'Heavy Rain Warning' Across the Seoul Metropolitan Area... "Very Heavy Rain Around 9 PM"

The Korea Meteorological Administration (KMA) upgraded the heavy rain advisory to a heavy rain warning for the Seoul metropolitan area at 7 p.m. on the 13th. The heavy rain warning for the Seoul metropolitan area is expected to take effect at 9 p.m.

On the 11th, heavy monsoon rain is pouring down, and the water level of Jungnangcheon River, viewed from Ihwa Bridge in Seoul, is rising. Photo by Jinhyung Kang aymsdream@

A heavy rain warning is issued when rainfall is expected to reach 90 mm in 3 hours or 180 mm in 12 hours.

As of 7 p.m., rain is falling at a rate of 10 to 20 mm per hour in the Seoul metropolitan area and Gangwon Yeongseo region.

In the case of Gangwon Yeongseo, a heavy rain advisory is currently in effect.

In the weather update at 7:10 p.m., the KMA explained, "A heavily developed rain cloud band over the central West Sea is moving northeast at 70 km/h, and around 9 p.m., some areas in the Seoul metropolitan area may experience very heavy rain of 30 to 80 mm per hour."

During the night, thunderstorms with rainfall of 30 to 80 mm per hour accompanied by gusts will occur mainly in the central region.

The KMA describes rainfall exceeding 50 mm per hour as "very heavy rain," and it is possible that rainfall could reach the level of "extreme heavy rain."

Since this summer, the KMA has been sending emergency disaster messages when extreme heavy rain occurs. The criteria for sending extreme heavy rain emergency disaster messages are "simultaneous fulfillment of 50 mm in 1 hour and 90 mm in 3 hours" or "72 mm in 1 hour."

By region, very heavy rain is expected from now until the morning of the 14th in Seoul, Incheon, northern Gyeonggi, inland central-northern Gangwon, and mountainous central-northern Gangwon; and from night until the 15th in southern Gyeonggi, inland southern Gangwon, mountainous southern Gangwon, Chungcheong, Honam, and northern inland Gyeongbuk.

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