羅臼岳は濃霧に包まれ視界不良。濡れた岩稜は滑りやすい。

Rausu Peak summit is currently shrouded in dense fog with visibility under 1km. The air temperature is 1.4℃, but the wind chill makes it feel like -1.4℃. There is a significant temperature difference of over 10℃ from the base, requiring careful layering. Light drizzle is expected from the morning, making the rocky sections near the summit wet and slippery. This increases the risk of falls and getting lost, particularly on routes like the Shiretoko Mountain Range Traverse. Coastal views are not to be expected today.

Given the wind chill, wear a moisture-wicking base layer, a fleece or light down mid-layer, and a waterproof-breathable rain jacket and pants as an outer layer. Although there is no snow cover on the summit, be cautious of potential slips on any remaining snow patches in shaded areas. A map and compass, or GPS, are essential equipment.

Intermittent light rain will continue into the afternoon, but winds will remain light with a low risk of lightning. However, continuous exposure to wet conditions increases the risk of hypothermia. Take frequent breaks and change clothes as needed to maintain body temperature. Unless visibility improves, consider shortening your hike and avoid pushing for the summit if conditions remain poor. Precipitation is expected to cease by evening, with winds further weakening overnight.