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Hydrograph River at a Glance Download
Big Sioux River at Sioux City Stage (ft)Flow (cfs)Observed: 11.18 ft at 2:15AM Sep 21, 2021Observed: 11.18 ft at 2:30AM Sep 21, 2021Observed: 11.18 ft at 2:45AM Sep 21, 2021Observed: 11.16 ft at 3:00AM Sep 21, 2021Observed: 11.17 ft at 3:15AM Sep 21, 2021Observed: 11.16 ft at 3:30AM Sep 21, 2021Observed: 11.17 ft at 3:45AM Sep 21, 2021Observed: 11.16 ft at 4:00AM Sep 21, 2021Observed: 11.16 ft at 4:15AM Sep 21, 2021Observed: 11.16 ft at 4:30AM Sep 21, 2021Observed: 11.16 ft at 4:45AM Sep 21, 2021Observed: 11.15 ft at 5:00AM Sep 21, 2021Observed: 11.16 ft at 5:15AM Sep 21, 2021Observed: 11.16 ft at 5:30AM Sep 21, 2021Observed: 11.15 ft at 5:45AM Sep 21, 2021Observed: 11.15 ft at 6:00AM Sep 21, 2021Observed: 11.14 ft at 6:15AM Sep 21, 2021Observed: 11.14 ft at 6:30AM Sep 21, 2021Observed: 11.14 ft at 6:45AM Sep 21, 2021Observed: 11.14 ft at 7:00AM Sep 21, 2021Observed: 11.13 ft at 7:15AM Sep 21, 2021Observed: 11.15 ft at 7:30AM Sep 21, 2021Observed: 11.14 ft at 7:45AM Sep 21, 2021Observed: 11.13 ft at 8:00AM Sep 21, 2021Observed: 11.13 ft at 8:15AM Sep 21, 2021Observed: 11.13 ft at 8:30AM Sep 21, 2021Observed: 11.12 ft at 8:45AM Sep 21, 2021Observed: 11.12 ft at 9:00AM Sep 21, 2021Observed: 11.11 ft at 9:15AM Sep 21, 2021Observed: 11.11 ft at 9:30AM Sep 21, 2021Observed: 11.12 ft at 9:45AM Sep 21, 2021Observed: 11.11 ft at 10:00AM Sep 21, 2021Observed: 11.1 ft at 10:15AM Sep 21, 2021Observed: 11.1 ft at 10:30AM Sep 21, 2021Observed: 11.08 ft at 10:45AM Sep 21, 2021Observed: 11.1 ft at 11:00AM Sep 21, 2021Observed: 11.09 ft at 11:15AM Sep 21, 2021Observed: 11.09 ft at 11:30AM Sep 21, 2021Observed: 11.07 ft at 11:45AM Sep 21, 2021Observed: 11.06 ft at 12:00PM Sep 21, 2021Observed: 11.08 ft at 12:15PM Sep 21, 2021Observed: 11.05 ft at 12:30PM Sep 21, 2021Observed: 11.04 ft at 12:45PM Sep 21, 2021Observed: 11.08 ft at 1:00PM Sep 21, 2021Observed: 11.05 ft at 1:15PM Sep 21, 2021Observed: 11.04 ft at 1:30PM Sep 21, 2021Observed: 11.06 ft at 1:45PM Sep 21, 2021Observed: 11.06 ft at 2:00PM Sep 21, 2021Observed: 11.05 ft at 2:15PM Sep 21, 2021Observed: 11.04 ft at 2:30PM Sep 21, 2021Observed: 11.06 ft at 2:45PM Sep 21, 2021Observed: 11.06 ft at 3:00PM Sep 21, 2021Observed: 11.06 ft at 3:02PM Sep 21, 2021Observed: 11.04 ft at 3:15PM Sep 21, 2021Observed: 11.04 ft at 3:17PM Sep 21, 2021Observed: 11.05 ft at 3:30PM Sep 21, 2021Observed: 11.05 ft at 3:32PM Sep 21, 2021Observed: 11.05 ft at 3:45PM Sep 21, 2021Observed: 11.04 ft at 4:00PM Sep 21, 2021Observed: 11.04 ft at 4:15PM Sep 21, 2021Observed: 11.04 ft at 4:30PM Sep 21, 2021Observed: 11.04 ft at 4:45PM Sep 21, 2021Observed: 11.05 ft at 5:00PM Sep 21, 2021Observed: 11.05 ft at 5:15PM Sep 21, 2021Observed: 11.05 ft at 5:30PM Sep 21, 2021Observed: 11.05 ft at 5:45PM Sep 21, 2021Observed: 11.03 ft at 6:00PM Sep 21, 2021Observed: 11.05 ft at 6:15PM Sep 21, 2021Observed: 11.03 ft at 6:30PM Sep 21, 2021Observed: 11.05 ft at 6:45PM Sep 21, 2021Observed: 11.05 ft at 7:00PM Sep 21, 2021Observed: 11.05 ft at 7:15PM Sep 21, 2021Observed: 11.05 ft at 7:30PM Sep 21, 2021Observed: 11.06 ft at 7:45PM Sep 21, 2021Observed: 11.06 ft at 8:00PM Sep 21, 2021Observed: 11.06 ft at 8:15PM Sep 21, 2021Observed: 11.06 ft at 8:30PM Sep 21, 2021Observed: 11.06 ft at 8:45PM Sep 21, 2021Observed: 11.05 ft at 9:00PM Sep 21, 2021Observed: 11.06 ft at 9:15PM Sep 21, 2021Observed: 11.06 ft at 9:30PM Sep 21, 2021Observed: 11.06 ft at 9:45PM Sep 21, 2021Observed: 11.05 ft at 10:00PM Sep 21, 2021Observed: 11.05 ft at 10:15PM Sep 21, 2021Observed: 11.04 ft at 10:30PM Sep 21, 2021Observed: 11.04 ft at 10:45PM Sep 21, 2021Observed: 11.04 ft at 11:00PM Sep 21, 2021Observed: 11.04 ft at 11:01PM Sep 21, 2021Observed: 11.05 ft at 11:15PM Sep 21, 2021Observed: 11.05 ft at 11:16PM Sep 21, 2021Observed: 11.05 ft at 11:30PM Sep 21, 2021Observed: 11.05 ft at 11:31PM Sep 21, 2021Observed: 11.03 ft at 11:45PM Sep 21, 2021Observed: 11.05 ft at 12:00AM Sep 22, 2021Observed: 11.04 ft at 12:15AM Sep 22, 2021Observed: 11.04 ft at 12:30AM Sep 22, 2021Observed: 11.04 ft at 12:45AM Sep 22, 2021Observed: 11.04 ft at 1:00AM Sep 22, 2021Observed: 