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Tropical Cyclone 24S (Izilda) Causes Navigation Danger in Mozambique Channel

March 26th, 2009 Category: Tropical Cyclones

Tropical Cyclone 24S - March 26th, 2009

Tropical Cyclone 24S - March 26th, 2009

TC 24S - enhanced image

TC 24S - enhanced image

Tropical Cyclone 24S (Izilda), located approximately 350nautical miles southwest of Antananarivo, Madagascar, has tracked eastward at 5 knots over the past six hours.

Here, it can be seen in the Mozambique Channel, between Madagascar (right) and Mozambique (upper left in full image). Maximum significant wave height is 14 feet.

The Mozambican National Weather Service (INAM) has warned maritime authorities about the dangerous situation for navigation in the Mozambique Channel due to the strong winds and wave height.

Current intensity is based on satellite intensity estimates ranging from 45 to 65 knots from PGTW and FMEE. TC 24S is forecast to weaken throughout the forecast period as it interacts with land on its eastern periphery and increasing vertical windshear from an approaching upper level trough to the Southwest.

Track of Tropical Cyclone 24S - March 26th, 2009 © Univ. of Wisconsin

Track of Tropical Cyclone 24S

The vertical windshear will cause decoupling of the deep convection from the low level circulation center (LLCC).

As vertical windshear increases, the LLCC will begin to steer on an extension of subtropical ridging centered to the West over South Africa and extending into the southern Mozambique Channel. This will cause the weakening LLCC to track to the West-northwest and back into the channel.

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