Casey 12Z 500hPa height 1957 - - - 5065.0 5045.7 5057.3 4951.4 4954.2 4898.3 5021.4 5050.8 5190.4 1958 5154.4 5083.8 5030.3 4998.4 5106.9 4917.2 5037.1 4891.7 4831.8 4933.6 5004.3 5075.2 1959 5123.8 5090.0 5097.5 5039.7 5009.7 4976.4 4942.2 4934.3 4797.9 4975.2 4921.5 5180.0 1960 5107.7 5073.8 4905.4 4971.0 4962.7 4956.2 4891.4 4924.2 4844.3 4931.9 5023.7 5080.7 1961 5124.5 5203.2 5060.4 4990.0 5005.0 5030.8 - 4974.6 - - 5046.4 5056.7 1962 5053.8 5062.3 5007.0 4965.5 4968.9 5030.0 4883.1 4888.3 4906.5 4928.4 5066.2 5059.7 1963 - - - - - - - - - - - - 1964 - 5098.9 5023.0 - - - - - 4830.0 4903.0 5098.9 5171.0 1965 5185.2 5209.2 5025.2 - - - - - - - - - 1966 5134.6 5155.4 5153.8 - - - - - - - - - 1967 - - - - - - - - - - - - 1968 - - - - - - - - - 4986.1 5083.1 5103.9 1969 5197.7 5142.9 - - - - - - - 4993.2 5004.3 5108.7 1970 5157.9 5080.0 5065.6 - - - - - - 4958.3 5049.6 5199.6 1971 5220.0 5147.5 4971.7 - - - - - - 4969.3 5062.1 5190.6 1972 5184.5 5105.2 5098.7 - - - - - - - 5008.3 5147.1 1973 5183.2 5082.2 4987.4 - - - - - - 4993.9 5058.7 5062.1 1974 5134.8 5076.3 4999.3 - - - - - - 5012.6 5088.6 5200.0 1975 5235.0 5122.7 5099.7 - - - - - - 4969.3 5026.9 5126.0 1976 5211.0 5107.6 5058.6 - - - - - - 4950.7 5100.0 5270.0 1977 5213.9 5117.2 5041.0 - - - - - - 4842.3 4941.2 - 1978 - - - - - - - - - - - - 1979 - - - - - - - - - - - - 1980 - - - - - - - - - - - - 1981 - - - - - - - - - - - - 1982 - - - - - - - - - - - - 1983 - - - - - - - - - - - - 1984 - - - - - - - - - - - - 1985 - - - - - - - - - - - - 1986 - - - - - - - - - - - - 1987 - - - - - - - - - - - - 1988 - - - - - 5105.8 4912.2 4960.0 5032.7 5056.0 5010.0 5075.3 1989 5162.3 5076.1 5012.9 5019.0 4878.1 4961.7 4907.7 4995.9 4985.4 4983.1 5014.8 5263.5 1990 5183.5 5095.9 5067.7 5128.7 5101.9 4986.1 5027.6 4928.7 4870.9 4984.8 5071.3 5161.0 1991 5082.9 5149.0 5050.6 5035.3 4985.2 5051.4 5112.4 4962.4 4905.9 4898.5 5104.3 5148.8 1992 5163.1 5177.9 5087.8 4984.0 5048.1 5113.9 4943.7 4953.3 4835.3 4967.3 5008.5 5082.8 1993 5175.2 5074.6 5043.9 4971.6 4879.9 4926.6 4876.3 4826.5 4889.1 4882.3 4973.9 5057.4 1994 5145.6 5052.7 5009.5 4963.0 5020.1 5148.1 4976.6 4869.9 4989.4 4918.9 5068.8 5030.6 1995 5097.1 5082.7 5054.1 4986.5 4935.2 5030.3 5205.8 4971.8 4855.6 4947.5 5090.8 5098.3 1996 5178.9 5132.1 5014.3 5029.7 4942.4 5059.7 5033.7 5016.3 5048.1 4929.0 