Weather Control is a quest in Ohn'ahran Plains.
Weather Control Quest Guide
Initiate Boku instructs you to kill 8 Stormbound Essences and 6 Stormcaller Initiates to stop the Nokhud from creating more storm elementals. Once you have defeated all of the required enemies, speak to Boku at 60.64, 63.55 to complete the quest.
Weather Control Quest Start
Weather Control is started by speaking to Initiate Boku at 58.10, 68.96 after completing Catching Wind.
Weather Control Quest End
Weather Control is completed by speaking to Initiate Boku at 60.64, 63.55.