Thundery showers to affect HK around noon: HKO

The Observatory said areas of thundery showers continue to develop in the vicinity of the Pearl River Estuary and are expected to affect Hong Kong around noon. 

According to the special announcement, the thundery showers were developing under the influence of a broad trough of low pressure.

The broad trough of low pressure will continue to bring showers and thunderstorms to the coast of southern China on Friday (Aug 1), said the forecaster. Meanwhile, a hot southwesterly airstream will also affect the region. 

With the southwesterly airstream becoming active and under the influence of the upper-air disturbances, the weather will be unsettled and showers will be heavy at times over the coast of Guangdong during the weekend to early next week.