5090.9 5128.2 1997 5120.5 5080.0 5016.1 4968.3 4983.8 5042.3 4886.9 4899.4 4910.4 4939.2 5130.9 5147.0 1998 5097.8 5082.1 4997.5 4912.7 4931.3 4965.4 4943.5 4984.7 4931.1 4937.2 5064.5 5046.4 1999 5092.8 5121.3 5064.4 4926.9 4909.0 5084.5 4933.0 4935.5 4931.8 4908.1 5012.7 5028.2 2000 5081.4 5057.6 5034.4 5060.6 4919.7 4999.1 4978.0 4982.5 5019.7 4877.5 5118.5 5181.2 2001 5147.6 5190.8 5056.3 4958.6 5033.5 4951.5 4996.1 4896.6 4889.3 4954.8 5042.6 5149.8 2002 5105.0 5065.7 5158.5 5049.2 5131.6 5064.9 5019.0 4896.0 4949.9 5047.8 5028.3 5093.1 2003 5197.2 5215.6 5069.1 4985.8 4994.4 5058.8 4911.7 4862.5 4951.7 4965.9 5041.6 5188.5 2004 5159.7 5121.8 4989.4 4986.3 5030.5 4947.9 - - - - - - 2005 - - - - - - - - - - - 5242.2 2006 5131.2 5082.9 5019.9 5063.1 4852.3 4925.4 4895.4 5031.9 5011.9 4924.9 5066.9 5088.4 2007 5164.9 5083.5 5079.7 5063.9 5094.4 5078.4 5127.7 4991.2 4985.3 4955.7 5081.3 5052.8 2008 5084.0 5068.6 5023.2 5048.7 5041.2 4946.0 4974.4 4910.1 4866.2 4891.1 5086.5 5105.7 2009 5100.5 5122.8 5046.3 5006.7 5022.9 5036.6 5073.8 4982.0 5007.1 4956.8 5073.7 5090.3 2010 5187.8 5136.5 5070.4 5001.6 4952.6 4953.6 4860.3 4868.1 4988.8 4927.6 4986.5 5174.2 2011 5212.1 5028.2 5097.4 5066.9 - - - - - - 5086.5 5025.5 2012 5066.7 5088.3 5021.4 5010.2 4946.8 5020.3 4868.6 4893.0 4866.8 4970.5 5106.2 5127.6 2013 5152.6 5062.9 4957.0 4966.6 4976.7 5055.6 4969.8 4985.9 5075.3 4956.9 5107.5 5109.7 2014 5160.6 5095.8 4976.3 4958.4 5063.6 4963.5 4910.3 4879.3 4983.4 4938.1 5092.9 5053.1 2015 5126.2 5045.7 4999.7 4942.3 4925.6 5000.7 4902.1 4928.3 4910.7 4933.6 5030.7 5128.3 2016 5078.6 5050.0 4941.9 4983.7 4997.4 4885.9 4935.3 4962.7 4829.6 4955.2 5082.3 5152.0 2017 5180.7 5132.9 5043.8 - - 4933.1 4974.3 4913.2 4864.6 4947.4 5051.4 5093.8 2018 5094.2 5072.1 5022.6 5075.0 4987.4 5040.0 4989.0 4964.2 4859.7 4893.2 4974.0 5068.7 2019 5079.4 5128.2 5019.7 5023.5 5000.0 4978.2 5010.0 4986.7 4889.7 4985.2 5147.9 5197.7 2020 5177.7 5095.2 4980.7 5061.9 5004.0 4999.7 5039.0 5040.3 5010.4 4991.0 5074.1 5043.7 2021 5074.5 5064.6 5068.7 4954.6 4980.3 4933.8 5021.0 4984.3 4944.3 5021.0 4967.3 5131.5 2022 5099.0 5080.4 5017.3 4979.6 5043.0 5092.5 4981.4 4964.5 4951.5 5029.2 4925.5 5057.4 2023 5049.7 5086.8 5054.3 5043.3 4903.2 5034.1 4926.7 4819.7 5018.2 4967.6 5020.4 5067.7 2024 5116.7 5040.0 5001.3 4948.3 - - - - - - - -