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Tropical Cyclone Cherono (18S) Tracks West-Southwestward

21.9S 56.9E

March 20th, 2011 Category: Tropical Storms

Tropical Cyclone Cherono - March 19th, 2011

Enhanced image

Track of TC 18S

Tropical Cyclone Cherono (18S), located approximately 595 nm east of La Reunion, has tracked west-southwestward at 08 knots over the past six hours.

Animated water vapor satellite imagery shows the convection associated with the system has significantly reduced and shallowed. This is confirmed by a microwave image depicting a low level circulation center fully detached from marginal convection to the southeast.

The initial intensity is extrapolated from recent imagery showing 20-30 knot wind barbs around the periphery of the system. Upper level analysis indicates the system is now just to the south of the ridge axis in an area of moderate (25-30 kt) northwesterly vertical wind shear.

TC Cherono is expected to continue be steered by the subtropical ridge to the southeast and tracking west- southwestward, before dissipating as a significant tropical cyclone over water by TAU 48. Maximum significant wave height is 12 feet.

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