沢筋は増水傾向。額平川渡渉に慎重な判断を

Today on Horoshiri-dake, generally clear skies prevail, but be mindful of rising temperatures during the day. The summit currently reports 4.8 degrees Celsius with a feels-like temperature of 2.7 degrees Celsius. There is a significant temperature difference of approximately 10 degrees Celsius compared to the base at 320 meters, indicating a noticeable change in conditions with altitude.

The 7 centimeters of snow at the summit will continue to melt as daytime temperatures rise, reaching a maximum of 8.2 degrees Celsius. Expect slush and muddy conditions in the cirques and along stream beds due to snowmelt. Exposed rock ridges will likely be damp. The Ebiragawa Course involves over 20 river crossings, and snowmelt could increase water levels. Exercise extreme caution at each crossing, assessing the volume and flow carefully. Waterproof hiking boots or specialized river shoes are essential. Carrying chain spikes is recommended for potential icy patches on remaining snow.

During active periods, the feels-like temperature will range from 2 to 6 degrees Celsius. A quick-drying base layer, fleece, and windproof softshell are fundamental. Carry a lightweight down jacket for breaks or colder conditions on exposed ridges. While the risk of strong winds and lightning is low, be aware that Hidaka's deep primeval forest is active bear habitat. Always carry a bear bell and spray, and travel in groups.

From evening onwards, conditions will transition to partly cloudy and then cloudy. Nighttime temperatures are expected to drop below freezing, reaching a low of -2.2 degrees Celsius with a feels-like temperature in the negative 4s. Adequate cold-weather gear is crucial for overnight stays.