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Hydrograph River at a Glance Download
Big Sioux River at Sioux City Stage (ft)Flow (kcfs)Observed: 21.74 ft at 5:45PM Aug 17, 2019Observed: 21.75 ft at 6:00PM Aug 17, 2019Observed: 21.76 ft at 6:15PM Aug 17, 2019Observed: 21.76 ft at 6:30PM Aug 17, 2019Observed: 21.76 ft at 6:31PM Aug 17, 2019Observed: 21.76 ft at 6:45PM Aug 17, 2019Observed: 21.76 ft at 6:46PM Aug 17, 2019Observed: 21.76 ft at 7:00PM Aug 17, 2019Observed: 21.76 ft at 7:01PM Aug 17, 2019Observed: 21.77 ft at 7:15PM Aug 17, 2019Observed: 21.76 ft at 7:30PM Aug 17, 2019Observed: 21.77 ft at 7:45PM Aug 17, 2019Observed: 21.76 ft at 8:00PM Aug 17, 2019Observed: 21.77 ft at 8:15PM Aug 17, 2019Observed: 21.76 ft at 8:30PM Aug 17, 2019Observed: 21.76 ft at 8:45PM Aug 17, 2019Observed: 21.77 ft at 9:15PM Aug 17, 2019Observed: 21.77 ft at 9:30PM Aug 17, 2019Observed: 21.76 ft at 9:45PM Aug 17, 2019Observed: 21.78 ft at 10:00PM Aug 17, 2019Observed: 21.77 ft at 10:15PM Aug 17, 2019Observed: 21.78 ft at 10:30PM Aug 17, 2019Observed: 21.77 ft at 10:45PM Aug 17, 2019Observed: 21.79 ft at 11:00PM Aug 17, 2019Observed: 21.79 ft at 11:15PM Aug 17, 2019Observed: 21.78 ft at 11:30PM Aug 17, 2019Observed: 21.78 ft at 11:45PM Aug 17, 2019Observed: 21.82 ft at 12:00AM Aug 18, 2019Observed: 21.79 ft at 12:15AM Aug 18, 2019Observed: 21.77 ft at 12:30AM Aug 18, 2019Observed: 21.78 ft at 12:45AM Aug 18, 2019Observed: 21.8 ft at 1:00AM Aug 18, 2019Observed: 21.8 ft at 1:15AM Aug 18, 2019Observed: 21.83 ft at 1:30AM Aug 18, 2019Observed: 21.83 ft at 1:45AM Aug 18, 2019Observed: 21.86 ft at 2:00AM Aug 18, 2019Observed: 21.86 ft at 2:15AM Aug 18, 2019Observed: 21.87 ft at 2:30AM Aug 18, 2019Observed: 21.87 ft at 2:32AM Aug 18, 2019Observed: 21.87 ft at 2:45AM Aug 18, 2019Observed: 21.87 ft at 2:47AM Aug 18, 2019Observed: 21.88 ft at 3:00AM Aug 18, 2019Observed: 21.88 ft at 3:02AM Aug 18, 2019Observed: 21.87 ft at 3:15AM Aug 18, 2019Observed: 21.85 ft at 3:30AM Aug 18, 2019Observed: 21.86 ft at 3:45AM Aug 18, 2019Observed: 21.88 ft at 4:00AM Aug 18, 2019Observed: 21.87 ft at 4:15AM Aug 18, 2019Observed: 21.86 ft at 4:45AM Aug 18, 2019Observed: 21.87 ft at 5:00AM Aug 18, 2019Observed: 21.88 ft at 5:15AM Aug 18, 2019Observed: 21.88 ft at 5:30AM Aug 18, 2019Observed: 21.87 ft at 5:45AM Aug 18, 2019Observed: 21.87 ft at 6:00AM Aug 18, 2019Observed: 21.88 ft at 6:15AM Aug 18, 2019Observed: 21.88 ft at 6:30AM Aug 18, 2019Observed: 21.88 ft at 6:45AM Aug 18, 2019Observed: 21.89 ft at 7:00AM Aug 18, 2019Observed: 21.89 ft at 7:15AM Aug 18, 2019Observed: 21.89 ft at 7:30AM Aug 18, 2019Observed: 21.87 ft at 7:45AM Aug 18, 2019Observed: 21.88 ft at 8:00AM Aug 18, 2019Observed: 21.88 ft at 8:15AM Aug 18, 2019Observed: 21.9 ft at 8:30AM Aug 18, 2019Observed: 21.9 ft at 8:45AM Aug 18, 2019Observed: 21.88 ft at 9:00AM Aug 18, 2019Observed: 21.88 ft at 9:15AM Aug 18, 2019Observed: 21.88 ft at 9:30AM Aug 18, 2019Observed: 21.88 ft at 9:45AM Aug 18, 2019Observed: 21.87 ft at 10:00AM Aug 18, 2019Observed: 21.89 ft at 10:15AM Aug 18, 2019Observed: 21.9 ft at 10:30AM Aug 18, 2019Observed: 21.9 ft at 10:31AM Aug 18, 2019Observed: 21.89 ft at 10:45AM Aug 18, 2019Observed: 21.89 ft at 10:46AM Aug 18, 2019Observed: 21.91 ft at 11:00AM Aug 18, 2019Observed: 21.91 ft at 11:01AM Aug 18, 2019Observed: 21.91 ft at 11:15AM Aug 18, 2019Observed: 21.91 ft at 11:30AM Aug 18, 2019Observed: 21.91 ft at 11:45AM Aug 18, 2019Observed: 21.91 ft at 12:00PM Aug 18, 2019Observed: 21.92 ft at 12:15PM Aug 18, 2019Highest Observation: 21.93 ft at 12:30PM Aug 18, 2019Observed: 21.92 ft at 12:45PM Aug 18, 2019Highest Observation: 21.93 ft at 1:00PM Aug 18, 2019Highest Observation: 21.93 ft at 1:15PM Aug 18, 2019Observed: 21.91 ft at 1:30PM Aug 18, 