Avalanche Forecast

Issued: Mar 5th, 2023 4:00PM

The alpine rating is moderate, the treeline rating is moderate, and the below treeline rating is low. Known problems include Wind Slabs.

Avalanche Canada trettie, Avalanche Canada

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Continually assess for wind slab as you gain elevation.

Be prepared to back off slopes if the surface gets moist from solar input. This time of year it only takes a short period of strong solar to increase hazard.

Summary

Confidence

Moderate

Avalanche Summary

On Saturday explosives triggered one size one wind slab. No other significant avalanches were observed in the region.

Snowpack Summary

5 to 10 cm of recent snow has been redistributed by northeast winds. This snow sits over a new crust on steep solar slopes and previously wind effected surfaces on other aspects. The snow surface will likely become moist when the sun comes out.

A melt-freeze crust with facets above, sits 50 to 120 cm deep. It has not produced any avalanches in the past couple weeks.

The mid to lower snowpack is considered well bonded at this point. Currently we are not seeing the same basal weak layers and reactivity that many of the neighboring regions are experiencing this season.

Weather Summary

Sunday Night

Cloudy with the possibility of light flurries bringing a few centimeters of new snow. Strong southeast winds easing throughout the night. Low of -19°C at 2000 m.

Monday

A mix of sun and cloud with the possibility of light flurries bringing a few centimeters of new snow. Light southerly winds and a high of -11°C at 2000 m.

Tuesday

Mostly sunny with the possibility of light flurries bringing trace amounts of new snow. Light southeast winds and a high of -8°C at 2000 m.

Wednesday

Mostly cloudy with up to 5 cm of new snow expected. Light southeast winds and a high of -10°C at 2000 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Recent wind has varied in direction so watch for wind slabs on all aspects.
  • Wind slabs may be poorly bonded to the underlying crust.
  • Use ridges or ribs to avoid areas of wind loaded snow.
  • Avoid exposure to steep sun exposed slopes.

Problems

Wind Slabs

An icon showing Wind Slabs

Winds have varied over the past few days meaning wind slab could be found on all aspects. . The most reactive wind slabs could be found on sun exposed slopes where they may have formed over a crust.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood

Possible

Expected Size

1 - 2

Valid until: Mar 6th, 2023 4:00PM

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