カールは霧中。稜線は冷涼、午後から雨模様

Kiso Komagatake summit currently experiences limited visibility under 1km, despite mostly clear skies. The temperature is 4.7 degrees Celsius, with a wind chill of 2.4 degrees Celsius, which is unseasonably cold for June. Those heading to the ridge should prepare with winter-like insulation. Be aware of the significant 9-degree Celsius temperature difference between the base and the summit.

While the daytime high is expected to reach 8.2 degrees Celsius around noon, gusts up to 11.8 m/s are forecasted at that time. With high humidity, the perceived temperature will drop significantly when exposed to the wind. Wear a wicking base layer, a fleece or light down mid-layer, and a windproof, waterproof outer shell. Gloves and a warm hat are also essential for protection against the cold on the ridge.

The ground is currently clear of snow, with exposed rock. However, be mindful of potentially wet residual snow in areas such as Hacchozaka within the Senjojiki Cirque. Precipitation probability rises sharply after 6 PM, with light rain expected to begin around 9 PM. Wet rock faces increase the risk of slipping, demanding careful foot placement, especially on the steep slopes of Hacchozaka and the rocky terrain of Mt. Hoken.

Given the limited daytime visibility, cold conditions, and deteriorating weather in the afternoon, an early start and early finish to your climb are strongly recommended today. Although no thunderstorms are forecast, a sudden change in weather is possible as the chance of precipitation increases. Temperatures will drop to 1.3 degrees Celsius overnight, and with light rain and wind, the risk of hypothermia rises, making an early descent advisable.