sentences:  Shortly after forming, the storm was located in a marginally favorable environment, with westerly wind shear and dry air approaching the depression and leaving the center of circulation exposed from the convection.However, the wind shear subsequently decreased, and early on August 23 the depression intensified into Tropical Storm Ignacio.The storm quickly organized and developed well-defined banding features and very well-organized upper-level outflow, and by late on August 23 a warm spot formed in the center of the convection.