快晴の登山日和。穏やかな風と硫黄の匂い

Today on Mt. Meakan, clear skies will prevail, offering a pleasant day for hiking. As of 7 AM, the summit registers 8.2 degrees Celsius (feels like 4.5 degrees Celsius), while the foothills are 13.1 degrees Celsius (feels like 10.2 degrees Celsius), indicating about a 5-degree difference due to elevation. Temperatures are expected to rise, reaching around 16.3 degrees Celsius near the summit by noon and remaining similar until 3 PM. Winds will be gentle from the southwest, with gusts up to 13.1 m/s, posing no significant impediment to movement.

The ground is dry to partly damp due to no precipitation or snow cover. Caution is advised on scree slopes, which can be slippery, even on common routes like the Onneto Course. As an active volcano, Mt. Meakan has fumaroles emitting sulfur gas. With today's southwesterly winds, areas downwind on trails and around crater lakes such as Akanuma and Aonuma may be affected by sulfur gas. If you notice any unusual smells, move away from the area immediately.

For layering, with daytime apparent temperatures ranging from approximately 7 to 11 degrees Celsius between 9 AM and noon, a moisture-wicking base layer, a thin fleece or synthetic mid-layer, and a windproof shell are appropriate. As indicated by the automatic risk assessment, a sharp temperature drop of 11 degrees Celsius is expected during the forecast period. Temperatures will plummet after 6 PM, reaching as low as 0.7 degrees Celsius by early morning. Carry an extra insulating layer, such as fleece or a light down jacket, as a precaution against sudden changes. Any activity after sunset requires strict cold weather preparation. The risk of lightning is low, but the risk of hypothermia increases significantly overnight. Make early decisions to turn back if conditions change.