MPA 12Z 50hPa height 1987 - - - - - - - - - - - 20471.0 1988 20663.7 20723.5 20605.8 20410.0 20297.6 19995.6 19900.0 19752.2 20107.9 19998.7 20425.2 20643.5 1989 20702.3 20694.8 20584.8 20348.5 20265.0 20090.0 20200.7 20092.0 20045.0 20025.2 20589.6 20561.9 1990 - 20697.1 20599.0 20385.5 20193.9 20016.4 20033.2 20018.1 19988.2 20256.5 20255.3 20393.0 1991 20679.6 20658.7 20575.6 20391.2 20153.0 19967.0 19990.4 19947.5 19923.5 19897.5 20476.4 20642.1 1992 20740.6 20658.4 20608.1 20499.0 20161.2 19922.7 20070.5 19986.3 19940.0 20264.1 20671.3 20617.7 1993 20602.1 20689.2 20545.0 20363.6 20301.4 20174.8 20070.0 19992.5 20163.0 20146.1 20357.2 20589.0 1994 20638.9 20623.2 20550.4 20305.0 19994.4 20052.9 19970.8 20017.3 19935.2 19986.7 20244.3 20704.4 1995 20714.4 20674.3 - 20475.6 20255.4 19989.7 19662.5 19776.1 - 20230.8 20255.7 20628.2 1996 20633.2 20610.0 20521.0 20366.4 20211.8 19998.8 20091.6 19965.5 20100.4 20293.5 20302.4 20397.1 1997 20654.6 20638.8 20612.8 20388.8 20276.9 20050.9 19912.3 19894.3 - - - - 1998 20617.1 20644.1 20531.0 20455.9 20163.1 20030.8 19872.1 19847.6 19874.8 20052.3 20518.8 20490.4 1999 20607.0 20600.4 20507.8 20405.4 20275.8 19942.5 19869.6 19983.2 19911.2 20095.2 20454.4 20556.1 2000 20560.7 20612.9 20552.9 20342.1 20259.2 20017.4 19844.3 19892.1 19774.5 19889.2 20556.5 20482.0 2001 20613.1 20593.2 20492.1 20351.4 20181.0 19893.8 19957.4 19936.0 20109.3 20202.5 20557.3 20566.5 2002 20561.7 20672.2 20475.2 20417.3 20089.3 19938.3 20091.0 19971.1 20084.6 20268.5 20326.2 20567.4 2003 20583.3 20662.6 20550.0 20385.8 20287.6 20017.8 19971.8 19947.0 19854.1 20210.0 20380.0 20509.0 2004 20635.2 20653.2 20560.0 20368.5 20215.2 20085.9 19955.7 19922.7 19842.2 20317.7 20457.9 20477.0 2005 20632.0 20680.8 20501.9 20334.1 20155.9 19888.2 20018.3 20007.0 20017.8 20173.0 20399.0 20542.5 2006 20646.0 20635.6 20555.2 20407.4 20272.5 20151.8 19958.4 19844.3 19966.9 20274.1 20451.5 20528.0 2007 20620.4 20585.7 20442.4 20261.3 20172.7 19884.8 19979.6 19990.4 19965.4 20116.4 20433.0 20639.6 2008 20606.4 20628.6 20562.4 20270.0 20117.5 20166.2 20040.8 19807.1 20078.6 20030.0 20429.5 20555.4 2009 - - - - - - - - - - - - 2010 - - - - - - - - - - - - 2011 - - 20615.0 - - - - - - - - - 2012 - - - - - - - - - - - - 2013 - - - - - - - - - - - - 2014 - - - - - - - - - - - - 2015 - - - - - - - - - - - - 2016 - - - - - - - - - - - - 2017 - - - - - - - - - - - - 2018 - - - - - - - - - - - - 2019 - - - - - - - - - - - - 2020 - - - - - - - - - - 20510.0 - 2021 - - - - - - - - - - - - 2022 - - - - - - - - - - - - 2023 - - - - - - - - - - - - 2024 - - - - - - - - - - - -