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Avalanche Forecast

Archived

Mar 16th, 2021–Mar 17th, 2021

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

Regions

Little Yoho.

Forecasters are relying on weather models predicting daytime warming which can vary widely. A cool day is expected on Wednesday, but if you encounter warm temperatures default to conservative choices. Start your day exceptionally early.

Weather Forecast

Expect a good freeze tonight with clear skies. Clear and sunny again tomorrow with light SW wind and temperatures should remain below cool. Valley temps are going to be near 0C in the warmest part of the day.

Snowpack Summary

Amidst extensive wind effect and sun crusts in the alpine, pockets of dry low density snow can be found on Northerly aspects. Expect a breakable to skiable temperature crust below 1700m. Ski crampons/crampons may be helpful to have on hand.

Avalanche Summary

No avalanches were observed or reported in the past 2 days. Although we expect some loose wet to have occurred later in the afternoon with daytime heating and solar input at treeline and below.

Confidence

Timing or intensity of solar radiation is uncertain

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.