槍ヶ岳 午後天気急変 穂先鎖場は午前中勝負

As of 7:15 AM, Mt. Yari summit reports partly cloudy skies with a temperature of 9.1℃ and a felt temperature of 7.8℃. Visibility is good at 5.3km. The temperature difference from the base is approximately 10℃. Winds are generally light, but gusts up to 9.1m/s have been observed. Ground conditions are primarily exposed rock and mostly dry, though high humidity at 98% suggests some areas may be wet from morning dew. Precipitation probability increases in the afternoon, with a 94% chance of light rain by 3:00 PM.

The felt temperature will hover around 10℃ during the day, but it will drop further with afternoon rain and wind. This increases the risk of hypothermia. For the Hozaki chains and ladders, it is advisable to complete these technical sections during the morning when winds are calmer and visibility is good. The high chance of precipitation in the afternoon indicates a significant risk of sudden thunderstorms and lightning. Given the exposed rocky terrain, it is crucial to descend from the ridge immediately if thunder is heard.

Adequate layering is essential. Start with a base layer, add a mid-layer such as fleece, and carry a windproof and waterproof hard shell as an outer layer. Gloves and a hat are also mandatory. To mitigate the risk of hypothermia, plan to finish your ascent early and begin your descent before the weather deteriorates in the afternoon.