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Archived

Avalanche Forecast

Dec 12th, 2017–Dec 13th, 2017
Alpine
1: Low
The avalanche danger rating in the alpine will be low
Treeline
1: Low
The avalanche danger rating at treeline will be low
Below Treeline
1: Low
The avalanche danger rating below treeline will be low
Alpine
1: Low
The avalanche danger rating in the alpine will be low
Treeline
1: Low
The avalanche danger rating at treeline will be low
Below Treeline
1: Low
The avalanche danger rating below treeline will be low
Alpine
1: Low
The avalanche danger rating in the alpine will be low
Treeline
1: Low
The avalanche danger rating at treeline will be low
Below Treeline
1: Low
The avalanche danger rating below treeline will be low

Regions: Banff Yoho Kootenay.

Good travel conditions, but the snowpack is still thin, so lots of early season hazards and thin spots exist. Check our weather stations to get current alpine temperatures as the alpine has been warmer than the valley bottoms lately.

Weather Forecast

The high pressure ridge will dominate the region until at least Thursday. Temperatures will remain inverted with above freezing temperatures in the alpine and cooler temperatures at the valley bottoms.  On Friday, the ridge starts to break down and we should see increasing west winds, seasonal temperatures and maybe even some light precip!

Snowpack Summary

Surface hoar is growing in sheltered locations at tree-line. Sun crusts, surface faceting and wind effect exist on various aspects in the alpine. 15-40 cm of snow lies over the Nov 27th and Nov 23rd crusts. Both of these now overly the Halloween crust/facet layer that sits 30-50cm above the ground.

Avalanche Summary

Despite the inversion creating warm temperatures in the alpine, only a few very small loose wet avalanches in the alpine have been observed over the last few days. These were in steep rocky terrain that was in the sun, and sheltered from the wind. Where observed, these did not trigger larger avalanches.

Confidence

Due to the number of field observations