Avalanche Forecast

Issued: Apr 17th, 2018 4:03PM

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

mbender, Avalanche Canada

Northwest Inland.

There is a lack of information to base our avalanche forecasts on this time of year. As a result, this forecast is based solely on weather information. If you have been out recently, post your observations to the Mountain Information Network (MIN).

Summary

Confidence

Low - Due to the number of field observations

Weather Forecast

WEDNESDAY: Cloudy with sunny periods. Light to moderate southwest wind. Alpine temperature -3. Freezing level 1300 m. THURSDAY: Cloudy with isolated flurries. Moderate to strong southwest wind. Alpine temperature -4. Freezing level 1200 m. FRIDAY: Cloudy with sunny breaks and isolated flurries. Moderate south wind. Alpine temperature -2. Freezing level 1400 m.

Avalanche Summary

No recent new avalanches have been reported.

Snowpack Summary

Lingering wind slabs on convex features below ridgetops may still be reactive to human triggers. Weak layers buried around March 19th are roughly 40 cm below the surface (up to 100 cm in deeper snowpack areas). These weak layers include surface hoar on shaded aspects at high elevations and hard crusts on solar aspects and below treeline.Sugary facets may be found near the base of the snowpack in shallow, rocky snowpack areas on shady aspects.

Problems

Wind Slabs

Wind slabs may still be reactive in isolated locations.

Be cautious as you transition into wind affected terrain.Give cornices a wide berth when travelling on or below ridges.Use ridges or ribs to avoid pockets of wind loaded snow.

Aspects: North, North East, East, South East, South.

Elevations: Alpine, Treeline.

Likelihood

Possible

Expected Size

1 - 1.5

Valid until: Apr 18th, 2018 2:00PM