Avalanche Forecast Kootenay Boundary

Date Issued: Valid Until:

Avalanche Canada jsmith, Avalanche Canada

Avalanche Forecast

Thu Apr. 25th ยท 3:46PM

Alpine

Danger Ratings Moderate

Treeline

Danger Ratings Low

Below Treeline

Danger Ratings Low
Loose Wet Loose Wet

Alpine

Danger Ratings Moderate

Treeline

Danger Ratings Moderate

Below Treeline

Danger Ratings Low

Alpine

Danger Ratings Moderate

Treeline

Danger Ratings Moderate

Below Treeline

Danger Ratings Low

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.

Confidence

Low - Due to the number of field observations

Weather Forecast

THURSDAY NIGHT: Cloudy / Light, southwesterly winds / Alpine low -2 C / Freezing level 1700 m.

FRIDAY: Cloudy with isolated alpine flurries; 0-5 cm. / Light, northwesterly winds / Alpine high 3 C / Freezing level 2000 m.

SATURDAY: Cloudy with alpine flurries; 3-10 cm. / Moderate, westerly winds / Alpine high -1 C / Freezing level 1700 m.

SUNDAY: Mix of sun and cloud / Light, northeasterly winds / Alpine high -1 C / Freezing level 1600 m.

Avalanche Summary

No new avalanches were reported in this region on Wednesday. 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.

Problems

Loose Wet

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.

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

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood

Possible - Unlikely

Expected Size

1 - 2