Seoul expanded a citywide heat-wave extreme warning on Wednesday after temperatures in several districts climbed toward 40°C [1].
The expansion of the warning reflects a critical public health risk as the city faces dangerous thermal conditions that can lead to heatstroke and systemic infrastructure strain.
Authorities said that the Gangnam district reached a temperature of 39.2°C [1]. Similarly, the Guro district recorded a temperature of 39°C [1]. These figures prompted the decision to elevate the alert status across the entire metropolitan area to ensure the safety of residents and commuters.
The extreme heat warning, known as the 폭염 중대경보, is designed to trigger emergency protocols throughout the city. These measures typically include the opening of cooling centers and increased monitoring of vulnerable populations, such as the elderly, who are most at risk during prolonged heat spikes.
Local officials said citizens should limit outdoor activities during the peak heat of the day. The city continues to monitor weather patterns to determine how long these extreme temperatures will persist across the region [1].
“Seoul expanded a citywide heat-wave extreme warning on Wednesday”
The issuance of a citywide extreme warning indicates that heat is no longer isolated to specific pockets of the city but has become a systemic urban crisis. Such temperatures in a densely populated metropolis like Seoul exacerbate the 'urban heat island' effect, where concrete and asphalt trap heat, potentially prolonging the duration of the heatwave and increasing the load on the city's electrical grid.



