The weather in Hong Kong has been unstable recently. This morning (13th), the Observatory issued the first red rainstorm warning signal this year.
The Director of the Observatory, Cheng Chu-ming, said today that a broad rainband crossed the southern part of Hong Kong from 3 to 4 a.m., mainly affecting Hong Kong Island and Tseung Kwan O. The rainfall reached 70 mm per hour in some areas, reaching the level of a black rainstorm warning signal.
Zheng Chuming also pointed out that Hong Kong will still be affected by a trough of low pressure in the next one or two days, and the convective activities will be random. At present, there is a rain band developing in the southwest of Hong Kong, so there is still a chance to move to the north and affect Hong Kong. It's been over." He emphasized that before Sunday (15th), the weather in Hong Kong was still unstable, and "it can change very quickly when you see a good day." He appealed to the public to avoid hiking on mountain streams on weekends.
▼The rainstorm warning on May 12 will be windy and rainy▼
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Cheng Chuming said today that a broad rainband crossed the southern part of Hong Kong at 3-4 in the morning, mainly affecting Hong Kong Island and Sai Kung. The rainfall in some areas reached 70 mm per hour, so the first red rainstorm warning signal was issued this year.
He explained that "it was affected by rainbands one or two days earlier, but the rain was not particularly heavy at that time. The rainfall in one hour yesterday (12th) was about 20 to 30 mm."
At present, the rainbands have moved to the south of Hong Kong. Zheng expects that the rainbands will move away from Hong Kong in the afternoon, and the rain will gradually weaken.
I was asked why the Observatory did not issue a black rainstorm warning signal when the rainfall reached 70 mm per hour on Hong Kong Island.
Zheng Chuming responded that black rain must depend on the area of influence of the rain. This morning, only Hong Kong Island, Tseung Kwan O and Sai Kung reached the standard of black rain. Most areas only reached the level of red rain. "The affected area is not too extensive. ".
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As for the weekend weather, Zheng expects that the northeasterly wind will reach the coast of southern China next week, which can push the rainbands to the south of Hong Kong, away from Hong Kong. "Although it may not be easy to see the sun next Monday (16th), the rain will be slow. weaken".
However, he pointed out that there are differences in model forecasts in different regions. For example, the United States is expected to arrive from the northeasterly wind tomorrow (14th), and the common point of all models is that Hong Kong will be affected by the northerly wind next Monday.
The weather will continue to be unstable in the next one or two days.
Cheng Chuming emphasized that Hong Kong will still be affected by a trough of low pressure in the next one or two days, and the weather will continue to be unstable. Heavy rain and thunderstorms will still occur occasionally, and "the timing or extent of heavy rain is more or less random."
He also pointed out that there are still rainbands developing in the southwest, and there is a chance that it will affect Hong Kong to the north.
As for whether the HKDSE should be postponed?
Zheng Chuming reiterated that heavy rain is random, and reminded the public to pay attention to the weather information and warnings issued by the Observatory before going out.
In addition, he also expects the next wave of northerly winds to arrive next Monday, and the urban area will cool down to a minimum of 19 degrees. He said with a smile that "there was a saying that 'the May glutinous rice has not been eaten' before, and there is a chance that it will be affected by the northeast monsoon."
However, he pointed out that the Observatory predicts that the temperature will not be too low next week, and the public should still pay attention to weather changes.
▼Hong Kong under the rainstorm on May 11▼
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The thunderstorm area will affect the Hong Kong Observatory in the next two to three hours: the uncertainty of the rainy area will make it difficult to warn the rainstorm in advance | the actual rainfall in the next two to three days is difficult to measure Hang red rain black rain?
The Observatory said this about the rainstorm news | Observatory: Whether the warning will be issued on Thursday and Friday depends on the development of the rainy area, Zhuhai, Macao, classes are suspended