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Tropical Cyclone 04S (Cinda) Continues to Move South

December 19th, 2008 Category: Tropical Cyclones

Tropical Cyclone 04S (Cinda) - December 18th, 2008 © JTWC

Tropical Cyclone 04S (Cinda) - December 18th, 2008 © JTWC

Tropical Cyclone 04S (Cinda), located approximately 535 nautical miles southwest of Diego Garcia, has tracked southward at 7 knots over the past 6 hours.

It is moving southwestward along the northwestern periphery of a low to mid-level steering ridge to the southeast.

Recent imagery indicates that northwesterly vertical wind shear has increased in association with the peripheral flow of an anticyclone aloft.

This vertical wind shear has displaced deep convection associated with this cyclone to the southeast, partially exposing the low level circulation center.

Generally southwestward motion is expected to continue through the forecast period with a slight westward turn resulting from a reorientation of the steering ridge to the South.

The negative impact of persistent northwesterly vertical wind shear and marginal ocean heat content will offset strong poleward outflow over the next 48 hours, resulting in slow weakening.

Maximum significant wave height is 13 feet.

source JTWC

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