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Avalanche Forecast

Archived

Apr 16th, 2024–Apr 17th, 2024

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

Regions

North Columbia, South Columbia, Glacier, Esplanade, Jordan, North Selkirk, Shuswap, Dogtooth, West Purcell, Badshot-Battle, Central Selkirk, Goat, Gold, North Okanagan.

New snow may still need time to bond to the underlying crust.

Natural avalanche activity will increase with daytime warming and sun affect.

Confidence

Moderate

Avalanche Summary

No new avalanches have been reported since the weekend.

Natural avalanche activity will increase on Wednesday as the sun affects the new snow.

Snowpack Summary

Roughly 10 to 30 cm of new snow has buried a widespread melt-freeze crust, existing on all but north-facing, alpine terrain.

A series of variable melt-freeze crusts exist in the upper snowpack.

The lower snowpack is generally well-bonded and strong.

Weather Summary

Tuesday Night

Mostly cloudy with 0 to 5 cm of snow. 10 to 30 km/h north ridgetop wind. Treeline temperature -8 °C. Freezing level drops to valley bottoms overnight.

Wednesday

Mostly sunny with cloud building in the afternoon. 0 to 20 km/h northeast ridgetop wind. Treeline temperature -5 °C. Freezing level 1500 m.

Thursday

Mostly sunny. 0 to 20 km/h northeast ridgetop wind. Treeline temperature -5 °C. Freezing level 1500 m.

Friday

Sunny. 0 to 20 km/h northeast ridgetop wind. Treeline temperature -5 °C. Freezing level 1500 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Closely monitor how the new snow is bonding to the crust.
  • Be alert to conditions that change with elevation and sun exposure.
  • Brief periods of sun could quickly initiate natural avalanche activity.

Problems

Storm Slabs

Storm Slab avalanches are the release of a cohesive layer (a slab) of new snow that breaks within new snow or on the old snow surface. Storm-slabs typically last between a few hours and few days (following snowfall). Storm-slabs that form over a persistent weak layer (surface hoar, depth hoar, or near-surface facets) may be termed Persistent Slabs or may develop into Persistent Slabs.