日本海望む快晴。稜線は風に注意

Today, Mount Chokai offers clear skies, promising magnificent views of the Japan Sea. While temperatures at the base will approach 20℃, the summit area will remain cooler, ranging from 11 to 12.5℃. Be aware of this significant temperature difference between the summit and base for effective thermal management during your ascent. Ground conditions are generally dry, but isolated snow patches, characteristic of Chokai's persistent snowfields, may still be present on north-facing slopes and in ravines. There is no risk of ice, so lightweight crampons or chain spikes are not required.

During the day, westerly winds from the Japan Sea will bring gusts up to 15m/s. These winds will be particularly noticeable along the long ridge routes, such as the Hokodate Course and Yunodai Course leading to Shinzan. The wind chill factor will make the air feel around 8℃, necessitating a windproof outer shell. Your layering should include a moisture-wicking base layer, a thin fleece for the mid-layer, and a light down jacket for stops or early morning use.

The risk of lightning is low. However, stopping for extended periods in strong winds can lead to a rapid drop in body temperature. It is crucial to resume movement before becoming too cold or to seek shelter from the wind. While the risk of rockfall around Shinzan is low, remain vigilant for loose rocks and choose your footing carefully. Visibility will remain excellent throughout the day, exceeding 20km. Winds will diminish in the evening, and temperatures will gradually fall, so ensure you have a headlamp and extra warm layers if planning any nighttime activity, and ideally descend before dusk.