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Avalanche Forecast

Archived

Mar 29th, 2022–Mar 30th, 2022

Alpine
Natural avalanches unlikely.
Treeline
Natural avalanches unlikely.
Below Treeline
Natural avalanches unlikely.
Alpine
Natural avalanches unlikely.
Treeline
Natural avalanches unlikely.
Below Treeline
Natural avalanches unlikely.
Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely.
Below Treeline
Natural avalanches unlikely.

Regions

South Coast.

A firm, supportive, upper snowpack makes avalanches unlikely. Avoid steep slopes if they are loose and slushy, and watch for small windslabs in the high alpine. Bring your crampons and ice axes.

Confidence

High - Confidence is due to a stable weather pattern with little change expected.

Weather Forecast

TUESDAY NIGHT: Cloudy. Light rain/snow expected. Light to moderate southwest ridgetop wind. Freezing level falling to around 900 m. 

WEDNESDAY: Mostly cloudy with some possible sun in the afternoon. Up to 5 cm of snow is possible at high elevations. Light to moderate west ridgetop wind. Freezing level around 1100 m. 

THURSDAY: Mostly sunny. Very light snow/rain expected. Light northwest ridgetop wind. Freezing level around 750 m overnight, rising to 1200 m through the day.  

FRIDAY: Cloudy. Light snow/rain expected. Light to moderate southwest ridgetop wind. Freezing level around 1000 m.

Avalanche Summary

Avalanche activity is expected to be very minimal with falling freezing levels and increasing cloud. 

Several small loose wet avalanches were naturally triggered over the weekend by warm temperatures, short periods of sunshine, and rain. 

If you venture into the mountains, please share any observations on the Mountain Information Network. 

Snowpack Summary

Moist snow or a melt freeze crust likely exist to mountain top. 5cm of new snow may sit on the crust above 1000 m. The crust may break down as temperatures rise, and on south facing slopes if the sun pokes out.

The upper snowpack consists of hard, wind pressed surfaces and a series of crusts. 

The mid and lower snowpack are generally strong and well bonded. 

Terrain and Travel

  • Make observations and assess conditions continually as you travel.
  • When a thick, melt-freeze surface crust is present, avalanche activity is unlikely.
  • Back off slopes as the surface becomes moist or wet with rising temperatures.
  • The more the snow feels like a slurpy, the more likely loose wet avalanches will become.
  • Use caution above cliffs and terrain traps where even small avalanches may have severe consequences.

Problems

Loose Wet

Loose Wet avalanches are the release of wet unconsolidated snow or slush. These avalanches typically occur within layers of wet snow near the surface of the snowpack, but they may quickly gouge into lower snowpack layers. Like Loose Dry Avalanches, they start at a point and entrain snow as they move downhill, forming a fan-shaped avalanche. Other names for loose-wet avalanches include point-release avalanches or sluffs. Loose Wet avalanches can trigger slab avalanches that break into deeper snow layers.