Avalanche Forecast

Issued: Nov 5th, 2022 4:00PM

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

Avalanche Canada KR, Avalanche Canada

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Moderate your storm stoke! Early season hazards such as rocks and snaggy trees are plentiful below treeline, and lurk just below the surface at treeline and above.

We've reached threshold for avalanches to occur at treeline and above- be sure to assess for instability with the 55+cm of recent storm snow!

Summary

Confidence

Moderate

Avalanche Summary

Several avalanches were observed today in the highway corridor from very steep terrain in the alpine (Mt Macdonald and Tupper). These avalanches were large enough to bury, injure or kill a rider and ran down into below treeline elevations.

Snowpack Summary

Rogers Pass received ~35cm of new snow in the last 24 hours! This brings our height of snow up to 1-1.2m at treeline elevations. Moderate to strong SW'ly winds have been redistributing the new low density snow, which may leave some areas scoured and other areas in lees building slabs. Below treeline remains below threshold for avalanches with 50cm on the ground at Rogers Pass (1300m).

Weather Summary

The warm, stormy period will come to an end as an artic ridge of high pressure moves into the southern half of the province. Expect an alpine high of -13°C with moderate east winds.

Monday

Bundle up! The arctic ridge will be firmly in place by Monday with temperatures hovering around -20°C with moderate east winds. This ridge looks like it's here to stay into the foreseeable future this week.

Terrain and Travel Advice

  • Make conservative terrain choices and avoid overhead hazard.
  • Watch for signs of instability like whumpfing, hollow sounds, shooting cracks or recent avalanches.

Problems

Storm Slabs

An icon showing Storm Slabs

Moderate to strong southerly winds have been redistributing the 55+cm of recent storm snow into reactive slabs.

Aspects: All aspects.

Elevations: Alpine.

Likelihood

Possible - Likely

Expected Size

1 - 2

Valid until: Nov 6th, 2022 4:00PM