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Hydrograph River at a Glance Download
Big Sioux River at Sioux City Stage (ft)Flow (kcfs)Observed: 19.82 ft at 4:00PM Dec 02, 2019Observed: 19.83 ft at 4:15PM Dec 02, 2019Observed: 19.84 ft at 4:30PM Dec 02, 2019Observed: 19.84 ft at 4:45PM Dec 02, 2019Observed: 19.83 ft at 5:00PM Dec 02, 2019Observed: 19.82 ft at 5:15PM Dec 02, 2019Observed: 19.81 ft at 5:30PM Dec 02, 2019Observed: 19.8 ft at 5:45PM Dec 02, 2019Observed: 19.82 ft at 6:00PM Dec 02, 2019Observed: 19.83 ft at 6:15PM Dec 02, 2019Observed: 19.82 ft at 6:30PM Dec 02, 2019Observed: 19.81 ft at 6:45PM Dec 02, 2019Observed: 19.82 ft at 7:00PM Dec 02, 2019Observed: 19.81 ft at 7:15PM Dec 02, 2019Observed: 19.82 ft at 7:30PM Dec 02, 2019Observed: 19.8 ft at 7:45PM Dec 02, 2019Observed: 19.82 ft at 8:00PM Dec 02, 2019Observed: 19.82 ft at 8:15PM Dec 02, 2019Observed: 19.82 ft at 8:30PM Dec 02, 2019Observed: 19.82 ft at 8:45PM Dec 02, 2019Observed: 19.81 ft at 9:00PM Dec 02, 2019Observed: 19.83 ft at 9:15PM Dec 02, 2019Observed: 19.82 ft at 9:30PM Dec 02, 2019Observed: 19.81 ft at 9:45PM Dec 02, 2019Observed: 19.81 ft at 10:00PM Dec 02, 2019Observed: 19.8 ft at 10:15PM Dec 02, 2019Observed: 19.81 ft at 10:30PM Dec 02, 2019Observed: 19.81 ft at 10:45PM Dec 02, 2019Observed: 19.79 ft at 11:00PM Dec 02, 2019Observed: 19.79 ft at 11:15PM Dec 02, 2019Observed: 19.79 ft at 11:30PM Dec 02, 2019Observed: 19.79 ft at 11:45PM Dec 02, 2019Observed: 19.78 ft at 12:00AM Dec 03, 2019Observed: 19.78 ft at 12:15AM Dec 03, 2019Observed: 19.78 ft at 12:30AM Dec 03, 2019Observed: 19.78 ft at 12:45AM Dec 03, 2019Observed: 19.79 ft at 1:00AM Dec 03, 2019Observed: 19.78 ft at 1:15AM Dec 03, 2019Observed: 19.78 ft at 1:30AM Dec 03, 2019Observed: 19.78 ft at 1:45AM Dec 03, 2019Observed: 19.78 ft at 1:46AM Dec 03, 2019Observed: 19.78 ft at 2:00AM Dec 03, 2019Observed: 19.78 ft at 2:01AM Dec 03, 2019Observed: 19.78 ft at 2:15AM Dec 03, 2019Observed: 19.78 ft at 2:16AM Dec 03, 2019Observed: 19.77 ft at 2:30AM Dec 03, 2019Observed: 19.77 ft at 2:45AM Dec 03, 2019Observed: 19.77 ft at 3:00AM Dec 03, 2019Observed: 19.77 ft at 3:15AM Dec 03, 2019Observed: 19.79 ft at 3:30AM Dec 03, 2019Observed: 19.79 ft at 3:45AM Dec 03, 2019Observed: 19.79 ft at 4:00AM Dec 03, 2019Observed: 19.81 ft at 4:15AM Dec 03, 2019Observed: 19.79 ft at 4:30AM Dec 03, 2019Observed: 19.8 ft at 4:45AM Dec 03, 2019Observed: 19.79 ft at 5:00AM Dec 03, 2019Observed: 19.79 ft at 5:15AM Dec 03, 2019Observed: 19.79 ft at 5:30AM Dec 03, 2019Observed: 19.78 ft at 5:45AM Dec 03, 2019Observed: 19.77 ft at 6:00AM Dec 03, 2019Observed: 19.77 ft at 6:15AM Dec 03, 2019Observed: 19.77 ft at 6:30AM Dec 03, 2019Observed: 19.77 ft at 6:45AM Dec 03, 2019Observed: 19.77 ft at 7:00AM Dec 03, 2019Observed: 19.78 ft at 7:15AM Dec 03, 2019Observed: 19.78 ft at 7:30AM Dec 03, 2019Observed: 19.77 ft at 7:45AM Dec 03, 2019Observed: 19.78 ft at 8:00AM Dec 03, 2019Observed: 19.78 ft at 8:15AM Dec 03, 2019Observed: 19.77 ft at 8:30AM Dec 03, 2019Observed: 19.77 ft at 8:45AM Dec 03, 2019Observed: 19.78 ft at 9:00AM Dec 03, 2019Observed: 19.79 ft at 9:15AM Dec 03, 2019Observed: 19.79 ft at 9:30AM Dec 03, 2019Observed: 19.81 ft at 9:45AM Dec 03, 2019Observed: 19.81 ft at 9:46AM Dec 03, 2019Observed: 19.82 ft at 10:00AM Dec 03, 2019Observed: 19.82 ft at 10:01AM Dec 03, 2019Observed: 19.82 ft at 10:15AM Dec 03, 2019Observed: 19.82 ft at 10:16AM Dec 03, 2019Observed: 19.83 ft at 10:30AM Dec 03, 2019Observed: 19.84 ft at 10:45AM Dec 03, 2019Observed: 19.83 ft at 11:00AM Dec 03, 2019Observed: 19.85 ft at 11:15AM Dec 03, 2019Observed: 19.83 ft at 11:30AM Dec 03, 2019Observed: 19.85 ft at 11:45AM Dec 03, 2019Observed: 19.84 ft at 12:00PM Dec 03, 2019Observed: 19.84 ft at 12:15PM Dec 03, 2019Observed: 19.84 ft at 12:30PM Dec 03, 2019Observed: 19.86 ft at 