Contact Us


Drop us a line. 


Niseko Avy Bulletin

Niseko, Hokkaido, Japan Avalanche Bulletin.

Niseko Avalanche Bulletin for Friday, January 11th

Eddie Schoen

Note: this bulletin is published in the pm and effective for the following day. Be alert to differences in the forecast and actual snowfall amounts and weather activity overnight.

Backcountry Avalanche Danger Rating

  • Upper (>1000m): MODERATE

  • Mid (800-1000m): MODERATE

  • Lower (<800m): LOW

Current Avalanche Problems

  • Wind Slab | Likelihood: Possible | Size: small-medium

  • Glide Slab | Likelihood: Unlikely | Size: medium-large


Continued winds and visible blowing snow off of upper elevation ridges today mean that wind slabs and cornices are continuing to develop. I don’t want to go on ranting about wind slabs, however, I will say that you may encounter them in somewhat unexpected areas after the wind event we have seen over the last 48 hours.

A sizeable glide slab avalanche was observed today on a south facing aspect on Shiribetsu. The release likely occurred overnight and in a known problem spot. Additional glide cracks and releases noted on south and east facing aspects near Kiroro. I am adding glide slabs to the problem list for tomorrow, mainly since there’s little else to talk about ;). In all seriousness we are seeing some sunny skies combined with continued wind loading, adding new stresses and changes to the snowpack, which could contribute to existing glide cracks releasing and avalanching. If you see a glide crack, or know where one exists, it will be best to avoid skiing or riding underneath it. Best to avoid riding into one as well, I doubt it will be a pleasant experience. Visibility shouldn’t be too much of an excuse the next few days either.

Please familiarize yourself with the danger rating scale. You can find some great information on it here

As a local guide and avalanche professional, I have chosen to share this hazard assessment in the interest of encouraging better information sharing within the local community. This avalanche bulletin is to be used at your own risk and is based on very limited data gathered by myself and other guides working for Japan Powder Connection. Please use this information in addition to other resources and take responsibility for your own actions in the backcountry. Also, please respect and abide by all Niseko Area Rules. This information applies only to backcountry areas accessed externally from area resorts. This information is published the evening before and in effect for the following day.

As always, remember that making good decisions in the backcountry takes years of practice and experience. Having the gear is a small part of the equation. Take an avalanche safety course and hire a properly trained guide so you don’t learn the hard way!


Japan Powder Connection - Professional Backcountry Guides and Instructors

Niseko Avalanche Information - Niseko’s avalanche information page. Not a ‘bulletin’ by Western standards, but Shinyasan has been doing this for 20+ years and knows these mountains far better than myself.

Snow-Forecast - Niseko Area Weather Forecast

Niseko Now - Local Weather and Conditions Summary