Heavy Rain in Central Region Again on 15-16th... "Similar Intensity to the Rain on the 8th"

Stationary Front Redevelops on 14-15th
Central Region Affected Night of 15th to 16th, Southern Region on 17th
Precipitation Intensity Similar to 8th, Duration Shorter
Stationary Front Affects Southern Region and Weakens on 13th

On the 11th, when it rained, citizens hurried on their way to work at Gwanghwamun Intersection in Jongno-gu, Seoul. / Photo by Moon Honam munonam@

[Asia Economy Reporter Han Jinju] The stationary front, which had been in a lull since the 12th, is expected to reactivate and bring heavy rain to the central region starting from the night of the 15th.

Although it is not expected to be as severe as the heavy rain on the 8th, which the Korea Meteorological Administration (KMA) described as 'shock and terror,' the ground remains weakened, raising concerns about landslides and other damages.

On the 11th, the KMA held a regular briefing and stated that the stationary front will develop near northern China and the Korea-China border on the 14th and 15th, bringing heavy rain mainly to the central region from the night of the 15th through the 16th.

Compared to the rainfall on the 8th, when 145mm per hour fell in Dongjak-gu, Seoul, the atmospheric instability and moisture content are similar, but the blocking pattern has been resolved, so the stationary front will not remain in one place as long.

Forecaster Lee Kwang-yeon explained, "The intensity of the rain falling in the central region on the 16th will be similar to that on the 8th. Atmospheric instability may be stronger in some areas than on the 8th, and the total precipitable water (total moisture in the atmosphere) is 70mm, the same as on the 8th. However, the duration of precipitation, another factor determining rainfall amount, will be shorter than on the 8th because the flow moving eastward will be smoother."

As the weekend approaches, the rain will gradually subside. The stationary front, which lingered over the Chungcheong region until the afternoon of the 12th, will move southward to the southern regions by the morning of the 12th and gradually weaken. This is due to the supply of cold and dry air from the north weakening the subtropical air mass.

Expected rainfall by the 12th is 30-120mm in southern Chungcheong, Jeolla, and northern Gyeongbuk regions; over 120mm in some parts of Jeolla; 10-60mm in northern Chungcheong and southern Gyeongbuk; and less than 5mm in Seoul, Incheon, and northern Gyeonggi.

On the 14th, a large amount of moisture will flow in from the southwest, possibly causing scattered showers in the central inland areas. This is due to the blocking high pressure, which caused the heavy rain from the stationary front, dissipating after the 13th, allowing a medium-scale low pressure system to develop in the west and bring hot and humid air to the central region.

Forecaster Lee said, "As hot and humid moisture flows into the central region, precipitation is likely to occur mainly around the Seoul metropolitan area. However, the variability is high, and the system causing development is small in scale, so predictability is low and the rainfall will be localized."

The reactivated stationary front is expected to affect the central region from the night of the 15th to the 16th, and the southern region from the 17th. After the 19th, the stationary front is expected to reactivate from the north, possibly bringing rain to the Seoul metropolitan area and Gangwon Yeongseo region.

Forecaster Lee urged, "Since heavy rain fell mainly in the central region from the 8th to the 11th, the ground is weakened and flood prevention facilities have accumulated damage. Even a small amount of rain could cause greater damage, so thorough preparation in advance is necessary."

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