12:45PM Dec 03, 2019Observed: 19.87 ft at 1:00PM Dec 03, 2019Observed: 19.83 ft at 1:15PM Dec 03, 2019Observed: 19.84 ft at 1:30PM Dec 03, 2019Observed: 19.85 ft at 1:45PM Dec 03, 2019Observed: 19.89 ft at 2:00PM Dec 03, 2019Observed: 19.89 ft at 2:15PM Dec 03, 2019Observed: 19.88 ft at 2:30PM Dec 03, 2019Observed: 19.87 ft at 2:45PM Dec 03, 2019Observed: 19.88 ft at 3:00PM Dec 03, 2019Observed: 19.89 ft at 3:15PM Dec 03, 2019Observed: 19.89 ft at 3:30PM Dec 03, 2019Observed: 19.89 ft at 3:45PM Dec 03, 2019Highest Observation: 19.9 ft at 4:00PM Dec 03, 2019Highest Observation: 19.9 ft at 4:15PM Dec 03, 2019Observed: 19.88 ft at 4:30PM Dec 03, 2019Observed: 19.89 ft at 4:45PM Dec 03, 2019Observed: 19.89 ft at 5:00PM Dec 03, 2019Observed: 19.89 ft at 5:15PM Dec 03, 2019Observed: 19.88 ft at 5:30PM Dec 03, 2019Observed: 19.88 ft at 5:45PM Dec 03, 2019Observed: 19.88 ft at 5:47PM Dec 03, 2019Observed: 19.88 ft at 6:00PM Dec 03, 2019Observed: 19.88 ft at 6:02PM Dec 03, 2019Observed: 19.87 ft at 6:15PM Dec 03, 2019Observed: 19.87 ft at 6:17PM Dec 03, 2019Observed: 19.86 ft at 6:30PM Dec 03, 2019Observed: 19.87 ft at 6:45PM Dec 03, 2019Observed: 19.85 ft at 7:00PM Dec 03, 2019Observed: 19.86 ft at 7:15PM Dec 03, 2019Observed: 19.85 ft at 7:30PM Dec 03, 2019Observed: 19.84 ft at 7:45PM Dec 03, 2019Observed: 19.83 ft at 8:00PM Dec 03, 2019Observed: 19.84 ft at 8:15PM Dec 03, 2019Observed: 19.83 ft at 8:30PM Dec 03, 2019Observed: 19.83 ft at 8:45PM Dec 03, 2019Observed: 19.83 ft at 9:00PM Dec 03, 2019Observed: 19.81 ft at 9:15PM Dec 03, 2019Observed: 19.81 ft at 9:30PM Dec 03, 2019Observed: 19.8 ft at 9:45PM Dec 03, 2019Observed: 19.79 ft at 10:00PM Dec 03, 2019Observed: 19.79 ft at 10:15PM Dec 03, 2019Observed: 19.8 ft at 10:30PM Dec 03, 2019Observed: 19.79 ft at 10:45PM Dec 03, 2019Observed: 19.78 ft at 11:00PM Dec 03, 2019Observed: 19.78 ft at 11:15PM Dec 03, 2019Observed: 19.77 ft at 11:30PM Dec 03, 2019Observed: 19.75 ft at 11:45PM Dec 03, 2019Observed: 19.75 ft at 12:00AM Dec 04, 2019Observed: 19.75 ft at 12:15AM Dec 04, 2019Observed: 19.73 ft at 12:30AM Dec 04, 2019Observed: 19.72 ft at 12:45AM Dec 04, 2019Observed: 19.73 ft at 1:00AM Dec 04, 2019Observed: 19.73 ft at 1:15AM Dec 04, 2019Observed: 19.71 ft at 1:30AM Dec 04, 2019Observed: 19.71 ft at 1:45AM Dec 04, 2019Observed: 19.71 ft at 1:46AM Dec 04, 2019Observed: 19.69 ft at 2:00AM Dec 04, 2019Observed: 19.69 ft at 2:01AM Dec 04, 2019Observed: 19.7 ft at 2:15AM Dec 04, 2019Observed: 19.7 ft at 2:16AM Dec 04, 2019Observed: 19.68 ft at 2:30AM Dec 04, 2019Observed: 19.67 ft at 2:45AM Dec 04, 2019Observed: 19.66 ft at 3:00AM Dec 04, 2019Observed: 19.66 ft at 3:15AM Dec 04, 2019Observed: 19.65 ft at 3:30AM Dec 04, 2019Observed: 19.64 ft at 3:45AM Dec 04, 2019Observed: 19.64 ft at 4:00AM Dec 04, 2019Observed: 19.63 ft at 4:15AM Dec 04, 2019Observed: 19.63 ft at 4:30AM Dec 04, 2019Observed: 19.62 ft at 4:45AM Dec 04, 2019Observed: 19.62 ft at 5:00AM Dec 04, 2019Observed: 19.6 ft at 5:15AM Dec 04, 2019Observed: 19.6 ft at 5:30AM Dec 04, 2019Observed: 19.6 ft at 5:45AM Dec 04, 2019Observed: 19.58 ft at 6:00AM Dec 04, 2019Observed: 19.58 ft at 6:15AM Dec 04, 2019Observed: 19.58 ft at 6:30AM Dec 04, 2019Observed: 19.55 ft at 6:45AM Dec 04, 2019Observed: 19.54 ft at 7:00AM Dec 04, 2019Observed: 19.53 ft at 7:15AM Dec 04, 2019Observed: 19.52 ft at 7:30AM Dec 04, 2019Observed: 19.5 ft at 7:45AM Dec 04, 2019Observed: 19.48 ft at 8:00AM Dec 04, 2019Observed: 19.47 ft at 8:15AM Dec 04, 2019Observed: 19.47 ft at 8:30AM Dec 04, 2019Observed: 19.47 ft at 8:45AM Dec 04, 2019Observed: 19.48 ft at 9:00AM Dec 04, 2019Observed: 19.47 ft at 9:15AM Dec 04, 2019Observed: 19.47 ft at 9:30AM Dec 04, 2019Observed: 19.47 ft at 9:45AM Dec 04, 2019Observed: 19.47 ft at 9:46AM Dec 04, 2019Observed: 19.45 ft at 10:00AM Dec 04, 2019Observed: 19.45 ft