Japan is experiencing severe winter weather conditions as a strong winter pressure system and cold air masses bring heavy snowfall, blizzards, and strong winds to regions from northern to western Japan, particularly along the Japan Sea coast. The extreme weather, which intensified on January 11, 2026, has caused widespread disruptions to transportation networks and daily life, with authorities warning residents and travelers to exercise extreme caution.

According to NHK, snowfall has been rapidly accumulating across regions from Tohoku to Hokuriku, with some areas experiencing blizzard conditions that have severely reduced visibility. The Japan Meteorological Agency has warned that the peak of snow and wind conditions is expected to continue through the morning of January 12, urging people to remain vigilant about potential impacts on transportation, as well as risks from avalanches and snow accumulation on rooftops.

Transportation networks across affected regions have experienced significant disruptions. The Sanyo Shinkansen, a critical rail link connecting major cities in western Japan, temporarily suspended operations on January 11 after foreign objects became attached to overhead power lines. JR West reported that service resumed around 11:30 AM, though delays continued to affect schedules throughout the day. Multiple conventional rail lines have also experienced cancellations and delays, particularly in areas experiencing the heaviest snowfall.

Air travel has been similarly affected, with numerous flight cancellations reported at airports across the Japan Sea coast and surrounding regions. Travelers are advised to check with their airlines before heading to airports, as conditions may lead to additional cancellations or delays extending into January 12.

Highway travel has become particularly hazardous, prompting authorities to implement strict safety measures. On the Sanyo Expressway, where vehicles became stranded earlier this month causing traffic jams exceeding 20 kilometers, West Nippon Expressway Company has deployed staff to verify that vehicles entering winter tire regulation zones are properly equipped. This proactive measure aims to prevent another mass stranding incident that could leave travelers trapped in dangerous conditions for extended periods.

The severe weather has also caused structural damage in several areas. In one incident, a traffic signal collapsed due to strong winds, while construction scaffolding at building sites also gave way under the force of the weather. In Kobe, equipment associated with the Kobe Luminarie, an annual light display commemorating victims of the Great Hanshin-Awaji Earthquake, was found toppled, likely due to wind damage, according to the event's organizing committee.

For foreign residents in Japan, these conditions underscore the importance of winter preparedness. Expats living in or planning to travel through affected areas should monitor weather updates regularly through NHK and other official sources. Those who must travel should ensure their vehicles are equipped with proper winter tires or chains, carry emergency supplies including food, water, and warm clothing, and allow extra time for journeys.

Authorities are particularly concerned about the risk of avalanches in mountainous areas and the danger of snow accumulation on rooftops, which can lead to structural collapse. Residents in heavy snowfall areas are advised to clear snow from roofs safely or seek professional assistance if accumulation becomes excessive.

The Japan Meteorological Agency continues to monitor the situation closely, with forecasts indicating that while conditions may begin to improve after January 12 morning, localized impacts could persist. Foreign residents should remain informed about local conditions and heed all warnings and advisories issued by authorities. Those unfamiliar with winter weather conditions should exercise particular caution and consider postponing non-essential travel until conditions improve.