Cyclone Trevor creates wind gusts as violent as Cyclone Tracy before downgrading to tropical low Before it downgraded to a tropical low, the winds around Cyclone Trevor's eye peaked at 175kph, gusting to 250kph, which the Bureau of Meteorology says puts it on par with the notorious Cyclone Tracy. The weather system is moving south near Tennant Creek and will bring heavy rainfall and destructive winds to the Barkly region.