It's late autumn, why are there still typhoons? Autumn typhoons are more "violent" than summer typhoons

Cold air has "visited" repeatedly. After enjoying nature's "full 30-5 activities", according to the Central Meteorological Observatory, the tropical depression east of the Philippines has strengthened into this year's No. 20 typhoon "Trami" in the early morning of October 22.

Typhoon Trami path probability forecast map Source: China Weather

The topic "Will Typhoon Trami Affect my country" has become a hot search topic, sparking discussion among netizens. In many people's impressions, typhoons often occur in midsummer. Now that late autumn has arrived, why are there still typhoons? What impact will this typhoon have on my country? Mao Yanjun, a senior engineer at the Zhejiang Provincial Climate Center, accepted an interview with Chao News and gave a scientific popularization.

Typhoon Trami is a big crybaby

The powerful "Capricorn", the raging "Prasang"... the typhoons that hit this year seem to have their own "exclusive personalities". Mao Yanjun told reporters that judging from the cloud map, the new typhoon embryo is a "big head" with abundant water vapor around it, and it may be a "crybaby".

According to China Weather Network, the typhoon may affect my country's southeastern seas and coastal areas from the 25th to the 27th. Mao Yanjun said that the coverage area may reach the size of several provinces, and the rain should not be small wherever it passes.

According to the forecast, this typhoon may have a wind and rain impact on my country in the future. Xin Xin, a meteorological analyst at China Meteorological Channel, wrote that the typhoon is likely to move westward in the later period, which may cause rainfall in southern my country. In particular, due to the terrain effect, it is very likely that heavy rain or torrential rain will occur in eastern Taiwan. The typhoon may weaken overall in the later period, and its impact on Zhejiang remains to be seen.

It is understood that cold fronts will continue to appear in turn in the coming period, and together with Trami, they will have a combined impact. In the next five days, strong winds will occur in the Bashi Channel, the sea east of Taiwan, the Taiwan Strait, most of the South China Sea, the Beibu Gulf, the Qiongzhou Strait, the coast of Taiwan, and the coast of South China.

Autumn typhoon is a powerful "tough guy"

In September this year, typhoons "clustered" and now it's almost November, and there are still typhoons. In this regard, Mao Yanjun said that these are all normal phenomena. "Typhoons may occur throughout the year, but there are more typhoons from July to the first half of October, which have a great impact on my country. There are fewer typhoons in other periods, and the probability of affecting my country is lower, which may cause less attention."

In meteorology, typhoons are divided into summer typhoons and autumn typhoons according to the time of their formation. Typhoons generated from June to August are generally called summer typhoons, and typhoons generated from September to November are called autumn typhoons.

According to statistics, although the number of autumn typhoons is "equal" to that of summer typhoons, autumn typhoons are more ruthless. "Autumn typhoons tend to interact with cold air, and their paths are relatively southward. They are powerful, have a wide impact range, and cause more serious damage." Mao Yanjun added, "It is now late autumn, and there will be fewer and fewer typhoons in the future."

The number of typhoons generated and landed in my country in the Northwest Pacific and South China Sea Source: China Weather

There are not only summer typhoons and autumn typhoons, but also winter typhoons. According to statistics from China Weather Network, the latest typhoon was Typhoon Soulik, No. 23, 2000, which was formed at 08:00 on December 30. Typhoons that land in my country in winter are very rare. Since 1949, there have been only two, namely Typhoon Irma, No. 27, 1974, and Typhoon Nanmadol, No. 28, 2004, both of which landed in my country in December.

"According to the current generation path, this typhoon will not land in Zhejiang." But Mao Yanjun also reminded everyone, "Whether in terms of intensity or impact, the 'strength' of autumn typhoons should not be underestimated, and citizens need to continue to pay attention to the latest typhoon forecast information."