SW Hokkaido — Avalanche Forecast

The latest avalanche bulletin for SW Hokkaido (Japan) was valid until Tuesday, March 31, 2026 (danger 2 — Moderate). No newer forecast has been published — likely off-season.

Valid for
Published:

This bulletin expired on Tuesday, March 31, 2026 — no newer forecast has been published.

Maximum Danger
2 · MODERATE
SW HokkaidoJP-sw-hokkaido
2

Conditions continue to represent a regular spring cycle with a melt-freeze cycle occurring. The freezing level will again rise to above 1000 meters today, and any overnight surface freeze will soften rapidly. Glide cracks continue to grow with failures observed over the weekend. Avoidance of terrain below these features is strongly suggested throughout spring. As snow coverage continues to decrease, hazards will appear, such as rocks and vegetation.

Danger by Elevation

Alpine1Low
Treeline2Moderate
Below treeline2Moderate

Active Avalanche Problems

Wet Snow
Wet Snow
Treeline and below
Size1.5/5
FrequencyPossible
Glide Avalanche
Glide Avalanche
Treeline and below
Size2/5
FrequencyPossible

No new avalanche activity has been reported. Natural glide avalanches have been observed this week on multiple aspects up to size 2. The wind direction is forecast to change to a northerly flow during the day today and remain light to moderate. High clouds are expected for much of the day with periods of broken sunshine. Freezing levels will again rise to above 1000 meters as spring conditions continue.

A melt-freeze cycle continues across all aspects. Fluctuating freezing levels have made the upper pack moist, although layering can still be found in the mid and lower snowpack. Firm surface conditions in the morning are expected to soften during the day.

Source: Japan Avalanche Network (JAN) · View Original Bulletin

Original (EN)

Frequently asked questions

What does avalanche danger level 2 (Moderate) mean?

Heightened avalanche conditions on some steep slopes — careful route selection and terrain evaluation are needed.

How often is the SW Hokkaido forecast updated?

Avycast refreshes hourly; the bulletin is republished by Japan Avalanche Network (JAN) usually once a day during the season.

Who publishes the SW Hokkaido avalanche forecast?

Japan Avalanche Network (JAN) — the official warning service. Avycast aggregates and translates it; always check the original bulletin.

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