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Hydrograph River at a Glance Download
Big Sioux River at Sioux City Stage (ft)Flow (cfs)Observed: 12.36 ft at 10:15PM Apr 14, 2021Observed: 12.37 ft at 10:30PM Apr 14, 2021Observed: 12.37 ft at 10:45PM Apr 14, 2021Observed: 12.36 ft at 11:00PM Apr 14, 2021Observed: 12.36 ft at 11:15PM Apr 14, 2021Observed: 12.36 ft at 11:30PM Apr 14, 2021Observed: 12.38 ft at 11:45PM Apr 14, 2021Observed: 12.38 ft at 12:00AM Apr 15, 2021Observed: 12.37 ft at 12:15AM Apr 15, 2021Observed: 12.35 ft at 12:30AM Apr 15, 2021Observed: 12.37 ft at 12:45AM Apr 15, 2021Observed: 12.39 ft at 1:00AM Apr 15, 2021Observed: 12.38 ft at 1:15AM Apr 15, 2021Observed: 12.37 ft at 1:30AM Apr 15, 2021Observed: 12.36 ft at 1:45AM Apr 15, 2021Observed: 12.36 ft at 2:00AM Apr 15, 2021Observed: 12.35 ft at 2:15AM Apr 15, 2021Observed: 12.38 ft at 2:30AM Apr 15, 2021Observed: 12.36 ft at 2:45AM Apr 15, 2021Observed: 12.36 ft at 3:00AM Apr 15, 2021Observed: 12.36 ft at 3:01AM Apr 15, 2021Observed: 12.35 ft at 3:15AM Apr 15, 2021Observed: 12.35 ft at 3:16AM Apr 15, 2021Observed: 12.33 ft at 3:30AM Apr 15, 2021Observed: 12.33 ft at 3:31AM Apr 15, 2021Observed: 12.34 ft at 3:45AM Apr 15, 2021Observed: 12.33 ft at 4:00AM Apr 15, 2021Observed: 12.36 ft at 4:15AM Apr 15, 2021Observed: 12.35 ft at 4:30AM Apr 15, 2021Observed: 12.35 ft at 4:45AM Apr 15, 2021Observed: 12.35 ft at 5:00AM Apr 15, 2021Observed: 12.32 ft at 5:15AM Apr 15, 2021Observed: 12.35 ft at 5:30AM Apr 15, 2021Observed: 12.37 ft at 5:45AM Apr 15, 2021Observed: 12.35 ft at 6:00AM Apr 15, 2021Observed: 12.35 ft at 6:15AM Apr 15, 2021Observed: 12.36 ft at 6:30AM Apr 15, 2021Observed: 12.35 ft at 6:45AM Apr 15, 2021Observed: 12.35 ft at 7:00AM Apr 15, 2021Observed: 12.37 ft at 7:15AM Apr 15, 2021Observed: 12.37 ft at 7:30AM Apr 15, 2021Observed: 12.36 ft at 7:45AM Apr 15, 2021Observed: 12.39 ft at 8:00AM Apr 15, 2021Observed: 12.4 ft at 8:15AM Apr 15, 2021Observed: 12.36 ft at 8:30AM Apr 15, 2021Observed: 12.38 ft at 8:45AM Apr 15, 2021Observed: 12.34 ft at 9:00AM Apr 15, 2021Observed: 12.36 ft at 9:15AM Apr 15, 2021Highest Observation: 12.41 ft at 9:30AM Apr 15, 2021Observed: 12.36 ft at 9:45AM Apr 15, 2021Observed: 12.38 ft at 10:00AM Apr 15, 2021Observed: 12.37 ft at 10:15AM Apr 15, 2021Observed: 12.33 ft at 10:30AM Apr 15, 2021Observed: 12.36 ft at 10:45AM Apr 15, 2021Observed: 12.35 ft at 11:00AM Apr 15, 2021Observed: 12.35 ft at 11:02AM Apr 15, 2021Observed: 12.36 ft at 11:15AM Apr 15, 2021Observed: 12.36 ft at 11:17AM Apr 15, 2021Observed: 12.34 ft at 11:30AM Apr 15, 2021Observed: 12.34 ft at 11:32AM Apr 15, 2021Observed: 12.36 ft at 11:45AM Apr 15, 2021Observed: 12.36 ft at 12:00PM Apr 15, 2021Highest Observation: 12.41 ft at 12:15PM Apr 15, 2021Observed: 12.38 ft at 12:30PM Apr 15, 2021Observed: 12.39 ft at 12:45PM Apr 15, 2021Observed: 12.38 ft at 1:00PM Apr 15, 2021Observed: 12.35 ft at 1:15PM Apr 15, 2021Observed: 12.4 ft at 1:30PM Apr 15, 2021Observed: 12.37 ft at 1:45PM Apr 15, 2021Observed: 12.36 ft at 2:00PM Apr 15, 2021Observed: 12.36 ft at 2:15PM Apr 15, 2021Observed: 12.36 ft at 2:30PM Apr 15, 2021Observed: 12.37 ft at 2:45PM Apr 15, 2021Observed: 12.35 ft at 3:00PM Apr 15, 2021Observed: 12.34 ft at 3:15PM Apr 15, 2021Observed: 12.38 ft at 3:30PM Apr 15, 2021Observed: 12.33 ft at 3:45PM Apr 15, 2021Observed: 12.35 ft at 4:00PM Apr 15, 2021Observed: 12.34 ft at 4:15PM Apr 15, 2021Observed: 12.36 ft at 4:30PM Apr 15, 2021Observed: 12.36 ft at 4:45PM Apr 15, 2021Observed: 12.37 ft at 5:00PM Apr 15, 2021Observed: 12.39 ft at 5:15PM Apr 15, 2021Observed: 12.37 ft at 5:30PM Apr 15, 2021Observed: 12.39 ft at 5:45PM Apr 15, 2021Observed: 12.34 ft at 6:00PM Apr 15, 2021Observed: 12.39 ft at 6:15PM Apr 15, 2021Observed: 12.39 ft at 6:30PM Apr 15, 2021Observed: 12.36 ft at 