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Archived

Avalanche Forecast

Apr 26th, 2019–Apr 27th, 2019
Alpine
2: Moderate
The avalanche danger rating in the alpine will be moderate
Treeline
2: Moderate
The avalanche danger rating at treeline will be moderate
Below Treeline
2: Moderate
The avalanche danger rating below treeline will be moderate
Alpine
2: Moderate
The avalanche danger rating in the alpine will be moderate
Treeline
2: Moderate
The avalanche danger rating at treeline will be moderate
Below Treeline
2: Moderate
The avalanche danger rating below treeline will be moderate
Alpine
2: Moderate
The avalanche danger rating in the alpine will be moderate
Treeline
2: Moderate
The avalanche danger rating at treeline will be moderate
Below Treeline
1: Low
The avalanche danger rating below treeline will be low

Regions: Kootenay Boundary.

Last Avalanche Forecast for the season. For additional information check out our Spring Conditions page at: https://goo.gl/cpx8Dq

New snow and moderate winds from a variety of directions may form small wind slabs reactive to human triggers.

Confidence

Low - Forecast snowfall amounts are uncertain

Weather Forecast

FRIDAY NIGHT: Partly cloudy / Strong, westerly winds / Alpine low -3 C / Freezing level 1500 m.

SATURDAY: Snow; 5-10 cm. / Moderate, westerly winds / Alpine high -1 C / Freezing level 1500 m.

SUNDAY: Mix of sun and cloud / Light, northeasterly winds / Alpine high 0 C / Freezing level 1500 m.

MONDAY: Mix of sun and cloud / Light, northwesterly winds / Alpine high 0 C / Freezing level 1500 m.

Avalanche Summary

No new avalanches were reported in this region on Thursday. However, there are currently no professional observers submitting daily observations. Please submit your observations to the MIN. Photos of avalanches or current conditions are particularly useful.

Snowpack Summary

As temperatures cool, we will enter a diurnal cycle during which the hazard will be low in the mornings, if there was a strong overnight freeze, and elevate throughout the day depending on warming and solar radiation. Hazard ratings are for the peak hazard expected during each day.

Check out this link for useful advice on managing avalanche hazard during spring conditions. HERE.

Avalanche Problems

Wind Slabs

New snow and moderate winds from a variety of directions may form small wind slabs reactive to human triggers.

  • Pay attention to changing conditions with elevation/aspect.
  • Be careful with wind loaded pockets, especially near ridge crests and roll-overs.
  • Use small slopes without consequence to test the bond of the new snow.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Possible - Likely

Expected Size: 1 - 1.5

Loose Wet

Any appearance of the strong April sun can initiate a loose wet avalanche cycle. The likelihood of loose wet avalanches increases as temperatures warm through the day and/or if the sun comes out for a prolonged period of time.

  • Avoid exposure to terrain traps where the consequences of a small avalanche could be serious.
  • A moist/wet snow surface, pinwheeling and natural avalanches all indicate a weakening snowpack.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 1 - 1.5