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Avalanche Forecast

Archived

Apr 28th, 2016–Apr 29th, 2016

Alpine
Below Threshold.
Treeline
Below Threshold.
Below Treeline
Below Threshold.
Alpine
Below Threshold.
Treeline
Below Threshold.
Below Treeline
Below Threshold.
Alpine
Below Threshold.
Treeline
Below Threshold.
Below Treeline
Below Threshold.

Regions

Glacier.

We have finished producing daily forecasts for the year. Enjoy the SPRING CONDITIONS. Stay up to date on mountain conditions with Parks Mountain Safety and the ACMG's Mountain Condition Report.

Weather Forecast

Spring weather conditions can easily swing between cold wintery storms and warm summer-like afternoons. Although the snowpack is receding, new storm slabs can develop under the right conditions. Be sure to study the weather forecast before heading into the backcountry.

Snowpack Summary

Melting is happening fast at lower elevations.  Expect open creeks in the valley bottoms. The snowpack will become weak with daytime warming, solar input, and rain. Watch the snowpack carefully as the day progresses and be sure to start and end your days early.

Avalanche Summary

Loose wet avalanche continue to be observed with daytime warming.

Confidence

Problems

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.

Wet Slabs

Wet Slab avalanches are the release of a cohesive layer of snow (a slab) that is generally moist or wet when the flow of liquid water weakens the bond between the slab and the surface below (snow or ground). They often occur during prolonged warming events and/or rain-on-snow events. Wet Slabs can be very unpredictable and destructive.