2019Observed: 21.92 ft at 1:45PM Aug 18, 2019Observed: 21.91 ft at 2:00PM Aug 18, 2019Observed: 21.91 ft at 2:15PM Aug 18, 2019Observed: 21.9 ft at 2:30PM Aug 18, 2019Observed: 21.91 ft at 2:45PM Aug 18, 2019Observed: 21.89 ft at 3:00PM Aug 18, 2019Observed: 21.89 ft at 3:15PM Aug 18, 2019Observed: 21.9 ft at 3:30PM Aug 18, 2019Observed: 21.9 ft at 3:45PM Aug 18, 2019Observed: 21.91 ft at 4:00PM Aug 18, 2019Observed: 21.9 ft at 4:15PM Aug 18, 2019Observed: 21.91 ft at 4:30PM Aug 18, 2019Observed: 21.91 ft at 4:45PM Aug 18, 2019Observed: 21.92 ft at 5:00PM Aug 18, 2019Observed: 21.9 ft at 5:15PM Aug 18, 2019Observed: 21.91 ft at 5:30PM Aug 18, 2019Observed: 21.9 ft at 5:45PM Aug 18, 2019Observed: 21.9 ft at 6:00PM Aug 18, 2019Observed: 21.9 ft at 6:15PM Aug 18, 2019Observed: 21.91 ft at 6:30PM Aug 18, 2019Observed: 21.91 ft at 6:45PM Aug 18, 2019Observed: 21.91 ft at 6:47PM Aug 18, 2019Observed: 21.92 ft at 7:00PM Aug 18, 2019Observed: 21.92 ft at 7:02PM Aug 18, 2019Observed: 21.91 ft at 7:15PM Aug 18, 2019Observed: 21.91 ft at 7:17PM Aug 18, 2019Observed: 21.9 ft at 7:30PM Aug 18, 2019Observed: 21.91 ft at 7:45PM Aug 18, 2019Observed: 21.91 ft at 8:00PM Aug 18, 2019Observed: 21.9 ft at 8:15PM Aug 18, 2019Observed: 21.91 ft at 8:30PM Aug 18, 2019Observed: 21.91 ft at 8:45PM Aug 18, 2019Observed: 21.89 ft at 9:00PM Aug 18, 2019Observed: 21.89 ft at 9:15PM Aug 18, 2019Observed: 21.9 ft at 9:30PM Aug 18, 2019Observed: 21.9 ft at 9:45PM Aug 18, 2019Observed: 21.9 ft at 10:00PM Aug 18, 2019Observed: 21.9 ft at 10:15PM Aug 18, 2019Observed: 21.89 ft at 10:30PM Aug 18, 2019Observed: 21.89 ft at 10:45PM Aug 18, 2019Observed: 21.9 ft at 11:00PM Aug 18, 2019Observed: 21.89 ft at 11:15PM Aug 18, 2019Observed: 21.9 ft at 11:30PM Aug 18, 2019Observed: 21.89 ft at 11:45PM Aug 18, 2019Observed: 21.87 ft at 12:00AM Aug 19, 2019Observed: 21.88 ft at 12:15AM Aug 19, 2019Observed: 21.87 ft at 12:30AM Aug 19, 2019Observed: 21.86 ft at 12:45AM Aug 19, 2019Observed: 21.87 ft at 1:00AM Aug 19, 2019Observed: 21.87 ft at 1:15AM Aug 19, 2019Observed: 21.86 ft at 1:30AM Aug 19, 2019Observed: 21.86 ft at 1:45AM Aug 19, 2019Observed: 21.86 ft at 2:00AM Aug 19, 2019Observed: 21.85 ft at 2:15AM Aug 19, 2019Observed: 21.84 ft at 2:30AM Aug 19, 2019Observed: 21.86 ft at 2:45AM Aug 19, 2019Observed: 21.86 ft at 2:47AM Aug 19, 2019Observed: 21.85 ft at 3:00AM Aug 19, 2019Observed: 21.85 ft at 3:02AM Aug 19, 2019Observed: 21.84 ft at 3:15AM Aug 19, 2019Observed: 21.84 ft at 3:17AM Aug 19, 2019Observed: 21.82 ft at 3:30AM Aug 19, 2019Observed: 21.83 ft at 3:45AM Aug 19, 2019Observed: 21.84 ft at 4:00AM Aug 19, 2019Observed: 21.85 ft at 4:15AM Aug 19, 2019Observed: 21.85 ft at 4:30AM Aug 19, 2019Observed: 21.86 ft at 4:45AM Aug 19, 2019Observed: 21.84 ft at 5:00AM Aug 19, 2019Observed: 21.86 ft at 5:15AM Aug 19, 2019Observed: 21.85 ft at 5:30AM Aug 19, 2019Observed: 21.86 ft at 5:45AM Aug 19, 2019Observed: 21.85 ft at 6:00AM Aug 19, 2019Observed: 21.85 ft at 6:15AM Aug 19, 2019Observed: 21.85 ft at 6:30AM Aug 19, 2019Observed: 21.85 ft at 6:45AM Aug 19, 2019Observed: 21.84 ft at 7:00AM Aug 19, 2019Observed: 21.83 ft at 7:15AM Aug 19, 2019Observed: 21.84 ft at 7:30AM Aug 19, 2019Observed: 21.84 ft at 7:45AM Aug 19, 2019Observed: 21.84 ft at 8:00AM Aug 19, 2019Observed: 21.84 ft at 8:15AM Aug 19, 2019Observed: 21.85 ft at 8:30AM Aug 19, 2019Observed: 21.84 ft at 8:45AM Aug 19, 2019Observed: 21.83 ft at 9:00AM Aug 19, 2019Observed: 21.82 ft at 9:15AM Aug 19, 2019Observed: 21.83 ft at 9:30AM Aug 19, 2019Observed: 21.83 ft at 9:45AM Aug 19, 2019Observed: 21.83 ft at 10:00AM Aug 19, 2019Observed: 21.83 ft at 10:15AM Aug 19, 2019Observed: 21.85 ft at 10:30AM Aug 19, 2019Observed: 21.84 ft at 10:45AM Aug 19, 2019Observed: 21.84 ft at 10:46AM