Mangosteen is expected to cross the western part of Guangdong Province. What typhoon is more ferocious than summer?

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 Mangosteen is expected to cross the western part of Guangdong Province. What typhoon is more ferocious than summer?


Peng Mei news learned from the China Meteorological Administration that typhoon mangosteen is expected to land along the coast from Taishan to Xuwen, Guangdong Province, from the afternoon of 16 to the night (14-16, 45-52 m/s, strong typhoon or super typhoon), and will pass through western Guangdong and southern Guangxi, gradually weakening in intensity, and will weaken in Yunnan on 18. It is tropical depression.

Typhoon No. 22 of this year, mangosteen, weakened to a strong typhoon on the northwest of Luzon Island in the Philippines today (15) morning. It moved to the northeast of the South China Sea around 9:30 a.m. and its center was 950 kilometers south-east of Yangjiang River, Guangdong Province at 10 oclock. It was 18.3 degrees north latitude and 120.3 degrees east longitude. The maximum wind near the center was 15:30 a.m. Class I (48m/sec), minimum pressure 945 hPa, radius 380-500 km, radius 100-220 km, radius 60-80 km.

Up to now, typhoon mangosteen is similar to typhoon rainbow in 2015 in terms of storm intensity forecast. The 22nd typhoon Rainbow landed on the coast of Potou District, Zhanjiang City, Guangdong Province on October 4, 2015 with super typhoon level (16, 52 m/s). Affected by the storm, rainfall in some parts of Western Guangdong reached 300-400 mm, gust 13-17; Tornadoes appeared in the periphery of the typhoon, resulting in more serious casualties in Guangzhou and Foshan and large-scale blackouts. Typhoon Rainbow caused 5 million 500 thousand people in Guangdong, Guangxi and other places, and more than 20 people died.

After the landing of the super typhoon Rainbow in 2015, the Zhanjiang Olympic Sports Center was seriously damaged. Zhanjiang Evening News

I guess a lot of friends will be curious, this is mid-September, many places in the North morning and evening temperature is only a dozen degrees Celsius, very cold! How powerful is typhoon in autumn? ?

Dont worry, lets talk about the autumn typhoon carefully.

The number is many: summer and autumn alternates, is still the typhoon active period.

September is still the typhoon season in China. On average, there are nearly five typhoons in September, and about 1.8 typhoons landed in China, and typhoons landed in Guangdong, Taiwan, Fujian and Hainan. Although there are less typhoons than the average of six typhoons in August in summer, it is also necessary to pay close attention to the impact of typhoons on rainstorms and gales. Imperial work reduces casualties and property losses. Compared with typhoons generated in summer, autumn typhoons have three major characteristics: south-facing, powerful and causing more serious losses.

1981-2010 years of typhoon generation and landfall in Northwest Pacific and South China Sea, Chinas Li Hui mapping

This is mainly due to the warming of the SST caused by the northward-southward movement of the suns direct point during the transition from summer to autumn. Higher SST means more heat is accumulated and more energy is provided to typhoons. In addition, the cold air in the North tends to be active in autumn. If typhoon meets cold air, it may trigger stronger precipitation. It can be seen that autumn typhoon is also a ruthless role, so we can not relax our vigilance.

Landing in China in September is the strongest Chinese weather map.

Strong intensity: autumn is more likely to generate super typhoon.

Li Huis mapping of the average number of typhoons in the Northwest Pacific and the South China Sea in the past 1981-2010 years and the number of landings in China

1981-2017 summer, autumn typhoon and super typhoon total Li Hui mapping

Question: why is typhoon autumn so strong?

Autumn is prone to strong typhoons or strong typhoons, which is related to warmer sea temperatures. When the summer moves to the autumn, the sun moves from north to south, causing the sea surface temperature to be warmer. This is conducive to the accumulation of more heat by the ocean, thus providing more energy for typhoons. For example, mangosteen is so strong because it passes through a sea surface temperature of almost 30 degrees Celsius, and high sea temperature provides sufficient energy for its development.

In addition, stronger typhoons are more likely to occur in autumn, with the suns direct point moving southward and warmer sea temperatures providing sufficient energy for typhoons. The autumn typhoon will also join forces with the cold air from the North south. The two typhoons will be cold and warm, and the air pressure will be high and low. When they meet, the wind in the affected area will be strong and the precipitation will be stronger.

Impact: landing point is more South and more serious.

The subtropical high moved southward after September. Compared with the summer typhoon, the autumn typhoon preferred South China. According to historical data, the autumn typhoons landed in China from 1949 to 2017 mainly occurred in Hainan (30%), Guangdong (28%) and Taiwan (24%). This year, the typhoon Bai Li Jia landed in Zhanjiang, Guangdong, and mangosteen will also land in Southern China. But this summer, typhoon No. 10 Amby, No. 12 Skylark and No. 14 Capricorn landed in the area of Jiangsu and Zhejiang, north of South China.

China weather map for autumn typhoon landing site in 1949-2017

The typhoon track is mainly affected by the subtropical high. After entering autumn, the subtropical high begins to retreat eastward and move southward, and its position is gradually southward, so the landing point of the typhoon is more southward.

September 14, 2018 14 hours 500hPa height field central meteorological station map

In addition, the autumn typhoon caused more serious damage to Chinas agricultural production, and the cold air is more active at this time, if there is a typhoon, cold and warm air intersection, more likely to produce strong rainfall, heavy rainstorms will damage the leaves of crops, grain shedding moldy rot, or even completely destroyed, resulting in serious yield reduction or cut-off. Accept.

In 2013, the autumn typhoon fitt brought strong wind and rain, and the peasants suffered heavy losses.

In view of the current weather situation, the subtropical high is still relatively stable for a period of time, and the activity of typhoons on the south side of the subtropical high is active. After the influence of mangosteen, the possibility of new typhoons can not be ruled out. At a recent September regular meeting of the China Meteorological Administration, experts said that this autumn, typhoons in the Northwest Pacific and South China Sea were still active, with 12 to 13 typhoons expected to occur, more than in the same period of the year. The source of this article: surging news editor: Zhang Xianchao _NN9310

In view of the current weather situation, the subtropical high is still relatively stable for a period of time, and the activity of typhoons on the south side of the subtropical high is active. After the influence of mangosteen, the possibility of new typhoons can not be ruled out. At a recent September regular meeting of the China Meteorological Administration, experts said that this autumn, typhoons in the Northwest Pacific and South China Sea were still active, with 12 to 13 typhoons expected to occur, more than in the same period of the year.