6:45PM Apr 15, 2021Observed: 12.36 ft at 7:00PM Apr 15, 2021Observed: 12.35 ft at 7:15PM Apr 15, 2021Observed: 12.35 ft at 7:16PM Apr 15, 2021Observed: 12.36 ft at 7:30PM Apr 15, 2021Observed: 12.36 ft at 7:31PM Apr 15, 2021Observed: 12.37 ft at 7:45PM Apr 15, 2021Observed: 12.37 ft at 7:46PM Apr 15, 2021Observed: 12.35 ft at 8:00PM Apr 15, 2021Observed: 12.35 ft at 8:15PM Apr 15, 2021Observed: 12.38 ft at 8:30PM Apr 15, 2021Observed: 12.38 ft at 8:45PM Apr 15, 2021Observed: 12.35 ft at 9:00PM Apr 15, 2021Observed: 12.37 ft at 9:15PM Apr 15, 2021Observed: 12.39 ft at 9:30PM Apr 15, 2021Observed: 12.36 ft at 9:45PM Apr 15, 2021Observed: 12.36 ft at 10:00PM Apr 15, 2021Observed: 12.37 ft at 10:15PM Apr 15, 2021Observed: 12.37 ft at 10:30PM Apr 15, 2021Observed: 12.36 ft at 10:45PM Apr 15, 2021Observed: 12.35 ft at 11:00PM Apr 15, 2021Observed: 12.37 ft at 11:15PM Apr 15, 2021Observed: 12.34 ft at 11:30PM Apr 15, 2021Observed: 12.35 ft at 11:45PM Apr 15, 2021Observed: 12.37 ft at 12:00AM Apr 16, 2021Observed: 12.38 ft at 12:15AM Apr 16, 2021Observed: 12.35 ft at 12:30AM Apr 16, 2021Observed: 12.37 ft at 12:45AM Apr 16, 2021Observed: 12.38 ft at 1:00AM Apr 16, 2021Observed: 12.36 ft at 1:15AM Apr 16, 2021Observed: 12.35 ft at 1:30AM Apr 16, 2021Observed: 12.37 ft at 1:45AM Apr 16, 2021Observed: 12.38 ft at 2:00AM Apr 16, 2021Observed: 12.37 ft at 2:15AM Apr 16, 2021Observed: 12.36 ft at 2:30AM Apr 16, 2021Observed: 12.38 ft at 2:45AM Apr 16, 2021Observed: 12.36 ft at 3:00AM Apr 16, 2021Observed: 12.39 ft at 3:15AM Apr 16, 2021Observed: 12.39 ft at 3:17AM Apr 16, 2021Observed: 12.37 ft at 3:30AM Apr 16, 2021Observed: 12.37 ft at 3:32AM Apr 16, 2021Observed: 12.39 ft at 3:45AM Apr 16, 2021Observed: 12.39 ft at 3:47AM Apr 16, 2021Observed: 12.36 ft at 4:00AM Apr 16, 2021Observed: 12.36 ft at 4:15AM Apr 16, 2021Observed: 12.37 ft at 4:30AM Apr 16, 2021Observed: 12.37 ft at 4:45AM Apr 16, 2021Observed: 12.36 ft at 5:00AM Apr 16, 2021Observed: 12.39 ft at 5:15AM Apr 16, 2021Observed: 12.38 ft at 5:30AM Apr 16, 2021Observed: 12.37 ft at 5:45AM Apr 16, 2021Observed: 12.39 ft at 6:00AM Apr 16, 2021Observed: 12.35 ft at 6:15AM Apr 16, 2021Observed: 12.35 ft at 6:30AM Apr 16, 2021Observed: 12.38 ft at 6:45AM Apr 16, 2021Observed: 12.39 ft at 7:00AM Apr 16, 2021Observed: 12.35 ft at 7:15AM Apr 16, 2021Observed: 12.35 ft at 7:30AM Apr 16, 2021Observed: 12.36 ft at 7:45AM Apr 16, 2021Observed: 12.38 ft at 8:00AM Apr 16, 2021Observed: 12.38 ft at 8:15AM Apr 16, 2021Observed: 12.36 ft at 8:30AM Apr 16, 2021Observed: 12.37 ft at 8:45AM Apr 16, 2021Observed: 12.38 ft at 9:00AM Apr 16, 2021Observed: 12.36 ft at 9:15AM Apr 16, 2021Observed: 12.37 ft at 9:30AM Apr 16, 2021Observed: 12.38 ft at 11:45AM Apr 16, 2021Observed: 12.33 ft at 12:00PM Apr 16, 2021Observed: 12.34 ft at 12:15PM Apr 16, 2021Observed: 12.32 ft at 12:30PM Apr 16, 2021Observed: 12.36 ft at 12:45PM Apr 16, 2021Observed: 12.35 ft at 1:00PM Apr 16, 2021Observed: 12.4 ft at 1:15PM Apr 16, 2021Observed: 12.34 ft at 1:30PM Apr 16, 2021Observed: 12.34 ft at 1:45PM Apr 16, 2021Observed: 12.33 ft at 2:00PM Apr 16, 2021Observed: 12.33 ft at 2:15PM Apr 16, 2021Observed: 12.34 ft at 2:30PM Apr 16, 2021Observed: 12.35 ft at 2:45PM Apr 16, 2021Observed: 12.34 ft at 3:00PM Apr 16, 2021Observed: 12.33 ft at 3:15PM Apr 16, 2021Observed: 12.32 ft at 3:30PM Apr 16, 2021Observed: 12.33 ft at 3:45PM Apr 16, 2021Observed: 12.33 ft at 4:00PM Apr 16, 2021Observed: 12.35 ft at 4:15PM Apr 16, 2021Observed: 12.35 ft at 4:30PM Apr 16, 2021Observed: 12.34 ft at 4:45PM Apr 16, 2021Observed: 12.33 ft at 5:00PM Apr 16, 2021Observed: 12.36 ft at 5:15PM Apr 16, 2021Observed: 12.34 ft at 5:30PM Apr 16, 2021Observed: 12.34 ft at 5:45PM Apr 16, 2021Observed: 12.32 ft at 6:00PM Apr 16, 2021Observed: 12.34 ft at 6:15PM Apr 16, 2021Observed: 