KMA: "Heavy and Intense Rain Continues Today in Chungcheong and Honam, Extending to Namhae Tomorrow"

Heavy Rainfall Over 250mm Expected This Weekend in Chungcheong and Honam
Extremely Dangerous Situation. Upper-Level Trough to Affect Weather Day After Tomorrow
Heavy Rain Forecast for Central Region, North Jeonbuk, and Northern Gyeongbuk

The stationary front is fluctuating north and south, bringing heavy rain across the country for the time being. Today, heavy and intense rain is forecasted for Chungcheong and Honam regions, and tomorrow it will extend to the South Sea.

[Image source=Yonhap News]

On the 15th, the Korea Meteorological Administration (KMA) announced the forecast until the 17th, stating that heavy and intense rain will continue mainly in Chungcheong and Honam.

In particular, the monsoon is not expected to end even after the 17th, with rain forecasted nationwide until the 19th, and in Jeju until the following weekend.

With significant rain damage already occurring in Chungcheong and southern regions, there is a high concern for additional damage. Accordingly, the KMA emphasized that it is a "very dangerous situation."

As of 11 a.m. on this day, heavy rain warnings were issued in parts of northeastern Gyeonggi, inland Gangwon Yeongseo, mountainous Gangwon Yeongseo, Chungcheong, Honam, and inland Gyeongsang, with rainfall rates of 10 to 30 mm per hour. Most of the areas under heavy rain warnings are at the alert level of a warning.

According to the KMA, cold and dry air blowing from behind a low-pressure circulation located north of Korea is colliding with warm and humid air in the south, causing a strong development of rain cloud bands along the boundary line.

This situation is expected to remain largely unchanged throughout the day, with the stationary front continuing to stretch over Chungcheong and Honam, bringing a considerable amount of rain.

Weather Advisory Status. [Photo by Korea Meteorological Administration]

From dawn to night on the 16th, the intensity of the cold and dry air moving south from the north will remain the same, but as the North Pacific High expands its influence, rain cloud bands will strongly redevelop not only over Chungcheong and Honam but also along the southern coast.

On the 17th, as the North Pacific High further expands its influence and a pressure trough enters the upper atmosphere behind the northern low-pressure circulation, the stationary front will be repeatedly reinforced.

Accordingly, the KMA expects heavy rain centered on Chungcheong and Honam until the 17th, with periods of intensification and weakening, resulting in significant rainfall.

Looking at the regions and timing of heavy rain depending on the stationary front's position, Chungcheong, Honam (excluding the southern coast), southern inland Gangwon, mountainous southern Gangwon, and northern inland Gyeongbuk are expected to experience thunderstorms with gusts producing 30 to 60 mm per hour at times until the 16th.

From dawn to night on the 16th, such strong thunderstorms will also occur in Jeonnam, northern inland Gyeongbuk, and other Yeongnam areas, and on the 17th, heavy rain is forecasted for central regions (excluding the east coast), Jeonbuk, and northern inland Gyeongbuk.

The additional rainfall expected until the 16th is 100 to 200 mm in Chungcheong, Jeonbuk, Jeonnam (excluding the southern coast), and northern inland Gyeongbuk; 30 to 80 mm in Gyeonggi, inland Gangwon, mountainous Gangwon, southern coast of Jeonnam, Yeongnam (excluding northern inland Gyeongbuk), southern Jeju, mountainous Jeju, Ulleungdo, and Dokdo; and 5 to 40 mm in Seoul, Incheon, eastern coast of Gangwon, and Jeju (excluding southern and mountainous areas).

Areas with particularly heavy rainfall include southern Chungnam, central and southern Chungbuk, Jeonbuk, northern Jeonnam, northern inland Gyeongbuk with over 250 mm; southern coast of Jeonnam, Gyeongnam, and mountainous Jeju with over 150 mm; and inland southern Gangwon, mountainous southern Gangwon, and southern Gyeongbuk with over 100 mm.

Although variability remains high, the expected rainfall on the 17th is 30 to 80 mm in central regions (excluding eastern Gangwon), Jeonbuk, and northern inland Gyeongbuk, with some areas receiving over 120 mm.

Rain is also forecast nationwide on the 18th and 19th.

On the 18th, a tropical depression moving toward southern China and the North Pacific High will cause strong southerly winds from the equator to blow into Korea, bringing hot and humid air that is expected to develop a low-pressure system in the southwest of Korea.

In this case, the stationary front may expand and move northward due to the hot and humid air, causing rain.

From the 19th, as the North Pacific High shifts southward, the stationary front will also move south, bringing rain mainly to Jeju and the southern coast until the 22nd.

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