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Tropical Cyclone Ului (20P) Closer to Making Landfall in Queensland, Australia

18.6S 151.1E

March 20th, 2010 Category: Tropical Storms

Tropical Cyclone Ului (20P) - March 18th, 2010

Tropical Cyclone Ului (20P) - March 18th, 2010

Enhanced image

Enhanced image

Track of TC 20P - March 20th, 2010 © Univ. of Wisconsin

Track of TC 20P

Tropical Cyclone Ului (20P), located approximately 510 nautical miles east-southeast of Cairns, has tracked southwestward at 13 knots over the past six hours. Maximum significant wave height is 24 feet.

Animated infrared satellite imagery shows a partially exposed low level circulation center (LLCC) with a loss in deep convection.

However, an SSMIS microwave image indicates the deep convection has developed slightly over the last six hours though it also confirms the deep convection is still limited to the southern periphery of the system.

An upper level trough to the west has caused increased vertical wind shear (VWS) and subsidence aloft, which has contributed to the weakening of TC 20P. The initial intensity is based on persistent Dvorak intensity estimates of 55 knots.

TC Ului will continue to track southwestward to westward toward northeastern Australia as the subtropical ridge builds in to the south and east. The system will weaken under the influence of moderate VWS, prior to reaching land after TAU 24, with complete dissipation over land by TAU 48.

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