Aug 19, 2019Observed: 21.84 ft at 11:00AM Aug 19, 2019Observed: 21.84 ft at 11:01AM Aug 19, 2019Observed: 21.84 ft at 11:15AM Aug 19, 2019Observed: 21.84 ft at 11:16AM Aug 19, 2019Observed: 21.83 ft at 11:30AM Aug 19, 2019Observed: 21.83 ft at 11:45AM Aug 19, 2019Observed: 21.84 ft at 12:00PM Aug 19, 2019Observed: 21.83 ft at 12:15PM Aug 19, 2019Observed: 21.84 ft at 12:30PM Aug 19, 2019Observed: 21.83 ft at 12:45PM Aug 19, 2019Observed: 21.86 ft at 1:00PM Aug 19, 2019Observed: 21.84 ft at 1:15PM Aug 19, 2019Observed: 21.83 ft at 1:30PM Aug 19, 2019Observed: 21.83 ft at 1:45PM Aug 19, 2019Observed: 21.83 ft at 2:00PM Aug 19, 2019Observed: 21.83 ft at 2:15PM Aug 19, 2019Observed: 21.82 ft at 2:30PM Aug 19, 2019Observed: 21.8 ft at 2:45PM Aug 19, 2019Observed: 21.81 ft at 3:00PM Aug 19, 2019Observed: 21.8 ft at 3:15PM Aug 19, 2019Observed: 21.82 ft at 3:30PM Aug 19, 2019Observed: 21.82 ft at 3:45PM Aug 19, 2019Observed: 21.82 ft at 4:00PM Aug 19, 2019Observed: 21.82 ft at 4:15PM Aug 19, 2019Observed: 21.81 ft at 4:30PM Aug 19, 2019Observed: 21.81 ft at 4:45PM Aug 19, 2019Observed: 21.81 ft at 5:00PM Aug 19, 2019Observed: 21.82 ft at 5:15PM Aug 19, 2019Observed: 21.81 ft at 5:30PM Aug 19, 2019Observed: 21.82 ft at 5:45PM Aug 19, 2019Observed: 21.81 ft at 6:00PM Aug 19, 2019Observed: 21.82 ft at 6:15PM Aug 19, 2019Observed: 21.81 ft at 6:30PM Aug 19, 2019Observed: 21.81 ft at 6:45PM Aug 19, 2019Observed: 21.81 ft at 6:47PM Aug 19, 2019Observed: 21.82 ft at 7:00PM Aug 19, 2019Observed: 21.82 ft at 7:02PM Aug 19, 2019Observed: 21.82 ft at 7:15PM Aug 19, 2019Observed: 21.82 ft at 7:17PM Aug 19, 2019Observed: 21.82 ft at 7:30PM Aug 19, 2019Observed: 21.82 ft at 7:45PM Aug 19, 2019Observed: 21.82 ft at 8:00PM Aug 19, 2019Observed: 21.81 ft at 8:15PM Aug 19, 2019Observed: 21.81 ft at 8:30PM Aug 19, 2019Observed: 21.82 ft at 8:45PM Aug 19, 2019Observed: 21.81 ft at 9:00PM Aug 19, 2019Observed: 21.82 ft at 9:15PM Aug 19, 2019Observed: 21.81 ft at 9:30PM Aug 19, 2019Observed: 21.8 ft at 9:45PM Aug 19, 2019Observed: 21.81 ft at 10:00PM Aug 19, 2019Observed: 21.8 ft at 10:15PM Aug 19, 2019Observed: 21.8 ft at 10:30PM Aug 19, 2019Observed: 21.81 ft at 10:45PM Aug 19, 2019Observed: 21.82 ft at 11:00PM Aug 19, 2019Observed: 21.81 ft at 11:15PM Aug 19, 2019Observed: 21.82 ft at 11:30PM Aug 19, 2019Observed: 21.83 ft at 11:45PM Aug 19, 2019Observed: 21.82 ft at 12:00AM Aug 20, 2019Observed: 21.83 ft at 12:15AM Aug 20, 2019Observed: 21.83 ft at 12:30AM Aug 20, 2019Observed: 21.81 ft at 12:45AM Aug 20, 2019Observed: 21.82 ft at 1:00AM Aug 20, 2019Observed: 21.82 ft at 1:15AM Aug 20, 2019Observed: 21.82 ft at 1:30AM Aug 20, 2019Observed: 21.82 ft at 1:45AM Aug 20, 2019Observed: 21.81 ft at 2:00AM Aug 20, 2019Observed: 21.81 ft at 2:15AM Aug 20, 2019Observed: 21.85 ft at 2:30AM Aug 20, 2019Observed: 21.82 ft at 2:45AM Aug 20, 2019Observed: 21.82 ft at 2:47AM Aug 20, 2019Observed: 21.83 ft at 3:00AM Aug 20, 2019Observed: 21.83 ft at 3:02AM Aug 20, 2019Observed: 21.82 ft at 3:15AM Aug 20, 2019Observed: 21.82 ft at 3:17AM Aug 20, 2019Observed: 21.82 ft at 3:30AM Aug 20, 2019Observed: 21.81 ft at 3:45AM Aug 20, 2019Observed: 21.8 ft at 4:00AM Aug 20, 2019Observed: 21.8 ft at 4:15AM Aug 20, 2019Observed: 21.81 ft at 4:30AM Aug 20, 2019Observed: 21.81 ft at 4:45AM Aug 20, 2019Observed: 21.82 ft at 5:00AM Aug 20, 2019Observed: 21.8 ft at 5:15AM Aug 20, 2019Observed: 21.8 ft at 5:30AM Aug 20, 2019Observed: 21.79 ft at 5:45AM Aug 20, 2019Observed: 21.79 ft at 6:00AM Aug 20, 2019Observed: 21.79 ft at 6:15AM Aug 20, 2019Observed: 21.78 ft at 6:30AM Aug 20, 2019Observed: 21.79 ft at 6:45AM Aug 20, 2019Observed: 21.8 ft at 7:00AM Aug 20, 2019Observed: 21.78 ft at 7:15AM Aug 20, 2019Observed: 21.78 ft at 7:30AM Aug 20, 2019Observed: 