穂先薄曇り気温低下午後から注意

Mount Yari summit is partly cloudy with a temperature of 4.2°C, feeling like 1.5°C. Wind is light, and visibility is 4.7km. The morning is expected to become mostly sunny, but it will turn partly cloudy around noon and become cloudy in the afternoon. Perceived temperature will range from 0°C to 4.5°C during the day. With no precipitation or snow cover, the main routes, including the chains and ladders on the summit ridge, are exposed rock and dry. However, the cooling temperatures may make some damp sections slippery, requiring careful footing.

As indicated by the automated risk assessment, a sharp temperature drop of 7°C is expected during the forecast period. Temperatures will gradually decrease during afternoon activities and fall below freezing at night, increasing the risk of hypothermia. For layering, use a moisture-wicking base layer, a fleece mid-layer, and a waterproof-breathable shell as outer layer. Always carry an extra insulating layer, such as down or synthetic insulation. Make early decisions to turn back if conditions worsen.

The risk of lightning is low today. Maximum wind gusts are around 7m/s, so strong winds will not restrict movement. However, perceived temperatures can drop quickly on the ridges far above the tree line. Rain gear, a warm hat, and gloves are essential. Crampons or microspikes are not necessary, but a helmet is recommended for traversing the rocky terrain.