2023-09-07 21:55:03
Beginning on the evening of September 7, heavy rain fell across Hong Kong.Released by the Hong Kong Observatory at 1:15 a.m. on the 8thweather forecastIt refers to the one-hour rainfall of 158.1 millimeters recorded at the Observatory Headquarters from 11:00 to 12:00 midnight on the 7th, the highest since records began in 1884.And according to the Observatory’srainfall data, The cumulative rainfall in the past 24 hours from Tai Po, North District to Luo Wu Pass has exceeded 400 mm. Most of them should be the rain that started to accumulate on the evening of the 7th.
Shenzhen, Guangdong Province, China, which is adjacent to Hong Kong, was also hit by heavy rain. According to the monitoring data of the local automatic weather station, the rainfall in many places in Luohu District exceeded 300 millimeters within six hours. Among them, the Dongmen Street Automatic Station recorded more than 340 mm, and the cumulative 24-hour rainfall exceeded 450 mm. According to news on social networks, a large number of areas in Luohu District were flooded or even without water and electricity.
The torrential rain was caused by the aftermath of Typhoon Haikui, which hit Taiwan last week. After leaving Taiwan, “Sea Anemone” made landfall in Fujian again and then became a depression entering Guangdong.However, its ability to “absorb water” is still strong, and it also receives abundant moisture from the southwest monsoon, resulting in convective clouds“Train Effect”bringing heavy rainfall.
The associated rainbands of “Sea Anemone” greatly affected the Pearl River Estuary area on the evening of the 7th. The Hong Kong Observatory forwarded a red rainstorm warning from a yellow rainstorm within 1 hour and 40 minutes, and then issued a black rainstorm warning signal at 11:05, and issued a landslip warning and a special report on flooding in the northern New Territories before and after.
Many places in Hong Kong were flooded under the heavy rain, especially the North District in the New Territories and the East District on Hong Kong Island. The road surface in Wong Tai Sin District was severely flooded, half of the car body was submerged; the rainwater poured into the MTR station through the stairs, the lobby was in the shape of a waterfall, and there was also water on the platform, which made the Wong Tai Sin Station closed early. The Kwun Tong Line runs between Kwun Tong and Whampoa The train suspended service early. In addition, some entrances and exits of Hong Kong Station, Nanchang Station, Chai Wan Station and Sheung Shui Station were closed due to flooding; road flooding and heavy rain also prevented some citizens from going home all night, stranded in shopping malls, MTR stations and even pedestrian bridges.
On September 8, 2023, the heaviest rainstorm since records began, and a temple in Rainbow was half flooded.Photo: Ryan Lai/Duan Media
In Tai Po, New Territories, the Lam Tsuen River was severely flooded, and the water level was close to the footpath; many villages in Sha Tau Kok were flooded, and the water was as deep as the chest. Firefighters came to the scene to rescue. On Hong Kong Island, many inclined roads in Chai Wan turned into rapids, and some citizens fell on the road and were washed tens of meters away. There were many dead vehicles on the street in the area, and some parking lots were flooded close to the roof; some building elevators failed to operate due to the water. The Hong Kong Island entrance of the Hung Hom Cross-Harbour Tunnel was also flooded, and vehicles crossing the sea waded through the water.
The Labor Department of the Hong Kong Government issued an announcement at 9:56 p.m.press release, to remind employers to specify work arrangements for employees under heavy rain as early as possible. At 2:30 am on the 8th, the government issuedpress release, which means that it will be announced before 6:00 a.m. whether it is necessary to suspend work and classes. Chief Executive Lee Ka-chau said that he was very concerned about the serious flooding situation and had instructed all departments to respond with all-out efforts. As of 1 am on the 8th, the Drainage Services Department had received 12 flooding cases. In addition, the MTR stated that it will carry out cleaning and repair work where feasible, and notify the train service arrangement before the first train.
At 4 o’clock in the morning, after suspending late-night and all-night services, the two major bus companies KMB, Citybus and Long Win Bus all announced the suspension of daytime bus services until further notice. New Lantao Bus announced that some of its daytime routes will provide Limited service. The tram company announced the suspension of service at 5 a.m. At 5:37, the Hong Kong government announced the suspension of classes and non-stop work today, and called on employers to adopt flexible working arrangements. The MTR announced at 5:40 to suspend the service between Shek Kip Mei and Choi Hung Station on the Kwun Tong Line.
