sentences:  TCWC Jakarta and TCWC Perth then reported at 1500 UTC (2300 WST), that the low had developed into a category 1 tropical cyclone, before six hours later the JTWC followed suit and assigned it the designation 28S.However the cyclone was not named as Rosie, until early the next day after it had moved out of TCWC Jakarta's area of responsibility and moved into Perth's.As Rosie moved into TCWC Perth's area of responsibility, both TCWC Perth and the JTWC reported that the system had peaked with windspeeds of 95 km/h (60 mph), which meant that it was a category two tropical cyclone on the Australian scale and equivalent to a tropical storm on the SSHS.