稜線は突風。額平川の沢渡渉は水量と足元に注意

The summit is partly cloudy with a temperature of one degree Celsius, feeling like minus three point eight degrees. Throughout the day, gusts are expected to exceed seventeen to twenty meters per second, bringing the feels-like temperature down to minus two to minus three degrees Celsius. Movement on exposed ridges will be challenging, with an increased risk of whiteout conditions. A windproof and waterproof outer layer is essential, along with sufficient mid-layers for insulation.

Current snow depth is fifty-seven centimeters. The positive daytime temperatures will soften the snow, leading to increased meltwater in streams and slopes. On the Nukanobiragawa Course, which winds through the deep primeval forest of Hidaka, stream water levels are likely to be elevated. Over twenty stream crossings will present unstable and slippery footing, requiring extreme caution. Some remaining snow patches may have turned into ice, so carrying microspikes or crampons is advised. An ice axe can also be useful. It is the active season for brown bears, so carrying a bear bell and spray, and moving in groups, is recommended.

Temperatures will drop below freezing after sunset, and while winds will gradually calm, the feels-like temperature will remain severe. The risk of hypothermia is high throughout the day, emphasizing the importance of managing physical condition and taking frequent breaks during activity.