視界不良と霧雨続く。硫黄ガス注意し慎重な歩行を

At 07:00, the summit of Mt. Meakan recorded a temperature of 0.1°C with a feel of -3.3°C. The base area was 5°C, indicating a nearly 5°C difference. Light drizzle will continue throughout the day, with temperatures rising to around 4°C. However, with 99% humidity, the perceived temperature will remain between sub-zero and low single digits. Winds on the ridge will reach a maximum gust of approximately 7.8 m/s, posing a low risk of strong winds. Nevertheless, visibility is expected to remain below 1km due to dense fog all day. Particular caution is required around the volcanic vents, as it will be difficult to visually assess changes in wind direction and the resulting shifts in sulfur gas concentration.

The ground will remain wet due to the light drizzle and high humidity. The unique scree slopes of Mt. Meakan will become slippery when wet, increasing the risk of falls even on popular routes like the Onneto Course. Pay close attention to your footing and proceed with extreme caution. To mitigate the risk of hypothermia, essential layering includes a quick-drying base layer, a thin fleece mid-layer, and waterproof-breathable shell layers for outer protection. Waterproof gloves and a knit hat are also crucial to prevent cold extremities.

Towards evening and night, the drizzle will cease, and temperatures will drop close to 0°C. While visibility is expected to improve slightly, activity after sunset should be avoided. Today's ascent requires utmost attention to poor visibility and challenging underfoot conditions. Plan your trip conservatively with an early start and timely descent.