冷たい霧雨と視界不良。旧道沢ルートは滑落注意

The summit currently reports 2.7℃, feeling like -0.7℃, with visibility less than 1km in dense fog. There is a temperature difference of about 4℃ compared to the base. Temperatures are forecast to gradually drop, with light drizzle starting around noon and reaching -0.2℃ by 3 PM. Wind chill will remain below freezing throughout the day.
Ground conditions are generally wet to muddy due to the low temperatures, high humidity, and expected drizzle. There is no snow cover, but wet rocks and roots are extremely slippery. The Old Trail, particularly its continuous waterfalls section, poses a very high risk of slipping and falling on wet rock. For those considering the Kiyosato Lodge Loop Route, the New Trail along the ridge also demands strict attention to poor visibility and cold weather precautions.
Essential layering includes a wicking base layer, a mid-layer like fleece, and a waterproof-breathable outer shell. Waterproof gloves and a warm hat are also necessary. The risk of hypothermia persists throughout the day. Gusts reached up to 13.1m/s, affecting exposed ridge lines. Given the poor visibility, cold drizzle, and high risk of slipping on wet ground, extreme caution is advised for all hikers today, even for experienced mountaineers.