霧雨と残雪の旭岳。低温対策と足元に注意

Persistent drizzle is expected throughout the day on Asahidake. While the summit temperature hovers around 4°C, the perceived temperature will drop below 0°C, potentially reaching near -5°C around 9 AM due to gusts up to 9.9 m/s. With a significant snow depth of 177cm, expect widespread wet, slushy snow and muddy sections resulting from the drizzle and melting snow. For those ascending from Asahidake Ropeway Sugatami Station towards the summit, particular caution is advised around the Jigokudani (Hell Valley) area. Reduced visibility from the drizzle combined with volcanic gas from the fumaroles increases the difficulty and risk in this section.

Essential gear includes full waterproof and breathable rainwear. A quick-drying base layer and insulating mid-layers such as fleece or a light down jacket are crucial. Waterproof gloves and boots are also mandatory to prevent saturation. Carry microspikes or light crampons for safer travel on slippery, slushy snow.

The continuous drizzle and low temperatures elevate the risk of hypothermia. Strict adherence to waterproof layering and regular breaks for hydration and caloric intake are vital. Daytime gusts can reach up to 9.9 m/s, feeling stronger on exposed ridges. Temperatures will drop to near 0°C overnight, with gusts intensifying to 13.6 m/s by midnight, making any evening or night travel inadvisable.