at 10:01AM Dec 04, 2019Observed: 19.45 ft at 10:15AM Dec 04, 2019Observed: 19.45 ft at 10:16AM Dec 04, 2019Observed: 19.44 ft at 10:30AM Dec 04, 2019Observed: 19.42 ft at 10:45AM Dec 04, 2019Observed: 19.43 ft at 11:00AM Dec 04, 2019Observed: 19.43 ft at 11:15AM Dec 04, 2019Observed: 19.43 ft at 11:30AM Dec 04, 2019Observed: 19.44 ft at 11:45AM Dec 04, 2019Observed: 19.42 ft at 12:00PM Dec 04, 2019Observed: 19.43 ft at 12:15PM Dec 04, 2019Observed: 19.42 ft at 12:30PM Dec 04, 2019Observed: 19.42 ft at 12:45PM Dec 04, 2019Observed: 19.41 ft at 1:00PM Dec 04, 2019Observed: 19.4 ft at 1:15PM Dec 04, 2019Observed: 19.4 ft at 1:30PM Dec 04, 2019Observed: 19.39 ft at 1:45PM Dec 04, 2019Observed: 19.38 ft at 2:00PM Dec 04, 2019Observed: 19.37 ft at 2:15PM Dec 04, 2019Observed: 19.35 ft at 2:30PM Dec 04, 2019Observed: 19.34 ft at 2:45PM Dec 04, 2019Observed: 19.34 ft at 3:00PM Dec 04, 2019Observed: 19.33 ft at 3:15PM Dec 04, 2019Observed: 19.32 ft at 3:30PM Dec 04, 2019Observed: 19.31 ft at 3:45PM Dec 04, 2019Observed: 19.31 ft at 4:00PM Dec 04, 2019Observed: 19.3 ft at 4:15PM Dec 04, 2019Observed: 19.27 ft at 4:30PM Dec 04, 2019Observed: 19.26 ft at 4:45PM Dec 04, 2019Observed: 19.26 ft at 5:00PM Dec 04, 2019Observed: 19.25 ft at 5:15PM Dec 04, 2019Observed: 19.25 ft at 5:30PM Dec 04, 2019Observed: 19.24 ft at 5:45PM Dec 04, 2019Observed: 19.24 ft at 5:46PM Dec 04, 2019Observed: 19.25 ft at 6:00PM Dec 04, 2019Observed: 19.25 ft at 6:01PM Dec 04, 2019Observed: 19.23 ft at 6:15PM Dec 04, 2019Observed: 19.23 ft at 6:16PM Dec 04, 2019Observed: 19.22 ft at 6:30PM Dec 04, 2019Observed: 19.21 ft at 6:45PM Dec 04, 2019Observed: 19.21 ft at 7:00PM Dec 04, 2019Observed: 19.2 ft at 7:15PM Dec 04, 2019Observed: 19.21 ft at 7:30PM Dec 04, 2019Observed: 19.21 ft at 7:45PM Dec 04, 2019Observed: 19.2 ft at 8:00PM Dec 04, 2019Observed: 19.18 ft at 8:15PM Dec 04, 2019Observed: 19.19 ft at 8:30PM Dec 04, 2019Observed: 19.18 ft at 8:45PM Dec 04, 2019Observed: 19.17 ft at 9:00PM Dec 04, 2019Observed: 19.17 ft at 9:15PM Dec 04, 2019Observed: 19.17 ft at 9:30PM Dec 04, 2019Observed: 19.17 ft at 9:45PM Dec 04, 2019Observed: 19.17 ft at 10:00PM Dec 04, 2019Observed: 19.17 ft at 10:15PM Dec 04, 2019Observed: 19.17 ft at 10:30PM Dec 04, 2019Observed: 19.17 ft at 10:45PM Dec 04, 2019Observed: 19.17 ft at 11:00PM Dec 04, 2019Observed: 19.17 ft at 11:15PM Dec 04, 2019Observed: 19.17 ft at 11:30PM Dec 04, 2019Observed: 19.17 ft at 11:45PM Dec 04, 2019Observed: 19.17 ft at 12:00AM Dec 05, 2019Observed: 19.17 ft at 12:15AM Dec 05, 2019Observed: 19.17 ft at 12:30AM Dec 05, 2019Observed: 19.17 ft at 12:45AM Dec 05, 2019Observed: 19.17 ft at 1:00AM Dec 05, 2019Observed: 19.17 ft at 1:15AM Dec 05, 2019Observed: 19.17 ft at 1:30AM Dec 05, 2019Observed: 19.17 ft at 1:45AM Dec 05, 2019Observed: 19.17 ft at 2:00AM Dec 05, 2019Observed: 19.17 ft at 2:01AM Dec 05, 2019Observed: 19.17 ft at 2:15AM Dec 05, 2019Observed: 19.17 ft at 2:16AM Dec 05, 2019Observed: 19.17 ft at 2:30AM Dec 05, 2019Observed: 19.17 ft at 2:31AM Dec 05, 2019Observed: 19.17 ft at 2:45AM Dec 05, 2019Observed: 19.17 ft at 3:00AM Dec 05, 2019Observed: 19.17 ft at 3:15AM Dec 05, 2019Observed: 19.17 ft at 3:30AM Dec 05, 2019Observed: 19.17 ft at 3:45AM Dec 05, 2019Observed: 19.17 ft at 4:00AM Dec 05, 2019Observed: 19.17 ft at 4:15AM Dec 05, 2019Observed: 19.17 ft at 4:30AM Dec 05, 2019Observed: 19.17 ft at 4:45AM Dec 05, 2019Observed: 19.17 ft at 5:00AM Dec 05, 2019Observed: 19.17 ft at 5:15AM Dec 05, 2019Observed: 19.17 ft at 5:30AM Dec 05, 2019Observed: 19.17 ft at 5:45AM Dec 05, 2019Observed: 19.17 ft at 6:00AM Dec 05, 2019Observed: 19.17 ft at 6:15AM Dec 05, 2019Observed: 19.17 ft at 6:30AM Dec 05, 2019Observed: 19.17 ft at 6:45AM Dec 05, 2019Observed: 19.17 ft at 7:00AM Dec 05, 2019Observed: 19.17 ft at 7:15AM Dec 05, 2019Observed: 19.17 ft