12.31 ft at 6:30PM Apr 16, 2021Observed: 12.3 ft at 6:45PM Apr 16, 2021Observed: 12.36 ft at 7:00PM Apr 16, 2021Observed: 12.32 ft at 7:15PM Apr 16, 2021Observed: 12.32 ft at 7:16PM Apr 16, 2021Observed: 12.31 ft at 7:30PM Apr 16, 2021Observed: 12.31 ft at 7:31PM Apr 16, 2021Observed: 12.32 ft at 7:45PM Apr 16, 2021Observed: 12.32 ft at 7:46PM Apr 16, 2021Observed: 12.32 ft at 8:00PM Apr 16, 2021Observed: 12.3 ft at 8:15PM Apr 16, 2021Observed: 12.32 ft at 8:30PM Apr 16, 2021Observed: 12.31 ft at 8:45PM Apr 16, 2021Observed: 12.32 ft at 9:00PM Apr 16, 2021Observed: 12.32 ft at 9:15PM Apr 16, 2021Observed: 12.32 ft at 9:30PM Apr 16, 2021Observed: 12.31 ft at 9:45PM Apr 16, 2021Observed: 12.29 ft at 10:00PM Apr 16, 2021Observed: 12.31 ft at 10:15PM Apr 16, 2021Observed: 12.33 ft at 10:30PM Apr 16, 2021Observed: 12.31 ft at 10:45PM Apr 16, 2021Observed: 12.3 ft at 11:00PM Apr 16, 2021Observed: 12.31 ft at 11:15PM Apr 16, 2021Observed: 12.35 ft at 11:30PM Apr 16, 2021Observed: 12.31 ft at 11:45PM Apr 16, 2021Observed: 12.31 ft at 12:00AM Apr 17, 2021Observed: 12.29 ft at 12:15AM Apr 17, 2021Observed: 12.29 ft at 12:30AM Apr 17, 2021Observed: 12.32 ft at 12:45AM Apr 17, 2021Observed: 12.29 ft at 1:00AM Apr 17, 2021Observed: 12.32 ft at 1:15AM Apr 17, 2021Observed: 12.31 ft at 1:30AM Apr 17, 2021Observed: 12.3 ft at 1:45AM Apr 17, 2021Observed: 12.31 ft at 2:00AM Apr 17, 2021Observed: 12.32 ft at 2:15AM Apr 17, 2021Observed: 12.31 ft at 2:30AM Apr 17, 2021Observed: 12.33 ft at 2:45AM Apr 17, 2021Observed: 12.31 ft at 3:00AM Apr 17, 2021Observed: 12.31 ft at 3:15AM Apr 17, 2021Observed: 12.31 ft at 3:17AM Apr 17, 2021Observed: 12.31 ft at 3:30AM Apr 17, 2021Observed: 12.31 ft at 3:32AM Apr 17, 2021Observed: 12.25 ft at 3:45AM Apr 17, 2021Observed: 12.25 ft at 3:47AM Apr 17, 2021Observed: 12.28 ft at 4:00AM Apr 17, 2021Observed: 12.27 ft at 4:15AM Apr 17, 2021Observed: 12.29 ft at 4:30AM Apr 17, 2021Observed: 12.27 ft at 4:45AM Apr 17, 2021Observed: 12.29 ft at 5:00AM Apr 17, 2021Observed: 12.26 ft at 5:15AM Apr 17, 2021Observed: 12.25 ft at 5:30AM Apr 17, 2021Observed: 12.32 ft at 5:45AM Apr 17, 2021Observed: 12.26 ft at 6:00AM Apr 17, 2021Observed: 12.3 ft at 6:15AM Apr 17, 2021Observed: 12.28 ft at 6:30AM Apr 17, 2021Observed: 12.27 ft at 6:45AM Apr 17, 2021Observed: 12.3 ft at 7:00AM Apr 17, 2021Observed: 12.29 ft at 7:15AM Apr 17, 2021Observed: 12.26 ft at 7:30AM Apr 17, 2021Observed: 12.31 ft at 7:45AM Apr 17, 2021Observed: 12.29 ft at 8:00AM Apr 17, 2021Observed: 12.3 ft at 8:15AM Apr 17, 2021Observed: 12.25 ft at 8:30AM Apr 17, 2021Observed: 12.28 ft at 8:45AM Apr 17, 2021Observed: 12.28 ft at 9:00AM Apr 17, 2021Observed: 12.25 ft at 9:15AM Apr 17, 2021Observed: 12.27 ft at 9:30AM Apr 17, 2021Observed: 12.29 ft at 9:45AM Apr 17, 2021Observed: 12.31 ft at 10:00AM Apr 17, 2021Observed: 12.29 ft at 10:15AM Apr 17, 2021Observed: 12.27 ft at 10:30AM Apr 17, 2021Observed: 12.25 ft at 10:45AM Apr 17, 2021Observed: 12.28 ft at 11:00AM Apr 17, 2021Observed: 12.27 ft at 11:15AM Apr 17, 2021Observed: 12.27 ft at 11:16AM Apr 17, 2021Observed: 12.26 ft at 11:30AM Apr 17, 2021Observed: 12.26 ft at 11:31AM Apr 17, 2021Observed: 12.28 ft at 11:45AM Apr 17, 2021Observed: 12.28 ft at 11:46AM Apr 17, 2021Observed: 12.26 ft at 12:00PM Apr 17, 2021Observed: 12.24 ft at 12:15PM Apr 17, 2021Observed: 12.25 ft at 12:30PM Apr 17, 2021Observed: 12.28 ft at 12:45PM Apr 17, 2021Observed: 12.26 ft at 1:00PM Apr 17, 2021Observed: 12.25 ft at 1:15PM Apr 17, 2021Observed: 12.24 ft at 1:30PM Apr 17, 2021Observed: 12.28 ft at 1:45PM Apr 17, 2021Observed: 12.24 ft at 2:00PM Apr 17, 2021Observed: 12.25 ft at 2:15PM Apr 17, 2021Observed: 12.29 ft at 2:30PM Apr 17, 2021Observed: 12.23 ft at 2:45PM Apr 17, 2021Observed: 12.25 ft at 3:00PM Apr 17, 2021Observed: 12.29 ft at 3:15PM Apr 17, 