Tropical Cyclone Rusty (17S) Tracking South-southeastward17.3S 119.5E
located approximately 105nm north-northeast of Port Hedland, Australia, has tracked south- southeastward at 03 knots over the past six hours.
Animated infrared satellite imagery depicts tightly-curved deep convective banding wrapping into a well-defined low-level circulation center. Animated water vapor imagery indicates radial outflow with good poleward outflow enhanced by a sharp upper-level trough positioned over Western Australia.
An AMSU image and Port Hedland radar imagery show a broad (60nm to 70nm diameter) center with intense convective banding over the southern semi-circle. There is fair confidence in the initial position due to the large nature of the center although recent radar imagery suggests that the system is drifting slowly southward. The initial intensity remains assessed at 75 knots based on the higher range of Dvorak intensity estimates.