MPA 00Z 700hPa height 1987 - - - - - - - - - - - 2866.8 1988 2840.2 2971.5 2942.9 2880.8 2904.7 2841.6 2897.9 2823.7 2877.0 2843.3 2822.2 2818.9 1989 2875.5 2912.3 2938.7 2817.4 2867.9 2834.4 2937.7 2914.3 2900.9 2886.8 2871.9 2858.3 1990 - 2975.9 2901.7 2787.5 2886.0 2815.3 2883.2 2788.1 2872.2 2829.9 2794.1 2843.1 1991 2938.8 2907.6 2866.4 2877.0 2803.7 2836.3 2861.0 2896.8 2873.3 2852.8 2849.2 2840.4 1992 2942.5 2877.1 2895.0 2938.2 2812.3 2852.0 2897.4 2892.6 2861.1 2821.5 2906.1 2922.7 1993 2847.2 2944.2 2907.1 2877.5 2850.1 2881.5 2844.7 2858.2 2875.4 2915.8 2892.2 2826.9 1994 2905.9 2866.4 2925.8 2875.0 2796.1 2840.1 2843.8 2863.8 2853.7 2839.7 2894.7 2863.6 1995 2921.8 2928.0 - 2946.8 2861.7 2757.0 2750.3 2799.0 - 2902.3 2879.9 2888.1 1996 2872.7 2899.4 2896.1 2856.5 2851.6 2839.0 2893.1 2843.6 2897.9 2878.0 2849.1 2934.4 1997 2902.8 2879.9 2945.5 2850.2 2930.6 2869.0 2812.6 2857.9 - - - - 1998 2854.9 2973.6 2922.9 2989.3 2954.9 2930.3 2785.1 2805.5 2877.2 2837.5 2882.4 2855.3 1999 2892.3 2867.2 2928.0 2943.6 2856.3 2861.8 2860.0 2857.4 2837.8 2881.5 2933.2 2874.7 2000 2883.2 2937.4 2904.7 2892.1 2939.7 2880.6 2861.7 2826.4 2886.0 2853.3 2847.7 2777.6 2001 2867.4 2843.8 2885.9 2841.2 2897.3 2841.7 2815.9 2883.8 2916.5 2961.8 2871.5 2935.0 2002 2915.9 2939.3 2858.9 2862.9 2821.6 2817.8 2862.0 2912.1 2904.3 2811.4 2833.4 2901.3 2003 2844.5 2904.9 2911.2 2921.8 2899.6 2798.0 2835.0 2896.8 2880.1 2845.5 2816.2 2839.7 2004 2924.9 3009.5 2933.6 2852.7 2929.9 2841.9 2844.1 2882.0 2822.6 2882.3 2957.0 2884.0 2005 2856.0 2990.9 2905.5 2859.1 2814.2 2854.6 2881.9 2872.1 2949.9 2895.8 2857.9 2880.5 2006 2894.4 2956.7 2888.0 2877.0 2931.2 2868.2 2830.4 2854.0 2857.1 2886.2 2853.4 2851.8 2007 2895.1 2863.3 2890.2 2844.7 2932.6 - - - 2942.9 2847.5 2819.8 2881.0 2008 2919.6 2942.4 2945.2 2813.1 2898.4 2868.7 2875.8 2810.9 2974.9 2887.3 2842.4 2919.2 2009 2918.9 2881.8 2892.4 2830.5 2807.0 2841.8 2823.9 2836.1 2892.6 2833.6 2782.9 2878.2 2010 2840.9 2855.3 2912.0 2881.8 2886.6 2836.6 2869.5 2872.3 2882.4 2918.5 2927.0 2815.9 2011 2903.6 2976.3 2913.3 2835.7 2882.1 2835.1 2836.7 2879.0 2875.6 2916.4 2896.5 2956.6 2012 2928.3 2865.5 2915.8 2864.5 2859.1 2761.8 2787.7 2923.2 2889.1 2837.5 2869.6 2818.6 2013 2938.7 2905.6 2953.6 2957.3 2832.4 2779.7 2837.1 2815.5 2922.3 2892.9 2838.9 2823.6 2014 2829.2 2907.1 2860.8 2923.3 2881.1 2850.8 2887.3 2861.6 2861.6 2873.1 2848.3 2843.3 2015 2891.4 2912.3 2927.3 2900.2 2876.9 2780.9 2798.7 2854.8 2820.6 2925.0 2884.6 2865.4 2016 2895.2 2895.7 2953.5 2879.7 2999.3 2936.6 2907.3 2845.6 2977.7 2932.4 2857.2 2846.3 2017 2848.9 2960.7 2947.2 2892.2 2908.6 2796.6 2851.5 2864.1 2879.7 2818.9 2840.2 2850.9 2018 2894.7 2942.3 2878.7 2841.9 2886.8 2840.6 2900.4 2873.1 2868.2 2867.8 2880.4 2898.3 2019 2847.8 2869.1 2942.9 2869.7 2855.5 2856.6 2872.6 2860.2 2849.2 2896.6 2859.9 2864.1 2020 2858.8 2926.8 2953.9 2932.2 2903.0 2847.7 2871.1 2822.8 2846.1 2870.1 - 2863.3 2021 - 2944.2 2932.1 2963.1 2925.3 2927.5 - 2846.7 2916.1 2848.4 2900.9 2960.5 2022 2919.1 - - 2837.2 2896.7 2866.7 2810.4 2879.6 2926.8 2907.7 2950.2 2913.0 2023 2937.1 2941.8 2864.1 2865.9 2846.3 2840.3 2882.5 2815.4 2862.6 2808.7 2832.8 2879.8 2024 2913.9 2948.3 2864.1 2852.2 - - - - - - - -