Tuesday, August 4, 2020

Floodwaters inundate South Korea as country braces for impacts from Hagupit

Updated Aug. 4, 2020 11:59 AM










Officials issued a "serious" crisis warning in South Korea on Monday after a weekend of heavy rainfall caused floodwaters to overtake cities across the region. This won't be the last round of downpours for the country as Hagupit, once a typhoon in the East China Sea, will reach the region by the second half of the week as a tropical rainstorm.

A storm system brought heavy rainfall to much of the Korean Peninsula this past weekend and into the start of the week, including in the capital city of Seoul, where the Han River spilled into the streets on Monday morning.

As of Tuesday, the death toll rose to 13 with another 13 still missing in South Korea due to the heavy rainfall. According to KBS News, over 1,000 people have been impacted by the flood event.

On Monday, four people were rescued after a landslide sent mud and debris into a factory in Pyeongtaek in northwestern South Korea. One local news outlet reported that three people were found unconscious and one was seriously injured.

Streets were turned into raging rivers in the city of Cheonan after 183 mm (7.20 inches) of rainfall fell in the city from Sunday into Monday. Another 190 mm (7.48 inches) of rainfall was reported in the city of Chuncheon in just 24 hours.

Residents in Icheon City were forced to evacuate their homes as the nearby Bonjuk Reservoir began to collapse, according to local reportsNearly one thousand people have been forced from their homes across the region due to numerous instances of flooding and landslides.

Residents across the Korean Peninsula are bracing for another round of widespread heavy rainfall that will spread over the area by the middle of the week.

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Hagupit slammed into eastern China as a typhoon early Tuesday morning and will continue to be pulled north by a nontropical system that has been sitting over northern China and across the Korean Peninsula into Wednesday.

Hagupit will track over the mountainous terrain of Anhui, Jiangsu and Shangdong, China, into Wednesday, which will work to rip apart the system. This will limit impacts in these prefectures to areas of rain and thunderstorms.

As Hagupit is absorbed by the non-tropical system, it will strengthen over the Yellow Sea, which will help to produce widespread flooding downpours across the Korean Peninsula.

"Widespread rainfall of 100-200 mm (4-8 inches) is expected across North Korea later Wednesday into Thursday, local time," stated AccuWeather Lead International Meteorologist Jason Nicholls.

Nicholls added that an AccuWeather Local StormMax™ of 250 mm (10 inches) will be possible in areas that receive the heaviest rainfall, especially into the higher elevations.

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Rainfall totals of 50-100 mm (2-4 inches) will be common across South Korea. However, if the storm system shifts farther south, higher rainfall totals can threaten northern parts of the country, including Seoul.

Disruptive flooding already caused disruptions across South Korea in late July after a storm system combined with high tide to inundate the city of Busan along the southern coast.

It's not unusual for heavy rain to make an appearance across the region during July and August. The front that produces the rainy season across southern China and Japan during the late spring and early summer typically shifts north by the end of the summer.

Keep checking back on AccuWeather.com and stay tuned to the AccuWeather Network on DirecTV, Frontier and Verizon Fios.

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