Avalanche Forecast

Issued: Nov 26th, 2014 8:05AM

The alpine rating is below threshold, the treeline rating is below threshold, and the below treeline rating is below threshold. Known problems include Wind Slabs.

Peter, Avalanche Canada

Northwest Inland.

Cool Arctic air is pushing in to the Northwest. Expect outflow winds (from the north or east) to start creating new wind slabs in exposed lee terrain.

Summary

Weather Forecast

Summary: Clearing and cooling with invading arctic airmass. Thursday: A mix of sun and cloud with a chance of flurries. Temperatures at 1500 m drop close to -20. Winds are moderate to strong from the northeast. Friday and Saturday: Mainly sunny and cold. Winds are strong from the NE.

Avalanche Summary

A Size 2 avalanche was observed in a steep southeast facing bowl at 2300 m a few days ago, but there are no recent observations. Please let us know what you're seeing out there. Email us at forecaster@avalanche.ca.

Snowpack Summary

As we begin our forecasting season, we are working with limited information from the field. Recent reports from Hudson Bay Mountain suggest an overall shallow snowpack with approximately 20cm of recent storm snow sitting on a crust that formed earlier in the month. This interface was found to be faceted and produced hard but sudden shears while testing. The recent storm snow has also likely been redistributed into locally deep slabs on lee slopes at alpine elevations. Check the bond of the snowpack at this level and take a cautious approach.

Problems

Wind Slabs

Outflow winds are forecast to pick up over the next few days. As this happens some areas could see reverse loading as windward slopes are stripped bare and lee slopes develop dense or hard wind slabs.

Be cautious as you transition into wind affected terrain.>Avoid travelling in areas that have been reverse loaded by winds.>

Aspects: North, North East, East, South East, South.

Elevations: Alpine, Treeline.

Likelihood

Possible

Expected Size

1 - 3

Valid until: Nov 27th, 2014 2:00PM