11.04 ft at 1:15AM Sep 22, 2021Observed: 11.03 ft at 1:30AM Sep 22, 2021Observed: 11.04 ft at 1:45AM Sep 22, 2021Observed: 11.03 ft at 2:00AM Sep 22, 2021Observed: 11.03 ft at 2:15AM Sep 22, 2021Observed: 11.02 ft at 2:30AM Sep 22, 2021Observed: 11.03 ft at 2:45AM Sep 22, 2021Observed: 11.04 ft at 3:00AM Sep 22, 2021Observed: 11.03 ft at 3:15AM Sep 22, 2021Observed: 11.03 ft at 3:30AM Sep 22, 2021Observed: 11.01 ft at 3:45AM Sep 22, 2021Observed: 11.01 ft at 4:00AM Sep 22, 2021Observed: 11.03 ft at 4:15AM Sep 22, 2021Observed: 11.02 ft at 4:30AM Sep 22, 2021Observed: 11.01 ft at 4:45AM Sep 22, 2021Observed: 11.04 ft at 5:00AM Sep 22, 2021Observed: 11.03 ft at 5:15AM Sep 22, 2021Observed: 11.03 ft at 5:30AM Sep 22, 2021Observed: 11.02 ft at 5:45AM Sep 22, 2021Observed: 11.02 ft at 6:00AM Sep 22, 2021Observed: 11.03 ft at 6:15AM Sep 22, 2021Observed: 11.02 ft at 6:30AM Sep 22, 2021Observed: 11.02 ft at 6:45AM Sep 22, 2021Observed: 11.03 ft at 7:00AM Sep 22, 2021Observed: 11.02 ft at 7:15AM Sep 22, 2021Observed: 11.02 ft at 7:30AM Sep 22, 2021Observed: 11.02 ft at 7:45AM Sep 22, 2021Observed: 11.02 ft at 8:00AM Sep 22, 2021Observed: 11.03 ft at 8:15AM Sep 22, 2021Observed: 11.03 ft at 8:30AM Sep 22, 2021Observed: 11.03 ft at 8:45AM Sep 22, 2021Observed: 11.03 ft at 9:00AM Sep 22, 2021Observed: 11.01 ft at 9:15AM Sep 22, 2021Observed: 11.03 ft at 9:30AM Sep 22, 2021Observed: 11.03 ft at 9:45AM Sep 22, 2021Observed: 11.02 ft at 10:00AM Sep 22, 2021Observed: 11.02 ft at 10:15AM Sep 22, 2021Observed: 11.03 ft at 10:30AM Sep 22, 2021Observed: 11.03 ft at 10:45AM Sep 22, 2021Observed: 11.03 ft at 11:00AM Sep 22, 2021Observed: 11.03 ft at 11:15AM Sep 22, 2021Observed: 11.03 ft at 11:30AM Sep 22, 2021Observed: 11.03 ft at 11:45AM Sep 22, 2021Observed: 11.03 ft at 12:00PM Sep 22, 2021Observed: 11.03 ft at 12:15PM Sep 22, 2021Observed: 11.03 ft at 12:30PM Sep 22, 2021Observed: 11.04 ft at 12:45PM Sep 22, 2021Observed: 11.04 ft at 1:00PM Sep 22, 2021Observed: 11.04 ft at 1:15PM Sep 22, 2021Observed: 11.04 ft at 1:30PM Sep 22, 2021Observed: 11.03 ft at 1:45PM Sep 22, 2021Observed: 11.04 ft at 2:00PM Sep 22, 2021Observed: 11.02 ft at 2:15PM Sep 22, 2021Observed: 11.04 ft at 2:30PM Sep 22, 2021Observed: 11.05 ft at 2:45PM Sep 22, 2021Observed: 11.04 ft at 3:00PM Sep 22, 2021Observed: 11.05 ft at 3:15PM Sep 22, 2021Observed: 11.05 ft at 3:30PM Sep 22, 2021Observed: 11.04 ft at 3:45PM Sep 22, 2021Observed: 11.05 ft at 4:00PM Sep 22, 2021Observed: 11.05 ft at 4:15PM Sep 22, 2021Observed: 11.05 ft at 4:30PM Sep 22, 2021Observed: 11.05 ft at 4:45PM Sep 22, 2021Observed: 11.05 ft at 5:00PM Sep 22, 2021Observed: 11.04 ft at 5:15PM Sep 22, 2021Observed: 11.05 ft at 5:30PM Sep 22, 2021Observed: 11.04 ft at 5:45PM Sep 22, 2021Observed: 11.04 ft at 6:00PM Sep 22, 2021Observed: 11.05 ft at 6:15PM Sep 22, 2021Observed: 11.06 ft at 6:30PM Sep 22, 2021Observed: 11.05 ft at 6:45PM Sep 22, 2021Observed: 11.05 ft at 7:00PM Sep 22, 2021Observed: 11.05 ft at 7:15PM Sep 22, 2021Observed: 11.05 ft at 7:30PM Sep 22, 2021Observed: 11.06 ft at 7:45PM Sep 22, 2021Observed: 11.06 ft at 8:00PM Sep 22, 2021Observed: 11.05 ft at 8:15PM Sep 22, 2021Observed: 11.04 ft at 8:30PM Sep 22, 2021Observed: 11.04 ft at 8:45PM Sep 22, 2021Observed: 11.04 ft at 9:00PM Sep 22, 2021Observed: 11.05 ft at 9:15PM Sep 22, 2021Observed: 11.04 ft at 9:30PM Sep 22, 2021Observed: 11.06 ft at 9:45PM Sep 22, 2021Observed: 11.05 ft at 10:00PM Sep 22, 2021Observed: 11.04 ft at 10:15PM Sep 22, 2021Observed: 11.05 ft at 10:30PM Sep 22, 2021Observed: 11.05 ft at 10:45PM Sep 22, 2021Observed: 11.04 ft at 11:00PM Sep 22, 2021Observed: 11.05 ft at 11:15PM Sep 22, 2021Observed: 11.04 ft at 11:30PM Sep 22, 2021Observed: 11.03 ft at 11:45PM Sep 22, 2021Observed: 11.05 ft at 12:00AM Sep 23, 2021Observed: 11.04 ft at 12:15AM Sep 23, 2021Observed: 11.05 ft at 12:30AM Sep 23, 2021Observed: 11.05 ft at 12:45AM Sep 23, 2021Observed: 11.03 ft at 1:00AM Sep 23, 2021Observed: 11.04 ft at 1:15AM Sep 23, 2021Observed: 11.04 ft at 1:30AM Sep 23, 2021Observed: 11.03 ft at 1:45AM Sep 23, 2021Observed: 11.02 ft at 2:00AM Sep 23, 2021Observed: 11.02 ft at 2:15AM Sep 23, 2021Observed: 11.03 ft at 2:30AM Sep 