午後から雨、カニのタテバイは滑りやすい

Mount Tsurugi summit is currently mostly clear with a temperature of 12 degrees Celsius. Winds are calm, but visibility is less than 1 kilometer and hazy. This poor visibility is expected to persist through the morning. Light rain will begin around 12:00 PM, with a precipitation probability of around 90 percent, continuing through the afternoon. The base area is also mostly clear, but there is a 5.5-degree Celsius temperature difference from the summit, making the ridge line considerably colder.

With the afternoon rainfall, steep rocky sections like Kani-no-Tatebai and the chains on the Betsuzan Ridge will become wet and slippery. Extreme caution is required, especially when descending. The risk of rockfall also increases on wet rock faces, so helmets must be worn at all times during activity. Congestion on rocky sections can also slow progress in the rain, potentially leading to hypothermia.

The effective temperature today will be around 11 degrees Celsius in the morning. During the afternoon rain, despite light winds, getting wet will make it feel colder than the actual temperature of around 11 degrees. While the risk of severe hypothermia is low, wear rain gear and ensure adequate insulation with a base layer and a mid-layer like fleece. A waterproof and breathable outer layer is essential.

Although no significant alert values were detected by the automatic risk assessment, poor visibility and afternoon rain will significantly impact activities. The rain is expected to stop around 9:00 PM after sunset, and the night will clear up, but temperatures will drop to around 10 degrees Celsius. Continuously monitor changes in visibility and temperature, and plan your actions accordingly.