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Tropical Cyclone 26S (Jade) Maintains Intensity

April 10th, 2009 Category: Tropical Cyclones

Tropical Cyclone 26S (Jade) - April 10th, 2009 © Univ. of Wisconsin

Tropical Cyclone 26S (Jade) - April 10th, 2009

TC 26S © JTWC

TC 26S

Tropical Cyclone 26S (Jade), located approximately 280 nautical miles west-southwest of La Reunion, has tracked southeastward at 5 knots over the past six hours. Maximum significant wave height is 16 feet.

TC 26S continues to track southeastward along the southwestern periphery of a subtropical ridge extension to the north and east of the cyclone.

The low level circulation center (LLCC) remains partially exposed, with persistent westerly vertical wind shear confining convective development to the eastern portion of the LLCC.

Despite strong vertical wind shear, Jade has maintained intensity over the past 6 hours under the influence of strong diffluence aloft.

During the forecast period, the system is expected to continue generally southeastward along the southwestern periphery of the current steering ridge and ahead of a developing
midlatitude trough to the southwest.

The cyclone will rapidly accelerate to the southeast and begin extratropical transition as it encounters the flow associated with the approaching midlatitude trough around TAU 24. Strong upper-level diffluence ahead of the trough will enable TC 26S to strengthen as it completes extratropical transition by TAU 36.

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