Rothera 12Z 850hPa height 1999 - - - - - - - - - - - - 2000 - - - - - - - - - - - - 2001 - - - 1121.1 - - - - - - - - 2002 - - - 1156.6 1232.5 - - - - - - - 2003 - - - 1239.8 1184.1 1218.8 1097.5 1128.1 1164.6 1143.1 1135.1 1214.2 2004 1168.7 1220.5 1138.9 1194.9 1172.8 1152.9 1145.7 1091.1 1041.7 1136.2 1144.4 1217.4 2005 1165.5 1104.4 1138.0 1120.3 1203.6 1198.2 1188.4 - 1199.4 - 1177.1 1210.8 2006 1182.7 1202.1 1050.4 1189.6 1100.2 1245.4 1168.7 1254.0 1148.2 1153.8 1134.0 1140.4 2007 1212.6 1195.1 1169.5 1195.3 - - - - 1182.5 1086.6 1197.4 1136.6 2008 1171.3 1169.6 1197.9 1140.8 1210.3 1180.3 1207.9 1169.3 1221.2 1099.5 1114.6 1080.9 2009 1148.5 1176.7 1151.6 1163.9 1128.3 1143.4 1205.6 1261.9 1135.9 1054.5 1157.3 1165.3 2010 1210.6 1223.1 1126.8 1083.0 1097.6 1078.9 1144.0 1143.8 1132.1 1073.5 1104.9 1119.0 2011 1211.2 1126.8 1194.3 1140.8 1130.2 1163.2 1226.3 1253.4 1185.6 1106.8 1166.4 1133.2 2012 1146.0 1124.7 1182.5 1183.4 1182.4 1057.9 1135.3 1115.2 1182.8 1104.8 1135.4 1229.4 2013 1185.9 1164.9 1189.5 1116.2 1131.7 1078.2 1128.6 1143.8 1169.0 1103.3 1088.1 1172.3 2014 1207.5 1162.2 1122.4 1208.6 1183.4 1175.2 1162.4 1222.3 1231.2 1080.7 1076.9 1128.3 2015 1196.4 1159.0 1126.8 1143.9 1195.7 1109.3 1109.9 1047.1 1061.8 1157.0 1095.9 1153.0 2016 1183.8 1143.5 1089.4 1132.8 1273.6 1162.4 1207.3 1166.7 1105.1 1185.8 1140.9 1218.9 2017 1187.9 1239.1 1280.4 1224.6 1150.7 1134.1 1115.2 1147.8 996.4 1107.7 1156.9 1104.7 2018 1163.9 1132.2 - 1146.8 1144.6 1182.9 1147.5 1136.3 1133.4 1241.4 1063.6 1140.2 2019 1152.5 1193.2 1172.7 1138.2 1161.7 1192.4 1270.1 1228.6 1158.7 1130.7 1157.7 1231.3 2020 1195.8 1228.5 1153.8 1156.3 1233.0 1195.0 1265.4 1164.3 1118.6 1124.1 1078.4 1122.1 2021 1155.9 1133.8 1155.8 1121.9 1204.6 1191.5 1210.8 1086.1 1056.7 1057.3 1124.5 1086.3 2022 1181.1 1139.4 1195.5 1162.0 1183.6 1126.8 1155.3 1148.8 1099.5 1064.3 1054.6 1132.9 2023 1117.2 1162.0 1088.4 1148.8 1106.7 1226.3 1171.3 1120.4 1145.2 1089.4 1093.5 1139.3 2024 1150.0 1147.1 1176.4 1123.5 - - - - - - - -