Avalanche Forecast Waterton Lakes National Park

Date Issued: Valid Until:

Parks Canada adam greenberg, Parks Canada

Avalanche Forecast

Thu Apr. 11th ยท 4:00PM

Alpine

Danger Ratings Below Threshold

Treeline

Danger Ratings Below Threshold

Below Treeline

Danger Ratings Below Threshold
Loose Wet Loose Wet
Wind Slabs Wind Slabs

Alpine

Danger Ratings Below Threshold

Treeline

Danger Ratings Below Threshold

Below Treeline

Danger Ratings Below Threshold

Alpine

Danger Ratings Below Threshold

Treeline

Danger Ratings Below Threshold

Below Treeline

Danger Ratings Below Threshold
Incoming precipitation will increase the hazard where it falls as rain down low, and where it will form new windslabs up high.

Weather Forecast

Friday: Cloudy with sunny periods and isolated showers/flurries with a 1900m freezing level and light winds.Saturday: Showers with flurries up high, up to 10cm of new snow above treeline. Freezing level 1800m with SW winds gusting to 85km/hSunday: Cloudy with sunny periods and light gusting strong SW winds. Freezing level 1600m.

Snowpack Summary

In most areas we are seeing a typical spring snowpack with crusts breaking down in the heat of the day. If you can get above snowline, expect to see 5cm of new, wet snow on Friday and 10cm on Saturday falling as rain at lower elevations. The midpack is generally moist and well settled.

Avalanche Summary

No new recent avalanches observed.

Confidence

Problems

Loose Wet

Loose Wet

Rain on Saturday may trigger loose avalanches below treeline where snow remains.

Avoid terrain traps, such as gullies, where the consequences of a small avalanche could be serious.

Aspects: All aspects.

Elevations: Below Treeline.

Likelihood

Possible

Expected Size

1 - 1.5
Wind Slabs

Wind Slabs

Strong winds and snowfall above treeline on Friday and Saturday will form new windslabs. These will become more reactive if the sun comes out.

Be careful with wind loaded pockets, especially near ridge crests and roll-overs.

Aspects: North, North East, East, South East.

Elevations: Alpine, Treeline.

Likelihood

Possible - Unlikely

Expected Size

1 - 2