残雪の旭岳 穏やかな登高日。午後は気温上昇

Mount Asahidake presents mild conditions for spring ascent today. The summit currently reports cloudy skies with a temperature of 5.6 degrees Celsius, feeling like 2.7 degrees Celsius. Winds are light, and visibility is 1.5 kilometers. There is a 3.4-degree Celsius temperature difference between the summit and the base, indicating colder conditions at higher elevations. Temperatures are expected to rise during the day, reaching a felt temperature of around 6.6 degrees Celsius by noon, but proper cold weather gear is essential throughout the activity.

The route from Sugatami Station to the summit involves significant snow travel, with a snow depth of 137 centimeters. While the snow will soften with rising daytime temperatures, icy patches may persist in shaded areas or early morning. Around the fumarole group (Jigokudani), snow can obscure the trail, requiring careful route finding, especially considering potential gas emissions. Light crampons or microspikes and trekking poles are mandatory. A waterproof and windproof shell is also crucial for active wear.

An automated risk assessment indicates a sudden drop in temperature. Over the forecast period, temperatures are expected to fall by nearly 9 degrees Celsius, with a rapid cooling towards evening and sub-zero temperatures by early morning. Limit your activity to daylight hours and prepare an extra insulating layer before departing. The risk of hypothermia becomes extremely high for nighttime activities, so avoid being on the mountain after dusk. While lightning risk is low, 1.5 kilometers visibility is not excellent, so always carry navigation equipment such as GPS, maps, and a compass.