Casey 12Z 500hPa wind_speed 1957 - - - 90.5 143.2 188.9 144.6 99.2 111.7 125.9 81.4 85.5 1958 73.5 67.7 97.3 74.0 80.9 106.4 144.5 87.8 106.7 96.5 98.5 90.5 1959 91.2 21.2 30.2 20.6 27.2 31.0 20.4 26.7 34.1 20.8 25.0 27.7 1960 21.5 24.5 30.1 27.6 30.6 25.7 29.2 30.5 28.7 23.9 23.7 22.9 1961 20.7 27.3 22.0 19.3 25.1 34.7 24.7 31.0 21.4 26.8 24.4 20.9 1962 21.0 20.9 16.8 30.4 32.1 25.8 33.1 23.6 22.1 27.8 28.9 17.8 1963 - - - - - - - - - - - - 1964 - 19.9 24.8 - - - - - 26.4 22.2 21.0 17.2 1965 19.8 27.5 25.3 - - - - - - - - - 1966 16.9 24.8 18.5 - - - - - - - - - 1967 - - - - - - - - - - - - 1968 - - - - - - - - - 25.1 20.8 19.2 1969 21.3 17.3 - - - - 32.0 29.1 29.2 28.7 18.7 25.1 1970 31.0 17.8 23.9 24.2 26.0 30.4 18.4 26.1 25.9 20.0 24.0 24.9 1971 16.2 30.3 19.3 24.8 29.3 29.5 24.7 29.9 33.4 19.3 21.1 20.0 1972 22.0 24.9 26.4 25.0 22.6 34.4 30.2 35.1 30.3 36.0 22.3 21.6 1973 19.2 20.8 24.0 30.4 30.6 26.0 21.1 27.1 32.9 28.7 22.4 18.8 1974 20.0 21.8 21.9 29.5 31.5 37.4 29.0 30.0 33.1 32.1 21.9 18.5 1975 20.7 16.7 33.1 32.4 23.0 27.6 27.3 30.5 31.4 29.2 29.3 18.0 1976 20.7 11.4 13.4 17.4 13.8 16.0 18.3 17.2 16.2 11.4 13.9 10.0 1977 21.4 16.2 17.9 24.3 15.2 20.6 19.2 - 17.6 23.1 20.3 16.3 1978 11.6 17.3 20.4 22.4 22.2 28.7 23.0 19.3 17.6 22.4 21.8 18.3 1979 15.5 22.6 16.2 22.8 20.4 22.3 21.5 28.5 23.0 20.1 27.5 16.4 1980 16.3 21.5 18.6 18.3 23.0 19.5 29.2 23.8 24.9 21.7 20.2 18.6 1981 16.1 16.0 - - - - - - - - - - 1982 - - 28.7 23.4 20.4 25.7 28.5 21.1 28.1 20.7 16.8 15.9 1983 12.9 16.3 32.1 24.6 26.1 26.8 22.8 28.6 26.3 21.4 16.6 20.8 1984 17.0 18.0 15.6 25.6 26.8 23.5 26.0 32.8 25.6 28.2 20.6 18.2 1985 20.3 19.1 19.0 19.8 25.3 24.0 31.8 20.0 20.3 19.6 25.6 19.7 1986 22.1 24.7 17.8 15.1 28.1 34.5 26.5 21.7 25.8 23.5 19.0 17.2 1987 19.8 16.1 - - - - - - - - - - 1988 - - - - - 16.8 27.0 29.6 36.8 26.4 21.2 - 1989 - - - - - - - - - - - - 1990 - - - - - - - - - - - - 1991 17.0 21.6 18.8 24.1 25.6 29.1 27.4 19.6 27.3 23.6 23.5 18.1 1992 17.4 22.5 17.4 24.2 35.2 24.8 28.9 30.2 31.1 22.7 26.2 17.5 1993 23.6 20.5 20.7 18.2 28.6 27.8 27.0 20.6 27.5 