 During that day the system continued to intensify as it moved towards the south-southwest across the axis of a ridge of high pressure towards a strong subtropical jet stream before it recurved and started to move towards the southeast during 9 May.During 9 May, TCWC Brisbane reported that Lisa had become a category 2 tropical cyclone, before reporting that the system had reached its peak intensity with 10-minute sustained windspeeds of 110 km/h (75 mph) during the next day.The JTWC also reported during 10 May, that Lisa had peaked with 1-minute sustained winds of 150 km/h (90 mph), which made it equivalent to a category one hurricane on the SSHWS.