21.78 ft at 7:45AM Aug 20, 2019Observed: 21.78 ft at 8:00AM Aug 20, 2019Observed: 21.78 ft at 8:15AM Aug 20, 2019Observed: 21.78 ft at 8:30AM Aug 20, 2019Observed: 21.77 ft at 8:45AM Aug 20, 2019Observed: 21.76 ft at 9:00AM Aug 20, 2019Observed: 21.77 ft at 9:15AM Aug 20, 2019Observed: 21.77 ft at 9:30AM Aug 20, 2019Observed: 21.77 ft at 9:45AM Aug 20, 2019Observed: 21.76 ft at 10:00AM Aug 20, 2019Observed: 21.77 ft at 10:15AM Aug 20, 2019Observed: 21.77 ft at 10:30AM Aug 20, 2019Observed: 21.76 ft at 10:45AM Aug 20, 2019Observed: 21.76 ft at 10:46AM Aug 20, 2019Observed: 21.76 ft at 11:00AM Aug 20, 2019Observed: 21.76 ft at 11:01AM Aug 20, 2019Observed: 21.76 ft at 11:15AM Aug 20, 2019Observed: 21.76 ft at 11:16AM Aug 20, 2019Observed: 21.76 ft at 11:30AM Aug 20, 2019Observed: 21.76 ft at 11:45AM Aug 20, 2019Observed: 21.75 ft at 12:00PM Aug 20, 2019Observed: 21.75 ft at 12:15PM Aug 20, 2019Observed: 21.74 ft at 12:30PM Aug 20, 2019Observed: 21.75 ft at 12:45PM Aug 20, 2019Observed: 21.76 ft at 1:00PM Aug 20, 2019Observed: 21.77 ft at 1:15PM Aug 20, 2019Observed: 21.76 ft at 1:30PM Aug 20, 2019Observed: 21.76 ft at 1:45PM Aug 20, 2019Observed: 21.76 ft at 2:00PM Aug 20, 2019Observed: 21.75 ft at 2:15PM Aug 20, 2019Observed: 21.75 ft at 2:30PM Aug 20, 2019Observed: 21.75 ft at 2:45PM Aug 20, 2019Observed: 21.76 ft at 3:00PM Aug 20, 2019Observed: 21.76 ft at 3:15PM Aug 20, 2019Observed: 21.74 ft at 3:30PM Aug 20, 2019Observed: 21.76 ft at 3:45PM Aug 20, 2019Observed: 21.76 ft at 4:00PM Aug 20, 2019Observed: 21.76 ft at 4:15PM Aug 20, 2019Observed: 21.76 ft at 4:30PM Aug 20, 2019Observed: 21.76 ft at 4:45PM Aug 20, 2019Observed: 21.77 ft at 5:00PM Aug 20, 2019Observed: 21.77 ft at 5:15PM Aug 20, 2019Observed: 21.76 ft at 5:30PM Aug 20, 2019Observed: 21.76 ft at 5:45PM Aug 20, 2019Observed: 21.76 ft at 6:00PM Aug 20, 2019Observed: 21.75 ft at 6:15PM Aug 20, 2019Observed: 21.76 ft at 6:30PM Aug 20, 2019Observed: 21.77 ft at 6:45PM Aug 20, 2019Observed: 21.77 ft at 6:46PM Aug 20, 2019Observed: 21.77 ft at 7:00PM Aug 20, 2019Observed: 21.77 ft at 7:01PM Aug 20, 2019Observed: 21.77 ft at 7:15PM Aug 20, 2019Observed: 21.77 ft at 7:16PM Aug 20, 2019Observed: 21.77 ft at 7:30PM Aug 20, 2019Observed: 21.79 ft at 7:45PM Aug 20, 2019Observed: 21.78 ft at 8:00PM Aug 20, 2019Observed: 21.8 ft at 8:15PM Aug 20, 2019Observed: 21.79 ft at 8:30PM Aug 20, 2019Observed: 21.78 ft at 8:45PM Aug 20, 2019Observed: 21.78 ft at 9:00PM Aug 20, 2019Observed: 21.8 ft at 9:15PM Aug 20, 2019Observed: 21.8 ft at 9:30PM Aug 20, 2019Observed: 21.8 ft at 9:45PM Aug 20, 2019Observed: 21.8 ft at 10:00PM Aug 20, 2019Observed: 21.8 ft at 10:15PM Aug 20, 2019Observed: 21.8 ft at 10:30PM Aug 20, 2019Observed: 21.81 ft at 10:45PM Aug 20, 2019Observed: 21.81 ft at 11:00PM Aug 20, 2019Observed: 21.81 ft at 11:15PM Aug 20, 2019Observed: 21.81 ft at 11:30PM Aug 20, 2019Observed: 21.8 ft at 11:45PM Aug 20, 2019Observed: 21.8 ft at 12:00AM Aug 21, 2019Observed: 21.82 ft at 12:15AM Aug 21, 2019Observed: 21.8 ft at 12:30AM Aug 21, 2019Observed: 21.8 ft at 12:45AM Aug 21, 2019Observed: 21.79 ft at 1:00AM Aug 21, 2019Observed: 21.8 ft at 1:15AM Aug 21, 2019Observed: 21.8 ft at 1:30AM Aug 21, 2019Observed: 21.8 ft at 1:45AM Aug 21, 2019Observed: 21.79 ft at 2:00AM Aug 21, 2019Observed: 21.81 ft at 2:15AM Aug 21, 2019Observed: 21.79 ft at 2:30AM Aug 21, 2019Observed: 21.79 ft at 2:45AM Aug 21, 2019Observed: 21.79 ft at 2:46AM Aug 21, 2019Observed: 21.78 ft at 3:00AM Aug 21, 2019Observed: 21.78 ft at 3:01AM Aug 21, 2019Observed: 21.79 ft at 3:15AM Aug 21, 2019Observed: 21.79 ft at 3:16AM Aug 21, 2019Observed: 21.79 ft at 3:30AM Aug 21, 2019Observed: 21.8 ft at 3:45AM Aug 21, 2019Observed: 21.81 ft at 4:00AM Aug 21, 2019Observed: 21.79 ft at 