Avalanche Forecast

Issued: Apr 15th, 2013 4:00PM

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

brian webster, Parks Canada

Banff Yoho Kootenay.

Summary

Weather Forecast

A ridge of high pressure builds in from the west and should be firmly established over the area on Wednesday. On Tuesday the forecast calls for mixed sun and cloud with freezing levels around 1200 m. A warming trend is forecast for the the end of the weak with freezing levels rising to 2000 m by Friday.

Snowpack Summary

Between 10 and 40 cm of storm snow has fallen in the alpine over the last five days. The storm snow is bonding well to crusts on solar aspects and to faceted snow on northerly aspects. Thin wind slabs can be expected in the high alpine on a variety of aspects. Temperatures stayed cool all day on Monday.

Avalanche Summary

No avalanches have been observed or reported in the past 48 hours.

Confidence

Due to the number and quality of field observations

Problems

Wind Slabs

Watch for isolated soft slabs in the lee of alpine features. These slabs may be hidden by recent light snowfall.

Be cautious as you transition into wind affected terrain.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood

Possible - Likely

Expected Size

1 - 2

Valid until: Apr 16th, 2013 4:00PM