Avalanche Bulletin - Waterton Lakes National Park - Mon May 29, 2017

Issued: Wed Apr 26, 2017 17:00
Valid Until: further notice

Regular bulletins are finished for the season; however, a thick snowpack means avalanche hazard will remain throughout Spring in many areas. For further information, please see the "More Spring Conditions details" link, and the Forecast Details tab. [RM]

Public Avalanche Forecast
Spring Conditions:  Wednesday
Spring Conditions

The avalanche danger is variable and can range from Low to High. Travelling early in the day is recommended, as conditions can change rapidly in short periods of time due to daytime warming. Pay careful attention to the integrity of surface crusts formed overnight and rising air temperatures during the day. Dry slab avalanche danger may also exist during spring snow storms.

More Spring Conditions details.

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

Weather station data is available here: http://agriculture.alberta.ca/acis/alberta-weather-data-viewer.jsp

Akamina Pass, Goat Haunt, & Waterton Red Rock are most useful.

Avalanche Canada produces a broad-scale Mountain Weather Forecast: http://www.avalanche.ca/weather

SPOTWX (http://spotwx.com) is a resource for weather forecasts at a local scale.

Snowpack Discussion

The Spring snowpack is well above average.  Avalanche risk will remain on many trails until Summer.  Avalanche Canada has defined four common spring scenarios, here: http://www.avalanche.ca/blogs/spring-strategy-2017. It's up to you to decide which of the scenarios applies to your situation. Each requires a different risk management approach.

Avalanche Activity Discussion

For More Details

Emergency: 911
Forecasters: (403) 859-5140

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