Three tropical cyclones approached Hong Kong in August, the Hong Kong Observatory issued the second typhoon No. 8 this year with higher than normal rainfall

Just after August, the Observatory reviewed the weather of the previous month today (2nd), describing it as "a rainy August".

According to the Observatory, the total rainfall last month was 614.8 mm, about 36% higher than the normal value of 453.2 mm.

However, the accumulated rainfall for the first eight months of the year was 1,827.8 millimetres, still about 5% below the normal figure of 1,921.5 millimetres for the same period.

In addition, there were three tropical cyclones approaching Hong Kong last month, including Tropical Storm Mulan and Severe Tropical Storm Saddle. Saddle caused the Observatory to issue the second Gale or Storm Signal No. 8 this year.

▼The Observatory issued a yellow rainstorm warning on August 3▼

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The Observatory said that mainly affected by the rainfall related to tropical cyclone activities in the northern part of the South China Sea, Hong Kong was wetter than normal in August this year, with a total rainfall of 614.8 mm, about 36% higher than the normal value of 453.2 mm.

In terms of temperature, the average temperature in August was 28.8 degrees, which was similar to the normal value of 28.7 degrees.

Due to the record-breaking high temperature in July, Hong Kong's summer from June to August this year was much hotter than normal, with an average temperature of 29.2 degrees, one of the fourth highest for the same period on record.

▼The situation under the tropical depression No. 1 typhoon on August 4▼

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8.3 Tropical depression pressed the Hong Kong Observatory and issued the No. 1 typhoon

Regarding tropical cyclones, a total of three tropical cyclones approached Hong Kong in August, necessitating the issuance of a tropical cyclone warning signal by the Observatory.

Among them, an area of ​​low pressure developed into a tropical depression over the northeastern part of the South China Sea on the evening of August 3, and moved west-northwestward to the area east of the Pearl River Estuary.

After making landfall along the coast of Huidong, the tropical depression weakened into a low pressure area over the inland Guangdong on the afternoon of August 4.

Affected by the tropical depression and its remnant low pressure area, Hong Kong was mainly cloudy from 3 to 5 with occasional heavy showers and squally thunderstorms.

During the three-day period, more than 100 mm of rainfall was generally recorded in Hong Kong, and the rainfall in the eastern part even exceeded 200 mm. The Observatory issued the Standby Signal No. 1 at 10:10 pm on the 3rd.

In the case of rain, the temperature at the Observatory dropped to the lowest 24.5 degrees of the month on the 5th.

▼August 9, Xinghua Village will be ready for Tropical Storm Mulan▼

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Typhoon Signal No. 3 was hoisted at the "Mulan" Storm Observatory

In addition, under the influence of an area of ​​low pressure in the central part of the South China Sea, Hong Kong became mainly cloudy on 8th with occasional showers and squally thunderstorms.

The low-pressure area gradually developed into a tropical depression in the early morning of the 9th, and was later named Mulan.

The observatory said that Mulan moved generally northward and intensified into a tropical storm during the day, then turned to the northwest.

After passing over the northeastern part of Hainan Island and the southern tip of the Leizhou Peninsula, Mulan entered the Beibu Gulf on the evening of the 10th, made landfall in northern Vietnam the next day and weakened into a low pressure area inland.

Affected by Mulan, Hong Kong was windy on the 9th and 10th. The outer rainbands of Mulan also brought heavy showers, violent gusts and thunderstorms to Hong Kong from time to time. A total of more than 100 mm of rainfall was recorded in the general area of ​​Hong Kong. Lantau Island Some areas received more than 200 mm of rain.

The Observatory also issued the No. 3 strong wind signal at 11:25 am on the 9th.

▼August 9th under the typhoon No. 3 wind and rain▼

▼At noon on August 24, the "Saddle" approached the Observatory and issued the No. 3 typhoon▼

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The Observatory issued the second typhoon signal No. 8 this year during the severe tropical storm "Ma Saddle"

As for the 21st of last month, an area of ​​low pressure developed into a tropical depression over the sea east of Luzon and was later named Saddle.

Saddle gradually intensified into a severe tropical storm early on the 23rd and moved across northern Luzon.

After entering the northeastern part of the South China Sea that night, Maan took a roughly northwest path across the South China Sea the next day and moved towards the western coast of Guangdong.

Ma'an made landfall near Maoming on the morning of the 25th and weakened into a tropical storm.

Affected by the sinking air in front of the saddle, the weather in Hong Kong was generally fine and very hot at the beginning of the 24th.

As the saddle approached, the weather in Hong Kong turned cloudy and winds strengthened significantly later that day. The Observatory issued the second Gale or Storm Signal No. 8 of the year that night.

On the evening of the 24th and at the beginning of the 25th, strong to gale force winds prevailed in Hong Kong, with occasional storms from offshore and highlands.

As Saddle moved away from Hong Kong and gradually weakened inland, local winds eased rapidly during the day on the 25th.

The outer rainbands of Ma Saddle also occasionally brought squally and heavy showers to Hong Kong, with more than 50 millimetres of rainfall recorded in many areas.

▼On August 24th, the wind increased after the night in Xinghua Village▼

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▼The situation in Xinghua Village and Tai Po when Typhoon No. 8 took effect on the morning of August 25▼

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Autumn Weather｜The Observatory predicts that La Niña will continue to cause two factors to cause Hong Kong to pass the "Hot Autumn" this year. Super Typhoon Xuan Lannuo or Mangkhut is expected to make a sharp turn this year. There is a reason for the saddle typhoon｜The Observatory analyzes that the wind is not as expected 4 There is a reason for the rapid fall of the Mulan typhoon after 9:00 | Why did the "wind force reach level 8" but the typhoon signal No. 8 was not hoisted?

One article to see clearly the Observatory explains the Qixi typhoon | The path is erratic and the reason for Lin Chaoying's dismantling: so weak that the wind is not sure about the center