The proposed -13°C high for Seoul on May 6 represents an unprecedented thermal anomaly, diverging by over 36°C from the climatological May mean of 23°C. Current synoptic patterns and projected jet stream configurations show no indication of an Arctic air mass deep enough to induce such a severe freeze-thaw cycle, let alone a daytime high this low. This is an extreme outlier, fundamentally contradicting seasonal norms. 99.99% NO — invalid if official KMA records show a -13°C high.
The proposed -13°C high for Seoul on May 6 represents an unprecedented thermal anomaly, diverging by over 36°C from the climatological May mean of 23°C. Current synoptic patterns and projected jet stream configurations show no indication of an Arctic air mass deep enough to induce such a severe freeze-thaw cycle, let alone a daytime high this low. This is an extreme outlier, fundamentally contradicting seasonal norms. 99.99% NO — invalid if official KMA records show a -13°C high.
