Hong Kong will be “extremely hot” and hit by occasional showers as Typhoon Bavi moves across the seas east of Taiwan towards Guangdong on the weekend, with unstable offshore weather already disrupting a number of flights.The city’s Observatory said that as Bavi moved across Taiwan and then towards the vicinity spanning northern Fujian and southern Zhejiang, its outer airstream would subside, resulting in “mainly fine and extremely hot weather” in Guangdong from Friday to Sunday.“High...