霧雨で濡れた足元。視界不良の稜線に注意

Mount Iwate summit is currently enveloped in heavy drizzle, with a temperature of 9.7°C and a perceived temperature of 9.1°C. Humidity is 99%, and while wind speeds are low, getting wet will further reduce the perceived temperature. Drizzle is expected to continue throughout the day, intensifying to heavy drizzle with 1.2mm of precipitation by 3 PM. Due to this continuous rain, trails are wet to muddy. Extreme caution is advised, especially during descent, as surfaces will be slippery.

Visibility is less than 1km, increasing the risk of getting lost on the Okachi-meguri route around the Yakushidake Crater and along ridges above the tree line. Loose rocks on the crater rim are easily overlooked in poor visibility, posing a risk of falls or slips. A waterproof and breathable rain suit (jacket and pants) is essential. For layering, a quick-drying base layer and a synthetic fleece mid-layer that retains warmth when wet are recommended. Waterproof gloves and a hat should also be carried.

There are no signs of lightning activity at present. Wind speeds, even during gusts, are low at 5.3m/s, indicating a low direct risk from strong winds. However, the combination of temperature, high humidity, and getting wet poses a constant risk of hypothermia. During your activity, hydrate and fuel regularly, and change wet clothing promptly. Overall, travel is possible with careful attention to poor visibility and challenging underfoot conditions, but a conservative plan and the willingness to turn back are crucial. The weather is expected to clear around midnight, becoming mostly sunny by early morning, though temperatures will drop to around 7°C.