AVYCASTHakuba — Avalanche Forecast
The latest avalanche bulletin for Hakuba (Japan) was valid until Sunday, April 5, 2026 (danger 2 — Moderate). No newer forecast has been published — likely off-season.
This bulletin expired on Sunday, April 5, 2026 — no newer forecast has been published.
The weather will improve, but consider that the high temperatures and the fact that a sufficient amount of rain fell yesterday make the slopes with glide cracks in them, not good. Keep a sufficient distance and do not stay within that terrain. Also, be alert for leftover snow blocks. Be aware of the slope above you. Today is the last avalanche bulletin for the Hakuba area for this season. Thank you very much for your cooperation.
Danger by Elevation
Active Avalanche Problems
No new avalanches were reported yesterday (4th). The Japan Meteorological Agency is forecasting northerly winds, cloudy and occasionally sunny with a high of 19 °C (418 m elevation) for northern Nagano Prefecture. At AMeDAS Hakuba (elevation 703 m), the temperature is 8.4 °C (as of 5:00 a.m.), with 6 mm of precipitation in the past 24 hours. At AMeDAS Otarii, 24 mm of precipitation has been observed. At the main ridge (elevation 2,400 m), the temperature is 4.6 °C (as of 5:00), with southwesterly winds averaging 7 m/s and a maximum instantaneous wind of 18 m/s.
Rainfall since yesterday afternoon has been heavier on the northern side of the Hakuba Valley. Since the date change, temperatures have also been 4-5°C on the main ridge, and the entire mountain is wet. Warm winds are coming in and higher temperatures are forecast during the day. Please be vigilant on slopes with glide cracks, including even alpine areas.
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 Hakuba forecast updated?
Avycast refreshes hourly; the bulletin is republished by Japan Avalanche Network (JAN) usually once a day during the season.
Who publishes the Hakuba avalanche forecast?
Japan Avalanche Network (JAN) — the official warning service. Avycast aggregates and translates it; always check the original bulletin.
Nearby Regions
- Tateyama · 24 km
- Myoko · 35 km
- Kagura Tanigawa Hotaka · 90 km