Avalanche Forecast

Issued: Apr 5th, 2019 3:00PM

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

kdevine, Avalanche Canada

Cariboos.

New snow and wind will mean that storm slabs are likely to be encountered, and may be reactive to human triggering, especially in wind loaded areas.

Summary

Confidence

Moderate - Timing, track, or intensity of incoming weather system is uncertain

Weather Forecast

FRIDAY NIGHT - Flurries, 5-10 cm / southerly winds, 30-60 km/h / alpine low temperature near -6SATURDAY - A mix of sun and cloud with isolated flurries / south winds, 30-60 km/h / alpine high temperature near -3 / freezing level 1700 mSUNDAY - Mainly cloudy with isolated flurries / southeast winds, 20-40 km/h / alpine high temperature near -4 / freezing level 1700 mMONDAY - Cloudy with sunny periods and isolated flurries / southwest winds, 20-40 km/h / alpine high temperature near -1 / freezing level 1700 m

Avalanche Summary

It is likely that storm slabs will be reactive to human triggering at upper elevations.On Thursday, there were reports of a few human triggered size 1 loose wet avalanches at treeline within the new snow.There has been three cornice failures observed in the region since Monday. One triggered a large avalanche that scrubbed down to the base of the snowpack, one triggered a thin slab avalanche and one did not trigger a slab.

Snowpack Summary

15-25 cm of new snow in the alpine and at treeline sits on a melt-freeze crust on all aspects except for north slopes above 1800 m, where it sits on 10 to 30 cm of dry snow and isolated wind slabs. Snow is disappearing rapidly at lower elevations.

Problems

Storm Slabs

Up to 25 cm of recent storm snow sits on a crust in most locations, and on dry snow on north facing alpine terrain. Storm slabs will likely be the most reactive in wind loaded areas.

Be careful with wind loaded pockets, especially near ridge crests and roll-overs.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood

Possible - Likely

Expected Size

1 - 2

Valid until: Apr 6th, 2019 2:00PM