 The JTWC upgraded the system to the equivalent of a hurricane on December 4, estimating peak 1-minute winds of 140 km/h (85 mph).Increased wind shear decoupled the convection from the center; the thunderstorms continued to the west-northwest and struck Andhra Pradesh, while the circulation turned southwestward.Weakening further, the system made landfall on Tamil Nadu between Chennai and Pondicherry around 16