Avalanche Forecast

Issued: Nov 25th, 2018 4:00PM

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

jasper snow safety, Parks Canada

Jasper.

Snowfall amounts for Monday afternoon into Tuesday are uncertain but may be enough to increase the danger rating.

Summary

Weather Forecast

Monday will be flurries yet models are not agreeing on the snow amounts with predictions of 0-12cm. Alpine temperatures will be -4 C and increasing SW winds. Click here for the Avalanche Canada mountain weather forecast.

Snowpack Summary

10-15cm of low density snow sits over a firm mid pack consisting mainly of facets. The primary layer of concern continues to be the October 25 crust 0-40cm off the ground. This crust is most prevalent in deeper snowpack areas predominately on N-NE lee features. Faceting above and below this layer continue to weaken the lower snowpack.

Avalanche Summary

No patrol Sunday and nothing new reported. Saturday's Hy 93 patrol reported no new avalanche activity. No natural activity has been observed in the last 5 days.

Confidence

Forecast snowfall amounts are uncertain on Tuesday

Problems

Deep Persistent Slabs

Assume all skiable slopes have this crust, and assess the strength of the interface before jumping into any committing lines. See forecast details for more info on this layer.

Watch for whumpfing, hollow sounds, and shooting cracks.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood

Unlikely - Possible

Expected Size

1 - 2.5

Valid until: Nov 26th, 2018 4:00PM