Avalanche Forecast

Issued: Nov 10th, 2019 4:00PM

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

Parks Canada Jasper Snow Safety, Parks Canada

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Early season conditions persist.  Minimal coverage at Treeline and Below

Summary

Weather Forecast

A mix of sun and cloud for the next few days.

Mon high -7.  Light ridge winds west . Precip. Nil

Tues high -2. Low -8.  Light ridge winds west.  Precip Trace

A detailed forecast can be found from Avalanche Canada's, Mountain Weather Forecast.

Snowpack Summary

New rain crust to 2400m. 5-10 cm recent storm snow sits above this new Nov crust. Total snow pack height in alpine 45-85 cm. Snowpack sits atop a weak basal crust from Oct 07.

Avalanche Summary

From Friday: Natural avalanche cycle up to size 2 were mostly loose point release on all aspects at treeline. They remain relatively small. One slab release size 2 on Parker Slabs from steep deposition zone showed good propagation likely on the basal crust. Visibility was limited. No new avalanches observed Sunday

Confidence

Due to the number of field observations

Problems

Wind Slabs

An icon showing Wind Slabs

There are variable wind slabs throughout the region. Be extremely cautious in terrain traps where even a small slide could have dangerous consequences. Higher Consequence above 2400m due to lack of new rain crust.

  • Be careful with wind loaded pockets, especially near ridge crests and roll-overs.
  • Use caution in lee and cross-loaded areas. Recent wind loading has created new wind slabs.

Aspects: All aspects.

Elevations: Alpine.

Likelihood

Unlikely - Possible

Expected Size

1 - 2

Loose Dry

An icon showing Loose Dry

Potential sluff issue in very steep terrain. Upper alpine. Climbers!

Aspects: All aspects.

Elevations: Alpine.

Likelihood

Possible

Expected Size

1 - 2

Valid until: Nov 11th, 2019 4:00PM