South Korea has introduced a new severe heat warning to its national alert system to combat climate-change-driven extreme temperatures.
The expansion of these alerts is critical as the frequency and intensity of extreme heat events increase across the peninsula. By refining the thresholds for different levels of danger, the Ministry of Environment aims to provide more precise guidance to protect citizens from heat-related illnesses.
The existing system relies on the daily maximum perceived temperature to determine the level of risk. A heat advisory is issued when the perceived temperature is 33 °C or higher for more than two days [1]. This level serves as the initial alert for the public to monitor their health, and limit outdoor activities.
When the risk escalates, the government issues a heat warning. This occurs when the perceived temperature reaches 35 °C or higher for more than two days [1]. These warnings signal a more dangerous environment that requires stricter precautions to prevent heatstroke and other medical emergencies.
Due to the evolving nature of the climate crisis, the government added a severe heat warning this year [1]. This new tier addresses the most extreme temperature spikes that exceed the traditional warning thresholds. The addition allows the state to trigger more aggressive emergency responses and public safety measures when temperatures reach critical levels.
"'폭염주의보'는 일 최고 체감온도가 33도 이상인 상태가 이틀 넘게 이어질 것으로 보일 때 내려집니다," a YTN anchor said [1]. This translation indicates that heat advisories are deployed when the daily maximum perceived temperature is expected to remain at or above 33 °C for over two days.
Regarding the higher tier of alert, the YTN anchor said, "'폭염경보'는 체감온도 35도 이상 이틀 넘게 지속할 때 발령됩니다" [1]. This confirms that heat warnings are triggered when the perceived temperature stays at 35 °C or higher for more than two days.
“South Korea has introduced a new severe heat warning to its national alert system.”
The creation of a 'severe' tier suggests that previous benchmarks for 'extreme' heat are no longer sufficient to describe current weather patterns. As perceived temperatures rise due to humidity and global warming, the South Korean government is shifting from a reactive posture to a more granular risk-management strategy to prevent mass casualties during summer heatwaves.