23, 2021Observed: 11.04 ft at 2:45AM Sep 23, 2021Observed: 11.03 ft at 3:00AM Sep 23, 2021Observed: 11.03 ft at 3:15AM Sep 23, 2021Observed: 11.04 ft at 3:30AM Sep 23, 2021Observed: 11.02 ft at 3:45AM Sep 23, 2021Observed: 11.05 ft at 4:00AM Sep 23, 2021Observed: 11.04 ft at 4:15AM Sep 23, 2021Observed: 11.04 ft at 4:30AM Sep 23, 2021Observed: 11.05 ft at 4:45AM Sep 23, 2021Observed: 11.07 ft at 5:00AM Sep 23, 2021Observed: 11.06 ft at 5:15AM Sep 23, 2021Observed: 11.06 ft at 5:30AM Sep 23, 2021Observed: 11.06 ft at 5:45AM Sep 23, 2021Observed: 11.08 ft at 6:00AM Sep 23, 2021Observed: 11.07 ft at 6:15AM Sep 23, 2021Observed: 11.06 ft at 6:30AM Sep 23, 2021Observed: 11.06 ft at 6:45AM Sep 23, 2021Observed: 11.07 ft at 7:00AM Sep 23, 2021Observed: 11.07 ft at 7:02AM Sep 23, 2021Observed: 11.07 ft at 7:15AM Sep 23, 2021Observed: 11.07 ft at 7:17AM Sep 23, 2021Observed: 11.07 ft at 7:30AM Sep 23, 2021Observed: 11.07 ft at 7:32AM Sep 23, 2021Observed: 11.07 ft at 7:45AM Sep 23, 2021Observed: 11.08 ft at 8:00AM Sep 23, 2021Observed: 11.09 ft at 8:15AM Sep 23, 2021Observed: 11.08 ft at 8:30AM Sep 23, 2021Observed: 11.09 ft at 8:45AM Sep 23, 2021Observed: 11.11 ft at 9:00AM Sep 23, 2021Observed: 11.09 ft at 9:15AM Sep 23, 2021Observed: 11.11 ft at 9:30AM Sep 23, 2021Observed: 11.1 ft at 9:45AM Sep 23, 2021Observed: 11.1 ft at 10:00AM Sep 23, 2021Observed: 11.11 ft at 10:15AM Sep 23, 2021Observed: 11.14 ft at 10:30AM Sep 23, 2021Observed: 11.13 ft at 10:45AM Sep 23, 2021Observed: 11.13 ft at 11:00AM Sep 23, 2021Observed: 11.14 ft at 11:15AM Sep 23, 2021Observed: 11.16 ft at 11:30AM Sep 23, 2021Observed: 11.17 ft at 11:45AM Sep 23, 2021Observed: 11.17 ft at 12:00PM Sep 23, 2021Observed: 11.17 ft at 12:15PM Sep 23, 2021Observed: 11.18 ft at 12:30PM Sep 23, 2021Observed: 11.19 ft at 12:45PM Sep 23, 2021Observed: 11.19 ft at 1:00PM Sep 23, 2021Observed: 11.2 ft at 1:15PM Sep 23, 2021Observed: 11.19 ft at 1:30PM Sep 23, 2021Observed: 11.2 ft at 1:45PM Sep 23, 2021Observed: 11.19 ft at 2:00PM Sep 23, 2021Observed: 11.21 ft at 2:15PM Sep 23, 2021Observed: 11.2 ft at 2:30PM Sep 23, 2021Observed: 11.22 ft at 2:45PM Sep 23, 2021Observed: 11.22 ft at 3:00PM Sep 23, 2021Observed: 11.22 ft at 3:01PM Sep 23, 2021Observed: 11.24 ft at 3:15PM Sep 23, 2021Observed: 11.24 ft at 3:16PM Sep 23, 2021Observed: 11.24 ft at 3:30PM Sep 23, 2021Observed: 11.24 ft at 3:31PM Sep 23, 2021Observed: 11.23 ft at 3:45PM Sep 23, 2021Observed: 11.23 ft at 4:00PM Sep 23, 2021Observed: 11.25 ft at 4:15PM Sep 23, 2021Observed: 11.27 ft at 4:30PM Sep 23, 2021Observed: 11.26 ft at 4:45PM Sep 23, 2021Observed: 11.28 ft at 5:00PM Sep 23, 2021Observed: 11.26 ft at 5:15PM Sep 23, 2021Observed: 11.28 ft at 5:30PM Sep 23, 2021Observed: 11.27 ft at 5:45PM Sep 23, 2021Observed: 11.28 ft at 6:00PM Sep 23, 2021Observed: 11.3 ft at 6:15PM Sep 23, 2021Observed: 11.29 ft at 6:30PM Sep 23, 2021Observed: 11.29 ft at 6:45PM Sep 23, 2021Observed: 11.32 ft at 7:00PM Sep 23, 2021Observed: 11.33 ft at 7:15PM Sep 23, 2021Observed: 11.3 ft at 7:30PM Sep 23, 2021Observed: 11.31 ft at 7:45PM Sep 23, 2021Observed: 11.34 ft at 8:00PM Sep 23, 2021Observed: 11.34 ft at 8:15PM Sep 23, 2021Observed: 11.34 ft at 8:30PM Sep 23, 2021Observed: 11.35 ft at 8:45PM Sep 23, 2021Observed: 11.35 ft at 9:00PM Sep 23, 2021Observed: 11.38 ft at 9:15PM Sep 23, 2021Observed: 11.37 ft at 9:30PM Sep 23, 2021Observed: 11.37 ft at 9:45PM Sep 23, 2021Observed: 11.38 ft at 10:00PM Sep 23, 2021Observed: 11.39 ft at 10:15PM Sep 23, 2021Observed: 11.39 ft at 10:30PM Sep 23, 2021Observed: 11.39 ft at 10:45PM Sep 23, 2021Observed: 11.4 ft at 11:00PM Sep 23, 2021Observed: 11.42 ft at 11:15PM Sep 23, 2021Observed: 11.42 ft at 11:16PM Sep 23, 2021Observed: 11.41 ft at 11:30PM Sep 23, 2021Observed: 11.41 ft at 11:31PM Sep 23, 2021Observed: 11.42 ft at 11:45PM Sep 23, 2021Observed: 11.42 ft at 11:46PM Sep 23, 2021Observed: 11.41 ft at 12:00AM Sep 24, 2021Observed: 11.4 ft at 12:15AM Sep 24, 2021Observed: 11.42 ft at 12:30AM Sep 24, 2021Observed: 11.41 ft at 12:45AM Sep 24, 2021Observed: 11.41 ft at 1:00AM Sep 24, 2021Observed: 11.42 ft at 1:15AM Sep 24, 2021Observed: 11.44 ft at 1:30AM Sep 24, 2021Observed: 11.44 ft at 1:45AM