Avalanche Forecast

Archived

Nov 11th, 2025–Nov 13th, 2025

Alpine

Natural avalanches unlikely, human triggered possible.

Treeline

Early Season

Below Treeline

Early Season

Alpine

Natural avalanches possible, human triggered probable.

Treeline

Natural avalanches unlikely, human triggered possible.

Below Treeline

Early Season

Alpine

Natural avalanches possible, human triggered probable.

Treeline

Natural avalanches unlikely, human triggered possible.

Below Treeline

Early Season

Regions

Jasper, Brazeau, Churchill, Cirrus-Wilson, Fryatt, Icefields, Maligne, Marmot, Miette Lake, Pyramid.

Extreme winds have scoured snow from many areas and deposited it in gullies and lee features, creating wind slabs. Early-season hazards remain just below the surface.

New snow and wind Thursday will form a storm slab, watch for rapidly changing conditions.

Confidence

Moderate

Avalanche Summary

A few small loose dry avalanches were observed in the Alpine on Saturday.

Snowpack Summary

How to navigate Early Season Conditions

Our field team ventured out to Hilda Ridge on Saturday and found generally supportive travel. Early season hazards exist with snow just covering rocks & trees.

Treeline has 30-55cm of snow. Recent extreme winds have scoured much of the alpine and deposited snow into gullies and lee features making for great variability in snow depth. Alpine bowls & steep gullies are classic spots for early season avalanches.

Weather Summary

Winds in the alpine will remain strong but have tapered off from the extreme winds that occurred on Monday. The Icefields is expecting light amounts of precipitation early in the week, then 15-30 cm of snow Thursday and into Friday, with potentially up to 50cm total. Freezing levels will rise in the storm anywhere from 2200-2500m.

For updated forecasts go to Jasper National Park Forecast.

Terrain and Travel Advice

Be careful as you transition into wind-affected terrain.
Watch for rapidly changing conditions during periods of heavy loading from new snow, wind, or rain.

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.