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Tropical Cyclone Sandra (19P) Rapidly Intensifies to 110 Knots

23S 154.6E

March 11th, 2013 Category: Tropical Cyclones

Tropical Cyclone Sandra (19P) – March 10th, 2013

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Track of Tropical Cyclone Sandra (19P) - March 10th, 2013 © Univ. of Wisconsin

Track of TC 19P

Tropical Cyclone Sandra (19P) located approximately 455 nm northwest of Noumea, New Caledonia, has tracked southeastward at 04 knots over the past six hours. Maximum significant wave height is 33 feet.

Animated infrared satellite imagery and recent microwave imagery depict a rapidly consolidating system with a 30 nm round eye and a large convective signature. Based on the eye, there is high confidence in the initial position and recent motion.

Over the past 24 hours, TC 19P has rapidly intensified from 65 to 110 knots with improved, near-radial outflow. The initial intensity is based on the higher end of Dvorak intensity estimates ranging from 102 to 115 knots.

TC 19P has slowed its forward motion over the past six hours and has turned more southward as it begins to track along the western periphery of the deep subtropical ridge positioned to the east.

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