At 11:44 p.m. on the 7th,Hong Kong government announcedThe Shenzhen Relevant Authorities informed that the Shenzhen Reservoir will discharge flood at 0:00 on the 8th, and the New Territories may be flooded. The public is concerned about whether the notification 16 minutes before the flood discharge is appropriate. Theoretically, the flood discharge from the Shenzhen Reservoir will first pass through the river channel in Luohu District, Shenzhen, and then enter the Shenzhen River to discharge to the Deep Bay. However, the Shenzhen River connects the Indus River, Pingyuan River and their tributaries in the North District of Hong Kong, which will bring flooding to the North District.
On September 8, 2023, the heaviest rainstorm since records began. Some citizens waded through the water, and there were fences, trash cans and other debris floating on the water.Photo: Ryan Lai/Duan Media
At the beginning, the flood discharge flow of the Shenzhen Reservoir was 70-80 cubic meters per second, but at 3:15 in the morning, the Shenzhen Three Defense Command Office issued an emergency notice, stating that because “the water level of the Shenzhen Reservoir has exceeded the flood limit water level”, at 3:00 At 15 minutes, the flood discharge flow was increased to 120 cubic meters per second, and “Futian District and Luohu District organized relevant personnel to stay away from the river area.”
Shenzhen’s previous local forecast did not mention the possibility of heavy rain. “Shenzhen News Network” under the “Shenzhen Commercial Daily” released on the evening of the 6thForecast said“It is expected that the rainfall will increase from the night of the 6th to the 7th, and the overall rain will be relatively gentle, but the rain will last for a long time.” However, at 15:00 on the 7th, heavy rains have already occurred in Longgang, Yantian, Luohu and other districts of Shenzhen. The cumulative rainfall in Yantian District reached 235 millimeters within 3 hours, and waterlogging occurred in some areas. At 22:00 that night, the Shenzhen Meteorological Observatory issued a red rainstorm warning and announced that the city has entered a state of emergency defense against rainstorms.
The reporter browsed the microblogs of some residents in Luohu District, Shenzhen, and found that some residents in Luohu District posted a message after 2:00 a.m. that the power or even water in the area was cut off. The official Weibo account “Dawan District News” stated that some Luohu residents needed to be moved to temporary shelters. The Buji River, a tributary of the Shenzhen River that runs through the center of Luohu District, also swelled beyond its embankments. Weibo user “J_F_o_n_g” said that the nearby “People’s Park” was flooded.
As of the time of writing this article, the official has not yet reported the specific losses of the heavy rain and flooding. An emergency management official interviewed by the Shenzhen TV program “First Live” said that the length of the flood discharge from the reservoir depends on the subsequent rainfall and may last about ten hours.
In addition to Hong Kong and Shenzhen, the aftermath of Typhoon Haikui has caused heavy rain in many places in eastern Guangdong Province.According to reports, Fenggang Town, Dongguan has flooded. Nanfang.com under Nanfang Dailyreport, From September 5 to 12:00 on September 7, the cumulative rainfall in Jieyang, Shanwei, Meizhou, Chaozhou and other places has reached more than 300 millimeters, and many places have issued red rainstorm warning signals.China Weather Network under China Meteorological Observatoryreported thatheavy rainfall caused waterlogging in Shanwei City, Huilai Huicheng and other places; CCTVthen reportIt is said that the road collapse and water accumulation in Fengshun County, Meizhou City are serious,Some residents were forced to move；Jiedong District, Jieyang CityThe Xinxihe Reservoir has decided to discharge flood water on September 8 to lower the water level.
It is worth noting that there are few reports on rainfall in eastern Guangdong in the media, and there are few related discussions on social platforms such as Weibo.Previously, the Shenzhen Comprehensive Development Research Institutean articleIt was mentioned that eastern Guangdong is an underdeveloped area with relatively backward infrastructure construction.
Previously, sea anemones had caused heavy rains and heavy rains in south-central Fujian and Ningde.Flooding also occurred in Fuzhou City,cause1.5916 million people in Fujian were affected, and 294,100 residents were forced to relocate。
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