South Korea is predicted to suffer severe cold snaps this winter as it has in recent years.
The chilly weather is attributed to ice melting in the Arctic sea from early summer. Cold air then travels south on jet streams.
The melting ice also increases the accumulation of vapor and snowfall.
When snow is piled and the ground is frozen in Siberia, the Siberia high pressure system gains strength and has a great effect on the Korean Peninsula in winter.
Cold snaps from the North Pole will begin affecting South Korea from early December and reach their peak in January next year.