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Tropical Cyclone 24S (Izilda) Tracks Slowly South-Southeast

March 25th, 2009 Category: Tropical Cyclones

Tropical Cyclone 24S (Izilda) - March 25th, 2009 © Univ. of Wisconsin

Tropical Cyclone 24S (Izilda) - March 25th, 2009

TC 24S © JTWC

TC 24S

Tropical Cyclone 24S (Izilda), located approximately 365 nautical miles southwest of Antananarivo, Madagascar, has slowed down and tracked south-southeastward at 03 knots over the past six hours. Maximum significant wave height is 12 feet.

The current intensity estimate is consistent with Dvorak t-numbers of 2.5 reported by PGTW and FMEE.

TC 24S is tracking poleward along the western periphery of a subtropical steering ridge to the East. Over the next 12 to 24 hours, a second ridge will build to the South of the cyclone and provide a competing steering influence, turning the cyclone slowly westward.

Eye of TC 24S - March 25th, 2009 © Univ. of Wisconsin

Eye of TC 24S

An alternate scenario is for the system to continue to steer southward by the ridge to the East. In either case, moderate vertical wind shear will offset the strong poleward outflow, evident on water vapor satellite animation, causing the system to dissipate by TAU 48.

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