Avalanche Bulletin - Waterton Lakes National Park - Sat Oct 24, 2020

Issued: Sun Oct 18, 2020 10:27
Valid Until: further notice

Winter is beginning in the high country, bringing with it the potential for avalanches. The bulletin will be updated as conditions change, and twice weekly avalanche bulletins will begin December 3. [GS]

Public Avalanche Forecast
Early Season Conditions:  Sunday
Early Season Conditions

Insufficient observations exist to reliably rate the avalanche danger. Expect shallow snow cover with thinly buried rocks and trees just beneath the surface. Avalanche danger often concentrates in gullies and other deposition areas, where windslabs may bond poorly to a weak underlying base. Deeper snow usually exists at higher elevations.

Past 24 hour weather
Station Maximum (°C) Minimum (°C) Snowfall (cm) Snow Pack (cm) Wind speed Ridgetop wind direction
Little Prairie 1650m Not Available Not Available Not Available Not Available Not Available Not Available
Low
  • Generally safe avalanche conditions. Watch for unstable snow on isolated terrain features.
  • Natural and human-triggered avalanches unlikely.
  • Small avalanches in isolated areas or extreme terrain.
Moderate
  • Heightened avalanche conditions on specific terrain features. Evaluate snow and terrain carefully; identify features of concern.
  • Natural avalanches unlikely; human-triggered avalanches possible.
  • Small avalanches in specific areas; or large avalanches in isolated areas.
Considerable
  • Dangerous avalanche conditions. Careful snowpack evaluation, cautious route-finding and conservative decision-making essential.
  • Natural avalanches possible; human-triggered avalanches likely.
  • Small avalanches in many areas; or large avalanches in specific areas; or very large avalanches in isolated areas.
High
  • Very dangerous avalanche conditions. Travel in avalanche terrain not recommended.
  • Natural avalanches likely; human-triggered avalanches very likely.
  • Large avalanches in many areas; or very large avalanches in specific areas.
Extreme
  • Avoid all avalanche terrain.
  • Natural and human-triggered avalanches certain.
  • Large to very large avalanches in many areas.
Forecast Details

Weather Forecast

Regional weather forecast are provided daily by Avalanche Canada

Spot WX is an excellent resource for detailed local forecasts

Snowpack Discussion

Snow is accumulating at upper elevations, and avalanches can occur on the right features. Be especially wary of areas immediately below ridge crests, smooth alpine bowls, and gully features.

Avalanche Activity Discussion

Avalanche activity will increase during and immediately after periods of snow, wind, rain, and/or warming. This is the time of year to start traveling with your avalanche equipment, and brush up on your skills.

For More Details

Emergency: 911
Forecasters: (403) 859-5140

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