NighttimeHeat Advisory
"When, due to a heat wave, a daily maximum apparent temperature of 33℃ or higher has been expected to persist for at least two consecutive days, and nighttime minimum temperature are expected to remain at 25℃ or higher for at least one day; provided that threshold shall be 26℃ for coastal and island areas and 27℃ for Jeju."
Gyeonggi-do(Gwangmyeong, Anshan, Bucheon, Hwaseong), Gangwon-do(Flatland of Donghae, Flatland of Samcheok, Flatland of Sokcho, Flatland of Goseong, Flatland of Yangyang, Flatland of Gangneung), Chungcheongnam-do(Asan, Yesan), Seoul(Southwest Seoul), Incheon, Ulleungdo and Dokdo