独立峰 剣ヶ峰へ。突風に注意し夏山を堪能せよ

Mount Ontake summit is mostly clear with a temperature of 9.1 degrees Celsius, feeling like 6.8 degrees Celsius. This contrasts sharply with the clear conditions and 20.1 degrees Celsius at the base. Be mindful of the significant temperature drop with elevation gain and prepare appropriate gear. Visibility is excellent this morning, promising a pleasant ascent towards Kengamine.

Daytime temperatures will rise to a maximum of 13.4 degrees Celsius, but northwesterly gusts are expected to reach up to 13.7 m/s at times. On the exposed white volcanic gravel slopes above the treeline, there is no shelter from the wind, increasing the risk of losing balance or experiencing a rapid drop in body temperature. For layering, wear a quick-drying base layer, carry a fleece or light down jacket as a mid-layer, and a windproof shell as an outer layer. Adjust layers frequently to regulate body temperature, especially during breaks when cooling can be rapid.

There is no precipitation or snowfall, so the ground is expected to be largely dry. However, due to high humidity, some areas may be damp from morning dew. Crampons or microspikes are not necessary, but rain gear is essential for wind and cold protection. Given Mount Ontake is an active volcano, carrying a helmet is strongly recommended for safety. While the risk of hypothermia from strong winds is low, be cautious of sweat chilling.

Clear skies will persist after 3 PM, with winds expected to subside towards evening and night. However, temperatures will drop to around 10 degrees Celsius, so ensure adequate cold weather protection if planning any nighttime activities.