© YonhapA bridge is destroyed in Hongcheon Country in Gangwon Province where 343 millimeters of rain fell overnight.
While more rain - falling at 30 to 80 millimeters per hour -- is expected in Seoul, Gyeonggi and most other parts of the country until Wednesday, a typhoon is fast approaching waters off Jeju Island, according to the Korea Meteorological Administration.
"The monsoon rain front will become stronger, influenced by water vapor from the typhoon and bring more torrential rain to some regions," said KMA official.
A 86-year-old man went missing after falling into a flooded stream in Cheongju, North Chungcheong Province, which received over 100 millimeters of rain between midnight Sunday and 8 a.m. Monday.
A bridge was destroyed and four mountain hikers were marooned by a flood in Hongcheon, Gangwon Province, where 343 mm of rain fell overnight.
Comment: Some other severe hailstorms from around the world in recent months include:
- Huge hail pounds central US
- At $1.4 billion, recent hailstorm could be most expensive in Colorado history
- Lanzarote in the Canary Islands turns white after freak hail shower
- Unusual hailstorm blankets Central Mexican city with up to 50 centimeters of ice
- Freak hailstorm rips through town in New South Wales, Australia
- Freak hailstorm hits drought stricken Bloemfontein, South Africa
- Mounds of hail pile up after storm pounds Safford, Arizona
It is likely that atmospheric dust loading from increased comet and volcanic activity is contributing to these 'exceptional' or 'freak' hailstorms, the cooling effect of which causes ice crystals to form.