31. The small storm moved west-northwestward due to the influence of the subtropical ridge to the north. 32. On July 23, a subtropical ridge to the northeast of Judy caused the system to turn northward. 33. On 14 February, Winston turned to the northeast as a subtropical ridge positioned itself to the north. 34. This circulation is known as the Hadley cell and leads to the formation of the subtropical ridge . 35. When the subtropical ridge position shifts due to El Nino, so will the preferred tropical cyclone tracks. 36. The northward movement of the Changma front is influenced by the development of the subtropical ridge . 37. Gradual weakening continued, and the typhoon steadily shifted its track to the northwest around the subtropical ridge . 38. Early on October 17, Megi started to moved westward and then west-southwestward because of the subtropical ridge . 39. After moving away from Reunion, Connie accelerated towards the south around a subtropical ridge situated near Amsterdam Island. 40. Later that day, the system began turning northward as it approached the western edge of the subtropical ridge .
