Grand Coulee Daily Forebay Elevation in Feet for Water Year 2023 Day Oct Nov Dec Jan Feb Mar 01 1283.10 1286.96 1278.84 1283.69 1273.27 1258.03 02 1283.01 1286.52 1278.58 1283.97 1272.48 1257.82 03 1282.77 1285.98 1278.71 1284.10 1272.12 1257.76 04 1282.52 1285.89 1279.12 1283.69 1272.10 1257.53 05 1282.24 1286.35 1279.02 1283.31 1272.11 1256.97 06 1282.10 1286.88 1278.85 1283.14 1271.94 1256.27 07 1282.36 1286.66 1278.64 1283.26 1271.67 1255.77 08 1282.46 1286.00 1278.52 1283.49 1270.87 1255.03 09 1282.73 1285.57 1278.48 1283.37 1270.19 1254.09 10 1283.33 1285.32 1278.90 1283.14 1269.92 1253.62 11 1283.43 1285.04 1279.46 1282.95 1269.76 1253.21 12 1283.56 1284.92 1279.76 1282.74 1269.53 1252.16 13 1283.43 1284.76 1279.71 1282.56 1269.30 1251.70 14 1283.38 1284.62 1279.69 1282.52 1268.78 1251.23 15 1283.72 1284.24 1279.60 1282.55 1268.11 1250.88 16 1283.77 1283.76 1279.47 1282.59 1267.49 1250.39 17 1283.98 1283.16 1279.57 1282.25 1266.96 1249.84 18 1284.10 1282.41 1279.59 1281.79 1266.46 1249.35 19 ---- 1281.74 1279.24 1281.29 1265.52 1248.78 20 1284.45 1281.46 1278.70 1280.64 1264.36 1248.17 21 1284.90 1281.32 1278.32 1280.02 1263.69 1247.94 22 1285.21 1281.17 1277.63 1279.58 1262.92 1247.60 23 1285.69 1280.97 1276.85 1279.10 1262.10 1247.43 24 1286.06 1280.49 1276.61 1278.67 1261.43 1246.95 25 1286.40 1280.31 1277.16 1278.02 1261.02 1246.72 26 1286.50 1280.11 1277.74 1277.77 1260.41 1246.30 27 1286.64 1279.84 1278.68 1277.45 1259.54 1245.79 28 1286.64 1279.59 1279.76 1276.76 1258.79 1245.63 29 1286.81 1279.25 1281.21 1275.98 1245.13 30 1287.29 1279.30 1282.40 1274.89 1244.92 31 1287.48 1283.26 1274.11 1244.48 Day Apr May Jun Jul Aug Sep 01 1243.94 1247.45 1282.10 1286.41 1283.16 1277.09 02 1243.56 1248.74 1283.13 1286.78 1283.08 1277.27 03 1243.15 1249.87 1283.80 1287.20 1283.19 1277.12 04 1242.81 1251.29 1284.28 1287.58 1283.15 1277.16 05 1242.39 1253.10 1284.43 1288.18 1282.90 1277.10 06 1241.98 1255.39 1284.60 1288.82 1283.06 1277.16 07 1241.33 1258.09 1284.80 1289.02 1283.28 1277.49 08 1240.82 1259.91 1284.92 1289.01 1283.16 1277.80 09 1240.56 1261.16 1285.33 1289.39 1283.00 1278.13 10 1239.78 1261.96 1286.13 1289.32 1282.77 1278.10 11 1239.56 1262.85 1286.56 1289.10 1282.33 1278.26 12 1239.74 1263.72 1286.88 1288.59 1282.20 1278.52 13 1240.30 1264.26 1286.75 1288.07 1282.16 1278.82 14 1240.71 1264.72 1286.69 1287.69 1281.84 1279.18 15 1241.34 1264.84 1286.74 1287.19 1281.50 1279.54 16 1241.81 1265.30 1286.59 1286.63 1281.14 1279.69 17 1241.99 1265.43 1286.55 1286.36 1280.59 1279.60 18 1241.96 1265.87 1286.49 1286.50 1280.01 1279.65 19 1242.07 1266.43 1286.46 1286.62 1279.63 1279.88 20 1242.25 1267.33 1286.27 1286.46 1279.19 1280.11 21 1242.38 1268.65 1286.28 1286.20 1279.12 1280.37 22 1242.68 1270.47 1286.32 1285.76 1279.08 1280.59 23 1242.98 1272.21 1286.13 1285.25 1279.11 1280.95 24 1242.72 1273.73 1286.06 1284.88 1279.02 1281.09 25 1242.84 1274.97 1286.03 1284.68 1278.99 1281.28 26 1243.29 1275.86 1286.04 1284.40 1278.83 1281.59 27 1243.68 1276.84 1286.20 1284.13 1278.61 ---- 28 1244.32 1277.67 1286.42 1283.98 1278.37 ---- 29 1244.91 1278.78 1286.42 1283.76 1278.03 ---- 30 1245.92 1279.67 1286.28 1283.70 1277.61 ---- 31 1280.78 1283.49 1277.30