Casey 12Z 850hPa height 1957 - - - 1164.2 1183.7 1192.0 1102.4 1115.0 1069.7 1119.8 1151.7 1236.0 1958 1182.7 1176.3 1127.0 1117.9 1186.7 1109.8 1180.1 1086.6 1054.3 1098.8 1120.6 1150.0 1959 1178.3 1147.6 1155.7 1144.7 1145.2 1152.7 1135.7 1112.8 1028.6 1103.6 1056.3 1219.7 1960 1151.3 1130.0 1033.6 1112.3 1107.7 1114.1 1096.4 1093.5 1018.6 1101.9 1130.3 1142.8 1961 1189.5 1232.4 1158.8 1115.7 1138.0 1163.8 - 1105.4 1143.6 1073.3 1126.7 1140.3 1962 1146.0 1127.3 1113.7 1087.9 1131.4 1171.1 1073.1 1066.1 1073.3 1075.8 1162.8 1153.5 1963 - - - - - - - - - - - - 1964 - 1163.9 1122.3 - - - - - 1033.5 1061.0 1190.7 1206.5 1965 1224.5 1258.4 1117.6 - - - - - - - - - 1966 1175.4 1188.0 1189.3 - - - - - - - - - 1967 - - - - - - - - - - - - 1968 - - - - - - - - - 1131.4 1177.6 1176.8 1969 1234.5 1192.9 - - - - - - - 1132.5 1122.3 1179.4 1970 1188.6 1143.8 1142.0 - - - - - - 1110.7 1142.5 1233.9 1971 1225.0 1184.6 1090.3 - - - - - - 1118.3 1155.7 1227.4 1972 1203.5 1168.6 1182.6 - - - - - - - 1117.3 1188.1 1973 1223.9 1166.3 1077.4 - - - - - - 1119.4 1139.3 1135.0 1974 1172.3 1150.0 1104.3 - - - - - - 1120.4 1174.1 1230.0 1975 1250.5 1173.8 1162.3 - - - - - - 1103.3 1127.6 1191.6 1976 1228.4 1158.6 1138.2 - - - - - - 1084.3 1182.8 1280.4 1977 1218.9 1152.3 1133.7 - - - - - - 1059.2 1067.5 - 1978 - - - - - - - - - - - - 1979 - - - - - - - - - - - - 1980 - - - - - - - - - - - - 1981 - - - - - - - - - - - - 1982 - - - - - - - - - - - - 1983 - - - - - - - - - - - - 1984 - - - - - - - - - - - - 1985 - - - - - - - - - - - - 1986 - - - - - - - - - - - - 1987 - - - - - - - - - - - - 1988 - - - - - 1213.6 1065.6 1104.2 1146.6 1178.4 1126.4 1149.4 1989 1209.0 1137.1 1122.6 1139.7 1028.1 1110.7 1052.3 1139.0 1108.8 1105.9 1132.4 1244.2 1990 1204.8 1141.9 1143.2 1212.3 1214.5 1160.7 1140.7 1091.6 1041.4 1134.5 1160.0 1182.9 1991 1148.5 1178.1 1112.4 1127.1 1111.7 1145.3 1196.0 1089.4 1073.7 1036.3 1167.7 1208.1 1992 1190.0 1221.7 1155.0 1118.2 1164.8 1204.3 1095.8 1090.7 1023.1 1105.4 1109.9 1161.5 1993 1208.0 1127.5 1127.5 1101.8 1050.3 1090.7 1030.0 1001.2 1046.6 1046.9 1096.3 1147.6 1994 1179.7 1122.1 1100.9 1117.6 1152.7 1229.5 1116.6 1050.5 1112.7 1082.9 1173.1 1120.9 1995 1160.9 1154.5 1137.9 1111.3 1075.2 1170.2 1273.0 1110.2 1021.6 1097.3 1164.4 1146.6 1996 1214.8 1189.0 1108.6 1129.7 1108.2 1163.1 1145.2 1124.3 1168.7 