On Thursday the 9th, spring rain is forecast nationwide.
This rain will begin around dawn in the Jeonnam region and Jeju Island and is expected to expand nationwide during the morning.
In particular, heavy rain of 20–30 mm per hour is expected to pour down, mainly along the Jeonnam coast, the Gyeongnam south coast, near Jirisan Mountain, and on Jeju Island.
Over the two days through the 10th, Jeju Island is forecast to see 50–100 mm of accumulated rainfall. Areas with strong topographic effects, such as mountainous regions, could see more than 250 mm, and the mid-mountain and southern regions could be hit by more than 180 mm of heavy rain.
Northern Jeju Island and the Gwangju–Jeonnam region are also expected to receive 50–100 mm of rain. Some areas, including the Gyeongnam western south coast and near Jirisan Mountain, will see more than 120 mm.
Expected rainfall in Daejeon, Sejong, Chungnam, Ulsan, and inland Gyeongnam (excluding areas near Jirisan Mountain) is 30–80 mm, and in Seoul, Incheon, Gyeonggi, inland and mountainous Gangwon, the northern Gangwon east coast, Chungbuk, Daegu, Gyeongbuk, Ulleungdo, and Dokdo it is 20–60 mm. The West Sea's five islands and the central and southern Gangwon east coast are forecast to see 10–40 mm of rain.
Tomorrow morning's low will be 3–12 C, and the daytime high will be 11–18 C. As atmospheric dispersion improves, fine dust levels will remain at the "good" level nationwide.
Winds will be very strong, mainly along the west and south coasts and on Jeju Island. Waves are expected to be very high over most seas.
Waves will run 0.5–3.5 m off the east and south coasts and 0.5–3.0 m off the west coast. In the inner offshore areas within about 200 km of the shoreline, wave heights are expected to reach up to 4.0 m in the South Sea and up to 3.5 m in the East and West Seas.