"Up to 150mm" Water Bomb Hits Seoul Metropolitan Area... Heavy Rain Again in Southern Regions on the 30th

Heavy rain has fallen in various areas, mainly in Seoul and the central region, and strong rain is forecasted to pour in the southern region on the 30th.

The Korea Meteorological Administration analyzed that on the 29th, heavy rain of 30 to 60 mm per hour and up to 150 mm fell mainly in the central region including the Seoul metropolitan area. As of 6 p.m. that day, a heavy rain advisory was issued for parts of Daejeon, Sejong, Gyeonggi, Gangwon, Chungbuk, Chungnam, Jeonbuk, and Gyeongbuk.

On the 29th, when a 'heavy rain warning' was issued in the metropolitan area, citizens were walking with umbrellas near Gangnam Station in Seoul, where flood damage occurred last year. Photo by Jinhyung Kang aymsdream@

The accumulated rainfall from midnight to 5 p.m. that day was 99.5 mm in Taean, Chungnam; 95.0 mm in Chuncheon, Gangwon; 79.0 mm in Hwaseong, Gyeonggi; 76.9 mm in Incheon; and 67.0 mm in Seoul. The maximum hourly rainfall was recorded as 59.4 mm in Seosan, Chungnam, and 59.0 mm in Chuncheon, Gangwon.

This rain showed a pattern of heavy localized downpours as rain clouds intensified while being drawn into a low-pressure system from the west along a stationary front formed at the edge of the North Pacific high pressure system affecting Korea.

When the stationary front merges with the high pressure, light rain falls for a long time, but a low-pressure system bringing dry air from the upper north periodically passes around the stationary front, causing strong rain to move up and down between the central and southern regions.

In the central region, very heavy rain of 30 to 60 mm per hour accompanied by gusts, thunder, and lightning is expected in various places until tonight. Although rain has subsided in some areas including the Seoul metropolitan area, a large amount of water vapor continues to flow in from the West Sea, so there is a strong possibility that heavy rain will return.

From the 30th, as the stationary front moves southward, heavy rain is expected in the southern region. In the Gwangju and Jeonnam areas, which have already experienced a round of heavy rain, 100 to 200 mm of rain is expected by the 30th, with some areas forecasted to receive very heavy rain of up to 250 mm.

The expected rainfall from the 29th to 30th is 50 to 120 mm (up to 150 mm or more) in Seoul, Incheon, southern Gyeonggi, inland and mountainous areas of Gangwon, Chungcheong region, and Gyeongsang region; 100 to 200 mm (up to 250 mm or more) in northern Gyeonggi, Jeolla region, and Jeju Island; and 20 to 80 mm in the eastern coast of Gangwon, Ulleungdo, and Dokdo. Very heavy rain of 30 to 60 mm per hour is forecasted in the southern region until noon on the 30th and in Jeju Island until night on the 30th.

This content was produced with the assistance of AI translation services.