Avalanche Forecast

Issued: Dec 5th, 2016 4:00PM

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

garth lemke, Parks Canada

Jasper.

Arctic air has arrived. Stay warm.

Summary

Weather Forecast

Tuesday and Wednesday will be -18 to -30, sunny, light NE to NW winds, and no precipitation. Thursday will be mixed cloud and -20 with light flurries in the evening into Friday.Â

Snowpack Summary

On Saturday night we received 10-20cm new snow with ridge-top snow transport and cross loading on Sunday. Winds have shifted light Northerly. Wind slabs 50+cm on some open features at TL and above. Nov 12 crust is exposed in open Alpine features on the windward side and down 40 to 70cms or more in the lee. Temperature gradient promoting facetting.

Avalanche Summary

No patrol Monday. Sunday's Icefield's patrol observed several loose dry activity on solar aspects. 2300 to alpine small windslabs 24-48 hrs old.

Confidence

The weather pattern is stable

Problems

Wind Slabs

This condition would be found mainly on open lee slopes or cross-loaded gullies. Avoid traveling through or underneath these features.

Avoid travelling in areas that have been reverse loaded by winds.Avoid steep lee and cross-loaded slopes

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

Elevations: Alpine, Treeline.

Likelihood

Possible

Expected Size

1 - 3

Valid until: Dec 6th, 2016 4:00PM