Banff Yoho & Kootenay National Park Avalanche Forecast

Issued: Apr 26th, 2021 4:00PM

Mon Apr 26th Current Conditions
Alpine Below Threshold Treeline Below Threshold Below Treeline Below Threshold
Tue Apr 27th 2 Day Outlook
Alpine Below Threshold Treeline Below Threshold Below Treeline Below Threshold
Wed Apr 28th 3 Day Outlook
Alpine Below Threshold Treeline Below Threshold Below Treeline Below Threshold

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

Good spring powder conditions can be found on high north aspects.

Click the "More Spring Conditions details" link found below for information on various spring condition scenarios.

Summary

Weather Forecast

Mixed sun and cloud forecast for Tuesday with freezing levels rising to 2200m. Upper elevation winds will increase to the mod to strong range by the afternoon.

Snowpack Summary

Surface crusts or "dust on crust" exist on all aspects to 2000m. In the alpine 10-25 cm of recent snow overlies crusts on solar aspects and dry snow on northerly aspects. Good freezes overnight make for solid crusts in the morning that become soft or corn-like in the afternoon (depending on aspect).

Avalanche Summary

No new avalanche activity observed or reported on Monday. Expect to see loose wet avalanches on solar aspects in the afternoon as the day warms up.

Confidence

Problems

Loose Wet

An icon showing Loose Wet

Likelihood

Likely

Expected Size

1 - 2

Expect to see loose wet avalanches on solar aspect in the afternoon. Pay attention to the solar inputs and how quickly the day is warming up.

  • Use caution on solar slopes if the snow is moist or wet.
  • Avoid slopes when the solar radiation is strong, especially if they have large cornices overhead.

Aspects:

South East, South, South West, West.

Elevations:

All elevations.

Wind Slabs

An icon showing Wind Slabs

Likelihood

Possible - Unlikely

Expected Size

1 - 1.5

Rising winds on Tuesday may create small wind-slabs near ridge-tops.

  • Be careful with wind loaded pockets, especially near ridge crests and roll-overs.

Aspects:

North East, East, South East.

Elevations:

Alpine.

Valid until: Apr 27th, 2021 4:00PM

Forecast Trend

The latest forecast danger ratings, broken down to elevation. See how an elevation is trending.