Avalanche Forecast

Issued: Apr 23rd, 2012 4:00PM

The alpine rating is moderate, the treeline rating is moderate, and the below treeline rating is moderate. Known problems include Loose Wet and Cornices.

snow safety, Parks Canada

Banff Yoho Kootenay.

Little freeze tonight, and some areas may see freezing levels to 3000m Tues. Hazard will increase quicker than usual while these conditions exist. Wait until we are back in a regular spring pattern before going into the big terrain. SH

Summary

Weather Forecast

Snowpack Summary

Avalanche Summary

Confidence

Freezing levels are uncertain on Tuesday

Problems

Loose Wet

Many loose, wet avalanches today on all aspects to size 3 below 3000m. starting in the afternoon. Tuesday should have less solar input, but with little freeze it wont take much to increase the hazard.

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

Elevations: All elevations.

Likelihood

Likely

Expected Size

1 - 3

Cornices

Cornices are starting to fall off ridges providing a large trigger for slopes below. Some of these giants have enough weight to initiate large avalanches that could step down to deeper weak layers and run full path.

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

Elevations: Alpine.

Likelihood

Possible

Expected Size

3 - 4

Valid until: Apr 24th, 2012 4:00PM