Halley_6a 18Z wind_speed 2018 8.0 7.7 14.1 9.0 12.7 12.6 10.9 10.1 9.6 7.1 12.4 14.7 2019 7.7 8.1 10.7 11.7 13.5 9.1 7.7 7.8 11.0 10.0 17.2 7.8 2020 10.5 10.5 8.4 14.3 6.6 9.1 9.4 4.0 14.8 13.4 14.8 12.0 2021 9.3 11.6 15.8 10.6 12.3 5.3 4.5 8.3 12.0 9.3 11.4 16.0 2022 10.0 10.4 10.2 12.3 13.5 13.8 11.7 3.6 8.2 9.5 5.0 - 2023 3.9 6.9 11.8 7.1 7.1 10.5 8.1 11.8 8.1 12.9 12.5 8.3 2024 8.9 11.9 12.2 - - - - - - - - -