Avalanche Bulletin - Waterton Lakes National Park - Tue Oct 17, 2017

Issued: Fri Jun 16, 2017 11:08
Valid Until: further notice

We have slowly transitioned to a summer snowpack.  Many trails will hold snow later than usual. Trail report: http://www.pc.gc.ca/apps/tcond/index_e.asp . Avalanches are generally unlikely, but are possible at times - see the "Forecast details" tab. [RM]

Public Avalanche Forecast
Summer Conditions:  Friday
Summer Conditions

Information regarding summer mountain conditions can be found on the Mountain Conditions Report, published by the Association of Canadian Mountain Guides.

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
  • 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.
  • 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.
  • 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.
  • 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.
  • Avoid all avalanche terrain.
  • Natural and human-triggered avalanches certain.
  • Large to very large avalanches in many areas.
Forecast Details

Weather Forecast

Snowpack Discussion

Snowpack depths are deeper than normal for early Summer, due to a heavy snowfall winter and sustained cool temperatures through mid Spring. Expect trails to hold snow for weeks longer than usual, particularly higher elevation trails in Southern and Western areas.  Currently (Mid June), seasonal snow still exists below treeline in Western areas.

Avalanche Activity Discussion

Avalanches are less common in Summer, but remain possible at times.  Avoid areas with tell-tale "Glide cracks" (wide cracks through the snowpack to the ground).  Avalanches are most likely to occur during (or within 24 hours of) snowfall or heavy rain.Be aware of slipping potential on hard snow - boots, ice axes, and/or crampons may be necessary.

For More Details

Emergency: 911
Forecasters: (403) 859-5140


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