Avalanche Forecast

Issued: Apr 6th, 2019 3:00PM

The alpine rating is considerable, the treeline rating is considerable, and the below treeline rating is moderate. Known problems include Storm Slabs and Loose Wet.

mconlan, Avalanche Canada

South Coast.

Forecast precipitation amounts are variable between weather models. Should you find more than 30 cm of accumulated snow, treat the danger as HIGH. Also watch the sky: expect loose wet avalanches under sunny conditions.

Summary

Confidence

Moderate -

Weather Forecast

SATURDAY NIGHT: Cloudy with snowfall above 1300 m and rain below, accumulation 10 to 20 cm of snow, moderate to strong southwest wind, treeline temperature -1 C.SUNDAY: Mix of sun and cloud, light to moderate west wind, treeline temperature 0 C, freezing level 1500 m.MONDAY: Mix of sun and cloud, light south wind, treeline temperature 0 C, freezing level 1500 m.TUESDAY: Cloudy with snowfall above 1400 m and rain below, accumulation 15 cm of snow, light to moderate southwest wind, treeline temperature -1 C.

Avalanche Summary

No new avalanches have been reported in the region. The likelihood of triggering avalanches is increased above the snow-rain line due to stormy conditions this weekend and the potential for loose wet avalanches if the sun shines.

Snowpack Summary

Precipitation amounts have totaled 80 to 100 mm in the past three days. This has likely all fallen as snow above around 1700 m and all as rain below 1200 m. Between 1200 m and 1700 m, expect a rapid change from 0 cm to 80 cm of recent snowfall. The snow has likely been blown around by strong south wind. Below 1200 m, the snowpack is rapidly melting.

Problems

Storm Slabs

Substantial snowfall has accumulated above around 1300 m, likely producing touchy storm slabs. The snow fell with strong southwest wind, so expect to find the deepest and most reactive deposits in lee terrain features.

Travel conservatively above the recent rain-snow line (around 1300 m).Minimize exposure to overhead avalanche terrain, as large avalanches may travel far.Be careful with wind-loaded pockets, especially near ridge crests and roll-overs.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood

Likely

Expected Size

1 - 2.5

Loose Wet

The recent snow will moisten quickly on southerly aspects when the clouds clear. Loose wet avalanches can grow in danger quickly, so use added caution when the sun is out.

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

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

Elevations: All elevations.

Likelihood

Possible - Likely

Expected Size

1 - 2

Valid until: Apr 7th, 2019 2:00PM