Halley_6a 06Z wind_speed 2018 8.7 6.4 13.3 8.7 10.5 12.7 11.0 10.4 9.5 4.6 12.3 12.2 2019 6.8 6.3 9.9 10.6 13.3 8.7 6.7 8.6 10.4 9.8 15.6 7.7 2020 9.4 9.7 7.4 13.1 6.8 8.9 8.9 3.9 11.1 12.2 16.1 11.8 2021 8.0 12.1 15.3 12.0 14.0 4.4 5.2 7.6 10.1 9.3 11.4 15.1 2022 9.3 9.7 10.4 13.7 14.3 13.4 10.7 3.4 8.2 10.2 5.0 - 2023 3.1 7.4 13.4 7.2 7.0 9.0 9.9 11.0 7.8 12.5 12.4 7.1 2024 9.6 10.8 11.2 13.4 - - - - - - - -