22.8 15.8 17.8 1994 22.0 13.3 18.6 21.0 30.9 24.5 23.1 22.0 23.3 24.0 12.6 21.3 1995 18.2 18.7 19.5 27.4 20.5 26.5 31.2 17.8 21.1 29.3 19.7 22.7 1996 20.2 18.7 20.9 22.6 21.3 36.7 21.4 26.8 24.5 16.7 17.0 16.6 1997 14.3 22.6 23.1 24.8 26.3 23.8 25.1 21.3 24.9 18.8 15.9 26.6 1998 15.5 15.2 27.5 24.5 20.3 20.8 27.4 28.6 22.4 18.7 22.1 17.5 1999 11.6 14.8 24.2 36.0 38.7 20.7 18.7 21.0 18.6 27.9 17.0 16.9 2000 16.6 22.7 20.1 20.6 24.4 22.3 29.3 23.9 21.4 18.4 20.4 14.7 2001 17.7 19.2 21.0 22.7 23.4 24.6 25.8 21.8 20.2 20.7 29.0 30.3 2002 20.7 27.8 21.7 29.7 27.1 21.5 20.6 19.4 20.0 21.0 18.1 24.0 2003 15.0 28.7 19.6 21.4 33.5 36.2 26.2 24.5 22.7 21.7 24.2 19.2 2004 17.3 17.6 25.6 27.8 26.6 17.6 - - - - - - 2005 - - - - - - - - - - - 17.7 2006 12.1 15.7 17.7 25.4 24.5 18.5 24.2 21.1 36.8 24.9 24.9 17.6 2007 17.0 15.8 14.5 26.2 30.1 23.4 23.0 19.4 28.3 20.5 19.9 18.6 2008 12.4 21.3 22.5 29.5 16.7 18.2 26.9 24.6 23.4 22.6 34.2 24.7 2009 12.2 22.2 18.4 20.1 21.3 28.9 34.5 24.3 22.9 21.6 20.5 14.4 2010 19.5 19.1 20.7 23.6 18.5 24.3 30.2 25.8 22.8 16.2 18.5 23.4 2011 18.2 17.4 25.7 25.3 - - - - - - 19.8 18.1 2012 17.5 17.7 15.6 22.3 25.2 32.6 21.6 22.1 22.6 24.1 21.6 22.8 2013 20.6 19.6 18.5 31.1 20.8 24.6 28.3 23.2 26.4 20.2 26.7 14.3 2014 20.5 15.7 24.3 16.0 28.8 27.8 22.7 28.6 22.0 24.8 21.1 16.0 2015 16.3 16.9 19.6 31.2 26.6 30.3 27.1 33.6 25.2 17.2 21.1 15.4 2016 17.6 14.5 21.2 22.1 21.6 20.3 25.2 21.5 19.3 20.1 18.6 11.6 2017 19.1 17.6 17.4 - - 31.0 32.8 24.7 23.4 17.0 16.2 14.3 2018 16.8 23.1 22.5 20.8 23.6 20.2 24.9 24.3 22.0 27.4 17.1 14.0 2019 14.5 17.3 11.6 19.2 25.5 22.9 23.1 25.1 25.9 22.5 17.6 14.2 2020 19.0 20.4 25.8 20.4 26.1 23.2 27.7 27.2 25.2 20.9 14.6 16.8 2021 16.7 14.0 22.0 27.4 19.2 21.2 28.5 23.9 26.8 27.8 23.2 25.8 2022 14.6 17.1 24.8 24.4 26.6 24.7 30.9 21.9 28.2 23.3 13.7 16.7 2023 10.6 20.9 24.1 17.1 23.7 27.2 25.2 21.3 25.0 27.3 23.0 19.5 2024 26.0 14.7 22.8 34.5 38.6 30.7 21.5 26.5 18.8 26.7 19.2 23.5 2025 19.1 18.7 17.7 21.3 22.9 19.3 18.9 21.0 24.0 29.7 24.4 15.1 2026 16.8 15.6 28.5 22.5 32.0 24.4 21.6 30.1 23.1 - - -