羅臼岳は濃霧と雨。足元と視界に注意

At 7:30 AM, the summit of Mt. Rausu is experiencing heavy drizzle with a temperature of 10.2 degrees Celsius and a felt temperature of 9.6 degrees Celsius. Humidity is at 95 percent, and visibility is limited to 2.4 kilometers. Light rain or drizzle is expected to continue throughout the day, with temperatures hovering around 10 degrees Celsius. Due to the sea breeze driven fog and persistent precipitation, all trails are wet and muddy, especially the exposed rocky sections of the Iwaobetsu Course, which will be slippery. Exercise extreme caution with your footing.

For activities in a felt temperature of 9.6 degrees Celsius, a fast-drying base layer, a mid-layer such as fleece, and waterproof breathable rainwear (jacket and pants) are essential. Being wet during activity can deplete energy and increase the risk of hypothermia. During breaks, make sure to maintain body temperature with warm drinks and spare insulation layers. Given the poor visibility, carrying a map, compass, and GPS device is crucial to prevent getting lost.

Those planning a traverse of the Shiretoko Mountain Range should be aware that poor visibility is likely to persist along the ridges. Mt. Rausu is a habitat for brown bears, making a bear bell and a bear canister or food locker mandatory. Brown bear activity remains high even in rainy conditions, so stay vigilant. Precipitation is forecasted to decrease in the evening, with cloudy skies overnight, but continued caution against hypothermia from daytime dampness is advised.