Once the semi-finalists are determined Deciding and their acts are performed Hold in the semis , it is the singers themselves who must vote Choosing for each other in a 1-through-30 ( skipping 23 , 25 , 27 , 28 and 29 ) point system to determine both the songs that will reach the finals and their final ranking .

Initially , the storm Catastrophe developed Coming_to_be with sustained winds of 50 mph ( 85 km/h ) , skipping Self_motion tropical depression status .