穂先周辺濡れた岩稜帯に視界不良。慎重な行動を

Current conditions at the Mt. Yari summit are lightly clouded with a perceived temperature of 1.1 degrees Celsius. Humidity is high at 96%, and visibility is less than 1 kilometer. The temperature difference from the base is 9.1 degrees Celsius. Light clouds are expected to persist through the day, but there is a 76% chance of light drizzle around 3 PM.

The ground surface has a shallow 3cm of snow, mixed with exposed, wet rocky sections and residual snow. The chained and ladder sections leading to the summit, known as Hozaki, will be particularly slick due to dampness, compounded by poor visibility, increasing the risk of falls. Extreme caution is required with every step. A helmet is recommended for protection against potential rockfalls.

The perceived temperature of 1.1 degrees Celsius poses a risk of hypothermia. Wear a quick-drying merino wool base layer, a fleece mid-layer, and a waterproof-breathable hard shell as an outer layer. During breaks, add a lightweight down jacket for insulation. Gloves and a knit hat are essential. Temperatures are expected to drop further towards evening, reaching below freezing overnight.

While the risk of lightning and strong winds is low, be mindful of potential weather changes in the afternoon. Sudden thunderstorms, known as yudachi, are a specific risk for Mt. Yari. Avoid pushing limits in poor visibility and be prepared to turn back early if conditions deteriorate.