There is a strong correlation between Caribbean hurricanes (and even Carib. TS) and landfalling US hurricanes. There was a dearth of Caribbean hurricanes in 2006-2015, except for the three years with a strong WAM (Sahel Jun-Sep rainfall>1 SD above normal) - 2008, 2010, and 2012

— Yaakov Cantor (@yconsor) September 19, 2021