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Archived

Avalanche Forecast

Mar 23rd, 2016–Mar 24th, 2016
Alpine
2: Moderate
The avalanche danger rating in the alpine will be moderate
Treeline
2: Moderate
The avalanche danger rating at treeline will be moderate
Below Treeline
1: Low
The avalanche danger rating below treeline will be low
Alpine
2: Moderate
The avalanche danger rating in the alpine will be moderate
Treeline
2: Moderate
The avalanche danger rating at treeline will be moderate
Below Treeline
1: Low
The avalanche danger rating below treeline will be low
Alpine
2: Moderate
The avalanche danger rating in the alpine will be moderate
Treeline
2: Moderate
The avalanche danger rating at treeline will be moderate
Below Treeline
2: Moderate
The avalanche danger rating below treeline will be moderate

Regions: Jasper.

Significant warming expected through the weekend. Time to get your head wrapped around the spring cycle. Get out early and back early!

Weather Forecast

Cool overnight temperatures warming to just below zero in the Alpine. Anywhere from 3 to 12cms by tomorrow morning depending on the forecast, my bet is for...4cms. Freezing levels rising to 1500ms should keep the crust intact for the day and improve travel conditions. Moderate and gusty SW winds overnight and through the day Thursday.

Snowpack Summary

Moist surface snow and, where a shallower snowpack exists, isothermal conditions BLT on solar aspects with some recovery overnight. Overall, the snowpack is shallow but there is significant variation through-out the forecasting area. The persistent slab, down 30-70cms has been most active in the surrounding area off the ski hill.

Avalanche Summary

Nothing new to report.

Confidence

Avalanche Problems

Persistent Slabs

This problem is still most concerning and most active in the Whistler/Portal Creek area.
Be aware of thin areas that may propogate to deeper instabilites.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Unlikely - Possible

Expected Size: 2 - 3

Cornices

First indicators of this problem showing up. Easy enough to avoid but, larger slides, triggered in the deep weaknesses can quickly become a significant issue for groups traveling in the valley bottoms or run outs.
Minimize exposure to overhead avalanche terrain, large avalanches may reach run out zones.Avoid slopes when the solar radiation is strong, especially if they have large cornices overhead.

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

Elevations: Alpine.

Likelihood: Unlikely - Possible

Expected Size: 1 - 2