Typhoon Mangkhut swept Hong Kong on September 16, bringing heavy rains and strong rains as residents braced for what is the most severe storm in the city on record.<br /><br />The Typhoon Signal 10 was raised just before 10 am this morning, with winds as high as 180 km/h. The red rainstorm warning was also issued.<br /><br />Tens of thousands of passengers had their travel plans derailed as most airlines canceled flights for the day, a representative of the Airport Authority said.<br /><br />Mangkhut made landfall in Philippines on Saturday, killing 16.