sentences:  It reached peak winds of 110 mph (175 km/h) on November 15, and subsequently began to weaken due to increased wind shear as it turned to the north.Sergio later turned to the west, remaining well off the coast of Mexico, and dissipated on November 20 about 320 miles (515 km) west-northwest of it originally formed.Sergio produced light rainfall along the coast of Mexico, though its effects were minimal.