La Nina is a weather phenomenon that occurs in the equatorial region of the eastern Pacific. It is named when the sea surface temperature holds at 0.5 degrees below average for three months.
▲ Photo courtesy The Jeju Weekly
It is considered to be the opposite of the El Nino phenomenon that results in warmer temperatures. At the moment, the sea surface temperature in the area is 0.4 degrees lower than average.
When it occurs, temperatures in Korea are usually colder than average. According to the Korea Meteorological Agency report, it is expected that there will be a 50 to 55 percent chance of a La Nina during winter.
▲ Photo by Andrew Elwood
During November and December 2010 the temperature was 3.9 degrees. This is 0.6 degrees lower than normal.
In Korea, there have been 13 La Ninas since 1950, most recently from August 2016 to January 2017 although, it is rare for two La Nina's to occur s close to each other.
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