 There was initially moderate wind shear in the region, although an anticyclone was developing aloft, which allowed the convection was able to persist over the center and gradually develop outflow.Late on 3 February, the Perth Tropical Cyclone Warning Center (PTCWC) upgraded the tropical low to a Category 1 on the Australian tropical cyclone scale, estimating 10 minute sustained winds of 65 km/h (40 mph).At 04