The Observatory updated its quarterly forecast today (31st), indicating that due to the impact of global warming and local urbanization, there will be a significant long-term upward trend in summer temperatures in Hong Kong from June to August. The temperature is expected to be normal to high (that is, higher than 28.9 degrees) this summer ) and normal to heavy rainfall (ie more than 1,560 mm).
▼The situation of Tuen Mun Golden Beach on the first day of the reopening of the LCSD beach on May 5▼
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La Niña continues to have no significant impact on Hong Kong
Hong Kong has just experienced its hottest year since records began in 1884. Last year, the number of hot nights and extremely hot days reached 61 and 54 respectively, both the highest on record.
This year, the atmosphere of summer has also been felt early. As early as the end of April, the first extreme hot weather warning has been ushered in, breaking the record of May 3, 2018 and becoming the earliest extreme heat warning issued in history.
▼April 29, the earliest hot weather warning from the calendar▼
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The Observatory announced today the quarterly forecast for June to August, expecting normal to high temperatures.
The Observatory said that La Niña has continued for more than a few months, and the water temperature in the central and eastern equatorial Pacific has remained cold. Based on the latest ocean observation data and the predictions of various climate models around the world, La Niña is expected to continue this summer, but statistical analysis shows that La Niña has no significant effect on Hong Kong's summer temperature and rainfall.
▼The weather on April 26 was generally sunny and continued to be hot▼
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Most climate models predict hotter South China
However, the Observatory pointed out that due to the impact of global warming and local urbanization, the temperature in Hong Kong has a clear long-term upward trend in summer, and the chances of normal to high temperature are generally high. The temperature is normal to high.
In terms of rainfall, taking into account the forecasts of various climate models, it is expected that Hong Kong has a slightly higher chance of normal to excessive rainfall this summer.
▼On April 5, the water storage in the Xiachengmen Reservoir was as low as the bottom▼
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Up to 8 tropical cyclones may hit Hong Kong this year
The Observatory announced its annual forecast in March. The total annual rainfall is expected to be normal to high (ranging from 2,200 to 2,800 mm); the annual average temperature in Hong Kong is normal to high; 5 to 8 tropical cyclones are expected to enter Hong Kong within a range of 500 kilometers , is normal to excessive.
The head of the Observatory pointed out that the timing of the rainfall outbreak is random. Try the new radar encryption scanning, but there are still limitations The observatory can be tested for the position of the observatory. The observatory relies on the balloon "8 to 8" to sound out the King's Park to become the first certified 100-year-old high-altitude observatory.