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The longest rainy season ever... Advent of a heatwave

This year, the rainy season in the central region became the longest rainy season ever. The rainy season in the central region, which started on June 24th, broke the record of “49 days” in 2013, the longest record on August 12th, on the 50th.

The Meteorological Administration said on the 11th that “the rain will fall in Seoul, Gyeonggi-do and Gangwon-yeongseo from the 14th to the 16th due to the congestion front. If the rainy season continues until the 16th, the length of the rainy season in the central region is 54 days, making it the longest rainy season since weather observations began.

Stopped on the 12th, rain pour until the 16th

'Summer Pressure' on the 11th There are places where raindrops fall sporadically in Seoul, northern Gyeonggi, and northern Gangwon, where the rainy season front took a step back as the North Pacific high pressure expanded. By the 11th, it is expected that there will be 20~60mm of rain in Chungcheong-do and Gyeongbuk area, and 5~20mm of rain in southern Gyeonggi and southwestern Gangwon-do.

The rainy season front, which had been withdrawn for a while, comes down again on the 13th. As water vapor continues to be supplied through the south wind from the west sea, the rain cloud zone of the rainy season front is expected to cause a lot of rain in the central region for three days.

Unexpected rain cloud on the south coast... Until the 12th

Although the rainy season front was slightly weakened, a mass of rain clouds suddenly formed on the southern seas caused heavy rain on the southern coast and Jeju on the afternoon of the 11th. (Meteorological Agency)

It is expected that there will be a lot of very strong rain, accompanied by gusts, thunder, and lightning, on the southern coast and Jeju Island until the night of the 11th and the dawn of the 12th, so we need to prepare for safety accidents and rain damage in the coastal area.

The rain cloud zone, which started to appear on the southern seas from the morning of the 11th, was formed by water vapor continuously blowing along the edge of high pressure and colliding with cold air coming from the northwest. An official from the Meteorological Administration said, "Hot and humid air came in along the southwest wind from the lower layer of the atmosphere close to the ground from the south sea, but a cold northwest wind blowing from the Shandong Peninsula came in 5 km above the ground." "The huge high pressure was holding up, so it couldn't move, and the rain cloud continued to form in the southern sea," he explained.

Most of the rain stops on the night of the 11th, but rain continues until the morning of the 12th in Jeolla-do and Gyeongnam areas and until the evening of the 12th in Jeju Island. By the 12th, it is expected to rain 30~80mm in the southern coast of Gyeongsangnam-do and Jeju Island (over 100mm in Jeju Island) and 20~60mm in Jeolla-do and Gyeongnam. Gusts and thunderstorms hit the southern coast and Mount Jirisan.

As hot air and water vapor mix, the atmosphere becomes unstable, and it is expected that 20 to 80 mm of showers will come and go in most areas of the country on the afternoon of the 12th.

Southern heatwave... Summer starts

The heat wave began in the southern region. Gangwon-do, Gyeongsang-do, Jeolla-do, and Jeju-do are expected to have a burning heat up to 35 degrees in the daytime by the 13th, and the temperature is expected to be 1 to 2 degrees higher due to high humidity. Even tropical nights where the temperature does not drop below 25 degrees during the night are also expected to appear. The Meteorological Administration explained, "The temperature has been somewhat low since it rained so far, but if the North Pacific high pressure expands in earnest, a heat wave will appear across the country as soon as the rain stops."



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