This story has been made freely available as a public service to our readers. Please consider supporting SCMP’s journalism by subscribing. New users who download our updated app get a seven-day free trial. Hong Kong’s weather forecaster has issued a red rainstorm warning as the city is being hit by widespread heavy showers. The signal was raised at 9.36am on Thursday, replacing an amber rainstorm warning that was issued by the Hong Kong Observatory at 8.35am. “Widespread heavy rain may affect...