2021Observed: 12.22 ft at 3:30PM Apr 17, 2021Observed: 12.3 ft at 3:45PM Apr 17, 2021Observed: 12.25 ft at 4:00PM Apr 17, 2021Observed: 12.24 ft at 4:15PM Apr 17, 2021Observed: 12.24 ft at 4:30PM Apr 17, 2021Observed: 12.27 ft at 4:45PM Apr 17, 2021Observed: 12.24 ft at 5:00PM Apr 17, 2021Observed: 12.27 ft at 5:15PM Apr 17, 2021Observed: 12.25 ft at 5:30PM Apr 17, 2021Observed: 12.25 ft at 5:45PM Apr 17, 2021Observed: 12.24 ft at 6:00PM Apr 17, 2021Observed: 12.24 ft at 6:15PM Apr 17, 2021Observed: 12.23 ft at 6:30PM Apr 17, 2021Observed: 12.23 ft at 6:45PM Apr 17, 2021Observed: 12.2 ft at 7:00PM Apr 17, 2021Observed: 12.24 ft at 7:15PM Apr 17, 2021Observed: 12.23 ft at 7:30PM Apr 17, 2021Observed: 12.26 ft at 7:45PM Apr 17, 2021Observed: 12.26 ft at 8:00PM Apr 17, 2021Observed: 12.24 ft at 8:15PM Apr 17, 2021Observed: 12.25 ft at 8:30PM Apr 17, 2021Observed: 12.22 ft at 8:45PM Apr 17, 2021Observed: 12.21 ft at 9:00PM Apr 17, 2021Observed: 12.25 ft at 9:15PM Apr 17, 2021Observed: 12.23 ft at 9:30PM Apr 17, 2021Observed: 12.23 ft at 9:45PM Apr 17, 2021Observed: 12.25 ft at 10:00PM Apr 17, 2021Observed: 12.23 ft at 10:15PM Apr 17, 2021Observed: 12.23 ft at 10:30PM Apr 17, 2021Observed: 12.21 ft at 10:45PM Apr 17, 2021Observed: 12.2 ft at 11:00PM Apr 17, 2021Observed: 12.19 ft at 11:15PM Apr 17, 2021Observed: 12.25 ft at 11:30PM Apr 17, 2021Observed: 12.22 ft at 11:45PM Apr 17, 2021Observed: 12.21 ft at 12:00AM Apr 18, 2021Observed: 12.23 ft at 12:15AM Apr 18, 2021Observed: 12.24 ft at 12:30AM Apr 18, 2021Observed: 12.22 ft at 12:45AM Apr 18, 2021Observed: 12.22 ft at 1:00AM Apr 18, 2021Observed: 12.21 ft at 1:15AM Apr 18, 2021Observed: 12.19 ft at 1:30AM Apr 18, 2021Observed: 12.21 ft at 1:45AM Apr 18, 2021Observed: 12.22 ft at 2:00AM Apr 18, 2021Observed: 12.2 ft at 2:15AM Apr 18, 2021Observed: 12.17 ft at 2:30AM Apr 18, 2021Observed: 12.19 ft at 2:45AM Apr 18, 2021Observed: 12.19 ft at 3:00AM Apr 18, 2021Observed: 12.22 ft at 3:15AM Apr 18, 2021Observed: 12.22 ft at 3:17AM Apr 18, 2021Observed: 12.2 ft at 3:30AM Apr 18, 2021Observed: 12.2 ft at 3:32AM Apr 18, 2021Observed: 12.21 ft at 3:45AM Apr 18, 2021Observed: 12.21 ft at 3:47AM Apr 18, 2021Observed: 12.17 ft at 4:00AM Apr 18, 2021Observed: 12.21 ft at 4:15AM Apr 18, 2021Observed: 12.19 ft at 4:30AM Apr 18, 2021Observed: 12.16 ft at 4:45AM Apr 18, 2021Observed: 12.15 ft at 5:00AM Apr 18, 2021Observed: 12.18 ft at 5:15AM Apr 18, 2021Observed: 12.16 ft at 5:30AM Apr 18, 2021Observed: 12.19 ft at 5:45AM Apr 18, 2021Observed: 12.19 ft at 6:00AM Apr 18, 2021Observed: 12.19 ft at 6:15AM Apr 18, 2021Observed: 12.15 ft at 6:30AM Apr 18, 2021Observed: 12.17 ft at 6:45AM Apr 18, 2021Observed: 12.14 ft at 7:00AM Apr 18, 2021Observed: 12.13 ft at 7:15AM Apr 18, 2021Observed: 12.16 ft at 7:30AM Apr 18, 2021Observed: 12.16 ft at 7:45AM Apr 18, 2021Observed: 12.2 ft at 8:00AM Apr 18, 2021Observed: 12.14 ft at 8:15AM Apr 18, 2021Observed: 12.18 ft at 8:30AM Apr 18, 2021Observed: 12.21 ft at 8:45AM Apr 18, 2021Observed: 12.17 ft at 9:00AM Apr 18, 2021Observed: 12.15 ft at 9:15AM Apr 18, 2021Observed: 12.14 ft at 9:30AM Apr 18, 2021Observed: 12.14 ft at 9:45AM Apr 18, 2021Observed: 12.16 ft at 10:00AM Apr 18, 2021Observed: 12.12 ft at 10:15AM Apr 18, 2021Observed: 12.16 ft at 10:30AM Apr 18, 2021Observed: 12.15 ft at 10:45AM Apr 18, 2021Observed: 12.15 ft at 11:00AM Apr 18, 2021Observed: 12.16 ft at 11:15AM Apr 18, 2021Observed: 12.16 ft at 11:16AM Apr 18, 2021Observed: 12.15 ft at 11:30AM Apr 18, 2021Observed: 12.15 ft at 11:31AM Apr 18, 2021Observed: 12.19 ft at 11:45AM Apr 18, 2021Observed: 12.19 ft at 11:46AM Apr 18, 2021Observed: 12.19 ft at 12:00PM Apr 18, 2021Observed: 12.14 ft at 12:15PM Apr 18, 2021Observed: 12.15 ft at 12:30PM Apr 18, 2021Observed: 12.16 ft at 12:45PM Apr 18, 2021Observed: 12.15 ft at 