at 7:30AM Dec 05, 2019Observed: 19.17 ft at 7:45AM Dec 05, 2019Observed: 19.17 ft at 8:00AM Dec 05, 2019Observed: 19.17 ft at 8:15AM Dec 05, 2019Observed: 19.17 ft at 8:30AM Dec 05, 2019Observed: 19.17 ft at 8:45AM Dec 05, 2019Observed: 19.17 ft at 9:00AM Dec 05, 2019Observed: 19.17 ft at 9:15AM Dec 05, 2019Observed: 19.17 ft at 9:30AM Dec 05, 2019Observed: 19.17 ft at 9:45AM Dec 05, 2019Observed: 19.17 ft at 10:00AM Dec 05, 2019Observed: 19.17 ft at 10:01AM Dec 05, 2019Observed: 19.17 ft at 10:15AM Dec 05, 2019Observed: 19.17 ft at 10:16AM Dec 05, 2019Observed: 19.18 ft at 10:30AM Dec 05, 2019Observed: 19.18 ft at 10:31AM Dec 05, 2019Observed: 19.18 ft at 10:45AM Dec 05, 2019Observed: 19.16 ft at 11:15AM Dec 05, 2019Observed: 18.86 ft at 11:30AM Dec 05, 2019Observed: 18.83 ft at 11:45AM Dec 05, 2019Observed: 18.83 ft at 12:00PM Dec 05, 2019Observed: 18.83 ft at 12:15PM Dec 05, 2019Observed: 18.83 ft at 12:30PM Dec 05, 2019Observed: 18.82 ft at 12:45PM Dec 05, 2019Observed: 18.82 ft at 1:00PM Dec 05, 2019Observed: 18.81 ft at 1:15PM Dec 05, 2019Observed: 18.81 ft at 1:30PM Dec 05, 2019Observed: 18.81 ft at 1:45PM Dec 05, 2019Observed: 18.81 ft at 2:00PM Dec 05, 2019Observed: 18.82 ft at 2:15PM Dec 05, 2019Observed: 18.81 ft at 2:30PM Dec 05, 2019Observed: 18.81 ft at 2:45PM Dec 05, 2019Observed: 18.8 ft at 3:00PM Dec 05, 2019Observed: 18.82 ft at 3:15PM Dec 05, 2019Observed: 18.82 ft at 3:30PM Dec 05, 2019Observed: 18.81 ft at 3:45PM Dec 05, 2019Observed: 18.81 ft at 4:00PM Dec 05, 2019Observed: 18.81 ft at 4:15PM Dec 05, 2019Observed: 18.81 ft at 4:30PM Dec 05, 2019Observed: 18.81 ft at 4:45PM Dec 05, 2019Observed: 18.8 ft at 5:00PM Dec 05, 2019Observed: 18.81 ft at 5:15PM Dec 05, 2019Observed: 18.81 ft at 5:30PM Dec 05, 2019Observed: 18.8 ft at 5:45PM Dec 05, 2019Observed: 18.81 ft at 6:00PM Dec 05, 2019Observed: 18.82 ft at 6:15PM Dec 05, 2019Observed: 18.81 ft at 6:30PM Dec 05, 2019Observed: 18.8 ft at 6:45PM Dec 05, 2019Observed: 18.81 ft at 7:00PM Dec 05, 2019Observed: 18.8 ft at 7:15PM Dec 05, 2019Observed: 18.81 ft at 7:30PM Dec 05, 2019Observed: 18.79 ft at 7:45PM Dec 05, 2019Observed: 18.79 ft at 8:00PM Dec 05, 2019Observed: 18.79 ft at 8:15PM Dec 05, 2019Observed: 18.79 ft at 8:30PM Dec 05, 2019Observed: 18.77 ft at 8:45PM Dec 05, 2019Observed: 18.79 ft at 9:00PM Dec 05, 2019Observed: 18.79 ft at 9:15PM Dec 05, 2019Observed: 18.76 ft at 9:30PM Dec 05, 2019Observed: 18.79 ft at 9:45PM Dec 05, 2019Observed: 18.77 ft at 10:00PM Dec 05, 2019Observed: 18.79 ft at 10:15PM Dec 05, 2019Observed: 18.78 ft at 10:30PM Dec 05, 2019Observed: 18.78 ft at 10:45PM Dec 05, 2019Observed: 18.78 ft at 11:00PM Dec 05, 2019Observed: 18.76 ft at 11:15PM Dec 05, 2019Observed: 18.76 ft at 11:30PM Dec 05, 2019Observed: 18.75 ft at 11:45PM Dec 05, 2019Observed: 18.76 ft at 12:00AM Dec 06, 2019Observed: 18.75 ft at 12:15AM Dec 06, 2019Observed: 18.75 ft at 12:30AM Dec 06, 2019Observed: 18.75 ft at 12:45AM Dec 06, 2019Observed: 18.74 ft at 1:00AM Dec 06, 2019Observed: 18.72 ft at 1:15AM Dec 06, 2019Observed: 18.72 ft at 1:30AM Dec 06, 2019Observed: 18.71 ft at 1:45AM Dec 06, 2019Observed: 18.7 ft at 2:00AM Dec 06, 2019Observed: 18.71 ft at 2:15AM Dec 06, 2019Observed: 18.7 ft at 2:30AM Dec 06, 2019Observed: 18.68 ft at 2:45AM Dec 06, 2019Observed: 18.68 ft at 2:46AM Dec 06, 2019Observed: 18.7 ft at 3:00AM Dec 06, 2019Observed: 18.7 ft at 3:01AM Dec 06, 2019Observed: 18.68 ft at 3:15AM Dec 06, 2019Observed: 18.68 ft at 3:16AM Dec 06, 2019Observed: 18.69 ft at 3:30AM Dec 06, 2019Observed: 18.67 ft at 3:45AM Dec 06, 2019Observed: 18.68 ft at 4:00AM Dec 06, 2019Observed: 18.66 ft at 4:15AM Dec 06, 2019Observed: 18.66 ft at 4:30AM Dec 06, 2019Observed: 18.65 ft at 4:45AM Dec 06, 2019Observed: 18.66 ft at 5:00AM Dec 06, 2019Observed: 18.66 ft at 5:15AM Dec 06, 2019Observed: 18.66 ft at 