濡れた岩場に視界不良。滑落と落石に厳重警戒

As of 7:30 AM, Mt. Tsurugi summit experiences light drizzle with a temperature of 8.1℃, feeling like 6℃. Gusts can lower the perceived temperature to below freezing. Humidity is 96%, and visibility is less than 1km. The temperature difference from the base is 5.6℃. This light drizzle is expected to persist through the morning, with a shift to partly cloudy conditions around noon, but significant improvement in visibility is unlikely. The ground condition is wet across all rocky ridges due to the drizzle. There is no snow cover, ice, or significant mud.

Under these conditions, steep rocky sections like Kani-no-Tatebai, Kani-no-Yokobai, and the chains on Betsuzan Ridge and Hayatsuki Ridge become extremely slippery. The risk of falling is significantly elevated compared to normal. Poor visibility further complicates route finding and can delay the detection of falling rocks. A helmet is mandatory. Waterproof rainwear, waterproof gloves, and non-slip hiking boots are essential. Crampons or microspikes are not required.

Perceived temperatures remain low throughout the day. Even at 2.77m/s wind, it feels like 5℃, but gusts of 12.4m/s can drop the perceived temperature to -4.3℃. Maintain body temperature with a three-layer system: base, mid, and outer. Be particularly vigilant against hypothermia during breaks. Light drizzle will intensify again after 6 PM, with temperatures dropping to around 5℃ overnight. By 3 AM on June 22nd, it will reach 3.6℃ with a 96% chance of precipitation, making night travel highly dangerous.