Rothera 12Z 500hPa height 1999 - - - - - - - - - - - - 2000 - - - - - - - - - - - - 2001 - - - - - - - - - - - - 2002 - - - 5121.5 5136.8 - - - - - - - 2003 - - - 5239.3 5065.3 5093.8 4970.4 5028.2 5064.6 5087.1 5034.0 5135.8 2004 5128.2 5197.6 5113.2 5142.0 5112.8 5084.1 5022.1 4925.8 4912.7 5065.9 5058.8 5188.8 2005 5155.3 5078.4 5089.8 5074.3 5158.1 5092.4 5101.3 - 5143.9 - 5130.9 5130.9 2006 5168.2 5208.2 5020.1 5118.6 4979.2 5164.5 5052.6 5164.2 5036.7 5089.6 5064.9 5096.3 2007 5222.6 5166.1 5129.1 5122.6 - - - - 5066.4 4954.0 5120.1 5102.3 2008 5149.6 5139.0 5169.1 5057.4 5130.6 5105.8 5108.7 5052.4 5155.4 5025.8 5045.2 5009.4 2009 5113.2 5140.2 5118.8 5087.4 5054.1 5045.8 5093.7 5150.8 5014.9 4919.9 5065.9 5106.3 2010 5173.8 5234.4 5079.3 5008.5 5029.7 4968.4 5035.1 5038.6 5061.8 4995.4 5026.2 5064.2 2011 5165.2 5095.4 5167.0 5050.1 5040.3 5040.2 5113.9 5159.8 5073.1 5034.5 5102.6 5113.4 2012 5115.8 5072.6 5184.1 5145.2 5128.3 4929.4 5032.3 5003.8 5105.1 5006.5 5055.6 5198.6 2013 5187.4 5136.7 5188.9 5075.0 5047.3 4942.9 5005.2 4995.6 5031.4 5018.3 4972.9 5092.8 2014 5175.8 5121.1 5066.3 5183.6 5154.8 5109.4 5047.1 5130.8 5155.2 5001.1 4980.4 5070.8 2015 5182.9 5139.5 5103.2 5091.6 5152.9 4961.3 4946.9 4887.7 4937.9 5071.3 5019.9 5114.2 2016 5172.7 5133.5 5062.4 5050.1 5281.6 5088.3 5113.8 5031.6 5003.8 5139.9 5079.7 5163.1 2017 5143.5 5237.4 5302.6 5193.7 5085.1 5010.6 4984.7 5040.3 4800.8 5010.9 5094.0 5063.4 2018 5122.0 5134.2 - 5071.0 5038.8 5082.9 5071.8 5019.6 5004.4 5183.2 4981.5 5081.8 2019 5131.6 5199.2 5137.6 5077.3 5081.8 5127.4 5197.3 5156.7 5074.0 5042.3 5113.0 5206.2 2020 5207.3 5266.9 5101.9 5088.5 5192.8 5128.9 5181.8 5011.6 5024.2 4999.5 4996.0 5073.5 2021 5131.9 5135.4 5120.9 5056.0 5126.7 5132.4 5115.5 4932.9 4946.4 4968.5 5045.5 5025.6 2022 5163.8 5121.7 5148.0 5105.9 5150.9 5033.6 5059.7 5055.4 5015.6 4955.0 4984.6 5094.2 2023 5086.0 5141.4 5036.4 5084.1 5025.7 5129.7 5073.1 4950.5 5168.1 4983.8 5010.0 5106.3 2024 5106.2 5139.0 5156.0 5014.5 - - - - - - - -