MPA 12Z 700hPa height 1987 - - - - - - - - - - - 2887.9 1988 2843.0 2971.6 2925.4 2881.2 2893.2 2827.7 2889.2 2822.8 2890.4 2841.3 2830.2 2825.3 1989 2868.1 2916.4 2932.6 2825.2 2883.2 2831.4 2934.9 2905.4 2904.1 2902.4 2876.0 2860.4 1990 - 2984.4 2901.6 2788.5 2866.4 2815.8 2874.1 2790.0 2872.5 2832.0 2795.0 2842.0 1991 2944.6 2915.3 2871.2 2880.5 2792.4 2834.1 2840.5 2894.3 2869.4 2864.9 2837.6 2846.4 1992 2934.0 2876.0 2896.5 2919.2 2806.6 2840.3 2911.0 2891.1 2859.0 2812.8 2925.3 2922.0 1993 2849.9 2948.4 2898.9 2866.6 2851.9 2882.5 2845.3 2848.0 2864.0 2907.8 2887.1 2830.2 1994 2887.7 2863.4 2937.5 2868.5 2810.1 2839.6 2856.9 2864.0 2843.7 2834.4 2897.5 2871.2 1995 2938.0 2937.1 - 2947.9 2867.0 2757.6 2740.3 2787.4 - 2887.3 2886.1 2912.0 1996 2870.9 2899.4 2881.2 2869.0 2862.7 2827.0 2913.8 2847.2 2912.4 2877.4 2839.8 2936.0 1997 2897.0 2889.6 2953.0 2844.9 2928.3 2861.5 2792.1 2847.9 - - - - 1998 2850.7 2938.0 2917.7 3020.6 2948.5 2913.5 2777.5 2802.6 2881.6 2837.3 2874.9 2859.2 1999 2904.0 2874.6 2933.1 2937.4 2866.7 2874.7 2860.8 2858.1 2828.9 2873.8 2932.8 2872.8 2000 2878.1 2936.7 2901.3 2891.4 2925.0 2871.2 2840.5 2812.7 2865.7 2857.2 2841.8 2776.4 2001 2872.9 2842.1 2894.8 2842.3 2902.4 2844.9 2822.6 2878.1 2912.4 2951.5 2870.8 2923.2 2002 2921.3 2941.4 2863.8 2840.8 2819.1 2813.9 2860.2 2903.9 2879.5 2813.7 2831.6 2886.4 2003 2841.0 2900.3 2904.4 2928.8 2895.8 2793.4 2843.4 2897.7 2878.6 2835.0 2808.9 2841.1 2004 2923.8 3014.6 2923.5 2847.2 2935.2 2827.9 2858.9 2895.1 2813.5 2872.6 2958.6 2888.6 2005 2866.6 2987.2 2896.8 2842.1 2810.7 2820.7 2879.9 2882.7 2951.1 2889.8 2860.1 2872.3 2006 2890.6 2955.3 2885.1 2882.1 2932.4 2857.6 2830.9 2848.0 2856.4 2859.8 2847.9 2851.4 2007 2909.3 2871.4 2888.2 2848.1 2895.2 2787.5 2802.1 2868.0 2941.3 2836.0 2827.1 2877.3 2008 2912.6 2941.9 2945.6 2798.6 2869.5 2862.1 2872.1 2813.8 2976.2 2862.9 2863.0 2911.1 2009 - - - - - - - - - - - - 2010 - - - - - - - - - - - - 2011 - - 2967.0 - - - - - - - - - 2012 - - - - - - - - - - - - 2013 - - - - - - - - - - - - 2014 - - - - - - - - - - - - 2015 - - - - - - - - - - - - 2016 - - - - - - - - - - - - 2017 - - - - - - - - - - - - 2018 - - - - - - - - - - - - 2019 - - - - - - - - - - - - 2020 - - - - - - - - - - - - 2021 - - - - - - - - - - - - 2022 - - - - - - - - - - - - 2023 - - - - - - - - - - - - 2024 - - - - - - - - - - - -