Sep 24, 2021Observed: 11.42 ft at 2:00AM Sep 24, 2021Observed: 11.44 ft at 2:15AM Sep 24, 2021Observed: 11.45 ft at 2:30AM Sep 24, 2021Observed: 11.46 ft at 2:45AM Sep 24, 2021Observed: 11.44 ft at 3:00AM Sep 24, 2021Observed: 11.45 ft at 3:15AM Sep 24, 2021Observed: 11.44 ft at 3:30AM Sep 24, 2021Observed: 11.44 ft at 3:45AM Sep 24, 2021Observed: 11.46 ft at 4:00AM Sep 24, 2021Observed: 11.43 ft at 4:15AM Sep 24, 2021Observed: 11.45 ft at 4:30AM Sep 24, 2021Observed: 11.45 ft at 4:45AM Sep 24, 2021Observed: 11.47 ft at 5:00AM Sep 24, 2021Observed: 11.46 ft at 5:15AM Sep 24, 2021Observed: 11.47 ft at 5:30AM Sep 24, 2021Observed: 11.48 ft at 5:45AM Sep 24, 2021Observed: 11.48 ft at 6:00AM Sep 24, 2021Observed: 11.48 ft at 6:15AM Sep 24, 2021Observed: 11.48 ft at 6:30AM Sep 24, 2021Observed: 11.49 ft at 6:45AM Sep 24, 2021Observed: 11.48 ft at 7:00AM Sep 24, 2021Observed: 11.48 ft at 7:15AM Sep 24, 2021Observed: 11.48 ft at 7:17AM Sep 24, 2021Observed: 11.48 ft at 7:30AM Sep 24, 2021Observed: 11.48 ft at 7:32AM Sep 24, 2021Observed: 11.49 ft at 7:45AM Sep 24, 2021Observed: 11.49 ft at 7:47AM Sep 24, 2021Observed: 11.47 ft at 8:00AM Sep 24, 2021Observed: 11.47 ft at 8:15AM Sep 24, 2021Observed: 11.49 ft at 8:30AM Sep 24, 2021Observed: 11.48 ft at 8:45AM Sep 24, 2021Observed: 11.48 ft at 9:00AM Sep 24, 2021Observed: 11.5 ft at 9:15AM Sep 24, 2021Observed: 11.48 ft at 9:30AM Sep 24, 2021Observed: 11.49 ft at 9:45AM Sep 24, 2021Observed: 11.49 ft at 10:00AM Sep 24, 2021Observed: 11.5 ft at 10:15AM Sep 24, 2021Observed: 11.51 ft at 10:30AM Sep 24, 2021Observed: 11.5 ft at 10:45AM Sep 24, 2021Observed: 11.51 ft at 11:00AM Sep 24, 2021Observed: 11.5 ft at 11:15AM Sep 24, 2021Observed: 11.52 ft at 11:30AM Sep 24, 2021Observed: 11.53 ft at 11:45AM Sep 24, 2021Observed: 11.52 ft at 12:00PM Sep 24, 2021Observed: 11.53 ft at 12:15PM Sep 24, 2021Observed: 11.52 ft at 12:30PM Sep 24, 2021Observed: 11.5 ft at 12:45PM Sep 24, 2021Observed: 11.51 ft at 1:00PM Sep 24, 2021Observed: 11.52 ft at 1:15PM Sep 24, 2021Observed: 11.51 ft at 1:30PM Sep 24, 2021Observed: 11.5 ft at 1:45PM Sep 24, 2021Observed: 11.51 ft at 2:00PM Sep 24, 2021Observed: 11.51 ft at 2:15PM Sep 24, 2021Observed: 11.5 ft at 2:30PM Sep 24, 2021Observed: 11.49 ft at 2:45PM Sep 24, 2021Observed: 11.51 ft at 3:00PM Sep 24, 2021Observed: 11.51 ft at 3:15PM Sep 24, 2021Observed: 11.51 ft at 3:16PM Sep 24, 2021Observed: 11.5 ft at 3:30PM Sep 24, 2021Observed: 11.5 ft at 3:31PM Sep 24, 2021Observed: 11.52 ft at 3:45PM Sep 24, 2021Observed: 11.52 ft at 3:46PM Sep 24, 2021Observed: 11.5 ft at 4:00PM Sep 24, 2021Observed: 11.54 ft at 4:15PM Sep 24, 2021Observed: 11.5 ft at 4:30PM Sep 24, 2021Observed: 11.52 ft at 4:45PM Sep 24, 2021Observed: 11.53 ft at 5:00PM Sep 24, 2021Observed: 11.53 ft at 5:15PM Sep 24, 2021Observed: 11.51 ft at 5:30PM Sep 24, 2021Observed: 11.52 ft at 5:45PM Sep 24, 2021Observed: 11.53 ft at 6:00PM Sep 24, 2021Observed: 11.52 ft at 6:15PM Sep 24, 2021Observed: 11.55 ft at 6:30PM Sep 24, 2021Observed: 11.54 ft at 6:45PM Sep 24, 2021Observed: 11.54 ft at 7:00PM Sep 24, 2021Observed: 11.55 ft at 7:15PM Sep 24, 2021Observed: 11.56 ft at 7:30PM Sep 24, 2021Observed: 11.56 ft at 7:45PM Sep 24, 2021Observed: 11.56 ft at 8:00PM Sep 24, 2021Observed: 11.55 ft at 8:15PM Sep 24, 2021Observed: 11.57 ft at 8:30PM Sep 24, 2021Observed: 11.56 ft at 8:45PM Sep 24, 2021Observed: 11.57 ft at 9:00PM Sep 24, 2021Observed: 11.56 ft at 9:15PM Sep 24, 2021Observed: 11.58 ft at 9:30PM Sep 24, 2021Observed: 11.57 ft at 9:45PM Sep 24, 2021Observed: 11.55 ft at 10:00PM Sep 24, 2021Observed: 11.56 ft at 10:15PM Sep 24, 2021Observed: 11.57 ft at 10:30PM Sep 24, 2021Observed: 11.57 ft at 10:45PM Sep 24, 2021Observed: 11.57 ft at 11:00PM Sep 24, 2021Observed: 11.56 ft at 11:15PM Sep 24, 2021Observed: 11.56 ft at 11:17PM Sep 24, 2021Observed: 11.57 ft at 11:30PM Sep 24, 2021Observed: 11.57 ft at 11:32PM Sep 24, 2021Observed: 11.56 ft at 11:45PM Sep 24, 2021Observed: 11.56 ft at 11:47PM Sep 24, 2021Observed: 11.57 ft at 12:00AM Sep 25, 2021Observed: 11.56 ft at 12:15AM Sep 25, 2021Observed: 11.57 ft at 12:30AM Sep 25, 2021Observed: 11.55 ft at 12:45AM Sep 25, 2021Observed: 11.58 ft