鳥海山 新山は岩稜露出。雪渓は緩む

Currently, the summit of Mt. Chokai is mostly clear with a temperature of 8.4°C, feeling like 6.2°C, a significant 10.4°C colder than the base. Clear skies are forecast to continue throughout the day, with temperatures reaching a high of 11°C by 3 PM. While winds are generally light, gusts up to 8.6 m/s are expected during the day. Considering these gusts, the perceived temperature could drop close to freezing even in daylight hours.

Ground conditions are primarily dry. However, Mt. Chokai is known for retaining snowfields until autumn. It is highly probable that snow patches remain in shaded areas and gullies, especially on higher elevations of popular routes like the Hokodate course and Yunodai course. With rising daytime temperatures, these snowfields will soften and become slippery, requiring extreme caution during passage. Carrying microspikes or light crampons is recommended.

For layering, a moisture-wicking base layer, a mid-layer such as fleece or a light down jacket, and a windproof and waterproof outer shell are essential. Gloves and a hat should also be carried. The Shinzan peak area features exposed rock ridges, posing a risk of rockfall, so remain vigilant of your surroundings and be cautious of loose rock. While the risk of lightning is low, as an isolated peak, sudden strong winds and dense fog from the Sea of Japan can develop rapidly, demanding constant awareness. Winds will further diminish after sunset, with temperatures dropping to 4.7°C overnight.