5:30AM Dec 06, 2019Observed: 18.65 ft at 5:45AM Dec 06, 2019Observed: 18.64 ft at 6:00AM Dec 06, 2019Observed: 18.63 ft at 6:15AM Dec 06, 2019Observed: 18.63 ft at 6:30AM Dec 06, 2019Observed: 18.62 ft at 6:45AM Dec 06, 2019Observed: 18.62 ft at 7:00AM Dec 06, 2019Observed: 18.61 ft at 7:15AM Dec 06, 2019Observed: 18.61 ft at 7:30AM Dec 06, 2019Observed: 18.63 ft at 7:45AM Dec 06, 2019Observed: 18.64 ft at 8:00AM Dec 06, 2019Observed: 18.63 ft at 8:15AM Dec 06, 2019Observed: 18.62 ft at 8:30AM Dec 06, 2019Observed: 18.61 ft at 8:45AM Dec 06, 2019Observed: 18.6 ft at 9:00AM Dec 06, 2019Observed: 18.6 ft at 9:15AM Dec 06, 2019Observed: 18.59 ft at 9:30AM Dec 06, 2019Observed: 18.59 ft at 9:45AM Dec 06, 2019Observed: 18.59 ft at 10:00AM Dec 06, 2019Observed: 18.59 ft at 10:15AM Dec 06, 2019Observed: 18.59 ft at 10:30AM Dec 06, 2019Observed: 18.58 ft at 10:45AM Dec 06, 2019Observed: 18.57 ft at 11:00AM Dec 06, 2019Observed: 18.57 ft at 11:15AM Dec 06, 2019Observed: 18.56 ft at 11:30AM Dec 06, 2019Observed: 18.56 ft at 11:45AM Dec 06, 2019Observed: 18.56 ft at 12:00PM Dec 06, 2019Observed: 18.56 ft at 12:15PM Dec 06, 2019Observed: 18.53 ft at 12:30PM Dec 06, 2019Observed: 18.53 ft at 12:45PM Dec 06, 2019Observed: 18.52 ft at 1:00PM Dec 06, 2019Observed: 18.52 ft at 1:15PM Dec 06, 2019Observed: 18.51 ft at 1:30PM Dec 06, 2019Observed: 18.52 ft at 1:45PM Dec 06, 2019Observed: 18.51 ft at 2:00PM Dec 06, 2019Observed: 18.5 ft at 2:15PM Dec 06, 2019Observed: 18.49 ft at 2:30PM Dec 06, 2019Observed: 18.5 ft at 2:45PM Dec 06, 2019Observed: 18.49 ft at 3:00PM Dec 06, 2019Observed: 18.48 ft at 3:15PM Dec 06, 2019Observed: 18.47 ft at 3:30PM Dec 06, 2019Observed: 18.47 ft at 3:45PM Dec 06, 2019Observed: 18.46 ft at 4:00PM Dec 06, 2019Observed: 18.46 ft at 4:15PM Dec 06, 2019Observed: 18.45 ft at 4:30PM Dec 06, 2019Observed: 18.45 ft at 4:45PM Dec 06, 2019Observed: 18.44 ft at 5:00PM Dec 06, 2019Observed: 18.44 ft at 5:15PM Dec 06, 2019Observed: 18.43 ft at 5:30PM Dec 06, 2019Observed: 18.42 ft at 5:45PM Dec 06, 2019Observed: 18.41 ft at 6:00PM Dec 06, 2019Observed: 18.4 ft at 6:15PM Dec 06, 2019Observed: 18.4 ft at 6:30PM Dec 06, 2019Observed: 18.38 ft at 6:45PM Dec 06, 2019Observed: 18.38 ft at 6:47PM Dec 06, 2019Observed: 18.37 ft at 7:00PM Dec 06, 2019Observed: 18.37 ft at 7:02PM Dec 06, 2019Observed: 18.37 ft at 7:15PM Dec 06, 2019Observed: 18.37 ft at 7:17PM Dec 06, 2019Observed: 18.36 ft at 7:30PM Dec 06, 2019Observed: 18.35 ft at 7:45PM Dec 06, 2019Observed: 18.36 ft at 8:00PM Dec 06, 2019Observed: 18.35 ft at 8:15PM Dec 06, 2019Observed: 18.36 ft at 8:30PM Dec 06, 2019Observed: 18.36 ft at 8:45PM Dec 06, 2019Observed: 18.37 ft at 9:00PM Dec 06, 2019Observed: 18.34 ft at 9:15PM Dec 06, 2019Observed: 18.33 ft at 9:30PM Dec 06, 2019Observed: 18.33 ft at 9:45PM Dec 06, 2019Observed: 18.33 ft at 10:00PM Dec 06, 2019Observed: 18.33 ft at 10:15PM Dec 06, 2019Observed: 18.32 ft at 10:30PM Dec 06, 2019Observed: 18.32 ft at 10:45PM Dec 06, 2019Observed: 18.31 ft at 11:00PM Dec 06, 2019Observed: 18.31 ft at 11:15PM Dec 06, 2019Observed: 18.31 ft at 11:30PM Dec 06, 2019Observed: 18.31 ft at 11:45PM Dec 06, 2019Observed: 18.31 ft at 12:00AM Dec 07, 2019Observed: 18.3 ft at 12:15AM Dec 07, 2019Observed: 18.31 ft at 12:30AM Dec 07, 2019Observed: 18.3 ft at 12:45AM Dec 07, 2019Observed: 18.29 ft at 1:00AM Dec 07, 2019Observed: 18.28 ft at 1:15AM Dec 07, 2019Observed: 18.26 ft at 1:30AM Dec 07, 2019Observed: 18.26 ft at 1:45AM Dec 07, 2019Observed: 18.25 ft at 2:00AM Dec 07, 2019Observed: 18.24 ft at 2:15AM Dec 07, 2019Observed: 18.24 ft at 2:30AM Dec 07, 2019Observed: 18.24 ft at 2:45AM Dec 07, 2019Observed: 18.24 ft at 2:46AM Dec 07, 2019Observed: 18.23 ft at 3:00AM Dec 07, 2019Observed: 18.23 ft at 3:01AM Dec 07, 2019Observed: 18.23 ft at 3:15AM Dec 07, 2019Observed: 18.23 ft at 3:16AM