濃霧に包まれ視界不良。濡れた岩場に足元注意

Mount Chokai summit is currently enveloped in dense fog, with visibility below 1km. Humidity remains at 99%, indicating wet rock surfaces and trails. Moist air from the Sea of Japan is stagnating around the summit, keeping the perceived temperature between 9.9°C and a maximum of around 11.4°C throughout the day. Gusts can reach up to 12.1m/s on exposed ridges, further lowering the effective temperature.

For your ascent, a quick-drying base layer, a fleece mid-layer, and a waterproof-breathable outer shell are essential. Carry full rain gear, warm gloves, and a hat. Exercise extreme caution on wet and slippery rocks, especially around the Shinzan lava dome where rockfall is a known risk. Poor visibility in this area increases the chance of losing the route and potential slips. Always verify your location and avoid pushing limits.

The combination of low temperatures, high humidity, and wind elevates the risk of hypothermia. Maintain your energy levels with frequent breaks and snacks.

While a slight improvement in visibility is forecast for the afternoon, do not expect a rapid clearing of conditions. Plan for an early start and consider an early return. No need for microspikes or crampons.