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 17th, 2018–Apr 18th, 2018

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

Regions

South Rockies.

Rising freezing levels combined with full sun will gradually elevate avalanche danger in the coming days.

Confidence

Low - Due to the number of field observations

Weather Forecast

WEDNESDAY: Mix of sun and cloud. Light southwest wind. Alpine temperature -2. Freezing level 1900 m. THURSDAY: Sunny with cloudy periods. Light southwest wind. Alpine temperature 0. Freezing level 2300 m. FRIDAY: Mix of sun and cloud. Moderate west wind. Alpine temperature 0. Freezing level 2300 m.

Avalanche Summary

No new avalanches were reported in this region on the weekend, although this time of year there is a lack of information being submitted to us. If you have been out, please take some time to post your observations to the Mountain Information Network (MIN).

Snowpack Summary

10-15 cm of new snow and moderate winds have formed fresh storm and wind slabs which are most reactive in wind affected terrain. These storm slabs overlie numerous crusts within the top 100 cm of the snowpack. A well settled mid-pack sits above sugary facets in many parts of the region, especially thin snowpack areas.

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.

Loose Wet

Loose Wet avalanches are the release of wet unconsolidated snow or slush. These avalanches typically occur within layers of wet snow near the surface of the snowpack, but they may quickly gouge into lower snowpack layers. Like Loose Dry Avalanches, they start at a point and entrain snow as they move downhill, forming a fan-shaped avalanche. Other names for loose-wet avalanches include point-release avalanches or sluffs. Loose Wet avalanches can trigger slab avalanches that break into deeper snow layers.