South Korea expanded its heat-wave severe warnings to include Changwon and Jinju on Monday as extreme temperatures climbed above 38°C [1].

This escalation reflects a critical public health risk as a "heat dome" traps high humidity and rising temperatures across the peninsula following the monsoon season [1, 3]. The severe warning is the highest level of alert, triggered when the daytime apparent temperature reaches 38°C or higher and the maximum temperature hits 39°C or higher for at least one day [1].

Authorities have extended these warnings to the Gyeongsangnam-do region after temperatures in Yangsan reached 38°C [1]. Other areas experiencing extreme heat include Daegu, Gyeongju, Gwangju, Gwangyang, Yangsan, and Busan [1, 2]. In Gyeongju, temperatures exceeded 37°C [1].

While the southern regions face the most intense heat, the capital is also affected. Seoul reported an apparent temperature of 34°C [2]. The current weather pattern follows a trend of unprecedented heat across the country, including previous alerts in Gyeongbuk's Pohang and Gyeongsan [3].

"Especially due to the extreme heat, the heat-wave severe warning was expanded to Changwon and Jinju in Gyeongnam this morning," reporter Jung Hye-yoon said [1].

Local officials are monitoring the situation as the heat dome persists. The combination of humidity and high heat increases the risk of heat-related illnesses and deaths. The government continues to advise citizens to limit outdoor activities during peak sunlight hours to avoid heatstroke.

“South Korea expanded its heat-wave severe warnings to include Changwon and Jinju.”

The expansion of the 'severe warning' status indicates that South Korea is facing a weather event that exceeds standard seasonal expectations. The emergence of a heat dome—a high-pressure system that traps hot air—suggests a prolonged period of extreme temperatures that can overwhelm urban infrastructure and public health systems, particularly in densely populated southern cities.