4:15AM Aug 21, 2019Observed: 21.8 ft at 4:30AM Aug 21, 2019Observed: 21.79 ft at 4:45AM Aug 21, 2019Observed: 21.79 ft at 5:00AM Aug 21, 2019Observed: 21.78 ft at 5:15AM Aug 21, 2019Observed: 21.77 ft at 5:30AM Aug 21, 2019Observed: 21.79 ft at 5:45AM Aug 21, 2019Observed: 21.78 ft at 6:00AM Aug 21, 2019Observed: 21.77 ft at 6:15AM Aug 21, 2019Observed: 21.77 ft at 6:30AM Aug 21, 2019Observed: 21.77 ft at 6:45AM Aug 21, 2019Observed: 21.75 ft at 7:00AM Aug 21, 2019Observed: 21.76 ft at 7:15AM Aug 21, 2019Observed: 21.76 ft at 7:30AM Aug 21, 2019Observed: 21.76 ft at 7:45AM Aug 21, 2019Observed: 21.77 ft at 8:00AM Aug 21, 2019Observed: 21.76 ft at 8:15AM Aug 21, 2019Observed: 21.75 ft at 8:30AM Aug 21, 2019Observed: 21.74 ft at 8:45AM Aug 21, 2019Observed: 21.73 ft at 9:00AM Aug 21, 2019Observed: 21.74 ft at 9:15AM Aug 21, 2019Observed: 21.74 ft at 9:30AM Aug 21, 2019Observed: 21.75 ft at 9:45AM Aug 21, 2019Observed: 21.76 ft at 10:00AM Aug 21, 2019Observed: 21.74 ft at 10:15AM Aug 21, 2019Observed: 21.75 ft at 10:30AM Aug 21, 2019Observed: 21.74 ft at 10:45AM Aug 21, 2019Observed: 21.74 ft at 10:46AM Aug 21, 2019Observed: 21.74 ft at 11:00AM Aug 21, 2019Observed: 21.74 ft at 11:01AM Aug 21, 2019Observed: 21.74 ft at 11:15AM Aug 21, 2019Observed: 21.74 ft at 11:16AM Aug 21, 2019Observed: 21.75 ft at 11:30AM Aug 21, 2019Observed: 21.74 ft at 11:45AM Aug 21, 2019Observed: 21.73 ft at 12:00PM Aug 21, 2019Observed: 21.72 ft at 12:15PM Aug 21, 2019Observed: 21.72 ft at 12:30PM Aug 21, 2019Observed: 21.71 ft at 12:45PM Aug 21, 2019Observed: 21.73 ft at 1:00PM Aug 21, 2019Observed: 21.72 ft at 1:15PM Aug 21, 2019Observed: 21.72 ft at 1:30PM Aug 21, 2019Observed: 21.72 ft at 1:45PM Aug 21, 2019Observed: 21.72 ft at 2:00PM Aug 21, 2019Observed: 21.73 ft at 2:15PM Aug 21, 2019Observed: 21.74 ft at 2:30PM Aug 21, 2019Observed: 21.74 ft at 2:45PM Aug 21, 2019Observed: 21.73 ft at 3:00PM Aug 21, 2019Observed: 21.73 ft at 3:15PM Aug 21, 2019Observed: 21.71 ft at 3:30PM Aug 21, 2019Observed: 21.71 ft at 3:45PM Aug 21, 2019Observed: 21.73 ft at 4:00PM Aug 21, 2019Observed: 21.72 ft at 4:15PM Aug 21, 2019Observed: 21.73 ft at 4:30PM Aug 21, 2019Observed: 21.73 ft at 4:45PM Aug 21, 2019Observed: 21.72 ft at 5:00PM Aug 21, 2019Observed: 21.74 ft at 5:15PM Aug 21, 2019Observed: 21.74 ft at 5:30PM Aug 21, 2019Observed: 21.73 ft at 5:45PM Aug 21, 2019Observed: 21.72 ft at 6:00PM Aug 21, 2019Observed: 21.74 ft at 6:15PM Aug 21, 2019Observed: 21.73 ft at 6:30PM Aug 21, 2019Observed: 21.74 ft at 6:45PM Aug 21, 2019Observed: 21.74 ft at 6:46PM Aug 21, 2019Observed: 21.74 ft at 7:00PM Aug 21, 2019Observed: 21.74 ft at 7:01PM Aug 21, 2019Observed: 21.75 ft at 7:15PM Aug 21, 2019Observed: 21.75 ft at 7:16PM Aug 21, 2019Observed: 21.76 ft at 7:30PM Aug 21, 2019Observed: 21.75 ft at 7:45PM Aug 21, 2019Observed: 21.75 ft at 8:00PM Aug 21, 2019Observed: 21.74 ft at 8:15PM Aug 21, 2019Observed: 21.74 ft at 8:30PM Aug 21, 2019Observed: 21.76 ft at 8:45PM Aug 21, 2019Observed: 21.75 ft at 9:00PM Aug 21, 2019Observed: 21.75 ft at 9:15PM Aug 21, 2019Observed: 21.75 ft at 9:30PM Aug 21, 2019Observed: 21.76 ft at 9:45PM Aug 21, 2019Observed: 21.75 ft at 10:00PM Aug 21, 2019Observed: 21.76 ft at 10:15PM Aug 21, 2019Observed: 21.76 ft at 10:30PM Aug 21, 2019Observed: 21.76 ft at 10:45PM Aug 21, 2019Observed: 21.75 ft at 11:00PM Aug 21, 2019Observed: 21.76 ft at 11:15PM Aug 21, 2019Observed: 21.76 ft at 11:30PM Aug 21, 2019Observed: 21.76 ft at 11:45PM Aug 21, 2019Observed: 21.76 ft at 12:00AM Aug 22, 2019Observed: 21.77 ft at 12:15AM Aug 22, 2019Observed: 21.76 ft at 12:30AM Aug 22, 2019Observed: 21.76 ft at 12:45AM Aug 22, 2019Observed: 21.77 ft at 1:00AM Aug 22, 2019Observed: 21.77 ft at 1:15AM Aug 22, 2019Observed: 21.77 ft at 1:30AM