Avalanche Forecast

Issued: Mar 27th, 2019 4:00PM

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

william lawson, Parks Canada

Banff Yoho Kootenay.

The initial solar input on Thursday will likely shed the recent storm snow on southerly aspects causing an increase in avalanche activity.

Summary

Weather Forecast

A clearing trend for the rest of the week, will bring warming temperatures and increase solar inputs. Day time high temps for thursday, friday will reach 7C. Forecasted wind values are generally light.

Snowpack Summary

10-20cm of new snow overlays a variate of surfaces depending on aspects and elevations. A supportive melt freeze crust is present below this new snow in most areas excluding high north aspects. Many areas exhibit a cohesive midpack over the basal facets, while other thin areas have weak facets to the ground.

Avalanche Summary

No new avalanches observed or reported.

Confidence

Problems

Loose Wet

Clear skies and warming temperatures will increase the avalanche activity on solar aspects. The recent snow will quickly degrade with any direct solar inputs causing sluffing and loose wet activity.

Daytime warming will weaken surface layers.

Aspects: South East, South, South West.

Elevations: All elevations.

Likelihood

Possible - Likely

Expected Size

1 - 1.5

Valid until: Mar 28th, 2019 4:00PM