at 1:00AM Sep 25, 2021Observed: 11.58 ft at 1:15AM Sep 25, 2021Observed: 11.59 ft at 1:30AM Sep 25, 2021Observed: 11.59 ft at 1:45AM Sep 25, 2021Observed: 11.61 ft at 2:00AM Sep 25, 2021Observed: 11.58 ft at 2:15AM Sep 25, 2021Observed: 11.59 ft at 2:30AM Sep 25, 2021Observed: 11.6 ft at 2:45AM Sep 25, 2021Observed: 11.59 ft at 3:00AM Sep 25, 2021Observed: 11.6 ft at 3:15AM Sep 25, 2021Observed: 11.6 ft at 3:30AM Sep 25, 2021Observed: 11.6 ft at 3:45AM Sep 25, 2021Observed: 11.62 ft at 4:00AM Sep 25, 2021Observed: 11.63 ft at 4:15AM Sep 25, 2021Observed: 11.62 ft at 4:30AM Sep 25, 2021Observed: 11.62 ft at 4:45AM Sep 25, 2021Observed: 11.64 ft at 5:00AM Sep 25, 2021Observed: 11.63 ft at 5:15AM Sep 25, 2021Observed: 11.64 ft at 5:30AM Sep 25, 2021Observed: 11.64 ft at 5:45AM Sep 25, 2021Observed: 11.66 ft at 6:00AM Sep 25, 2021Observed: 11.65 ft at 6:15AM Sep 25, 2021Observed: 11.67 ft at 6:30AM Sep 25, 2021Observed: 11.66 ft at 6:45AM Sep 25, 2021Observed: 11.67 ft at 7:00AM Sep 25, 2021Observed: 11.66 ft at 7:15AM Sep 25, 2021Observed: 11.66 ft at 7:17AM Sep 25, 2021Observed: 11.64 ft at 7:30AM Sep 25, 2021Observed: 11.64 ft at 7:32AM Sep 25, 2021Observed: 11.68 ft at 7:45AM Sep 25, 2021Observed: 11.68 ft at 7:47AM Sep 25, 2021Observed: 11.67 ft at 8:00AM Sep 25, 2021Observed: 11.66 ft at 8:15AM Sep 25, 2021Observed: 11.68 ft at 8:30AM Sep 25, 2021Observed: 11.66 ft at 8:45AM Sep 25, 2021Observed: 11.69 ft at 9:00AM Sep 25, 2021Observed: 11.69 ft at 9:15AM Sep 25, 2021Observed: 11.69 ft at 9:30AM Sep 25, 2021Observed: 11.69 ft at 9:45AM Sep 25, 2021Observed: 11.7 ft at 10:00AM Sep 25, 2021Observed: 11.7 ft at 10:15AM Sep 25, 2021Observed: 11.7 ft at 10:30AM Sep 25, 2021Observed: 11.7 ft at 10:45AM Sep 25, 2021Observed: 11.71 ft at 11:00AM Sep 25, 2021Observed: 11.7 ft at 11:15AM Sep 25, 2021Observed: 11.71 ft at 11:30AM Sep 25, 2021Observed: 11.7 ft at 11:45AM Sep 25, 2021Observed: 11.72 ft at 12:00PM Sep 25, 2021Observed: 11.73 ft at 12:15PM Sep 25, 2021Observed: 11.71 ft at 12:30PM Sep 25, 2021Observed: 11.75 ft at 12:45PM Sep 25, 2021Observed: 11.74 ft at 1:00PM Sep 25, 2021Observed: 11.72 ft at 1:15PM Sep 25, 2021Observed: 11.73 ft at 1:30PM Sep 25, 2021Observed: 11.74 ft at 1:45PM Sep 25, 2021Observed: 11.72 ft at 2:00PM Sep 25, 2021Observed: 11.75 ft at 2:15PM Sep 25, 2021Observed: 11.73 ft at 2:30PM Sep 25, 2021Observed: 11.74 ft at 2:45PM Sep 25, 2021Observed: 11.76 ft at 3:00PM Sep 25, 2021Observed: 11.75 ft at 3:15PM Sep 25, 2021Observed: 11.75 ft at 3:16PM Sep 25, 2021Observed: 11.74 ft at 3:30PM Sep 25, 2021Observed: 11.74 ft at 3:31PM Sep 25, 2021Observed: 11.74 ft at 3:45PM Sep 25, 2021Observed: 11.74 ft at 3:46PM Sep 25, 2021Observed: 11.76 ft at 4:00PM Sep 25, 2021Observed: 11.72 ft at 4:15PM Sep 25, 2021Observed: 11.74 ft at 4:30PM Sep 25, 2021Observed: 11.76 ft at 4:45PM Sep 25, 2021Observed: 11.75 ft at 5:00PM Sep 25, 2021Highest Observation: 11.78 ft at 5:15PM Sep 25, 2021Highest Observation: 11.78 ft at 5:30PM Sep 25, 2021Observed: 11.77 ft at 5:45PM Sep 25, 2021Observed: 11.76 ft at 6:00PM Sep 25, 2021Highest Observation: 11.78 ft at 6:15PM Sep 25, 2021Observed: 11.77 ft at 6:30PM Sep 25, 2021Observed: 11.76 ft at 6:45PM Sep 25, 2021Observed: 11.77 ft at 7:00PM Sep 25, 2021Observed: 11.76 ft at 7:15PM Sep 25, 2021Observed: 11.75 ft at 7:30PM Sep 25, 2021Observed: 11.76 ft at 7:45PM Sep 25, 2021Observed: 11.76 ft at 8:00PM Sep 25, 2021Observed: 11.77 ft at 8:15PM Sep 25, 2021Observed: 11.77 ft at 8:30PM Sep 25, 2021Observed: 11.77 ft at 8:45PM Sep 25, 2021Observed: 11.76 ft at 9:00PM Sep 25, 2021Observed: 11.76 ft at 9:15PM Sep 25, 2021Observed: 11.75 ft at 9:30PM Sep 25, 2021Observed: 11.76 ft at 9:45PM Sep 25, 2021Observed: 11.76 ft at 10:00PM Sep 25, 2021Observed: 11.75 ft at 10:15PM Sep 25, 2021Observed: 11.74 ft at 10:30PM Sep 25, 2021Observed: 11.73 ft at 10:45PM Sep 25, 2021Observed: 11.75 ft at 11:00PM Sep 25, 2021Observed: 11.73 ft at 11:15PM Sep 25, 2021Observed: 11.73 ft at 11:16PM Sep 25, 2021Observed: 11.73 ft at 11:30PM Sep 25, 2021Observed: 11.73 ft at 11:31PM Sep 25, 2021Observed: 11.73 ft at 11:45PM Sep 25, 2021Observed: 11.73 ft at 11:46PM Sep 25, 2021Observed: 11.73 ft at 