I got quite a shock in the last half hour, when I happened to look at the webpage for the Joint Typhoon Warning Center and found an amendment to the 1500 GMT warning for typhoon Vicente, near Hong Kong. Originally, warning 12 quoted Vicente at 70 knots, equivalent to a category I hurricane. JTWC have changed this ever so slight to 120 knots, that's a category IV hurricane. The storm has intensified by an unbelievable 50 knots in 6 hours, a rate of intensification that is classified as explosive.
The Hong Kong Observatory has placed the city under hurricane signal 10, reporting winds of 110 mph in places around the territory.