

Weather Forecast

THURSDAY NIGHT: Cloudy / Light, northeasterly winds / Alpine low 2 C / Freezing level 1400 m.FRIDAY: Mix of sun and cloud / Light, northwesterly winds / Alpine high 4 C / Freezing level 1500 m.SATURDAY: Snow; 15-25 cm. / Moderate, southwesterly winds / Alpine high 0 C / Freezing level 1100 m.SUNDAY: Mostly cloudy / Light, westerly winds / Alpine high 0 C / Freezing level 1000 m.

Avalanche Summary

No new avalanches have been reported in the region. With spring conditions, the avalanche hazard will fluctuate greatly depending on the strength of the overnight freeze and how quickly the snowpack is warmed up each day, especially in areas with fresh snow.

Snowpack Summary

10-15 mm. of precipitation on Wednesday fell as moist snow at treeline and rain below which sits on a melt freeze crust. Warm temperatures and wet precipitation are producing a moist, spring snowpack. Below 1200 m, the snowpack is rapidly disappearing. With spring conditions, the avalanche hazard will fluctuate greatly depending on the strength of the overnight freeze and how quickly the snowpack is warmed up each day.

Avalanche Problems

Loose Wet

Wet flurries, rain and rising temperatures can all warm the snowpack and increase the likelihood for loose wet avalanches, especially in areas with fresh snow.

Use extra caution on slopes if the snow is moist or wet.Minimize exposure to steep, sun-exposed slopes when the solar radiation is strong.

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

Elevations: All elevations.

Likelihood: Possible

Expected Size: 1 - 1.5

Storm Slabs

Use caution around ridge crests and lee terrain features, where deposits will be most reactive.

Be careful with wind loaded pockets, especially near ridge crests and roll-overs.Minimize overhead exposure during periods of heavy loading from new snow and wind.Pay attention to overhead hazards like cornices.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 1 - 1.5