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Archived

Avalanche Forecast

Jan 18th, 2023–Jan 19th, 2023
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
1: Low
The avalanche danger rating below treeline will be low

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

Continue to be mindful of the deep persistent slab problem and make conservative terrain choices. Saturday's forecast of new snow will be welcome but we may see a bump in hazard should more than forecast amounts materialize.

Confidence

Moderate

Avalanche Summary

There were no new avalanches observed on the icefields parkway on Tuesday - no patrol on Wednesday.

If you're out in the hills, don't forget to post to the MIN. Every bit of information helps

Snowpack Summary

5cm of new snow from this past week around Parker Ridge. Upper snowpack comprised of 20-30cm variable density snow sitting on top of the December 17 facet layer. Large facets and depth hoar comprise the bottom portion of the snowpack. Snowpack depths vary from 40-100cm.

Weather Summary

A surface ridge of high pressure will continue to bring mostly clear skies and minimal precipitation over the next couple of days. Thursday will be a mix of sun and cloud with a high of 0C and a low of minus 8C. Winds will be light in the morning picking up to moderate values from the west in the afternoon. Friday will be similar. Saturday a weakening low will bring light precipitation and increasing winds from the southwest.

Detailed weather forecasts from Avalanche Canada: https://avalanche.ca/weather/forecast

Terrain and Travel Advice

  • Make conservative terrain choices and avoid overhead hazard.

Avalanche Problems

Deep Persistent Slabs

The bottom of the snow pack is inherently weak with well developed Facets and Depth Hoar. Avalanches initiating in the upper snowpack are likely to step down to this layer and gain significant mass.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 1.5 - 3.5

Wind Slabs

Winds have increased to moderate values from the southwest likely creating thin wind slab at ridge crest and exposed cross loaded terrain.

Aspects: North, North East, East, North West.

Elevations: Alpine, Treeline.

Likelihood: Possible - Likely

Expected Size: 1 - 2