12:00AM Sep 26, 2021Observed: 11.73 ft at 12:15AM Sep 26, 2021Observed: 11.72 ft at 12:30AM Sep 26, 2021Observed: 11.72 ft at 12:45AM Sep 26, 2021Observed: 11.71 ft at 1:00AM Sep 26, 2021Observed: 11.71 ft at 1:15AM Sep 26, 2021Observed: 11.72 ft at 1:30AM Sep 26, 2021Observed: 11.7 ft at 1:45AM Sep 26, 2021Observed: 11.71 ft at 2:00AM Sep 26, 2021Observed: 11.71 ft at 2:15AM Sep 26, 2021Observed: 11.7 ft at 2:30AM Sep 26, 2021Observed: 11.7 ft at 2:45AM Sep 26, 2021Observed: 11.69 ft at 3:00AM Sep 26, 2021Observed: 11.69 ft at 3:15AM Sep 26, 2021Observed: 11.7 ft at 3:30AM Sep 26, 2021Observed: 11.69 ft at 3:45AM Sep 26, 2021Observed: 11.69 ft at 4:00AM Sep 26, 2021Observed: 11.68 ft at 4:15AM Sep 26, 2021Observed: 11.67 ft at 4:30AM Sep 26, 2021Observed: 11.68 ft at 4:45AM Sep 26, 2021Observed: 11.67 ft at 5:00AM Sep 26, 2021Observed: 11.68 ft at 5:15AM Sep 26, 2021Observed: 11.68 ft at 5:30AM Sep 26, 2021Observed: 11.67 ft at 5:45AM Sep 26, 2021Observed: 11.67 ft at 6:00AM Sep 26, 2021Observed: 11.68 ft at 6:15AM Sep 26, 2021Observed: 11.67 ft at 6:30AM Sep 26, 2021Observed: 11.67 ft at 6:45AM Sep 26, 2021Observed: 11.67 ft at 7:00AM Sep 26, 2021Observed: 11.67 ft at 7:15AM Sep 26, 2021Observed: 11.67 ft at 7:16AM Sep 26, 2021Observed: 11.66 ft at 7:30AM Sep 26, 2021Observed: 11.66 ft at 7:31AM Sep 26, 2021Observed: 11.67 ft at 7:45AM Sep 26, 2021Observed: 11.67 ft at 7:46AM Sep 26, 2021Observed: 11.68 ft at 8:00AM Sep 26, 2021Observed: 11.67 ft at 8:15AM Sep 26, 2021Observed: 11.67 ft at 8:30AM Sep 26, 2021Observed: 11.67 ft at 8:45AM Sep 26, 2021Observed: 11.68 ft at 9:00AM Sep 26, 2021Observed: 11.66 ft at 9:15AM Sep 26, 2021Observed: 11.67 ft at 9:30AM Sep 26, 2021Observed: 11.68 ft at 9:45AM Sep 26, 2021Observed: 11.66 ft at 10:00AM Sep 26, 2021Observed: 11.67 ft at 10:15AM Sep 26, 2021Observed: 11.66 ft at 10:30AM Sep 26, 2021Observed: 11.66 ft at 10:45AM Sep 26, 2021Observed: 11.66 ft at 11:00AM Sep 26, 2021Observed: 11.66 ft at 11:15AM Sep 26, 2021Observed: 11.66 ft at 11:30AM Sep 26, 2021Observed: 11.66 ft at 11:45AM Sep 26, 2021Observed: 11.67 ft at 12:00PM Sep 26, 2021Observed: 11.66 ft at 12:15PM Sep 26, 2021Observed: 11.67 ft at 12:30PM Sep 26, 2021Observed: 11.66 ft at 12:45PM Sep 26, 2021Observed: 11.67 ft at 1:00PM Sep 26, 2021Observed: 11.66 ft at 1:15PM Sep 26, 2021Observed: 11.66 ft at 1:30PM Sep 26, 2021Observed: 11.67 ft at 1:45PM Sep 26, 2021Observed: 11.67 ft at 2:00PM Sep 26, 2021Observed: 11.66 ft at 2:15PM Sep 26, 2021Observed: 11.67 ft at 2:30PM Sep 26, 2021Observed: 11.67 ft at 2:45PM Sep 26, 2021Observed: 11.67 ft at 3:00PM Sep 26, 2021Observed: 11.67 ft at 3:15PM Sep 26, 2021Observed: 11.67 ft at 3:16PM Sep 26, 2021Observed: 11.66 ft at 3:30PM Sep 26, 2021Observed: 11.66 ft at 3:31PM Sep 26, 2021Observed: 11.66 ft at 3:45PM Sep 26, 2021Observed: 11.66 ft at 3:46PM Sep 26, 2021Observed: 11.68 ft at 4:00PM Sep 26, 2021Observed: 11.67 ft at 4:15PM Sep 26, 2021Observed: 11.68 ft at 4:30PM Sep 26, 2021Observed: 11.66 ft at 4:45PM Sep 26, 2021Observed: 11.66 ft at 5:00PM Sep 26, 2021Observed: 11.66 ft at 5:15PM Sep 26, 2021Observed: 11.67 ft at 5:30PM Sep 26, 2021Observed: 11.66 ft at 5:45PM Sep 26, 2021Observed: 11.66 ft at 6:00PM Sep 26, 2021Observed: 11.67 ft at 6:15PM Sep 26, 2021Observed: 11.68 ft at 6:30PM Sep 26, 2021Observed: 11.67 ft at 6:45PM Sep 26, 2021Observed: 11.67 ft at 7:00PM Sep 26, 2021Observed: 11.67 ft at 7:15PM Sep 26, 2021Observed: 11.67 ft at 7:30PM Sep 26, 2021Observed: 11.66 ft at 7:45PM Sep 26, 2021Observed: 11.66 ft at 8:00PM Sep 26, 2021Observed: 11.66 ft at 8:15PM Sep 26, 2021Observed: 11.66 ft at 8:30PM Sep 26, 2021Observed: 11.65 ft at 8:45PM Sep 26, 2021Observed: 11.66 ft at 9:00PM Sep 26, 2021Observed: 11.66 ft at 9:15PM Sep 26, 2021Observed: 11.66 ft at 9:30PM Sep 26, 2021Observed: 11.65 ft at 9:45PM Sep 26, 2021Observed: 11.65 ft at 10:00PM Sep 26, 2021Observed: 11.65 ft at 10:15PM Sep 26, 2021Observed: 11.65 ft at 10:30PM Sep 26, 2021Observed: 11.66 ft at 10:45PM Sep 26, 2021Observed: 11.64 ft at 11:00PM Sep 26, 2021Observed: 11.65 ft at 11:15PM Sep 26, 2021Observed: 11.65 ft at 11:16PM Sep 26, 2021Observed: 11.64 ft at 11:30PM Sep 26, 2021Observed: 11.64 