Dec 07, 2019Observed: 18.21 ft at 3:30AM Dec 07, 2019Observed: 18.21 ft at 3:45AM Dec 07, 2019Observed: 18.19 ft at 4:00AM Dec 07, 2019Observed: 18.19 ft at 4:15AM Dec 07, 2019Observed: 18.17 ft at 4:30AM Dec 07, 2019Observed: 18.18 ft at 4:45AM Dec 07, 2019Observed: 18.18 ft at 5:00AM Dec 07, 2019Observed: 18.15 ft at 5:15AM Dec 07, 2019Observed: 18.16 ft at 5:30AM Dec 07, 2019Observed: 18.15 ft at 5:45AM Dec 07, 2019Observed: 18.14 ft at 6:00AM Dec 07, 2019Observed: 18.13 ft at 6:15AM Dec 07, 2019Observed: 18.13 ft at 6:30AM Dec 07, 2019Observed: 18.12 ft at 6:45AM Dec 07, 2019Observed: 18.11 ft at 7:00AM Dec 07, 2019Observed: 18.1 ft at 7:15AM Dec 07, 2019Observed: 18.11 ft at 7:30AM Dec 07, 2019Observed: 18.09 ft at 7:45AM Dec 07, 2019Observed: 18.08 ft at 8:00AM Dec 07, 2019Observed: 18.09 ft at 8:15AM Dec 07, 2019Observed: 18.07 ft at 8:30AM Dec 07, 2019Observed: 18.08 ft at 8:45AM Dec 07, 2019Observed: 18.08 ft at 9:00AM Dec 07, 2019Observed: 18.07 ft at 9:15AM Dec 07, 2019Observed: 18.05 ft at 9:30AM Dec 07, 2019Observed: 18.05 ft at 9:45AM Dec 07, 2019Observed: 18.05 ft at 10:00AM Dec 07, 2019Observed: 18.04 ft at 10:15AM Dec 07, 2019Observed: 18.03 ft at 10:30AM Dec 07, 2019Observed: 18.02 ft at 10:45AM Dec 07, 2019Observed: 18.02 ft at 10:46AM Dec 07, 2019Observed: 18.02 ft at 11:00AM Dec 07, 2019Observed: 18.02 ft at 11:01AM Dec 07, 2019Observed: 18.02 ft at 11:15AM Dec 07, 2019Observed: 18.02 ft at 11:16AM Dec 07, 2019Observed: 18.02 ft at 11:30AM Dec 07, 2019Observed: 18.03 ft at 11:45AM Dec 07, 2019Observed: 18.03 ft at 12:00PM Dec 07, 2019Observed: 18.03 ft at 12:15PM Dec 07, 2019Observed: 18.03 ft at 12:30PM Dec 07, 2019Observed: 18.02 ft at 12:45PM Dec 07, 2019Observed: 18.04 ft at 1:00PM Dec 07, 2019Observed: 18.03 ft at 1:15PM Dec 07, 2019Observed: 18.04 ft at 1:30PM Dec 07, 2019Observed: 18.03 ft at 1:45PM Dec 07, 2019Observed: 18.03 ft at 2:00PM Dec 07, 2019Observed: 18.03 ft at 2:15PM Dec 07, 2019Observed: 18.02 ft at 2:30PM Dec 07, 2019Observed: 18.01 ft at 2:45PM Dec 07, 2019Observed: 18.02 ft at 3:00PM Dec 07, 2019Observed: 18.02 ft at 3:15PM Dec 07, 2019Observed: 18.01 ft at 3:30PM Dec 07, 2019Observed: 18.01 ft at 3:45PM Dec 07, 2019Observed: 18.01 ft at 4:00PM Dec 07, 2019Observed: 18 ft at 4:15PM Dec 07, 2019Observed: 17.99 ft at 4:30PM Dec 07, 2019Observed: 17.99 ft at 4:45PM Dec 07, 2019Observed: 17.98 ft at 5:00PM Dec 07, 2019Observed: 17.97 ft at 5:15PM Dec 07, 2019Observed: 17.97 ft at 5:30PM Dec 07, 2019Observed: 17.97 ft at 5:45PM Dec 07, 2019Observed: 17.97 ft at 6:00PM Dec 07, 2019Observed: 17.97 ft at 6:15PM Dec 07, 2019Observed: 17.96 ft at 6:30PM Dec 07, 2019Observed: 17.96 ft at 6:45PM Dec 07, 2019Observed: 17.96 ft at 6:46PM Dec 07, 2019Observed: 17.98 ft at 7:00PM Dec 07, 2019Observed: 17.98 ft at 7:01PM Dec 07, 2019Observed: 17.98 ft at 7:15PM Dec 07, 2019Observed: 17.98 ft at 7:16PM Dec 07, 2019Observed: 17.96 ft at 7:30PM Dec 07, 2019Observed: 17.95 ft at 7:45PM Dec 07, 2019Observed: 17.94 ft at 8:00PM Dec 07, 2019Observed: 17.94 ft at 8:15PM Dec 07, 2019Observed: 17.94 ft at 8:30PM Dec 07, 2019Observed: 17.94 ft at 8:45PM Dec 07, 2019Observed: 17.93 ft at 9:00PM Dec 07, 2019Observed: 17.92 ft at 9:15PM Dec 07, 2019Observed: 17.93 ft at 9:30PM Dec 07, 2019Observed: 17.92 ft at 9:45PM Dec 07, 2019Observed: 17.92 ft at 10:00PM Dec 07, 2019Observed: 17.95 ft at 10:15PM Dec 07, 2019Observed: 17.91 ft at 10:30PM Dec 07, 2019Observed: 17.91 ft at 10:45PM Dec 07, 2019Observed: 17.9 ft at 11:00PM Dec 07, 2019Observed: 17.9 ft at 11:15PM Dec 07, 2019Observed: 17.92 ft at 11:30PM Dec 07, 2019Observed: 17.9 ft at 11:45PM Dec 07, 2019Observed: 17.91 ft at 12:00AM Dec 08, 2019Observed: 17.9 ft at 12:15AM Dec 08, 2019Observed: 17.88 ft at 12:30AM Dec 08, 2019Observed: 17.87 ft at 12:45AM Dec 08, 2019Observed: 17.86 ft at 1:00AM Dec 