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

Dec 23rd, 2018–Dec 24th, 2018

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

Regions

Northwest Inland.

Recent fresh snow has likely been redistributed by strong winds, especially at upper elevations. Wind slabs may be reactive to human triggering, especially in lee terrain.

Confidence

Moderate - Due to the number of field observations.

Weather Forecast

SUNDAY NIGHT - Cloudy with clear periods and isolated flurries / southwest winds, 30-50 km/h / alpine low temperature near -7°c. MONDAY - Cloudy with flurries, up to 5 cm / southwest winds, 20-40 km/h / alpine high temperature near -6°c. TUESDAY - Cloudy with sunny periods and isolated flurries / light west to northwest winds / alpine high temperature near -7°c, low temperature near -9°c. WEDNESDAY - Mainly cloudy with isolated flurries, 2-4 cm / light south to southeast winds / alpine high temperature near -6°c, low temperature near -8°c.

Avalanche Summary

There have been no recent reports of avalanches, however information from this region is limited. Tell us what you see by posting to the Mountain Information Network! (MIN)

Snowpack Summary

50-90 cm of snow has fallen over the past week. Strong winds have likely formed wind slabs throughout the region. Deeper and more sensitive wind deposits are likely to be found at higher elevations. The storm snow sits on a weak layer of surface hoar (feathery crystals) and facets (sugary snow) that formed during the dry spell in early December. Information is limited in this region about how well the new snow is bonding to this layer. Deeper in the snowpack, there are several crusts including an early season crust with facets near the bottom of the snowpack.

Problems

Wind Slabs

Wind Slab avalanches are the release of a cohesive layer of snow (a slab) formed by the wind. Wind typically transports snow from the upwind sides of terrain features and deposits snow on the downwind side. Wind slabs are often smooth and rounded and sometimes sound hollow, and can range from soft to hard. Wind 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.