Halley_6a 00Z wind_speed 2018 7.6 6.9 12.5 8.7 11.5 12.2 11.2 10.3 9.1 5.5 11.2 13.0 2019 6.7 7.3 9.9 11.2 13.6 9.3 7.3 8.4 10.7 9.8 13.9 8.8 2020 9.0 9.6 8.6 14.7 6.4 10.6 9.6 3.7 11.9 13.1 13.8 11.0 2021 7.8 10.9 14.7 11.1 13.3 4.3 5.0 7.8 11.4 9.2 10.4 15.3 2022 8.7 11.6 10.4 12.8 13.8 13.1 11.0 3.4 7.1 9.3 4.9 - 2023 3.0 8.1 11.7 6.4 8.1 10.4 7.8 12.1 7.8 11.5 11.8 7.3 2024 9.6 11.1 11.8 12.0 - - - - - - - -