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Avalanche Forecast

Archived

Nov 24th, 2018–Nov 25th, 2018

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

Regions

Northwest Coastal.

This time of year observations are limited, so make sure to supplement this forecast with your own observations. If you've been out please post your observations to the Mountain Information Network MIN.

Confidence

Low - Due to the number of field observations

Weather Forecast

Overnight SATURDAY: Scattered flurries or rain, accumulation 2-5 cm in the alpine / light to moderate south wind / freezing level 800 mSUNDAY: Wet flurries or rain, accumulation 5-10 mm / moderate to strong south wind / freezing level 1200-1500 m.MONDAY: Rain, accumulation 15-25 mm / moderate to strong southwest wind / freezing level 1800-2000 m.TUESDAY: Rain, accumulation 10-20 mm / moderate to strong south wind / freezing level 1800-2000 m.

Avalanche Summary

No recent avalanches have been reported. However, we currently have very limited observations. If you have been out, please submit any observations to the Mountain Information Network MIN.

Snowpack Summary

There is an average of 60-110 cm of snow in the alpine. This decreases dramatically with elevation where the primary hazards are rocks, stumps, and open creeks. For those areas that have more snow, remember, "If there is enough snow to ride, there is enough snow to slide." We currently have very limited snowpack observations, so it is critical to supplement this information with your own observations.5-15 cm of recent storm snow is sitting on a crust that was formed during last weeks temperature inversion. There is likely an early season crust 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.