Seoul issued its first-ever extreme heat warning on Monday as temperatures surged across the South Korean capital [1, 2].

The unprecedented alert signals a critical escalation in regional weather patterns, posing immediate health risks to millions of residents in the metropolitan area.

Official records show that Seoul's maximum temperature reached 36.7 °C [3]. Meanwhile, the Yeongnam region recorded temperatures around 40 °C [4]. The extreme heat has already led to significant medical emergencies, with 108 heat-related illness cases reported on the previous day [5].

Meteorologists attribute the spike to the influence of Typhoon Dolphin. The approaching storm drove a hot east wind that intensified heat across the western part of the peninsula. Reporter Ko Han-seok said the western regions, including the capital and the Honam region, will become increasingly hot this week [6].

Local officials warned that the heat is not subsiding even as the day progresses. Caster Jung Su-hyun said temperatures in Seoul are not dropping at this time [7].

Residents are advised to limit outdoor activities and monitor vulnerable populations. The extreme heat warning represents a new threshold for the city's climate response system, a necessary measure as the region faces more volatile summer weather.

“Seoul issued its first-ever extreme heat warning”

The issuance of a first-time extreme heat warning in Seoul indicates that historical weather benchmarks are no longer sufficient for public safety. The interaction between Typhoon Dolphin and regional wind patterns created a 'heat dome' effect, demonstrating how tropical cyclones can exacerbate extreme temperatures in areas far from the storm's center.