Avalanche Forecast
Northwest Inland
Forecast new snow and strong winds will form small wind slabs in leeward areas near ridge crests and on convex features which may be reactive to human triggers.
Avalanche Problem 1: Wind Slabs
What Elevation?
Which Slopes?
Chances of Avalanches?
Expected Size?
Travel and Terrain Advice
- Use ridges or ribs to avoid pockets of wind loaded snow.
- Give cornices a wide berth when travelling on or below ridges.
- Be cautious as you transition into wind affected terrain.
Avalanche Summary
No new avalanches were reported in this region on Tuesday. However, I would expect the incoming storm on Thursday to form fresh wind slabs reactive to human triggers in wind affected terrain at treeline and above.
Snowpack Summary
Forecast new snow and strong winds are expected to create touchy wind slabs in wind affected terrain at treeline and above.
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.
Weather Forecast
THURSDAY: Snow; accumulation 5-10 cm. Moderate to strong southwest wind. Alpine temperature -2. Freezing level 1200 m.
FRIDAY: Cloudy with flurries; accumulation 3-5 cm. Moderate south wind. Alpine temperature -2. Freezing level 1200 m.
SATURDAY: Mix of sun and cloud with flurries. Light west wind. Alpine temperature -3. Freezing level 1100 m.
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Forecast new snow and strong winds are expected to create small wind slabs on lee features at treeline and above.