1:00PM Apr 18, 2021Observed: 12.15 ft at 1:15PM Apr 18, 2021Observed: 12.12 ft at 1:30PM Apr 18, 2021Observed: 12.16 ft at 1:45PM Apr 18, 2021Observed: 12.11 ft at 2:00PM Apr 18, 2021Observed: 12.13 ft at 2:15PM Apr 18, 2021Observed: 12.14 ft at 2:30PM Apr 18, 2021Observed: 12.15 ft at 2:45PM Apr 18, 2021Observed: 12.14 ft at 3:00PM Apr 18, 2021Observed: 12.14 ft at 3:15PM Apr 18, 2021Observed: 12.14 ft at 3:30PM Apr 18, 2021Observed: 12.15 ft at 3:45PM Apr 18, 2021Observed: 12.15 ft at 4:00PM Apr 18, 2021Observed: 12.14 ft at 4:15PM Apr 18, 2021Observed: 12.15 ft at 4:30PM Apr 18, 2021Observed: 12.15 ft at 4:45PM Apr 18, 2021Observed: 12.13 ft at 5:00PM Apr 18, 2021Observed: 12.09 ft at 5:15PM Apr 18, 2021Observed: 12.13 ft at 5:30PM Apr 18, 2021Observed: 12.13 ft at 5:45PM Apr 18, 2021Observed: 12.13 ft at 6:00PM Apr 18, 2021Observed: 12.15 ft at 6:15PM Apr 18, 2021Observed: 12.09 ft at 6:30PM Apr 18, 2021Observed: 12.11 ft at 6:45PM Apr 18, 2021Observed: 12.11 ft at 7:00PM Apr 18, 2021Observed: 12.09 ft at 7:15PM Apr 18, 2021Observed: 12.09 ft at 7:16PM Apr 18, 2021Observed: 12.1 ft at 7:30PM Apr 18, 2021Observed: 12.1 ft at 7:31PM Apr 18, 2021Observed: 12.08 ft at 7:45PM Apr 18, 2021Observed: 12.08 ft at 7:46PM Apr 18, 2021Observed: 12.08 ft at 8:00PM Apr 18, 2021Observed: 12.12 ft at 8:15PM Apr 18, 2021Observed: 12.11 ft at 8:30PM Apr 18, 2021Observed: 12.12 ft at 8:45PM Apr 18, 2021Observed: 12.1 ft at 9:00PM Apr 18, 2021Observed: 12.09 ft at 9:15PM Apr 18, 2021Observed: 12.08 ft at 9:30PM Apr 18, 2021Observed: 12.06 ft at 9:45PM Apr 18, 2021Observed: 12.08 ft at 10:00PM Apr 18, 2021Observed: 12.07 ft at 10:15PM Apr 18, 2021Observed: 12.04 ft at 10:30PM Apr 18, 2021Observed: 12.06 ft at 10:45PM Apr 18, 2021Observed: 12.03 ft at 11:00PM Apr 18, 2021Observed: 12.03 ft at 11:15PM Apr 18, 2021Observed: 12.04 ft at 11:30PM Apr 18, 2021Observed: 12.05 ft at 11:45PM Apr 18, 2021Observed: 12.07 ft at 12:00AM Apr 19, 2021Observed: 12.05 ft at 12:15AM Apr 19, 2021Observed: 12.03 ft at 12:30AM Apr 19, 2021Observed: 12.07 ft at 12:45AM Apr 19, 2021Observed: 12.03 ft at 1:00AM Apr 19, 2021Observed: 12.05 ft at 1:15AM Apr 19, 2021Observed: 12.02 ft at 1:30AM Apr 19, 2021Observed: 12.05 ft at 1:45AM Apr 19, 2021Observed: 12.06 ft at 2:00AM Apr 19, 2021Observed: 12.04 ft at 2:15AM Apr 19, 2021Observed: 12.04 ft at 2:30AM Apr 19, 2021Observed: 12.01 ft at 2:45AM Apr 19, 2021Observed: 12.05 ft at 3:00AM Apr 19, 2021Observed: 12.05 ft at 3:15AM Apr 19, 2021Observed: 12.05 ft at 3:17AM Apr 19, 2021Observed: 12.04 ft at 3:30AM Apr 19, 2021Observed: 12.04 ft at 3:32AM Apr 19, 2021Observed: 12.05 ft at 3:45AM Apr 19, 2021Observed: 12.05 ft at 3:47AM Apr 19, 2021Observed: 11.98 ft at 4:00AM Apr 19, 2021Observed: 12.05 ft at 4:15AM Apr 19, 2021Observed: 12.01 ft at 4:30AM Apr 19, 2021Observed: 12.02 ft at 4:45AM Apr 19, 2021Observed: 12.03 ft at 5:00AM Apr 19, 2021Observed: 12.03 ft at 5:15AM Apr 19, 2021Observed: 12.03 ft at 5:30AM Apr 19, 2021Observed: 12.05 ft at 5:45AM Apr 19, 2021Observed: 11.98 ft at 6:00AM Apr 19, 2021Observed: 12.04 ft at 6:15AM Apr 19, 2021Observed: 12.04 ft at 6:30AM Apr 19, 2021Observed: 11.99 ft at 6:45AM Apr 19, 2021Observed: 12 ft at 7:00AM Apr 19, 2021Observed: 11.99 ft at 7:15AM Apr 19, 2021Observed: 12.03 ft at 7:30AM Apr 19, 2021Observed: 12 ft at 7:45AM Apr 19, 2021Observed: 12.03 ft at 8:00AM Apr 19, 2021Observed: 12.01 ft at 8:15AM Apr 19, 2021Observed: 12.01 ft at 8:30AM Apr 19, 2021Observed: 12.02 ft at 8:45AM Apr 19, 2021Observed: 12.03 ft at 9:00AM Apr 19, 2021Observed: 12.01 ft at 9:15AM Apr 19, 2021Observed: 12 ft at 9:30AM Apr 19, 2021Observed: 12.02 ft at 9:45AM Apr 19, 2021Observed: 12.01 ft at 10:00AM Apr 19, 2021Observed: 12.01 ft at 10:15AM Apr 19, 2021Observed: 12 ft at 10:30AM Apr 19, 2021Observed: 12.01 ft at 10:45AM