The summertime heat has come to South Korea:
A heat wave emergency warning — the highest alert level — was issued for Gyeongsan and Pohang in North Gyeongsang Province at 10 a.m. Sunday, marking the first activation of the alert since it was introduced under the revised advisory system last month.
The warning is issued when a region that has already had a perceived temperature of 35 degrees Celsius or higher for at least two consecutive days is expected to have a perceived temperature of 38 degrees or higher, or an actual temperature of 39 degrees or higher, for at least one more day.
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