1066.7 1179.2 1190.3 1997 1175.0 1148.8 1098.0 1108.6 1109.9 1156.6 1068.0 1073.7 1088.3 1102.6 1199.6 1199.5 1998 1161.7 1136.5 1103.7 1041.7 1074.1 1109.5 1089.8 1106.9 1076.3 1094.6 1139.9 1124.4 1999 1173.8 1173.3 1155.3 1083.8 1070.5 1212.4 1103.8 1090.4 1107.0 1043.6 1121.2 1109.2 2000 1129.6 1126.9 1137.1 1164.1 1076.7 1129.0 1129.8 1134.4 1137.1 1058.5 1176.6 1228.0 2001 1177.4 1207.1 1125.2 1090.8 1165.0 1098.9 1130.9 1083.1 1040.9 1094.5 1144.2 1176.0 2002 1150.6 1121.6 1197.0 1121.9 1199.5 1167.9 1144.0 1056.5 1114.2 1171.5 1125.3 1140.9 2003 1217.8 1214.9 1144.4 1108.7 1128.4 1203.1 1075.1 1023.5 1097.0 1120.6 1125.4 1225.5 2004 1182.3 1180.1 1086.3 1104.9 1155.6 1081.9 - - - - - - 2005 - - - - - - - - - - - 1246.3 2006 1179.0 1156.5 1109.5 1154.4 1039.9 1094.4 1047.1 1180.7 1133.7 1065.1 1149.5 1149.3 2007 1195.7 1144.4 1167.8 1147.4 1183.7 1189.5 1233.7 1116.4 1131.7 1105.2 1156.5 1135.5 2008 1153.8 1130.4 1130.4 1148.4 1142.7 1107.5 1120.5 1078.1 1046.4 1051.3 1156.6 1149.6 2009 1150.6 1160.1 1126.8 1137.7 1151.6 1173.1 1159.8 1134.3 1130.6 1093.6 1165.8 1160.4 2010 1213.2 1191.6 1140.3 1121.9 1107.7 1100.7 1032.0 1042.2 1124.9 1072.5 1096.9 1222.4 2011 1222.8 1136.8 1160.5 1158.2 - - - - - - 1184.1 1105.9 2012 1119.1 1162.6 1117.2 1108.8 1096.6 1165.6 1062.2 1061.1 1056.4 1097.7 1184.9 1189.6 2013 1181.2 1115.7 1071.8 1097.7 1104.8 1174.0 1130.1 1148.1 1150.2 1113.7 1161.2 1174.0 2014 1186.9 1159.5 1107.7 1105.3 1174.9 1122.0 1062.6 1062.1 1125.4 1080.4 1159.1 1125.7 2015 1163.3 1106.4 1085.1 1070.2 1082.5 1131.4 1071.6 1078.8 1074.8 1105.9 1111.0 1172.3 2016 1131.9 1140.2 1039.7 1104.3 1099.3 1056.9 1093.5 1117.9 996.8 1085.0 1170.3 1204.3 2017 1210.8 1169.2 1146.9 - - 1091.4 1111.6 1085.6 1047.1 1104.3 1132.1 1150.1 2018 1142.0 1122.4 1133.3 1158.5 1134.0 1172.3 1112.6 1129.0 1032.3 1048.2 1093.5 1152.6 2019 1141.4 1168.4 1119.7 1124.1 1148.2 1106.1 1121.6 1125.3 1061.9 1119.4 1222.1 1236.5 2020 1198.4 1153.4 1084.8 1139.2 1121.9 1135.1 1140.2 1178.9 1127.4 1089.8 1146.4 1115.3 2021 1138.5 1119.8 1146.6 1082.3 1134.1 1111.4 1165.2 1100.6 1085.3 1127.1 1088.2 1155.3 2022 1161.2 1139.4 1107.7 1106.1 1152.3 1192.2 1118.9 1111.5 1087.2 1149.7 1041.7 1119.7 2023 1106.7 1121.9 1114.8 1159.7 1066.4 1174.4 1102.7 1032.4 1134.1 1119.0 1123.7 1117.9 2024 1151.4 1124.9 1098.9 1082.4 - - - - - - - -