Amber Rainstorm Warning and Thunderstorm Warning in effect (Updated: 1pm)

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23rd April 2024 – (Hong Kong) At 4.50am today, the Hong Kong Observatory issued an announcement, alerting the public to an approaching area of intense thundery showers over the Pearl River Estuary. These showers are gradually moving eastwards and are expected to bring heavy rainfall and squally thunderstorms to Hong Kong in the next couple of hours. The Observatory advises members of the public to remain vigilant and take necessary precautions.

The Hong Kong Observatory has issued a special Amber Rainstorm Warning as of 8.30am. This amber alert indicates that heavy rainfall, exceeding 30 millimetres per hour, has been recorded or is anticipated across Hong Kong, with the expectation that it will persist. Amber Rainstorm Warning was subsequently cancelled at 12.50pm.

Areas that are low-lying and have poor drainage are at risk of flooding. Individuals in these areas are advised to undertake necessary precautions to mitigate risks associated with the heavy rainfall and potential flooding.

Additionally, the heavy rain could trigger flash floods. It is advised that people steer clear of river courses and those susceptible to flooding should take proactive measures to prevent potential damage. Furthermore, the Thunderstorm Warning initiated at 4.45am today, has been prolonged until 12.45pm today. Intense squally thunderstorms are forecasted, with violent wind gusts that may exceed 90 kilometres per hour poised to impact Hong Kong.

This weather phenomenon is attributed to a trough of low pressure, which is exerting its influence over the coastal areas of Guangdong. Today, heavy showers and squally thunderstorms are expected in these regions. However, the trough of low pressure is predicted to gradually move away from the coast on Wednesday, resulting in a decrease in rainfall. Nonetheless, a few showers are still anticipated in the area.

Looking ahead, the latter part of this week may bring unsettled weather conditions once again as another trough of low pressure approaches the southern coast of China. Thundery showers are expected to occur intermittently over the region.

Today’s weather forecast for Hong Kong indicates cloudy skies with showers throughout the day. At times, these showers will be heavy, accompanied by squally thunderstorms. The maximum temperature is projected to reach around 27 degrees Celsius, with moderate southerly winds prevailing.