湿原は雨とガス。道迷いと低体温症に警戒

Naeba summit currently experiences rain with an air temperature of 7.4 degrees Celsius, feeling like 4.8 degrees Celsius. Rain is expected to continue through the morning, with gusts potentially reaching up to 15.1 meters per second. The high humidity of 95% combined with getting wet and exposed to wind significantly lowers the perceived temperature, posing a high risk of hypothermia. Ensure you wear a moisture-wicking base layer, a fleece or light down mid-layer, and a waterproof-breathable rain jacket and pants.

The ground is wet and muddy due to the rain. Especially on the vast Naeba summit plateau, wooden boardwalks will be slippery, and stepping off them risks deep mud. Current visibility is 1.6 kilometers, but continuous rain and high humidity this morning are conducive to dense fog formation on the summit plateau, dramatically increasing the risk of getting lost in the expansive wetland. Hikers using the Haraigawa or Koakazawa courses must exercise extreme caution with navigation on the plateau, diligently using GPS and maps for current location checks.

Rain is forecast to cease by afternoon, transitioning to cloudy skies, but temperatures will remain low at around 7.5 degrees Celsius. Overnight, temperatures will drop further to the 5-degree range. If your activity extends into the evening, do not neglect your warm layers. While the risk of lightning is low, full rain gear is essential, and trekking poles will aid stability on slippery boardwalks.