Apr 19, 2021Observed: 12.03 ft at 11:00AM Apr 19, 2021Observed: 11.98 ft at 11:15AM Apr 19, 2021Observed: 12.01 ft at 11:30AM Apr 19, 2021Observed: 12.01 ft at 11:31AM Apr 19, 2021Observed: 12.02 ft at 11:45AM Apr 19, 2021Observed: 12.02 ft at 11:46AM Apr 19, 2021Observed: 11.99 ft at 12:00PM Apr 19, 2021Observed: 11.99 ft at 12:01PM Apr 19, 2021Observed: 12 ft at 12:15PM Apr 19, 2021Observed: 12 ft at 12:30PM Apr 19, 2021Observed: 12 ft at 12:45PM Apr 19, 2021Observed: 11.98 ft at 1:00PM Apr 19, 2021Observed: 11.99 ft at 1:15PM Apr 19, 2021Observed: 12.03 ft at 1:30PM Apr 19, 2021Observed: 12.02 ft at 1:45PM Apr 19, 2021Observed: 12 ft at 2:00PM Apr 19, 2021Observed: 11.99 ft at 2:15PM Apr 19, 2021Observed: 12 ft at 2:30PM Apr 19, 2021Observed: 11.98 ft at 2:45PM Apr 19, 2021Observed: 12 ft at 3:00PM Apr 19, 2021Observed: 11.99 ft at 3:15PM Apr 19, 2021Observed: 11.99 ft at 3:30PM Apr 19, 2021Observed: 11.98 ft at 3:45PM Apr 19, 2021Observed: 11.99 ft at 4:00PM Apr 19, 2021Observed: 11.97 ft at 4:15PM Apr 19, 2021Observed: 12 ft at 4:30PM Apr 19, 2021Observed: 11.98 ft at 4:45PM Apr 19, 2021Observed: 11.98 ft at 5:00PM Apr 19, 2021Observed: 11.99 ft at 5:15PM Apr 19, 2021Observed: 11.97 ft at 5:30PM Apr 19, 2021Observed: 11.98 ft at 5:45PM Apr 19, 2021Observed: 11.97 ft at 6:00PM Apr 19, 2021Observed: 11.94 ft at 6:15PM Apr 19, 2021Observed: 11.96 ft at 6:30PM Apr 19, 2021Observed: 11.97 ft at 6:45PM Apr 19, 2021Observed: 11.98 ft at 7:00PM Apr 19, 2021Observed: 11.94 ft at 7:15PM Apr 19, 2021Observed: 11.96 ft at 7:30PM Apr 19, 2021Observed: 11.96 ft at 7:31PM Apr 19, 2021Observed: 11.96 ft at 7:45PM Apr 19, 2021Observed: 11.96 ft at 7:46PM Apr 19, 2021Observed: 11.97 ft at 8:00PM Apr 19, 2021Observed: 11.97 ft at 8:01PM Apr 19, 2021Observed: 11.95 ft at 8:15PM Apr 19, 2021Observed: 11.95 ft at 8:30PM Apr 19, 2021Observed: 11.98 ft at 8:45PM Apr 19, 2021Observed: 12 ft at 9:00PM Apr 19, 2021Observed: 11.97 ft at 9:15PM Apr 19, 2021Observed: 11.97 ft at 9:30PM Apr 19, 2021Observed: 11.97 ft at 9:45PM Apr 19, 2021Observed: 11.97 ft at 10:00PM Apr 19, 2021Observed: 11.97 ft at 10:15PM Apr 19, 2021Observed: 11.95 ft at 10:30PM Apr 19, 2021Observed: 11.96 ft at 10:45PM Apr 19, 2021Observed: 11.93 ft at 11:00PM Apr 19, 2021Observed: 11.95 ft at 11:15PM Apr 19, 2021Observed: 11.93 ft at 11:30PM Apr 19, 2021Observed: 11.95 ft at 11:45PM Apr 19, 2021Observed: 11.93 ft at 12:00AM Apr 20, 2021Observed: 11.96 ft at 12:15AM Apr 20, 2021Observed: 11.92 ft at 12:30AM Apr 20, 2021Observed: 11.93 ft at 12:45AM Apr 20, 2021Observed: 11.95 ft at 1:00AM Apr 20, 2021Observed: 11.92 ft at 1:15AM Apr 20, 2021Observed: 11.9 ft at 1:30AM Apr 20, 2021Observed: 11.93 ft at 1:45AM Apr 20, 2021Observed: 11.94 ft at 2:00AM Apr 20, 2021Observed: 11.93 ft at 2:15AM Apr 20, 2021Observed: 11.93 ft at 2:30AM Apr 20, 2021Observed: 11.94 ft at 2:45AM Apr 20, 2021Observed: 11.92 ft at 3:00AM Apr 20, 2021Observed: 11.9 ft at 3:15AM Apr 20, 2021Observed: 11.93 ft at 3:30AM Apr 20, 2021Observed: 11.93 ft at 3:32AM Apr 20, 2021Observed: 11.92 ft at 3:45AM Apr 20, 2021Observed: 11.92 ft at 3:47AM Apr 20, 2021Observed: 11.9 ft at 4:00AM Apr 20, 2021Observed: 11.9 ft at 4:02AM Apr 20, 2021Observed: 11.94 ft at 4:15AM Apr 20, 2021Observed: 11.95 ft at 4:30AM Apr 20, 2021Observed: 11.91 ft at 4:45AM Apr 20, 2021Observed: 11.93 ft at 5:00AM Apr 20, 2021Observed: 11.91 ft at 5:15AM Apr 20, 2021Observed: 11.89 ft at 5:30AM Apr 20, 2021Observed: 11.91 ft at 5:45AM Apr 20, 2021Observed: 11.9 ft at 6:00AM Apr 20, 2021Observed: 11.86 ft at 6:15AM Apr 20, 2021Observed: 11.88 ft at 6:30AM Apr 20, 2021Observed: 11.89 ft at 6:45AM Apr 20, 2021Observed: 11.9 ft at 7:00AM Apr 20, 2021Observed: 11.9 ft at 7:15AM Apr 20, 2021Observed: 11.89 ft at 7:30AM Apr 20, 2021Observed: 11.89 ft at 7:45AM Apr 20, 