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Tropical Cyclone Lua (17S) Set to Make Landfall Over Australia – March 17th, 2012

18.6S 114.6E

March 17th, 2012 Category: Image of the day, Tropical Cyclones

Tropical Storm Lua (17S) - March 16th, 2012

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Track of TS 17S - March 16th, 2012 © Univ. of Wisconsin

Track of TS 17S

Tropical Cyclone Lua (17S), located approximately 150 nm north of Port Hedland, Australia, has tracked southeastward at 13 knots over the past six hours. Port Hedland radar imagery indicates the LLCC passed over Rowley Shoals at approximately 01:00am local time.

Animated infrared satellite imagery indicates that the system has increased its horizontal extent while maintaining tightly-curved bands wrapping into a well-defined low-level circulation center (LLCC). Recent microwave satellite imagery reveals the deepest convection is location along the western semi-circle of the LLCC, which is due to light to moderate (10-20 knots) easterly vertical wind shear. The current intensity is assessed at 90 knots. Maximum significant wave height is 32 feet. Sustained 10-minute winds were reported at 73 knots.

TC 17S is forecast to continue tracking southeastward, making landfall east of Port Hedland in approximately 12 hours. The system is forecast to reach a peak intensity of 95 knots prior to landfall and then rapidly weaken with dissipation over land forecast by TAU 36.

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