Aug 22, 2019Observed: 21.76 ft at 1:45AM Aug 22, 2019Observed: 21.76 ft at 2:00AM Aug 22, 2019Observed: 21.75 ft at 2:15AM Aug 22, 2019Observed: 21.76 ft at 2:30AM Aug 22, 2019Observed: 21.77 ft at 2:45AM Aug 22, 2019Observed: 21.76 ft at 3:00AM Aug 22, 2019Observed: 21.76 ft at 3:02AM Aug 22, 2019Observed: 21.76 ft at 3:15AM Aug 22, 2019Observed: 21.76 ft at 3:17AM Aug 22, 2019Observed: 21.77 ft at 3:30AM Aug 22, 2019Observed: 21.77 ft at 3:32AM Aug 22, 2019Observed: 21.76 ft at 3:45AM Aug 22, 2019Observed: 21.76 ft at 4:00AM Aug 22, 2019Observed: 21.78 ft at 4:15AM Aug 22, 2019Observed: 21.78 ft at 4:30AM Aug 22, 2019Observed: 21.76 ft at 4:45AM Aug 22, 2019Observed: 21.77 ft at 5:00AM Aug 22, 2019Observed: 21.76 ft at 5:15AM Aug 22, 2019Observed: 21.76 ft at 5:30AM Aug 22, 2019Observed: 21.77 ft at 5:45AM Aug 22, 2019Observed: 21.76 ft at 6:00AM Aug 22, 2019Observed: 21.76 ft at 6:15AM Aug 22, 2019Observed: 21.76 ft at 6:30AM Aug 22, 2019Observed: 21.75 ft at 6:45AM Aug 22, 2019Observed: 21.75 ft at 7:00AM Aug 22, 2019Observed: 21.75 ft at 7:15AM Aug 22, 2019Observed: 21.74 ft at 7:30AM Aug 22, 2019Observed: 21.75 ft at 7:45AM Aug 22, 2019Observed: 21.74 ft at 8:00AM Aug 22, 2019Observed: 21.75 ft at 8:15AM Aug 22, 2019Observed: 21.74 ft at 8:30AM Aug 22, 2019Observed: 21.74 ft at 8:45AM Aug 22, 2019Observed: 21.74 ft at 9:00AM Aug 22, 2019Observed: 21.74 ft at 9:15AM Aug 22, 2019Observed: 21.75 ft at 9:30AM Aug 22, 2019Observed: 21.74 ft at 9:45AM Aug 22, 2019Observed: 21.73 ft at 10:00AM Aug 22, 2019Observed: 21.73 ft at 10:15AM Aug 22, 2019Observed: 21.73 ft at 10:30AM Aug 22, 2019Observed: 21.73 ft at 10:45AM Aug 22, 2019Observed: 21.72 ft at 11:00AM Aug 22, 2019Observed: 21.72 ft at 11:01AM Aug 22, 2019Observed: 21.72 ft at 11:15AM Aug 22, 2019Observed: 21.72 ft at 11:16AM Aug 22, 2019Observed: 21.71 ft at 11:30AM Aug 22, 2019Observed: 21.71 ft at 11:31AM Aug 22, 2019Observed: 21.71 ft at 11:45AM Aug 22, 2019Observed: 21.72 ft at 12:00PM Aug 22, 2019Observed: 21.72 ft at 12:15PM Aug 22, 2019Observed: 21.72 ft at 12:30PM Aug 22, 2019Observed: 21.72 ft at 12:45PM Aug 22, 2019Observed: 21.72 ft at 1:00PM Aug 22, 2019Observed: 21.7 ft at 1:15PM Aug 22, 2019Observed: 21.72 ft at 1:30PM Aug 22, 2019Observed: 21.71 ft at 1:45PM Aug 22, 2019Observed: 21.71 ft at 2:00PM Aug 22, 2019Observed: 21.71 ft at 2:15PM Aug 22, 2019Observed: 21.7 ft at 2:30PM Aug 22, 2019Observed: 21.71 ft at 2:45PM Aug 22, 2019Observed: 21.71 ft at 3:00PM Aug 22, 2019Observed: 21.71 ft at 3:15PM Aug 22, 2019Observed: 21.71 ft at 3:30PM Aug 22, 2019Observed: 21.71 ft at 3:45PM Aug 22, 2019Observed: 21.69 ft at 4:00PM Aug 22, 2019Observed: 21.7 ft at 4:15PM Aug 22, 2019Observed: 21.69 ft at 4:30PM Aug 22, 2019Observed: 21.69 ft at 4:45PM Aug 22, 2019Observed: 21.69 ft at 5:00PM Aug 22, 2019Observed: 21.7 ft at 5:15PM Aug 22, 2019Observed: 21.69 ft at 5:30PM Aug 22, 2019Observed: 21.69 ft at 5:45PM Aug 22, 2019Observed: 21.7 ft at 6:00PM Aug 22, 2019Observed: 21.71 ft at 6:15PM Aug 22, 2019Observed: 21.72 ft at 6:30PM Aug 22, 2019Observed: 21.72 ft at 6:45PM Aug 22, 2019Observed: 21.72 ft at 7:00PM Aug 22, 2019Observed: 21.71 ft at 7:15PM Aug 22, 2019Observed: 21.72 ft at 7:30PM Aug 22, 2019Observed: 21.71 ft at 7:45PM Aug 22, 2019Observed: 21.71 ft at 8:00PM Aug 22, 2019Observed: 21.72 ft at 8:15PM Aug 22, 2019Observed: 21.7 ft at 8:30PM Aug 22, 2019Observed: 21.69 ft at 8:45PM Aug 22, 2019Observed: 21.71 ft at 9:00PM Aug 22, 2019Observed: 21.71 ft at 9:15PM Aug 22, 2019Observed: 21.72 ft at 9:30PM Aug 22, 2019Observed: 21.72 ft at 9:45PM Aug 22, 2019Observed: 21.73 ft at 10:00PM Aug 22, 2019Observed: 21.72 ft at 10:15PM Aug 22, 2019Observed: 21.72 ft at 10:30PM Aug 22, 2019Observed: 21.71 ft at 10:45PM Aug 22, 