this post was submitted on 08 Sep 2023

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Hong Kong paralyzed by flash flooding after heaviest rainfall since 1884 (www.cnn.com)

submitted 1 year ago by deconstruct@lemm.ee to c/worldnews@lemmy.ml

14 comments fedilink hide all child comments

Record-breaking rainfall paralyzed much of Hong Kong on Friday, with flash flooding submerging metro stations and trapping drivers on roads, as authorities suspended schools and urged the public to seek safe shelter.

Photos and videos showed residents wading through murky brown floodwaters as heavy rain continued to fall. In some low-lying areas, streets were transformed into surging torrents, with authorities forced to rescue motorists stuck in their vehicles.

The deluge began late Thursday night, with the Hong Kong Observatory recording more than 158 millimeters (6.2 inches) in rain between 11 p.m. and midnight, the highest hourly rainfall since records began in 1884, the government said in a news release.

Some parts of the densely populated city of 7.5 million saw almost 500 mm (19.7 inches) of rainfall in 24 hours, according to online weather data site OGimet.

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[–] Coreidan@lemmy.world 13 points 1 year ago (1 children)

Extreme flooding is our future. Buckle up.

[–] awwwyissss@lemm.ee 9 points 1 year ago

Extreme flooding and extreme drought. Climate change also interacts with many other hazards.

[–] Tomboys_are_Cute@hexbear.net 8 points 1 year ago

Half of a meter of rain, christ. There are going to be some fucking harrowing rescue efforts and I wish those workers good luck. I am not looking forward to when this happens in my city.

[+] tallwookie@lemm.ee 5 points 1 year ago* (last edited 1 year ago) (3 children)

[deleted]

[–] Arn_Thor 37 points 1 year ago* (last edited 1 year ago) (2 children)

The water management infrastructure is excellent. But it was designed to cope with century floods, not the kind that happen every other century.

Edit: the drainage systems were in fact designed to cope with a once-in-200-years flood. But this was a 500 year flood. A quarter of Hong Kong’s annual rainfall poured down in a day—and this is a place with notorious rain storms through the summer

[–] burningmatches 17 points 1 year ago (1 children)

They also just had a typhoon, which means there was probably a lot of debris making things worse.

[–] awwwyissss@lemm.ee 1 points 1 year ago

Debris and saturated land so the water had nowhwre to go.

[–] originalucifer@moist.catsweat.com -1 points 1 year ago (1 children)

but they will now, right? right?!

[–] Arn_Thor 1 points 1 year ago

There are some events that are costlier to plan for than to clean up after. I’m not sure if this is one of those, but…

[–] prenatal_confusion@lemmy.one 10 points 1 year ago

It's all engineers to some limits that are expected. This was not within those limits.

Same thing with Texas and the cold front. Of course Montreal could have dealt with that easily but they expect that sort of thing.

[–] Astrealix@lemmy.world 1 points 1 year ago (1 children)

I have never seen the city like this; I'm glad I'm not there rn. There are some rumours about how because the government sealed brick paths with glue following the protests the drainage is weaker, but idk how true that is

[–] Arn_Thor 3 points 1 year ago (1 children)

I’m sure that didn’t help but that’s a drop in the proverbial ocean. There have been many severe rainstorms since that happened and nothing like this occurred

[–] Astrealix@lemmy.world 1 points 1 year ago

Yeah for sure, this is after all a record storm. That's the main cause probably.

[–] autotldr@lemmings.world 1 points 1 year ago

This is the best summary I could come up with:

Friday’s deluge caused widespread transport and business disruptions across the financial hub, with the stock market canceling morning trading, and all schools closed for the day.

On Friday, authorities appealed to businesses to allow non-essential employees to stay at home or seek safe shelter, citing unsafe travel conditions.

The “extreme” conditions, including “widespread flooding, traffic disruption and a high risk for landslide,” are expected to continue until at least 6 p.m. on Friday, the government said.

The city’s Mass Transit Railway announced it would suspend services on one of its lines after a station in the Wong Tai Sin district was flooded, with footage shared widely online showing floodwater gushing down the stairs.

The government also warned “there may be a risk of flooding” in its northern New Territories district, which is adjacent to the Chinese mainland, after the neighboring city of Shenzhen said it would release water from a reservoir.

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