ft at 11:31PM Sep 26, 2021Observed: 11.63 ft at 11:45PM Sep 26, 2021Observed: 11.63 ft at 11:46PM Sep 26, 2021Observed: 11.65 ft at 12:00AM Sep 27, 2021Observed: 11.62 ft at 12:15AM Sep 27, 2021Observed: 11.62 ft at 12:30AM Sep 27, 2021Observed: 11.62 ft at 12:45AM Sep 27, 2021Observed: 11.63 ft at 1:00AM Sep 27, 2021Observed: 11.62 ft at 1:15AM Sep 27, 2021Observed: 11.61 ft at 1:30AM Sep 27, 2021Observed: 11.61 ft at 1:45AM Sep 27, 2021Observed: 11.62 ft at 2:00AM Sep 27, 2021Observed: 11.61 ft at 2:15AM Sep 27, 2021Observed: 11.62 ft at 2:30AM Sep 27, 2021Observed: 11.6 ft at 2:45AM Sep 27, 2021Observed: 11.6 ft at 3:00AM Sep 27, 2021Observed: 11.61 ft at 3:15AM Sep 27, 2021Observed: 11.6 ft at 3:30AM Sep 27, 2021Observed: 11.61 ft at 3:45AM Sep 27, 2021Observed: 11.61 ft at 4:00AM Sep 27, 2021Observed: 11.59 ft at 4:15AM Sep 27, 2021Observed: 11.6 ft at 4:30AM Sep 27, 2021Observed: 11.59 ft at 4:45AM Sep 27, 2021Observed: 11.59 ft at 5:00AM Sep 27, 2021Observed: 11.59 ft at 5:15AM Sep 27, 2021Observed: 11.58 ft at 5:30AM Sep 27, 2021Observed: 11.58 ft at 5:45AM Sep 27, 2021Observed: 11.59 ft at 6:00AM Sep 27, 2021Observed: 11.58 ft at 6:15AM Sep 27, 2021Observed: 11.58 ft at 6:30AM Sep 27, 2021Observed: 11.57 ft at 6:45AM Sep 27, 2021Observed: 11.58 ft at 7:00AM Sep 27, 2021Observed: 11.59 ft at 7:15AM Sep 27, 2021Observed: 11.59 ft at 7:30AM Sep 27, 2021Observed: 11.59 ft at 7:31AM Sep 27, 2021Observed: 11.58 ft at 7:45AM Sep 27, 2021Observed: 11.58 ft at 7:46AM Sep 27, 2021Observed: 11.58 ft at 8:00AM Sep 27, 2021Observed: 11.58 ft at 8:01AM Sep 27, 2021Observed: 11.58 ft at 8:15AM Sep 27, 2021Observed: 11.59 ft at 8:30AM Sep 27, 2021Observed: 11.57 ft at 8:45AM Sep 27, 2021Observed: 11.56 ft at 9:00AM Sep 27, 2021Observed: 11.56 ft at 9:15AM Sep 27, 2021Observed: 11.59 ft at 9:30AM Sep 27, 2021Observed: 11.58 ft at 9:45AM Sep 27, 2021Observed: 11.58 ft at 10:00AM Sep 27, 2021Observed: 11.59 ft at 10:15AM Sep 27, 2021Observed: 11.59 ft at 10:30AM Sep 27, 2021Observed: 11.59 ft at 10:45AM Sep 27, 2021Observed: 11.6 ft at 11:00AM Sep 27, 2021Observed: 11.59 ft at 11:15AM Sep 27, 2021Observed: 11.61 ft at 11:30AM Sep 27, 2021Observed: 11.59 ft at 11:45AM Sep 27, 2021Observed: 11.6 ft at 12:00PM Sep 27, 2021Observed: 11.61 ft at 12:15PM Sep 27, 2021Observed: 11.61 ft at 12:30PM Sep 27, 2021Observed: 11.61 ft at 12:45PM Sep 27, 2021Observed: 11.62 ft at 1:00PM Sep 27, 2021Observed: 11.61 ft at 1:15PM Sep 27, 2021Observed: 11.61 ft at 1:30PM Sep 27, 2021Observed: 11.61 ft at 1:45PM Sep 27, 2021Observed: 11.62 ft at 2:00PM Sep 27, 2021Observed: 11.61 ft at 2:15PM Sep 27, 2021Observed: 11.61 ft at 2:30PM Sep 27, 2021Observed: 11.62 ft at 2:45PM Sep 27, 2021Observed: 11.63 ft at 3:00PM Sep 27, 2021Observed: 11.63 ft at 3:15PM Sep 27, 2021Observed: 11.63 ft at 3:30PM Sep 27, 2021Observed: 11.63 ft at 3:32PM Sep 27, 2021Observed: 11.62 ft at 3:45PM Sep 27, 2021Observed: 11.62 ft at 3:47PM Sep 27, 2021Observed: 11.64 ft at 4:00PM Sep 27, 2021Observed: 11.64 ft at 4:02PM Sep 27, 2021Observed: 11.62 ft at 4:15PM Sep 27, 2021Observed: 11.63 ft at 4:30PM Sep 27, 2021Observed: 11.63 ft at 4:45PM Sep 27, 2021Observed: 11.65 ft at 5:00PM Sep 27, 2021Observed: 11.64 ft at 5:15PM Sep 27, 2021Observed: 11.64 ft at 5:30PM Sep 27, 2021Observed: 11.63 ft at 5:45PM Sep 27, 2021Observed: 11.64 ft at 6:00PM Sep 27, 2021Observed: 11.65 ft at 6:15PM Sep 27, 2021Observed: 11.64 ft at 6:30PM Sep 27, 2021Observed: 11.64 ft at 6:45PM Sep 27, 2021Observed: 11.63 ft at 7:00PM Sep 27, 2021Observed: 11.63 ft at 7:15PM Sep 27, 2021Observed: 11.64 ft at 7:30PM Sep 27, 2021Observed: 11.64 ft at 7:45PM Sep 27, 2021Observed: 11.64 ft at 8:00PM Sep 27, 2021Observed: 11.64 ft at 8:15PM Sep 27, 2021Observed: 11.65 ft at 8:30PM Sep 27, 2021Observed: 11.65 ft at 8:45PM Sep 27, 2021Observed: 11.64 ft at 9:00PM Sep 27, 2021Observed: 11.64 ft at 9:15PM Sep 27, 2021Observed: 11.65 ft at 9:30PM Sep 27, 2021Observed: 11.64 ft at 9:45PM Sep 27, 2021Observed: 11.64 ft at 10:00PM Sep 27, 2021Observed: 11.64 ft at 10:15PM Sep 27, 2021Observed: 11.62 ft at 10:30PM Sep 27, 2021Observed: 11.63 ft at 10:45PM Sep 27, 2021Observed: 11.62 ft at 11:00PM Sep 27, 2021Observed: 