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Rainstorm warning ︱Tai Po Islands' rainfall reaches black rain level

2020-06-07T10:23:21.952Z


Hong Kong has been raining for days and thunderstorms are increasing this morning. Flooding has occurred in many areas of the New Territories. The Observatory has issued "yellow rainstorm warning signals" and "red rainstorm warning signals" successively. Many residential areas in the New Territories were flooded, and some roads and landslides were blocked along the whole line. There was a minibus dead in the water. The Tai Po Wan Kiln was suspected of heavy rain, which caused the river to overflow. The flood continued to beat and washed up the river fence. At least 33 residents in Tai Po, North District and Lantau Island were trapped and needed fire rescue. According to the weather manuscript and rainfall data issued by the Observatory today, it was found that during the period when yellow rain and red rain were in effect, the maximum rainfall in Tai Po District and Islands District recorded 80 to 108 millimeters of rainfall, which had already reached or even exceeded the level of black rain.


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Written by: Deng Bailiang

2020-06-07 12:28

Last update date: 2020-06-07 12:45

Hong Kong has been raining for days and thunderstorms are increasing this morning. Flooding has occurred in many areas of the New Territories. The Observatory has issued "yellow rainstorm warning signals" and "red rainstorm warning signals" successively. Many residential areas in the New Territories were flooded, and some roads and landslides were blocked along the whole line. There was a minibus dead in the water. The Tai Po Wan Kiln was suspected of heavy rain, which caused the river to overflow. The flood continued to beat and washed up the river fence. At least 33 residents in Tai Po, North District and Lantau Island were trapped and needed fire rescue. According to the weather manuscript and rainfall data issued by the Observatory today, it was found that during the period when yellow rain and red rain were in effect, the maximum rainfall in Tai Po District and Islands District recorded 80 to 108 millimeters of rainfall, which had already reached or even exceeded the level of black rain.

Flooding occurred in the village house area of ​​Tai Po. (Photo by Chen Leilei)

According to the weather draft and rainfall records issued by the Observatory this morning, the maximum rainfall of 80 mm was recorded in Tai Po District from 6:45 to 7:45 am, which had reached the black rain warning level; the highest in North District and Sha Tin was also recorded The rainfall of 68 mm is very close to the level of black rain. The Astronomical District also issued the "Local Heavy Rain Report" twice at 6:35 am and 7:20 am, indicating that the rain in Sai Kung and Tai Po was particularly heavy, recorded in the past two hours at 7:15 am It has more than 70 millimeters of rainfall. Some people on the online social platform also uploaded the situation of Tai Po Wan Kiln this morning. Photos and short videos have shown that the suspected heavy rain in Tai Po Wan Kiow caused flooding of the river, flooding and rushing to the river fence.

Since then, at least 7 flooding reports have been received in Tai Po District, North District and Sha Tin District. At 8:05 am, the transportation indicated that due to flooding, the entire line of the Tai Po Kau section of the Tai Po Highway near Songzaiyuan is now closed. The affected bus routes must be diverted. At least 28 residents in Ma On Shan, Sha Tin, Tai Po and Sha Tau Kok villages were trapped and needed rescue.

At least 33 residents of Hong Kong were trapped

It is suspected that the heavy rain caused the flooding of the river in Tai Po Wan Kiln. (Photo by Netizen Alex Mo)

From 6:45 am to 7:45 am, the rainfall in Tai Po, Sha Tin and Sai Kung increased, with a maximum rainfall of 68 to 80 mm. In addition, the Observatory's rainfall distribution map also shows that the rainfall in this area is alarming at 8 o'clock. (Photo of the Observatory)

From 7:45 am to 8:45 am, the rainfall in the outlying islands increased, with a maximum rainfall of 108 millimeters, far exceeding the level of black rain. According to the rainfall distribution map of the Observatory, Lantau Island and Cheung Chau are the hardest hit areas, and Tongfu has 5 People were trapped by the flood, while some mountain hikers in Mui Wo could not go down due to heavy rain.

At 9 a.m., the Observatory's rainfall distribution map showed that the Lantau and Cheung Chau areas were the hardest hit areas. (Photo of the Observatory)

"Is flooding a yellow rain?" Guidelines for the Observatory to issue a rainstorm warning

In the past, netizens often had doubts about "floods are in the form of yellow rain" and questioned why there are many areas of Hong Kong that have recorded "red rain" and "black rain" levels of rainfall, but the Observatory has not issued a higher level warning signal. . According to the criteria issued by the Observatory for rainstorm warnings, it is mainly based on whether Hong Kong "extensive areas" have "recorded" or "expected" rainfall to meet the standard, and whether the rain is "probably sustainable" before deciding to issue corresponding rainstorm warnings. .

The Observatory also explained on many occasions that in response to the rapid development of rainstorms and great changes, and to avoid causing confusion of information to the citizens of cross-regional activities, the "Special Report on Flooding in the Northern New Territories" and "Heavy Rain Reports in Local Areas" were issued only before red rain was changed. "To remind the public to raise the risk of flooding. Taking today as an example, the Observatory issued a yellow rainstorm warning signal at 6:20 a.m. and issued a "local heavy rain report" again at 6:35 and 7:20 to remind the rain in Sai Kung and Tai Po Especially large, there may be severe flooding.

Observatory's rainstorm warning system:

"Yellow Rainstorm Warning Signal": It indicates that a large area of ​​Hong Kong has recorded or expected heavy rainfall with an hourly rainfall of more than 30 mm, and the rain may continue.

"Red Rainstorm Warning Signal": It indicates that a wide area of ​​Hong Kong has recorded or expected heavy rains exceeding 50 mm per hour, and the rain may continue.

"Black Rainstorm Warning Signal": indicates that a wide area of ​​Hong Kong has recorded or expected heavy rain with an hourly rainfall of more than 70 mm, and the rain may continue.

time

event

6:20

Observatory issues yellow rainstorm warning signal

6:35

The Observatory issued a local heavy rain report, saying that the rain in Sai Kung was particularly heavy

7:20

The Hong Kong Observatory issued a local heavy rain report, indicating that the rain in Sai Kung and Tai Po areas was particularly heavy

7:30

Observatory issues red rainstorm warning signal

10 o'clock

Observatory issues special report on flooding in northern New Territories

11 o'clock

Observatory issues yellow rainstorm warning signal

Hong Kong Observatory Red Rain Yellow Rain Black Rain (Black Rainstorm Warning) (Black Rain) Flooding New Territories Flooding

Source: hk1

All news articles on 2020-06-07

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