Avalanche Forecast

Archived

Apr 30th, 2013–May 1st, 2013

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

Little Yoho.

This concludes our avalanche bulletin season. However, avalanches still persist. Mainly, we are faced with spring time conditions, cool mornings, hot afternoons. Danger will be HIGH on hot afternoons. Have a safe and enjoyable spring and summer.

Weather Forecast

The weekend of May 4 and 5 we expect to see double digit temperatures and HIGH avalanche danger in the afternoons (low in the cold mornings). Because there is still significant amounts of snow a high elevations expect the biggest spring avalanche cycle starting Saturday afternoon (May4).

Snowpack Summary

As springtime and warm temperature approach expect to see a daily swing between cool mornings and hot afternoons. This means the avalanche danger will be low in the morning and high in the afternoon. Expect the snowpack to become isothermal in the afternoon.

Avalanche Summary

Call 403-762-1470 between 8am and 5pm and ask to speak to the rescue leader for further avalanche information.

Confidence

Timing or intensity of solar radiation is uncertain on Saturday

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.