08, 2019Observed: 17.85 ft at 1:15AM Dec 08, 2019Observed: 17.85 ft at 1:30AM Dec 08, 2019Observed: 17.84 ft at 1:45AM Dec 08, 2019Observed: 17.82 ft at 2:00AM Dec 08, 2019Observed: 17.81 ft at 2:15AM Dec 08, 2019Observed: 17.8 ft at 2:30AM Dec 08, 2019Observed: 17.79 ft at 2:45AM Dec 08, 2019Observed: 17.79 ft at 3:00AM Dec 08, 2019Observed: 17.79 ft at 3:01AM Dec 08, 2019Observed: 17.78 ft at 3:15AM Dec 08, 2019Observed: 17.78 ft at 3:16AM Dec 08, 2019Observed: 17.77 ft at 3:30AM Dec 08, 2019Observed: 17.77 ft at 3:31AM Dec 08, 2019Observed: 17.77 ft at 3:45AM Dec 08, 2019Observed: 17.77 ft at 4:00AM Dec 08, 2019Observed: 17.77 ft at 4:15AM Dec 08, 2019Observed: 17.76 ft at 4:30AM Dec 08, 2019Observed: 17.75 ft at 4:45AM Dec 08, 2019Observed: 17.74 ft at 5:00AM Dec 08, 2019Observed: 17.74 ft at 5:15AM Dec 08, 2019Observed: 17.73 ft at 5:30AM Dec 08, 2019Observed: 17.72 ft at 5:45AM Dec 08, 2019Observed: 17.7 ft at 6:00AM Dec 08, 2019Observed: 17.71 ft at 6:15AM Dec 08, 2019Observed: 17.69 ft at 6:30AM Dec 08, 2019Observed: 17.68 ft at 6:45AM Dec 08, 2019Observed: 17.67 ft at 7:00AM Dec 08, 2019Observed: 17.65 ft at 7:15AM Dec 08, 2019Observed: 17.65 ft at 7:30AM Dec 08, 2019Observed: 17.65 ft at 7:45AM Dec 08, 2019Observed: 17.65 ft at 8:00AM Dec 08, 2019Observed: 17.63 ft at 8:15AM Dec 08, 2019Observed: 17.63 ft at 8:30AM Dec 08, 2019Observed: 17.61 ft at 8:45AM Dec 08, 2019Observed: 17.62 ft at 9:00AM Dec 08, 2019Observed: 17.61 ft at 9:15AM Dec 08, 2019Observed: 17.6 ft at 9:30AM Dec 08, 2019Observed: 17.59 ft at 9:45AM Dec 08, 2019Observed: 17.59 ft at 10:00AM Dec 08, 2019Observed: 17.59 ft at 10:15AM Dec 08, 2019Observed: 17.59 ft at 10:30AM Dec 08, 2019Observed: 17.59 ft at 10:45AM Dec 08, 2019Observed: 17.59 ft at 11:00AM Dec 08, 2019Observed: 17.59 ft at 11:01AM Dec 08, 2019Observed: 17.59 ft at 11:15AM Dec 08, 2019Observed: 17.59 ft at 11:16AM Dec 08, 2019Observed: 17.6 ft at 11:30AM Dec 08, 2019Observed: 17.6 ft at 11:31AM Dec 08, 2019Observed: 17.6 ft at 11:45AM Dec 08, 2019Observed: 17.59 ft at 12:00PM Dec 08, 2019Observed: 17.59 ft at 12:15PM Dec 08, 2019Observed: 17.58 ft at 12:30PM Dec 08, 2019Observed: 17.57 ft at 12:45PM Dec 08, 2019Observed: 17.57 ft at 1:00PM Dec 08, 2019Observed: 17.58 ft at 1:15PM Dec 08, 2019Observed: 17.59 ft at 1:30PM Dec 08, 2019Observed: 17.58 ft at 1:45PM Dec 08, 2019Observed: 17.56 ft at 2:00PM Dec 08, 2019Observed: 17.56 ft at 2:15PM Dec 08, 2019Observed: 17.56 ft at 2:30PM Dec 08, 2019Observed: 17.55 ft at 2:45PM Dec 08, 2019Observed: 17.55 ft at 3:00PM Dec 08, 2019Observed: 17.55 ft at 3:15PM Dec 08, 2019Observed: 17.55 ft at 3:30PM Dec 08, 2019Observed: 17.54 ft at 3:45PM Dec 08, 2019Observed: 17.56 ft at 4:00PM Dec 08, 2019Observed: 17.56 ft at 4:15PM Dec 08, 2019Observed: 17.55 ft at 4:30PM Dec 08, 2019Observed: 17.54 ft at 4:45PM Dec 08, 2019Observed: 17.54 ft at 5:00PM Dec 08, 2019Observed: 17.54 ft at 5:15PM Dec 08, 2019Observed: 17.54 ft at 5:30PM Dec 08, 2019Observed: 17.55 ft at 5:45PM Dec 08, 2019Observed: 17.54 ft at 6:00PM Dec 08, 2019Observed: 17.53 ft at 6:15PM Dec 08, 2019Observed: 17.54 ft at 6:30PM Dec 08, 2019Observed: 17.53 ft at 6:45PM Dec 08, 2019Observed: 17.53 ft at 7:00PM Dec 08, 2019Observed: 17.53 ft at 7:01PM Dec 08, 2019Observed: 17.53 ft at 7:15PM Dec 08, 2019Observed: 17.53 ft at 7:16PM Dec 08, 2019Observed: 17.54 ft at 7:30PM Dec 08, 2019Observed: 17.54 ft at 7:31PM Dec 08, 2019Observed: 17.54 ft at 7:45PM Dec 08, 2019Observed: 17.53 ft at 8:00PM Dec 08, 2019Observed: 17.53 ft at 8:15PM Dec 08, 2019Observed: 17.53 ft at 8:30PM Dec 08, 2019Observed: 17.52 ft at 8:45PM Dec 08, 2019Observed: 17.52 ft at 9:00PM Dec 08, 2019Observed: 17.51 ft at 9:15PM Dec 08, 2019Observed: 17.5 ft at 9:30PM Dec 08, 2019Observed: 17.51 ft at 9:45PM Dec 08, 2019Observed: 17.51 ft at 10:00PM Dec 08, 2019Observed: 