Avalanche Forecast
Avalanche Bulletin - Little Yoho
Natural activity is tapering, but we are still seeing sporadic large avalanches with small triggers. The next system is forecast to come in with lots of wind. If this wind comes, we expect it to rise the alpine hazard again on Tuesday
Avalanche Problem 1: Persistent Slabs
What Elevation?
Which Slopes?
Chances of Avalanches?
Expected Size?
Travel and Terrain Advice
- Be wary of slopes that did not previously avalanche.
- Watch for whumpfing, hollow sounds, shooting cracks or recent avalanches.
Avalanche Problem 2: Wind Slabs
What Elevation?
Which Slopes?
Chances of Avalanches?
Expected Size?
Much of the recent storm snow has now been effected by moderate to strong winds at higher elevations. Strong winds are forecast for Tuesday, expect new slab formation and possible triggering of the persistent layer.
Travel and Terrain Advice
- Use conservative route selection, choose moderate angled and supported terrain with low consequence.
- If triggered the wind slabs may step down to deeper layers resulting in large avalanches.
Avalanche Summary
The bulk of the recent avalanche cycle has tapered off. However, avalanche control with explosives today in Kootenay showed conditions are still touchy with avalanches to size 2.5, one of which was triggered with just the bag hitting the slope before the explosion occurred. Another size 3 natural was witnessed today on Quartz Ridge (Sunshine)
Snowpack Summary
Moderate to strong winds last Saturday redistributed the recent storm snow forming wind slabs at higher elevations. The three main mid-pack concerns are the Jan 16th, Jan 6th, and Dec.15 weak layers. These are a mix of facets, crusts and surface hoar and can be found 70cm to 150cm deep in the snowpack and have been producing very large avalanches
Weather Forecast
Warmer temps are moving in with another system off the coast. Expect alpine temps to be in the -5 to -10 range and dropping to -15 to -20 on Wednesday. Expect 5-10 cm of new snow Tuesday afternoon through Wednesday. Winds will spike to strong from the SW on Tuesday and then ease on Wednesday and Thursday. Skies should clear on Thursday.
Avalanche Forecasts in your Inbox
Avalanche Canada has switched to an RSS feed for its daily forecasts. This is a much more flexible method that allows automatic delivery to your email inbox, or to an RSS reader of your choice.
What are RSS feeds?
RSS (Really Simple Syndication) is a popular standardized file format allowing up-to-date delivery of web-based content. RSS feeds enable you to receive content updates from websites, delivered to your email through an RSS aggregator (such as blogtrottr.com) or viewed through applications called RSS readers (such as feedly.com).
Set up an RSS feed for your email:
Select a RSS aggregator
- Avalanche Bulletin - Little Yoho URL:
http://www.avalanche.ca/api/forecasts/little-yoho.rss - Copy the url and paste it into the appropriate field of your RSS aggregator.
- Fill in your email address.
- Voila! Watch the Avalanche Canada forecast roll into your inbox.
Forecast Disclaimer
Avalanche Canada's Public Avalanche Bulletin, and other information and services provided by Avalanche Canada, are intended for personal and recreational purposes only.
**THIS INFORMATION IS PROVIDED "AS IS" AND IN NO EVENT SHALL THE PROVIDERS BE LIABLE FOR ANY DAMAGES, INCLUDING, WITHOUT LIMITATION, DAMAGES RESULTING FROM DISCOMFORT, INJURY, OR DEATH, CLAIMS BY THIRD PARTIES OR FOR OTHER SIMILAR COSTS, OR ANY SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, ARISING OUT OF THE USE OF THE INFORMATION.**
The user acknowledges that it is impossible to accurately predict natural events such as avalanches in every instance, and uses the data in this bulletin with this always foremost in mind. The accuracy or reliability of the data is not guaranteed or warranted in any way and the Providers disclaim liability of any kind whatsoever, including, without limitation, liability for quality, performance, merchantability and fitness for a particular purpose arising out of the use, or inability to use the data.
Three weak layers exist in the mid snowpack: Jan 16, Jan 6, and Dec 15. All are a mix of sun crust, surface hoar and facets depending on the aspect and elevation. These layers are sensitive to triggering both naturally and by human triggering.