額平川は穏やか。稜線は午後に風強まる

The summit is clear with 2.8km visibility, a contrast to the cloudy lower elevations. Summit temperature is 3.1℃, feeling like 0.8℃ due to low wind. Temperatures will gradually rise through the day, reaching around 8℃ by afternoon. For the Nukabiragawa Course, river crossings are expected to be stable with no immediate risk of flash floods due to zero precipitation. However, the river water is cold, necessitating proper river crossing gear and careful thermal management to prevent hypothermia from wet feet.

Layering should consist of a wicking base layer, a fleece or light down mid-layer, and a waterproof-breathable outer shell, as perceived temperatures will range from 0℃ to 7℃. Be prepared to adjust layers frequently as activity levels change. Ground conditions are mostly dry to damp, except for wet riverbeds. There is almost no remaining snow, and rocky sections are exposed. Essential gear for the Nukabiragawa Course includes river shoes or water-compatible hiking boots, gaiters, a change of clothes, and trekking poles. Rain gear should also be carried.

Lightning risk is very low due to minimal precipitation forecasts. Strong gusts up to 8.2 m/s are expected in the afternoon. While not severe enough to halt movement, winds on ridges and within the cirque terrain can significantly lower perceived temperatures. Hypothermia risk is currently low but increases if you get wet in the river or spend extended periods exposed to wind on ridges. The deep primeval forests of Hidaka are dense bear habitats; robust bear countermeasures are crucial.