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Avalanche Forecast

Apr 11th, 2019–Apr 14th, 2019
Alpine
Below Threshold
The avalanche danger rating in the alpine will be below threshold
Treeline
Below Threshold
The avalanche danger rating at treeline will be below threshold
Below Treeline
Below Threshold
The avalanche danger rating below treeline will be below threshold
Alpine
Below Threshold
The avalanche danger rating in the alpine will be below threshold
Treeline
Below Threshold
The avalanche danger rating at treeline will be below threshold
Below Treeline
Below Threshold
The avalanche danger rating below treeline will be below threshold
Alpine
Below Threshold
The avalanche danger rating in the alpine will be below threshold
Treeline
Below Threshold
The avalanche danger rating at treeline will be below threshold
Below Treeline
Below Threshold
The avalanche danger rating below treeline will be below threshold

Regions: Waterton Lakes.

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

Avalanche Problems

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

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: Unlikely - Possible

Expected Size: 1 - 2