Dashboard Regions Weather Stations Radar Alerts Glossary
Contact About
Log In

Register for an account and never miss a forecast again!

Register

Avalanche Forecast

Archived

Apr 9th, 2023–Apr 10th, 2023

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

Regions

Coquihalla, Harrison-Fraser, Manning, Skagit.

Continually assess conditions as you gain elevation. Larger and more reactive storm slabs will be found at higher elevations.

Avoid lee and cross loaded slopes.

Confidence

Moderate

Avalanche Summary

Wet loose avalanches up to size 2 have been observed on an ongoing basis for the past few days. We expect this type of avalanche activity to taper off as freezing levels fall.

We suspect that rider triggerable storm and wind slab will be found at treeline and above.

Snowpack Summary

Recent storm snow with southerly winds has likely formed wind slab on west through east aspects at upper elevations. As the freezing level falls a new crust will form on all aspects at treeline and below.

A crust from late March can be found down 50 to 80 cm on all solar aspects and at treeline and below on north facing terrain. Below this crust the snowpack is generally well settled.

Weather Summary

Sunday Night

Stormy with up to 10 cm of new snow expected. Moderate to strong southerly winds and a low of -7°C at 1800 m.

Monday

Mostly cloudy with flurries bringing up to 5 cm of new snow. Moderate southerly winds and a high of -3°C at 1800 m.

Tuesday

Mostly cloudy with 5 to 10 cm of new snow possible. Light to moderate southwest winds and a high of -3°C at 1800 m.

Wednesday

Mostly cloudy with the possibility of light flurries bringing trace amounts of new snow. Light westerly winds and a high of -4°C at 1800 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Continue to make conservative terrain choices while the storm snow settles and stabilizes.
  • Be especially cautious as you transition into wind affected terrain.
  • Avoid lee and cross-loaded terrain.

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.