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Tropical Cyclone 21P (Ken) Intensifies Slightly, but Expected to Weaken

March 19th, 2009 Category: Tropical Cyclones

Tropical Cyclone 21P (Ken) - March 19th, 2009 © Univ. of Wisconsin

Tropical Cyclone 21P (Ken) - March 19th, 2009

TC 21P (Ken) - March 18th, 2009 © JTWC

TC 21P (Ken) - March 18th, 2009

Tropical Cyclone 21P (Ken), located approximately 265 nautical miles south of Rarotonga, in the Cook Islands, has moved southeastward at 12 knots over the past six hours. Maximum significant wave height at 190000z was 12 feet.

The system has maintained convection around its low level circulation center and has slightly increased intensity.

Animated multispectral satellite imagery shows that a front-like convergent line has formed on the north to northeast quadrant of the system.

Environmental analysis indicates TC 21P is rapidly approaching the baroclinic zone, characterized by increasing vertical wind shear and cold air advection.

The cyclone is expected to fully transition into an extra-tropical system within the next 24 hours.

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