2021Observed: 11.9 ft at 8:00AM Apr 20, 2021Observed: 11.88 ft at 8:15AM Apr 20, 2021Observed: 11.9 ft at 8:30AM Apr 20, 2021Observed: 11.89 ft at 8:45AM Apr 20, 2021Observed: 11.89 ft at 9:00AM Apr 20, 2021Observed: 11.88 ft at 9:15AM Apr 20, 2021Observed: 11.9 ft at 9:30AM Apr 20, 2021Observed: 11.89 ft at 9:45AM Apr 20, 2021Observed: 11.9 ft at 10:00AM Apr 20, 2021Observed: 11.88 ft at 10:15AM Apr 20, 2021Observed: 11.88 ft at 10:30AM Apr 20, 2021Observed: 11.87 ft at 10:45AM Apr 20, 2021Observed: 11.9 ft at 11:00AM Apr 20, 2021Observed: 11.92 ft at 11:15AM Apr 20, 2021Observed: 11.88 ft at 11:30AM Apr 20, 2021Observed: 11.88 ft at 11:31AM Apr 20, 2021Observed: 11.9 ft at 11:45AM Apr 20, 2021Observed: 11.9 ft at 11:46AM Apr 20, 2021Observed: 11.92 ft at 12:00PM Apr 20, 2021Observed: 11.92 ft at 12:01PM Apr 20, 2021Observed: 11.87 ft at 12:15PM Apr 20, 2021Observed: 11.89 ft at 12:30PM Apr 20, 2021Observed: 11.89 ft at 12:45PM Apr 20, 2021Observed: 11.91 ft at 1:00PM Apr 20, 2021Observed: 11.88 ft at 1:15PM Apr 20, 2021Observed: 11.92 ft at 1:30PM Apr 20, 2021Observed: 11.92 ft at 1:45PM Apr 20, 2021Observed: 11.89 ft at 2:00PM Apr 20, 2021Observed: 11.88 ft at 2:15PM Apr 20, 2021Observed: 11.89 ft at 2:30PM Apr 20, 2021Observed: 11.87 ft at 2:45PM Apr 20, 2021Observed: 11.88 ft at 3:00PM Apr 20, 2021Observed: 11.89 ft at 3:15PM Apr 20, 2021Observed: 11.87 ft at 3:30PM Apr 20, 2021Observed: 11.85 ft at 3:45PM Apr 20, 2021Observed: 11.88 ft at 4:00PM Apr 20, 2021Observed: 11.84 ft at 4:15PM Apr 20, 2021Observed: 11.88 ft at 4:30PM Apr 20, 2021Observed: 11.87 ft at 4:45PM Apr 20, 2021Observed: 11.88 ft at 5:00PM Apr 20, 2021Observed: 11.87 ft at 5:15PM Apr 20, 2021Observed: 11.91 ft at 5:30PM Apr 20, 2021Observed: 11.84 ft at 5:45PM Apr 20, 2021Observed: 11.89 ft at 6:00PM Apr 20, 2021Observed: 11.85 ft at 6:15PM Apr 20, 2021Observed: 11.84 ft at 6:30PM Apr 20, 2021Observed: 11.85 ft at 6:45PM Apr 20, 2021Observed: 11.8 ft at 7:00PM Apr 20, 2021Observed: 11.87 ft at 7:15PM Apr 20, 2021Observed: 11.82 ft at 7:30PM Apr 20, 2021Observed: 11.82 ft at 7:31PM Apr 20, 2021Observed: 11.85 ft at 7:45PM Apr 20, 2021Observed: 11.85 ft at 7:46PM Apr 20, 2021Observed: 11.86 ft at 8:00PM Apr 20, 2021Observed: 11.86 ft at 8:01PM Apr 20, 2021Observed: 11.85 ft at 8:15PM Apr 20, 2021Observed: 11.84 ft at 8:30PM Apr 20, 2021Observed: 11.8 ft at 8:45PM Apr 20, 2021Observed: 11.82 ft at 9:00PM Apr 20, 2021Observed: 11.84 ft at 9:15PM Apr 20, 2021Observed: 11.86 ft at 9:30PM Apr 20, 2021Observed: 11.83 ft at 9:45PM Apr 20, 2021Observed: 11.82 ft at 10:00PM Apr 20, 2021Observed: 11.81 ft at 10:15PM Apr 20, 2021Observed: 11.82 ft at 10:30PM Apr 20, 2021Observed: 11.81 ft at 10:45PM Apr 20, 2021Observed: 11.82 ft at 11:00PM Apr 20, 2021Observed: 11.8 ft at 11:15PM Apr 20, 2021Observed: 11.8 ft at 11:30PM Apr 20, 2021Observed: 11.82 ft at 11:45PM Apr 20, 2021Observed: 11.8 ft at 12:00AM Apr 21, 2021Observed: 11.82 ft at 12:15AM Apr 21, 2021Observed: 11.82 ft at 12:30AM Apr 21, 2021Observed: 11.78 ft at 12:45AM Apr 21, 2021Observed: 11.8 ft at 1:00AM Apr 21, 2021Observed: 11.83 ft at 1:15AM Apr 21, 2021Observed: 11.79 ft at 1:30AM Apr 21, 2021Observed: 11.79 ft at 1:45AM Apr 21, 2021Observed: 11.8 ft at 2:00AM Apr 21, 2021Observed: 11.79 ft at 2:15AM Apr 21, 2021Observed: 11.77 ft at 2:30AM Apr 21, 2021Observed: 11.76 ft at 2:45AM Apr 21, 2021Observed: 11.78 ft at 3:00AM Apr 21, 2021Observed: 11.75 ft at 3:15AM Apr 21, 2021Observed: 11.77 ft at 3:30AM Apr 21, 2021Observed: 11.77 ft at 3:31AM Apr 21, 2021Observed: 11.78 ft at 3:45AM Apr 21, 2021Observed: 11.78 ft at 3:46AM Apr 21, 2021Observed: 11.74 ft at 4:00AM Apr 21, 2021Observed: 11.74 ft at 4:01AM Apr 21, 2021Observed: 11.78 ft at 4:15AM Apr 21, 2021Observed: 11.79 ft at 4:30AM Apr 21, 2021Observed: 11.78 ft at 4:45AM Apr 