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 24th, 2019–Apr 25th, 2019

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

Regions

Glacier.

Strong solar input today will produce loose wet avalanches on solar aspects. Storm slabs are still lurking on N-NE Alpine features.

Weather Forecast

Today starts off cloudy with flurries/showers, making way for sunshine and high-pressure. FL will rise to 1800m, and winds will be moderate from the west. Clear tonight, with another a beautiful spring day forecasted for Thursday. Friday will be a little more unsettled, and the weekend looks wet, with another pulse of precip from the pacific.

Snowpack Summary

A supportive surface crusts caps a mainly isothermal snowpack at TL and below. In the high alpine, 50 - 60 cm recent storm snow is preserved on North aspects, and is sun affected elsewhere over a melt-freeze crust.

Avalanche Summary

3 new avalanches were observed in the HWY corridor yesterday, up to size 2.5 (Rail Road Gunners, MacDgully #7, and Single Bench). A widespread avalanche cycle to size 3 occurred last Friday. On Saturday skiers remotely triggered a size 2.5 slide on the Youngs Peak headwall that 3 people were involved in. All three were unhurt in the slide.

Confidence

Due to the number and quality of field observations

Problems

Storm Slabs

Storm Slab avalanches are the release of a cohesive layer (a slab) of new snow that breaks within new snow or on the old snow surface. Storm-slabs typically last between a few hours and few days (following snowfall). Storm-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.