As a result of the tropical anomalous westerlies, the ULAC did not form until just now. As the ULAC typically amplifies as summer progresses, climatology now favors easterly shear. Anomalous westerlies will reduce the shear vector, creating a favorable environment for TCs. pic.twitter.com/ZRATUr1d5X

— Dante Grasso (@Yellow_Evan) June 9, 2023