Archived

Avalanche Forecast

Mar 27th, 2018–Mar 28th, 2018

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

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

Regions: Glacier.

Expect to find touchy storm slab, minimize time spent in areas exposed to overhead hazard. Avalanches have the potential to run into valley bottoms.Strong winds and snowfall will persist for the day.

Weather Forecast

For all the mountain bikers and rock climbers out there, winter isn't over yet so keep your Gore-tex out! A pacific storm will deliver another 10-15cm of snow today with westerly 30-70km/hr winds. Freezing level will rise to 1700m with an alpine high of -4. Wednesday will see sun and cloud and cooler temps but the snow will return on Thursday.

Snowpack Summary

Moderate to strong southerly winds have redistributed the 20cm of new snow in the past 24hrs forming a fresh storm slab. Cool temps have kept the near surface crust below tree line intact. Watch for a buried crust on steep solar aspects and isolated patches of surface hoar, both down 30-45cm.

Avalanche Summary

A natural cycle will occur today as forecasted snow and strong winds will continue into the evening.Skier triggered sz 2 wind slab yesterday afternoon on a steep NE aspect, no involvement, read the report here. A sz 2 skier accidental occurred Saturday midday on a westerly aspect on a cross loaded feature. It ran for 350m and injured the skier.

Confidence

Avalanche Problems

Storm Slabs

20cm new snow with Southerly winds gusting to 80 km/hr has formed a storm slab. Another 10cm is forecast today with sustained winds building windslab in lee features. Pay attention on solar aspects where near surface crusts act as a good bed surface

Minimize overhead exposure during periods of heavy loading from new snow, wind.Use caution in lee areas. Recent wind loading have created wind slabs.

Aspects: All aspects.

Elevations: All elevations.

Likelihood: Likely - Very Likely

Expected Size: 1 - 3