2019Observed: 21.71 ft at 11:00PM Aug 22, 2019Observed: 21.72 ft at 11:15PM Aug 22, 2019Observed: 21.7 ft at 11:30PM Aug 22, 2019Observed: 21.71 ft at 11:45PM Aug 22, 2019Observed: 21.7 ft at 12:00AM Aug 23, 2019Observed: 21.7 ft at 12:15AM Aug 23, 2019Observed: 21.7 ft at 12:30AM Aug 23, 2019Observed: 21.7 ft at 12:45AM Aug 23, 2019Observed: 21.7 ft at 1:00AM Aug 23, 2019Observed: 21.7 ft at 1:15AM Aug 23, 2019Observed: 21.7 ft at 1:30AM Aug 23, 2019Observed: 21.7 ft at 1:45AM Aug 23, 2019Observed: 21.69 ft at 2:00AM Aug 23, 2019Observed: 21.7 ft at 2:15AM Aug 23, 2019Observed: 21.7 ft at 2:30AM Aug 23, 2019Observed: 21.69 ft at 2:45AM Aug 23, 2019Observed: 21.7 ft at 3:00AM Aug 23, 2019Observed: 21.7 ft at 3:02AM Aug 23, 2019Observed: 21.7 ft at 3:15AM Aug 23, 2019Observed: 21.7 ft at 3:17AM Aug 23, 2019Observed: 21.7 ft at 3:30AM Aug 23, 2019Observed: 21.7 ft at 3:32AM Aug 23, 2019Observed: 21.7 ft at 3:45AM Aug 23, 2019Observed: 21.7 ft at 4:00AM Aug 23, 2019Observed: 21.7 ft at 4:15AM Aug 23, 2019Observed: 21.69 ft at 4:30AM Aug 23, 2019Observed: 21.69 ft at 4:45AM Aug 23, 2019Observed: 21.69 ft at 5:00AM Aug 23, 2019Observed: 21.69 ft at 5:15AM Aug 23, 2019Observed: 21.69 ft at 5:30AM Aug 23, 2019Observed: 21.69 ft at 5:45AM Aug 23, 2019Observed: 21.69 ft at 6:00AM Aug 23, 2019Observed: 21.69 ft at 6:15AM Aug 23, 2019Observed: 21.69 ft at 6:30AM Aug 23, 2019Observed: 21.69 ft at 6:45AM Aug 23, 2019Observed: 21.69 ft at 7:00AM Aug 23, 2019Observed: 21.68 ft at 7:15AM Aug 23, 2019Observed: 21.68 ft at 7:30AM Aug 23, 2019Observed: 21.68 ft at 7:45AM Aug 23, 2019Observed: 21.69 ft at 8:00AM Aug 23, 2019Observed: 21.69 ft at 8:15AM Aug 23, 2019Observed: 21.7 ft at 8:30AM Aug 23, 2019Observed: 21.68 ft at 8:45AM Aug 23, 2019Observed: 21.68 ft at 9:00AM Aug 23, 2019Observed: 21.68 ft at 9:15AM Aug 23, 2019Observed: 21.68 ft at 9:30AM Aug 23, 2019Observed: 21.68 ft at 9:45AM Aug 23, 2019Observed: 21.69 ft at 10:00AM Aug 23, 2019Observed: 21.67 ft at 10:15AM Aug 23, 2019Observed: 21.67 ft at 10:30AM Aug 23, 2019Observed: 21.68 ft at 10:45AM Aug 23, 2019Observed: 21.68 ft at 11:00AM Aug 23, 2019Observed: 21.69 ft at 11:15AM Aug 23, 2019Observed: 21.68 ft at 11:30AM Aug 23, 2019Observed: 21.68 ft at 11:45AM Aug 23, 2019Observed: 21.69 ft at 12:00PM Aug 23, 2019Observed: 21.68 ft at 12:15PM Aug 23, 2019Observed: 21.66 ft at 12:30PM Aug 23, 2019Observed: 21.68 ft at 12:45PM Aug 23, 2019Observed: 21.67 ft at 1:00PM Aug 23, 2019Observed: 21.67 ft at 1:15PM Aug 23, 2019Observed: 21.67 ft at 1:30PM Aug 23, 2019Observed: 21.67 ft at 1:45PM Aug 23, 2019Observed: 21.65 ft at 2:00PM Aug 23, 2019Observed: 21.65 ft at 2:15PM Aug 23, 2019Observed: 21.65 ft at 2:30PM Aug 23, 2019Observed: 21.64 ft at 2:45PM Aug 23, 2019Observed: 21.65 ft at 3:00PM Aug 23, 2019Observed: 21.65 ft at 3:15PM Aug 23, 2019Observed: 21.66 ft at 3:30PM Aug 23, 2019Observed: 21.65 ft at 3:45PM Aug 23, 2019Observed: 21.66 ft at 4:00PM Aug 23, 2019Observed: 21.66 ft at 4:15PM Aug 23, 2019Observed: 21.65 ft at 4:30PM Aug 23, 2019Observed: 21.67 ft at 4:45PM Aug 23, 2019Observed: 21.66 ft at 5:00PM Aug 23, 2019Observed: 21.68 ft at 5:15PM Aug 23, 2019Observed: 21.68 ft at 5:30PM Aug 23, 2019Observed: 21.67 ft at 5:45PM Aug 23, 2019Observed: 21.66 ft at 6:00PM Aug 23, 2019Observed: 21.67 ft at 6:15PM Aug 23, 2019Observed: 21.66 ft at 6:30PM Aug 23, 2019Observed: 21.68 ft at 6:45PM Aug 23, 2019Observed: 21.67 ft at 7:00PM Aug 23, 2019Observed: 21.68 ft at 7:15PM Aug 23, 2019Observed: 21.67 ft at 7:30PM Aug 23, 2019Observed: 21.69 ft at 7:45PM Aug 23, 2019Observed: 21.68 ft at 8:00PM Aug 23, 2019Observed: 21.7 ft at 8:15PM Aug 23, 2019Observed: 21.7 ft at 8:30PM Aug 23, 2019Observed: 21.7 ft at 8:45PM Aug 23, 2019Observed: 21.7 ft at 9:00PM Aug 23, 