霧雨と風の午前。午後は本降りの雨

Mount Chokai is partly cloudy this morning. The summit temperature is 8.3℃, with a wind chill of 6.4℃. The significant 12.4℃ temperature difference from the base means the perceived temperature will drop sharply with elevation gain. Light drizzle is expected this morning, with visibility at 3.7km, which is somewhat poor. Given Mount Chokai's characteristic as an isolated peak prone to dense fog from the Sea of Japan, particular caution is advised for visibility on ridgeline routes such as the Hōkodate Course.

For today's activity, it is essential to carry a base layer, a mid-layer such as fleece, and a waterproof, breathable outer shell. Rain is expected to start by 3 PM, turning into heavy downpours overnight. The ground will become wet to muddy, and the rocky areas around Shinzan will be slippery due to the rain, requiring careful footing.

Winds are forecast to gust up to 9m/s this morning, increasing to over 18m/s by night. Strong winds from the Sea of Japan are a distinctive risk for Mount Chokai, and prolonged exposure on ridgeline routes will be physically demanding. Considering the onset of rain and strengthening winds in the afternoon, it is advisable to plan your ascent to complete your activity by noon. Descent should be finalized by 3 PM at the latest.