This story has been made freely available as a public service to our readers. Please consider supporting SCMP’s journalism by subscribing now for 50 per cent off during our two-day flash sale. The Hong Kong Observatory issued the No 8 warning signal at 2.20pm on Tuesday as Super Typhoon Ragasa is expected to bring hurricane-force winds with speeds of up to 230km/h (143mph) and thunderstorms. The forecaster says the weather will deteriorate “rapidly” later on Tuesday and that it will consider...