21, 2021Observed: 11.76 ft at 5:00AM Apr 21, 2021Observed: 11.77 ft at 5:15AM Apr 21, 2021Observed: 11.76 ft at 5:30AM Apr 21, 2021Observed: 11.79 ft at 5:45AM Apr 21, 2021Observed: 11.75 ft at 6:00AM Apr 21, 2021Observed: 11.77 ft at 6:15AM Apr 21, 2021Observed: 11.76 ft at 6:30AM Apr 21, 2021Observed: 11.75 ft at 6:45AM Apr 21, 2021Observed: 11.78 ft at 7:00AM Apr 21, 2021Observed: 11.77 ft at 7:15AM Apr 21, 2021Observed: 11.75 ft at 7:30AM Apr 21, 2021Observed: 11.76 ft at 7:45AM Apr 21, 2021Observed: 11.76 ft at 8:00AM Apr 21, 2021Observed: 11.76 ft at 8:15AM Apr 21, 2021Observed: 11.76 ft at 8:30AM Apr 21, 2021Observed: 11.78 ft at 8:45AM Apr 21, 2021Observed: 11.78 ft at 9:00AM Apr 21, 2021Observed: 11.78 ft at 9:15AM Apr 21, 2021Observed: 11.8 ft at 9:30AM Apr 21, 2021Observed: 11.77 ft at 9:45AM Apr 21, 2021Observed: 11.75 ft at 10:00AM Apr 21, 2021Observed: 11.75 ft at 10:15AM Apr 21, 2021Observed: 11.77 ft at 10:30AM Apr 21, 2021Observed: 11.75 ft at 10:45AM Apr 21, 2021Observed: 11.77 ft at 11:00AM Apr 21, 2021Observed: 11.78 ft at 11:15AM Apr 21, 2021Observed: 11.77 ft at 11:30AM Apr 21, 2021Observed: 11.77 ft at 11:31AM Apr 21, 2021Observed: 11.79 ft at 11:45AM Apr 21, 2021Observed: 11.79 ft at 11:46AM Apr 21, 2021Observed: 11.76 ft at 12:00PM Apr 21, 2021Observed: 11.76 ft at 12:01PM Apr 21, 2021Observed: 11.79 ft at 12:15PM Apr 21, 2021Observed: 11.78 ft at 12:30PM Apr 21, 2021Observed: 11.78 ft at 12:45PM Apr 21, 2021Observed: 11.77 ft at 1:00PM Apr 21, 2021Observed: 11.78 ft at 1:15PM Apr 21, 2021Observed: 11.78 ft at 1:30PM Apr 21, 2021Observed: 11.81 ft at 1:45PM Apr 21, 2021Observed: 11.78 ft at 2:00PM Apr 21, 2021Observed: 11.8 ft at 2:15PM Apr 21, 2021Observed: 11.79 ft at 2:30PM Apr 21, 2021Observed: 11.78 ft at 2:45PM Apr 21, 2021Observed: 11.81 ft at 3:00PM Apr 21, 2021Observed: 11.81 ft at 3:15PM Apr 21, 2021Observed: 11.79 ft at 3:30PM Apr 21, 2021Observed: 11.78 ft at 3:45PM Apr 21, 2021Observed: 11.82 ft at 4:00PM Apr 21, 2021Observed: 11.79 ft at 4:15PM Apr 21, 2021Observed: 11.81 ft at 4:30PM Apr 21, 2021Observed: 11.83 ft at 4:45PM Apr 21, 2021Observed: 11.8 ft at 5:00PM Apr 21, 2021Observed: 11.82 ft at 5:15PM Apr 21, 2021Observed: 11.82 ft at 5:30PM Apr 21, 2021Observed: 11.8 ft at 5:45PM Apr 21, 2021Observed: 11.82 ft at 6:00PM Apr 21, 2021Observed: 11.82 ft at 6:15PM Apr 21, 2021Observed: 11.84 ft at 6:30PM Apr 21, 2021Observed: 11.82 ft at 6:45PM Apr 21, 2021Observed: 11.82 ft at 7:00PM Apr 21, 2021Observed: 11.82 ft at 7:15PM Apr 21, 2021Observed: 11.83 ft at 7:30PM Apr 21, 2021Observed: 11.83 ft at 7:31PM Apr 21, 2021Observed: 11.84 ft at 7:45PM Apr 21, 2021Observed: 11.84 ft at 7:46PM Apr 21, 2021Observed: 11.87 ft at 8:00PM Apr 21, 2021Observed: 11.87 ft at 8:01PM Apr 21, 2021Observed: 11.85 ft at 8:15PM Apr 21, 2021Observed: 11.86 ft at 8:30PM Apr 21, 2021Observed: 11.85 ft at 8:45PM Apr 21, 2021Observed: 11.85 ft at 9:00PM Apr 21, 2021Observed: 11.85 ft at 9:15PM Apr 21, 2021Observed: 11.86 ft at 9:30PM Apr 21, 2021USGS--Water Resources of the United StatesSXCI4(plotting HGIRG) Graph Created (10:04PM Apr 21, 2021)ObservedLatest observed value: 11.86 ft at 9:30 PM CDT 21-Apr-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 48 hours into the future from the forecast issuance time.

NOTE: Gauge reading may be affected by ice.

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) 19.04 ft on 05/04/2016
(5) 17.73 ft on 05/26/2017
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 37.46 ft on 03/17/2019
(2) 30.50 ft on 06/25/2018 (P)
(3) 17.73 ft on 05/26/2017
(4) 19.04 ft on 05/04/2016
(5) 15.09 ft on 07/10/2015
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
Collaborative Agencies Collapse
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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