Dashboard Regions Weather Stations Radar Alerts Glossary
Contact About
Log In

Register for an account and never miss a forecast again!

Register

Avalanche Forecast

Archived

Dec 29th, 2015–Dec 30th, 2015

Alpine
Natural avalanches unlikely.
Treeline
Natural avalanches unlikely.
Below Treeline
Natural avalanches unlikely.
Alpine
Natural avalanches unlikely.
Treeline
Natural avalanches unlikely.
Below Treeline
Natural avalanches unlikely.
Alpine
Natural avalanches unlikely.
Treeline
Natural avalanches unlikely.
Below Treeline
Natural avalanches unlikely.

Regions

Jasper.

Low does not  mean no avalanches. Keep digging and avoid terrain below large triggers like cornices. Ice climbers be wary of brittle daggers during this cold snap.

Weather Forecast

High pressure and connected ridge will muscle it's way into region and stay put for the foreseeable future. Winds are forecasted to be light to moderate from the north. Which means no new snow but, with the seasonal temps and sunshine, south aspects will be glorious riding and north aspects will stay nice, dry and cool.

Snowpack Summary

Supportive and well settled snowpack above 1700m. Thin wind slabs in the alpine on the lee side of wind exposed terrain. Snowpack continues to facet with recent cold temperatures losing some overall depth as it drys and settles. The base of the snowpack is weakening from the cold but thus far the mid-pack is still bridging this growing weakness.

Avalanche Summary

No new avalanches reported or observed.

Confidence

Problems

Wind Slabs

Wind Slab avalanches are the release of a cohesive layer of snow (a slab) formed by the wind. Wind typically transports snow from the upwind sides of terrain features and deposits snow on the downwind side. Wind slabs are often smooth and rounded and sometimes sound hollow, and can range from soft to hard. Wind slabs that form over a persistent weak layer (surface hoar, depth hoar, or near-surface facets) may be termed Persistent Slabs or may develop into Persistent Slabs.

Persistent Slabs

Persistent Slab avalanches are the release of a cohesive layer of snow (a slab) in the middle to upper snowpack, when the bond to an underlying persistent weak layer breaks. Persistent layers include: surface hoar, depth hoar, near-surface facets, or faceted snow. Persistent weak layers can continue to produce avalanches for days, weeks or even months, making them especially dangerous and tricky. As additional snow and wind events build a thicker slab on top of the persistent weak layer, this avalanche problem may develop into a Deep Persistent Slab.