11.63 ft at 11:15PM Sep 27, 2021Observed: 11.62 ft at 11:30PM Sep 27, 2021Observed: 11.62 ft at 11:32PM Sep 27, 2021Observed: 11.62 ft at 11:45PM Sep 27, 2021Observed: 11.62 ft at 11:47PM Sep 27, 2021Observed: 11.61 ft at 12:00AM Sep 28, 2021Observed: 11.61 ft at 12:02AM Sep 28, 2021Observed: 11.62 ft at 12:15AM Sep 28, 2021Observed: 11.61 ft at 12:30AM Sep 28, 2021Observed: 11.61 ft at 12:45AM Sep 28, 2021Observed: 11.61 ft at 1:00AM Sep 28, 2021Observed: 11.59 ft at 1:15AM Sep 28, 2021Observed: 11.61 ft at 1:30AM Sep 28, 2021USGS--Water Resources of the United StatesSXCI4(plotting HGIRG) Graph Created (2:04AM Sep 28, 2021)ObservedLatest observed value: 11.61 ft at 1:30 AM CDT 28-Sep-2021. Flood Stage is 32 ft
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About this graph
Tabular Data (UTC)
Tabular Data (CDT)
XML Data
RSS Files
Datum: NAVD88
Metadata
NOTE: River forecasts for this location take into account past precipitation and the precipitation amounts expected approximately 24 hours into the future from the forecast issuance time.

NOTE: Forecasts for the Big Sioux River at Sioux City are issued as needed during times of high water, but are not routinely available.

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Upstream Gauge - near Jefferson Upstream Gauge
Flood Categories (in feet)
Major Flood Stage: 41
Moderate Flood Stage: 38
Flood Stage: 32
Action Stage: 29
Low Stage (in feet): -9999

Historic Crests
(1) 37.70 ft on 06/20/2014
(2) 37.46 ft on 03/17/2019
(3) 30.50 ft on 06/25/2018 (P)
(4) 21.89 ft on 04/02/2020
(5) 19.04 ft on 05/04/2016
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 21.89 ft on 04/02/2020
(2) 37.46 ft on 03/17/2019
(3) 30.50 ft on 06/25/2018 (P)
(4) 17.73 ft on 05/26/2017
(5) 19.04 ft on 05/04/2016
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
Currently none available.

For more information on your flood risk go to www.floodsmart.gov.
Zoom Level:14
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 Disclaimer
Latitude/Longitude Disclaimer: The gauge location shown in the above map is the approximate location based on the latitude/longitude coordinates provided to the NWS by the gauge owner.
Flood Impacts & Photos Collapse
If you notice any errors in the below information, please contact our Webmaster
43.5 the lower levees in the Iowa Riverside community are in danger of being overtopped if not sandbagged.
41 sandbagging is needed to protect Interstate 29 from flooding.
38 most of the storm drains are submerged.
32 agricultural land north of the leveed area begins to flood.
Photos
(1) Upstream View
(2) Downstream View
About This Location Collapse

Latitude: 42.524444° N, Longitude: 96.480000° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame		 Gauge Height Flood Stage Uses
NWS stage 0 ft 32 ft Interpreting hydrographs and NWS watch, warnings, and forecasts, and inundation maps
Vertical Datum Elevation
(gauge height = 0)		 Elevation
(gauge height = flood stage)		 Elevation information source
NAVD88 1060.00 1092.00 Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps
NGVD 29 Not Available Not Available Older USGS topographic maps, NGVD29 benchmarks
MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks
Other Not Available Not Available  

Current/Historical Observations:
Additional Information Collapse
Flood stage and impact levels have recently changed due to a change in the zero datum for this gauge. How low could the river get?
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Hydrologic Resources Additional Resources
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The National Weather Service prepares its forecasts and other services in collaboration with agencies like the US Geological Survey, US Bureau of Reclamation, US Army Corps of Engineers, Natural Resource Conservation Service, National Park Service, ALERT Users Group, Bureau of Indian Affairs, and many state and local emergency managers across the country. For details, please click here.
NWS Information
National Weather Service
Sioux Falls Weather Forecast Office
26 Weather Lane
Sioux Falls, SD 57104-0198
(605) 330-4247
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