Rain Forecast Throughout Liberation Day Long Weekend... 'Record-Breaking' Heatwaves to Return Afterwards

Rain is forecasted nationwide during the upcoming three-day Liberation Day long weekend.

Influenced by easterly winds left behind by the dissipated typhoon Chan-hom, Gangwon eastern coast and mountainous areas, as well as the Gyeongbuk eastern coast, are expected to see 10 to 50 millimeters of rain through tomorrow (August 14). Meanwhile, the Gyeongnam southern coast, which has suffered from severe drought, is also expected to receive a welcome 10 to 40 millimeters of rain.

Starting Saturday, August 15, which marks the Liberation Day holiday, a large amount of water vapor left by typhoon Dolphin—which dissipated after passing through China—will flow into the peninsula.

Rain is expected to begin in Jeju on August 15 and expand to most parts of the country between the night of August 16 and August 17, which is a substitute public holiday.

The Korea Meteorological Administration urged thorough preparations, stating that depending on the inflow of water vapor and changes in barometric pressure distribution, some regions could see heavy downpours rather than just welcomed rain.

The rare rain forecast appears to be the result of residual pressure systems from large typhoons that bypassed the Korean Peninsula, disrupting the atmospheric pressure flow around the region.

During the period of typhoon influence, a double heat dome formed as the high-altitude Tibetan High and the North Pacific High below it simultaneously and strongly blanketed the Korean Peninsula.

Consequently, the typhoons were forced to steer toward China or Japan along the edges of the high-pressure systems, but the strong water vapor left behind by the typhoons generated powerful rain clouds.

Typhoon Nangka, the 17th typhoon newly formed, is also expected to move toward the seas east of Japan, making the likelihood of any direct impact on South Korea for the time being low.

Scorching heat is expected to regain momentum after the rain or showers stop.

Daytime temperatures began to rise again starting August 13, and heatwaves and tropical nights are expected to persist through next week as maximum perceived temperatures soar above 33°C (91°F) in most parts of the country.

(Reported by Kim Jiuk | Video by Lee Eui-seon | Graphics by Yook Do-hyun | Produced by SBS Digital News)
※ Please note: This article was translated by AI and may contain errors.