Avalanche Forecast

Issued: Mar 27th, 2021 1:52PM

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

Marcus Waring,

Email

10-20cm of new snow is expected Sunday / Monday with strong to extreme winds. Pay attention to the rapidly changing conditions if you choose to brave the weather.

Summary

Weather Forecast

Sun: Periods of wet snow mixed with rain in the townsite. 10-15 cm snowfall at Cameron Lake.  Alpine high of +4 with freezing level at 1800m. Moderate SW wind with extreme gusts up to 120km/h

Mon: Mainly cloudy with scattered flurries. 2-5cm of snow with freezing level at valley bottom. Moderate SW wind with strong gusts

Tues: A mix of sun and cloud

Snowpack Summary

10-20cm of new snow is expected on Sunday with strong- extreme SW wind. This will create fresh wind slabs over a variety of old surfaces including a thick crust that exists to ridgetop (except on high N aspects) or old wind slab on N-E alpine slopes. Mid snowpack is well consolidated with the lower half composed of dense facets & decomposing crusts

Avalanche Summary

No recent avalanche activity reported.

Confidence

Intensity of incoming weather systems is uncertain on Sunday

Problems

Wind Slabs

An icon showing Wind Slabs

Fresh wind slabs will be most reactive during the storm on Sunday / Monday. Periods of intense wind transport may cause wind slabs to form low in start zones.

  • Use caution in lee areas. New snowfall mixed with wind loading is creating Wind Slabs.

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

Elevations: Alpine, Treeline.

Likelihood

Possible - Likely

Expected Size

1 - 2

Loose Wet

An icon showing Loose Wet

This problem is specific to lower elevations on Sunday as rainfall will stress the snowpack below freezing level. Be mindful of your overhead hazard and avoid travel through large avalanche paths.

  • Use extra caution on solar slopes or if the snow is moist or wet.

Aspects: All aspects.

Elevations: Below Treeline.

Likelihood

Possible

Expected Size

1 - 2.5

Valid until: Mar 30th, 2021 4:00PM