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. Hongkongers should stay alert for widespread showers that could lead to flooding, the local forecaster has said, as Tropical Cyclone Wipha edges closer to the city. The Hong Kong Observatory also cancelled an amber rainstorm signal at 1pm on Friday, nearly two hours after issuing it. It...