The sea surface temperature near Japan in September was about 1.7 degrees higher than normal, the ‘highest ever’.
Japan Meteorological Administration: “Two typhoons in September, tied for the lowest ever… due to summer heat wave and high pressure.”
The sea surface temperature near Japan in September was about 1.7 degrees higher than normal, the ‘highest ever’.
(Tokyo = Yonhap News) Correspondent Park Sang-hyeon = The Asahi Shimbun reported on the 1st that two typhoons occurred in the Pacific Ocean last month, the lowest number since 1951 when the Japan Meteorological Agency began compiling related statistics.
The Japan Meteorological Agency considers a tropical cyclone created in the North Pacific and South China Sea to be a typhoon if it records a maximum wind speed of 17 meters per second or more.
According to the Korea Meteorological Administration’s analysis of typhoons from 1991 to 2020, the average monthly number of typhoons occurred in August, which was the highest at 5.7, and September was the second highest at 5.0.
However, this year, the 13th typhoon ‘Winyok’ occurred on the 5th of last month and brought heavy rain to the Japanese archipelago, and the 14th typhoon ‘Goinu’ was confirmed in the sea near the Philippines on the 30th.
The two typhoons in September are the joint fewest in Japan Meteorological Agency observation history. Two were recorded each in 1951, 1973, and 1983.
Regarding this, the Japan Meteorological Agency pointed out that this appears to be the result of the Pacific high pressure that caused this summer’s heat wave maintaining its power for a long time.
In particular, there are many cases of typhoons occurring in the coastal waters of the Philippines when monsoons and trade winds collide, but this year, it was analyzed that high pressure affected this area and suppressed the occurrence of typhoons.
In addition, the Korea Meteorological Agency reported that while typhoons did not occur for more than 15 days, sea water was not mixed and the sea surface temperature near Japan became higher than usual.
In relation to this, the Mainichi Shimbun reported that the sea surface temperature near Japan last month was about 1.7 degrees higher than normal, which is certain to hit the highest since observations were made in 1928.
Previously, the highest was 0.8 degrees higher than the average in 1999 and 2010.
The sea surface temperature in southeastern Hokkaido is predicted to be 21.8 degrees in September, which is 3.8 degrees higher than normal.
The sea surface temperature near Japan was the highest ever in August.
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Sanghyun Park
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2023-10-01 00:23:10