Persistent strong onshore flow in the mid-Atlantic is due to a slow-moving hybrid surface low (partially the remnants of #HurricaneIan) that will pinwheel in a Fujiwhara fashion around an upper low, while a strong high pressure system over Ontario/Quebec shifts SE. pic.twitter.com/DZzKNRM5PQ

— Yaakov Cantor (@yconsor) October 3, 2022