
According to the Korea Meteorological Administration (KMA), the warning was issued around 10 a.m. for the capital as well as surrounding Gyeonggi Province, as scorching heat continues nationwide with daytime highs soaring up to 36 degrees Celsius.
The highest-level warning, first issued this season earlier this month before being temporarily eased to an advisory, returned about less than two weeks later.
Such a warning is issued when "feels-like" temperatures remain above 35 degrees Celsius for at least two consecutive days or when severe damage is anticipated due to extreme heat.
But the capital is expected to endure even more sweltering temperatures this weekend, with daytime highs soaring up to 38 degrees.
The KMA forecasts that unbearably hot and humid weather will persist at least until early next month, with temperatures staying above the seasonal average in most parts of the country.
Meanwhile, this summer's unprecedented heat wave is already breaking records. According to the KMA, the average daily temperature for the first 22 days of this month stood at 24.4 degrees, the highest for the period since the country's meteorological observations expanded nationwide in 1973. The average daily highest temperature during the period also set a record at 29.4 degrees.
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