Preliminary ERA5 analysis puts summer 2023 (1 June - 31 Aug) on FIFTY (50) days of the Greenland High North American weather regime -- more than 2.4 times the 1979-2022 average! Since 1979, only the summer of 2012 had more GH days. https://t.co/D170csijRg pic.twitter.com/RiaNk5WmBB

— Dr Simon Lee (@SimonLeeWx) September 5, 2023