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 16th, 2019–Apr 17th, 2019

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

Regions

Sea To Sky.

Strong southwest wind may form new wind slabs up high.

Confidence

High -

Weather Forecast

TUESDAY NIGHT: Cloudy with light snowfall, accumulation 2 to 5 cm, moderate to strong southwest wind, alpine temperature -5 C, freezing level 1400 m.

WEDNESDAY: Cloudy with intermittent snowfall, accumulation 2 to 5 cm, moderate southwest wind, alpine temperature -4 C, freezing level 1500 m.

THURSDAY: Cloudy with flurries, accumulation 10 to 20 cm, light to moderate southwest wind, alpine temperature 0 C, freezing level 1600 m rising to 2400 m.

FRIDAY: Cloudy with rain switching to snow, accumulation 20 mm rain followed by 5 to 10 cm of snow, moderate southwest wind, alpine temperature 0 C, freezing level 2400 m dropping to 1500 m.

Avalanche Summary

Some small wind slabs were triggered naturally on Monday. Otherwise, small loose sluffs were triggered by skiers in the alpine.

Snowpack Summary

New wind slabs may from with around 5 to 10 cm of new snow and strong southwest wind. A melt-freeze crust or moist surface snow is expect below around 1500 m. The remainder of the snowpack is consolidated and strong. The snowpack is rapidly melting below treeline.

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.