2023 Hong Kong rainstorm and floods: Difference between revisions
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On the evening of 7 September 2023, a |
On the evening of 7 September 2023, a heavy rainstorm occurred in the city of [[Hong Kong]] and the [[Pearl River Delta]] area, including the parts of [[China]]'s [[Guangdong]] province and [[Macau]]. Widespread flooding and landslides led to multiple deaths and more than a hundred injuries <ref>{{cite news |last1=Kong |first1=Harvey |last2=Lam |first2=Jeffie |title=Hong Kong flood aftermath: police confirm identity of remains found near island as missing man, hours after discovery of another body |url=https://www.scmp.com/news/hong-kong/health-environment/article/3233976/hong-kong-flood-aftermath-body-man-found-during-river-clearance-yuen-long |access-date=2023-09-09 |agency=South China Morning Post |date=2023-09-09}}</ref><ref>{{cite news |last1=Mok |first1=Danny |title=Hong Kong man, 38, dies while connecting solar panels to power supply amid rainfall at city’s science park |url=https://www.scmp.com/news/hong-kong/society/article/3234047/hong-kong-man-38-dies-while-connecting-solar-panels-power-supply-amid-rainfall-citys-science-park |access-date=2023-09-10 |agency=South China Morning Post |date=2023-09-10}}</ref>. |
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== Meteorological history == |
== Meteorological history == |
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Revision as of 20:52, 11 September 2023
 | You can help expand this article with text translated from the corresponding article in Chinese. (September 2023) Click [show] for important translation instructions.
|
 Low pressure system of former Typhoon Haikui | |
| Cause | Low pressure trough formed by former Typhoon Haikui interacting with the south-westerly monsoon |
|---|---|
| Meteorological history | |
| Duration | 7 September 2023 – 8 September 2023 |
| Flood | |
| Maximum rainfall | 158.1 millimetres (6.22 in) hourly[1] |
| Overall effects | |
| Casualties | 148 (4 dead, 144 injured) |
| Fatalities | 4 |
| Injuries | 144 |
| Economic losses | HK$100 million |
| Areas affected | Hong Kong, Macau, southeastern Guangdong province |
| [2][3] | |
On the evening of 7 September 2023, a heavy rainstorm occurred in the city of Hong Kong and the Pearl River Delta area, including the parts of China's Guangdong province and Macau. Widespread flooding and landslides led to multiple deaths and more than a hundred injuries [4][5].
Meteorological history
On 5 September 2023, Typhoon Haikui made landfall in China's Fujian province, subsequently moving into Guangdong, before its remnants stalled over the Pearl River Delta for over two days. As the low pressure trough associated with Haikui's remnants interacted with the south-westerly monsoon [6], the Pearl River Delta started experiencing extreme rainfall beginning on the night of 7 September.
On 7 September, Sha Tau Kok in the North District already recorded more than 70 millimetres (2.8 in) rainfall by 7 pm, which the Hong Kong Observatory (HKO) issued a flood warning for Northern New Territories at 7:50 pm.[7] Heavy rainfall then spread to the entirety of the city, and the HKO issued the Amber rainstorm signal, which was then upgraded to the Red signal in less than half an hour. At 11:05 pm, the highest warning level, Black rainstorm signal, was issued due to continued worsening situations. It was the first time the warning was issued in two years.[8]
According to Hong Kong Observatory, between 11:00 p.m. of 7 September and 12:00 a.m, of 8 September, the HKO headquarters recorded 158.1 millimetres (6.22 in) mm of rainfall within one hour, the highest hourly rainfall rate ever in Hong Kong since records began in 1884[9].
The torrential rainfall continued overnight and into the morning of 8 September, gradually subsiding by afternoon. The Black rainstorm signal lasted over 16 hours, the longest duration ever since the rainstorm warning system was implemented in 1992. The HKO headquarters accumulated over 632 millimetres (24.9 in) of rainfall within 24 hours, a 24-hour rainfall rate trailing only the record set in May 1889. This also makes Typhoon Haikui the wettest storm in Hong Kong's history, breaking the record of Severe Tropical Storm Sam in 1999. Meanwhile, parts of Hong Kong Island, including Stanley, Chai Wan, Shau Kei Wan and North Point accumulated over 800 millimetres (31 in) of rainfall within just 12 hours, the area around Tai Tam even accumulated over 900 millimetres (35 in).[10]
Impact
This was described as "a once-in-a-century heavy rainstorm" by the Hong Kong government[11].
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Floodwater entering Wong Tai Sin MTR station from street level -
See also
Other recent severe rainstorm events in China:
- 2020 China floods
- 2021 Henan floods -- severe flooding caused by Typhoon In-fa
- 2023 North China floods -- severe flooding caused by Typhoon Doksuri
References
- ^ "9月7至8日的破紀錄暴雨". Hong Kong Observatory (in Chinese). Hong Kong Observatory. Retrieved 9 September 2023.
- ^ Lam, Jeffie (9 September 2023). "Body of man found during river clearance in Hong Kong's Yuen Long". South China Morning Post. Retrieved 9 September 2023.
- ^ "Extreme conditions to cease by midnight, weather improving and transportation gradually resuming, 144 individuals seek treatment at public hospitals". Dimsum Daily. 8 September 2023. Retrieved 9 September 2023.
- ^ Kong, Harvey; Lam, Jeffie (9 September 2023). "Hong Kong flood aftermath: police confirm identity of remains found near island as missing man, hours after discovery of another body". South China Morning Post. Retrieved 9 September 2023.
- ^ Mok, Danny (10 September 2023). "Hong Kong man, 38, dies while connecting solar panels to power supply amid rainfall at city's science park". South China Morning Post. Retrieved 10 September 2023.
- ^ Siu, Tyrone; Master, Farah (8 September 2023). "'Black storm': Parts of Hong Kong submerged after heaviest rain in 140 years". The Sydney Morning Herald. Retrieved 9 September 2023.
- ^ "黑雨警告現正生效 同時發出山泥傾瀉警告". on.cc東網 (in Chinese (Hong Kong)). 7 September 2023. Retrieved 9 September 2023.
- ^ Mok, Danny; Kong, Harvey; Tsand, Denise (7 September 2023). "132 Hongkongers sent to hospitals, all rainstorm alerts cancelled after deluge". South China Morning Post. Retrieved 9 September 2023.
- ^ "PRESS WEATHER NO. 022 - HOURLY READINGS". Weather Report. Hong Kong Observatory. Retrieved 10 September 2023.
- ^ "Hong Kong Weather Station Observations Database". ilens.hk. Retrieved 10 September 2023.
- ^ "Record-breaking rain lashes Hong Kong, forcing schools to shut, workers to stay home". ABC News (Australia). 8 September 2023. Retrieved 9 September 2023.