17.52 ft at 10:15PM Dec 08, 2019Observed: 17.51 ft at 10:30PM Dec 08, 2019Observed: 17.49 ft at 10:45PM Dec 08, 2019Observed: 17.5 ft at 11:00PM Dec 08, 2019Observed: 17.49 ft at 11:15PM Dec 08, 2019Observed: 17.48 ft at 11:30PM Dec 08, 2019Observed: 17.49 ft at 11:45PM Dec 08, 2019Observed: 17.46 ft at 12:00AM Dec 09, 2019Observed: 17.44 ft at 12:15AM Dec 09, 2019Observed: 17.46 ft at 12:30AM Dec 09, 2019Observed: 17.45 ft at 12:45AM Dec 09, 2019Observed: 17.45 ft at 1:00AM Dec 09, 2019Observed: 17.43 ft at 1:15AM Dec 09, 2019Observed: 17.44 ft at 1:30AM Dec 09, 2019Observed: 17.43 ft at 1:45AM Dec 09, 2019Observed: 17.43 ft at 2:00AM Dec 09, 2019Observed: 17.41 ft at 2:15AM Dec 09, 2019Observed: 17.38 ft at 2:30AM Dec 09, 2019Observed: 17.38 ft at 2:45AM Dec 09, 2019Observed: 17.39 ft at 3:00AM Dec 09, 2019Observed: 17.39 ft at 3:02AM Dec 09, 2019Observed: 17.37 ft at 3:15AM Dec 09, 2019Observed: 17.37 ft at 3:17AM Dec 09, 2019Observed: 17.34 ft at 3:30AM Dec 09, 2019Observed: 17.34 ft at 3:32AM Dec 09, 2019Observed: 17.41 ft at 3:45AM Dec 09, 2019Observed: 17.37 ft at 4:00AM Dec 09, 2019Observed: 17.42 ft at 4:15AM Dec 09, 2019Observed: 17.34 ft at 4:30AM Dec 09, 2019Observed: 17.35 ft at 4:45AM Dec 09, 2019Observed: 17.36 ft at 5:00AM Dec 09, 2019Observed: 17.33 ft at 5:15AM Dec 09, 2019Observed: 17.34 ft at 5:30AM Dec 09, 2019Observed: 17.34 ft at 5:45AM Dec 09, 2019Observed: 17.31 ft at 6:00AM Dec 09, 2019Observed: 17.28 ft at 6:15AM Dec 09, 2019Observed: 17.36 ft at 6:30AM Dec 09, 2019Observed: 17.29 ft at 6:45AM Dec 09, 2019Observed: 17.29 ft at 7:00AM Dec 09, 2019Observed: 17.26 ft at 7:15AM Dec 09, 2019Observed: 17.34 ft at 7:30AM Dec 09, 2019Observed: 17.36 ft at 7:45AM Dec 09, 2019Observed: 17.25 ft at 8:00AM Dec 09, 2019Observed: 17.31 ft at 8:15AM Dec 09, 2019Observed: 17.25 ft at 8:30AM Dec 09, 2019Observed: 17.31 ft at 8:45AM Dec 09, 2019Observed: 17.26 ft at 9:00AM Dec 09, 2019Observed: 17.24 ft at 9:15AM Dec 09, 2019Observed: 17.18 ft at 9:30AM Dec 09, 2019Observed: 17.25 ft at 9:45AM Dec 09, 2019Observed: 17.18 ft at 10:00AM Dec 09, 2019Observed: 17.22 ft at 10:15AM Dec 09, 2019Observed: 17.22 ft at 10:30AM Dec 09, 2019Observed: 17.23 ft at 10:45AM Dec 09, 2019Observed: 17.19 ft at 11:00AM Dec 09, 2019Observed: 17.2 ft at 11:15AM Dec 09, 2019Observed: 17.17 ft at 11:30AM Dec 09, 2019Observed: 17.21 ft at 11:45AM Dec 09, 2019Observed: 17.2 ft at 12:00PM Dec 09, 2019Observed: 17.19 ft at 12:15PM Dec 09, 2019Observed: 17.15 ft at 12:30PM Dec 09, 2019Observed: 17.17 ft at 12:45PM Dec 09, 2019Observed: 17.16 ft at 1:00PM Dec 09, 2019Observed: 17.19 ft at 1:15PM Dec 09, 2019Observed: 17.2 ft at 1:30PM Dec 09, 2019Observed: 17.17 ft at 1:45PM Dec 09, 2019Observed: 17.2 ft at 2:00PM Dec 09, 2019Observed: 17.25 ft at 2:15PM Dec 09, 2019Observed: 17.24 ft at 2:30PM Dec 09, 2019USGS--Water Resources of the United StatesSXCI4(plotting HGIRG) Graph Created (3:48PM Dec 9, 2019)ObservedLatest observed value: 17.24 ft at 2:30 PM CST 9-Dec-2019. Flood Stage is 32 ft
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About this graph
Tabular Data (UTC)
Tabular Data (CST)
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: 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.

Vertical datum height surveyed by the USGS

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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) 37.42 ft on 03/17/2019 (P)
(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) 37.42 ft on 03/17/2019 (P)
(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 ft 1092.0 ft Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps
NGVD 29 992.7 1091.7 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?
Resources Collapse
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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