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Parks Canada grant statham, Parks Canada

Little Yoho Avalanche Forecast

Apr 24th, 2019 4:00PM

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

One more nice day in the forecast for Thursday before a significant spring upslope drops 30-40 cm over the eastern slopes through the weekend. Avalanche hazard will rise starting Friday.

Summary

Weather Forecast

One more nice day on Thursday before a significant upslope storm begins to affect the region from the east side. Thursday will be a mix of sun and clouds with freezing levels to about 2000m - after that the winds switch to the NE on Friday, temperatures drop and upwards of 30 cm is expected by Saturday.

Snowpack Summary

Last week's storm snow has now settled but has been blown into windslabs by moderate to strong westerly winds in alpine areas - caution advised in leeward areas and where these slabs overlie buried sun crusts. Surface crusts or moist snow exist at lower elevations and on solar aspects depending on the time of day.

Avalanche Summary

No new avalanches have been observed or reported, but observations have been limited.

Confidence

Problems

Wind Slabs

Significant snowfall over the last week and recent strong winds have created fresh wind slabs in the alpine. Approach bigger slopes and lee terrain with caution.

Aspects:

North, North East, East, South East, North West.

Elevations:

Alpine.

Likelihood

Possible

Expected Size

1 - 2.5

Valid until: Apr 25th, 2019 4:00PM