雨と霧で視界不良 足元滑りやすく慎重な歩行を

Summit area of Asahidake is experiencing light rain with limited visibility of 2.4km. Temperature at the summit is 15.2°C (feels like 15.5°C), about 3°C lower than the base. Intermittent drizzle is forecast throughout the day, with temperatures remaining in the mid-14s°C. Gusts up to 11.1m/s are expected around 9 AM, which combined with high humidity, will make the effective temperature feel colder, potentially around 10°C if wet.

Trails will be wet to muddy all day. The hiking route from Asahidake Ropeway Sugatami Station to the summit will be particularly slippery due to wet rocks, increasing the risk of falls. Near the fumarole group Jigokudani, exercise extreme caution to avoid getting lost in poor visibility or inhaling volcanic gases. Also, be careful not to approach the hot springs due to the slippery ground.

For layering, a quick-drying base layer, a thin fleece mid-layer, and a waterproof/breathable rain suit (jacket and pants) are essential. Carry an extra insulating layer. While the risk of lightning is low, hypothermia is a serious concern due to the persistent rain and high humidity.

Precipitation is expected to subside in the evening, becoming cloudy at night with temperatures dropping to around 12°C. Winds will also weaken. Proceed with caution, ensure proper waterproofing and insulation, and avoid pushing limits today.