These years all had ++SST in the N. Atl btwn Greenland and the Azores, and a cold tongue in the e/c. subtropics. This configuration tends to lead to enhanced easterlies in the subtropics, bringing frequent intrusions of dry air into the MDR and making TC formation there difficult pic.twitter.com/GhqRn26Q6v

— Yaakov Cantor (@yconsor) December 1, 2022