Central-northern South Korea is experiencing localized showers and extreme heat warnings on Tuesday morning [1, 2].
The combination of intense rainfall and high temperatures creates hazardous conditions for commuters and increases the risk of heat-related illnesses in densely populated urban areas.
Weather caster Wonida of YTN said shower clouds had been affecting the capital region and parts of Yeongseo since the early morning [1]. In Incheon, hourly rainfall intensity reached approximately 20 mm per hour [1]. The most significant impact is expected in northern Gangwon Province, where rainfall could reach a maximum of 60 mm [1].
Despite the rain, the meteorological agency has issued a heat warning for Seoul, eastern Seoul, parts of the capital region, the southern east coast of Gangwon, and various locations in Chungnam [1]. These warnings follow a period of tropical nights, where temperatures in urban centers and coastal areas remained at or above 25 °C [1].
At the time of the broadcast, the perceived temperature in Seoul was approximately 28 °C [1]. Forecasts indicate that the late-summer heat will persist throughout the day. While some reports suggest temperatures around 33 °C [2], other forecasts place the actual high near 32 °C with a perceived temperature reaching 35 °C [2].
High humidity and the lingering effects of tropical nights created the convective clouds responsible for the brief, intense showers [1, 2]. A hot, moist air mass continues to settle over the region, sustaining the heat wave conditions [1, 2].
“Rainfall could reach a maximum of 60 mm in northern Gangwon Province.”
The simultaneous occurrence of heavy localized showers and a heat warning indicates a volatile atmospheric state typical of late-summer convective activity. This pattern puts pressure on urban drainage systems during sudden bursts of rain while the sustained high humidity prevents overnight cooling, increasing the physiological strain on the population in the Seoul metropolitan area.
