白馬岳稜線は霧と低温。視界不良に警戒

Hakuba Dake summit is currently enveloped in light drizzle with visibility below 1km at 7:45 AM. The temperature stands at 0.6℃, feeling like -2.7℃, indicating winter-like conditions. With 99% humidity, the cold fog on the ridge will significantly deplete energy. The substantial 10.9℃ temperature difference between the summit and base requires careful attention to altitudinal temperature changes.

On the route from Sarukura via Hakubajiri to Hakuba Dake summit, residual snow on Daisekkei might still be present. Given the current drizzle and low temperatures, the snow surface could be hard and slippery, posing a significant risk of falls. As light crampons are often needed even in summer sections, carry microspikes or light crampons for potentially slippery rocky ridges and snow patches. The ground is generally wet, and due to the low temperatures, icy patches are a possibility.

The forecast for midday indicates a transition to partly cloudy skies, with temperatures rising to 3.3℃. However, gusts up to 10.7m/s will make it feel significantly colder. Proper layering is crucial to prevent hypothermia. Wear a quick-drying base layer, a fleece or light down mid-layer, and a waterproof-breathable outer shell. Gloves and a warm hat are also essential. Considering the poor visibility, delaying your ascent until conditions improve is a prudent decision.

Temperatures are expected to drop below freezing after evening, reaching -2.8℃ overnight. While winds will subside, strict cold weather protection is necessary for any nighttime activities. Clear skies are anticipated by early tomorrow morning, promising improved visibility. Throughout today's activities, remain vigilant for changes in weather and your physical condition.