Avalanche Forecast

Issued: Nov 20th, 2012 9:35AM

The alpine rating is below threshold, the treeline rating is below threshold, and the below treeline rating is below threshold.

Avalanche Canada swerner, Avalanche Canada

This bulletin is based on limited data. Local variations in conditions are likely to exist. Check out the forecasters blog for further details on interpreting early season bulletins.

Summary

Confidence

3 - 139

Weather Forecast

A strong SW flow continues Tuesday night into Wednesday. Ridgetop winds will be strong from the SW, while treeline winds are generally blowing out of the South. Light amounts of precipitation are expected tonight, with moderate amounts through Wednesday. Freezing levels will start to fall later tonight through the rest of the week.  The arctic front moving south will influence a cooler, dryer Thursday.

Avalanche Summary

No current avalanche observations have been submitted. I suspect there has been a natural cycle in the alpine and possible at treeline due to the current weather and conditions. If you and your friends have been out exploring and riding in the backcountry, and have some observations please send a n email to forecaster@avalanche.ca.

Snowpack Summary

Snowpack observations and information is very limited, and conditions across the region are likely to vary. Early season forecasting generally relies heavily on weather forecasts and actuals. In the alpine I suspect anywhere from 50-100 cm of snow. Storms slabs and wind slabs are likely prominent at alpine and treeline elevations. Adjacent regions have reported an early Nov crust in the alpine and maybe at treeline. Lack of information makes it hard to confirm this, but good to keep in the back of your mind for now. Continued loading may trigger this weak layer if it exists.Snow depths at treeline are roughly sitting around 50 cm in depth, and below treeline snow levels may still be below threshold.

Valid until: Nov 21st, 2012 2:00PM

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