2019Observed: 21.68 ft at 9:15PM Aug 23, 2019Observed: 21.68 ft at 9:30PM Aug 23, 2019Observed: 21.69 ft at 9:45PM Aug 23, 2019Observed: 21.71 ft at 10:00PM Aug 23, 2019Observed: 21.7 ft at 10:15PM Aug 23, 2019Observed: 21.7 ft at 10:30PM Aug 23, 2019Observed: 21.69 ft at 10:45PM Aug 23, 2019Observed: 21.68 ft at 11:00PM Aug 23, 2019Observed: 21.68 ft at 11:15PM Aug 23, 2019Observed: 21.69 ft at 11:30PM Aug 23, 2019Observed: 21.7 ft at 11:45PM Aug 23, 2019Observed: 21.71 ft at 12:00AM Aug 24, 2019Observed: 21.7 ft at 12:15AM Aug 24, 2019Observed: 21.7 ft at 12:30AM Aug 24, 2019Observed: 21.71 ft at 12:45AM Aug 24, 2019Observed: 21.71 ft at 1:00AM Aug 24, 2019Observed: 21.7 ft at 1:15AM Aug 24, 2019Observed: 21.71 ft at 1:30AM Aug 24, 2019Observed: 21.72 ft at 1:45AM Aug 24, 2019Observed: 21.71 ft at 2:00AM Aug 24, 2019Observed: 21.72 ft at 2:15AM Aug 24, 2019Observed: 21.72 ft at 2:30AM Aug 24, 2019Observed: 21.72 ft at 2:45AM Aug 24, 2019Observed: 21.73 ft at 3:00AM Aug 24, 2019Observed: 21.72 ft at 3:15AM Aug 24, 2019Observed: 21.7 ft at 3:30AM Aug 24, 2019Observed: 21.71 ft at 3:45AM Aug 24, 2019Observed: 21.71 ft at 4:00AM Aug 24, 2019Observed: 21.71 ft at 4:15AM Aug 24, 2019Observed: 21.72 ft at 4:30AM Aug 24, 2019Observed: 21.71 ft at 4:45AM Aug 24, 2019Observed: 21.72 ft at 5:00AM Aug 24, 2019Observed: 21.71 ft at 5:15AM Aug 24, 2019Observed: 21.72 ft at 5:30AM Aug 24, 2019Observed: 21.71 ft at 5:45AM Aug 24, 2019Observed: 21.72 ft at 6:00AM Aug 24, 2019Observed: 21.72 ft at 6:15AM Aug 24, 2019Observed: 21.73 ft at 6:30AM Aug 24, 2019Observed: 21.72 ft at 6:45AM Aug 24, 2019Observed: 21.71 ft at 7:00AM Aug 24, 2019Observed: 21.73 ft at 7:15AM Aug 24, 2019Observed: 21.72 ft at 7:30AM Aug 24, 2019Observed: 21.72 ft at 7:45AM Aug 24, 2019Observed: 21.72 ft at 8:00AM Aug 24, 2019Observed: 21.73 ft at 8:15AM Aug 24, 2019Observed: 21.73 ft at 8:30AM Aug 24, 2019Observed: 21.73 ft at 8:45AM Aug 24, 2019Observed: 21.75 ft at 9:00AM Aug 24, 2019Observed: 21.73 ft at 9:15AM Aug 24, 2019Observed: 21.71 ft at 9:30AM Aug 24, 2019Observed: 21.71 ft at 9:45AM Aug 24, 2019Observed: 21.71 ft at 10:00AM Aug 24, 2019Observed: 21.7 ft at 10:15AM Aug 24, 2019Observed: 21.71 ft at 10:30AM Aug 24, 2019Observed: 21.72 ft at 10:45AM Aug 24, 2019Observed: 21.7 ft at 11:00AM Aug 24, 2019Observed: 21.7 ft at 11:01AM Aug 24, 2019Observed: 21.7 ft at 11:15AM Aug 24, 2019Observed: 21.7 ft at 11:16AM Aug 24, 2019Observed: 21.7 ft at 11:30AM Aug 24, 2019Observed: 21.7 ft at 11:31AM Aug 24, 2019Observed: 21.69 ft at 11:45AM Aug 24, 2019Observed: 21.71 ft at 12:00PM Aug 24, 2019Observed: 21.7 ft at 12:15PM Aug 24, 2019Observed: 21.69 ft at 12:30PM Aug 24, 2019Observed: 21.69 ft at 12:45PM Aug 24, 2019Observed: 21.7 ft at 1:00PM Aug 24, 2019Observed: 21.7 ft at 1:15PM Aug 24, 2019Observed: 21.71 ft at 1:30PM Aug 24, 2019Observed: 21.69 ft at 1:45PM Aug 24, 2019Observed: 21.68 ft at 2:00PM Aug 24, 2019Observed: 21.69 ft at 2:15PM Aug 24, 2019Observed: 21.69 ft at 2:30PM Aug 24, 2019Observed: 21.69 ft at 2:45PM Aug 24, 2019Observed: 21.67 ft at 3:00PM Aug 24, 2019Observed: 21.7 ft at 3:15PM Aug 24, 2019Observed: 21.69 ft at 3:30PM Aug 24, 2019Observed: 21.67 ft at 3:45PM Aug 24, 2019Observed: 21.71 ft at 4:00PM Aug 24, 2019Observed: 21.7 ft at 4:15PM Aug 24, 2019Observed: 21.69 ft at 4:30PM Aug 24, 2019USGS--Water Resources of the United StatesSXCI4(plotting HGIRG) Graph Created (5:33PM Aug 24, 2019)ObservedLatest observed value: 21.69 ft at 4:30 PM CDT 24-Aug-2019. 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: Flow values shown may be different than other data sources. All observations are preliminary data.

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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