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Hydrograph River at a Glance Download
Big Sioux River near Brookings Stage (ft)Flow (cfs)Observed: 6.02 ft at 5:15AM Jan 19, 2020Observed: 6.03 ft at 5:30AM Jan 19, 2020Observed: 6.03 ft at 5:45AM Jan 19, 2020Observed: 5.98 ft at 6:00AM Jan 19, 2020Observed: 5.98 ft at 6:15AM Jan 19, 2020Observed: 6.03 ft at 6:30AM Jan 19, 2020Observed: 5.99 ft at 6:45AM Jan 19, 2020Observed: 6.01 ft at 7:00AM Jan 19, 2020Observed: 5.98 ft at 7:15AM Jan 19, 2020Observed: 6 ft at 7:30AM Jan 19, 2020Observed: 6 ft at 7:45AM Jan 19, 2020Observed: 6.01 ft at 8:00AM Jan 19, 2020Observed: 6.01 ft at 8:15AM Jan 19, 2020Observed: 5.99 ft at 8:30AM Jan 19, 2020Observed: 5.99 ft at 8:45AM Jan 19, 2020Observed: 6.04 ft at 9:00AM Jan 19, 2020Observed: 6.02 ft at 9:15AM Jan 19, 2020Observed: 6.04 ft at 9:30AM Jan 19, 2020Observed: 6.04 ft at 9:45AM Jan 19, 2020Observed: 6.04 ft at 10:00AM Jan 19, 2020Observed: 6.05 ft at 10:15AM Jan 19, 2020Observed: 6.05 ft at 10:30AM Jan 19, 2020Observed: 6.01 ft at 10:45AM Jan 19, 2020Observed: 6.06 ft at 11:00AM Jan 19, 2020Observed: 6.05 ft at 11:15AM Jan 19, 2020Observed: 6.02 ft at 11:30AM Jan 19, 2020Observed: 6.07 ft at 11:45AM Jan 19, 2020Observed: 6.08 ft at 12:00PM Jan 19, 2020Observed: 6.06 ft at 12:15PM Jan 19, 2020Observed: 6.07 ft at 12:30PM Jan 19, 2020Observed: 6.05 ft at 12:45PM Jan 19, 2020Observed: 6.06 ft at 1:00PM Jan 19, 2020Observed: 6.07 ft at 1:15PM Jan 19, 2020Observed: 6.07 ft at 1:30PM Jan 19, 2020Observed: 6.1 ft at 1:45PM Jan 19, 2020Observed: 6.09 ft at 2:00PM Jan 19, 2020Observed: 6.09 ft at 2:15PM Jan 19, 2020Observed: 6.09 ft at 2:30PM Jan 19, 2020Observed: 6.12 ft at 2:45PM Jan 19, 2020Observed: 6.1 ft at 3:00PM Jan 19, 2020Observed: 6.08 ft at 3:15PM Jan 19, 2020Observed: 6.09 ft at 3:30PM Jan 19, 2020Observed: 6.1 ft at 3:45PM Jan 19, 2020Observed: 6.14 ft at 4:00PM Jan 19, 2020Observed: 6.14 ft at 4:15PM Jan 19, 2020Observed: 6.14 ft at 4:30PM Jan 19, 2020Observed: 6.16 ft at 4:45PM Jan 19, 2020Observed: 6.13 ft at 5:00PM Jan 19, 2020Observed: 6.13 ft at 5:15PM Jan 19, 2020Observed: 6.15 ft at 5:30PM Jan 19, 2020Observed: 6.17 ft at 5:45PM Jan 19, 2020Observed: 6.14 ft at 6:00PM Jan 19, 2020Observed: 6.16 ft at 6:15PM Jan 19, 2020Observed: 6.19 ft at 6:30PM Jan 19, 2020Observed: 6.18 ft at 6:45PM Jan 19, 2020Observed: 6.16 ft at 7:00PM Jan 19, 2020Observed: 6.19 ft at 7:15PM Jan 19, 2020Observed: 6.16 ft at 7:30PM Jan 19, 2020Observed: 6.19 ft at 7:45PM Jan 19, 2020Observed: 6.2 ft at 8:00PM Jan 19, 2020Observed: 6.2 ft at 8:15PM Jan 19, 2020Highest Observation: 6.21 ft at 8:30PM Jan 19, 2020Observed: 6.2 ft at 8:45PM Jan 19, 2020Observed: 6.16 ft at 9:00PM Jan 19, 2020Observed: 6.16 ft at 9:15PM Jan 19, 2020Highest Observation: 6.21 ft at 9:30PM Jan 19, 2020Observed: 6.16 ft at 9:45PM Jan 19, 2020Observed: 6.2 ft at 10:00PM Jan 19, 2020Observed: 6.15 ft at 10:15PM Jan 19, 2020Observed: 6.2 ft at 10:30PM Jan 19, 2020Observed: 6.14 ft at 10:45PM Jan 19, 2020Observed: 6.18 ft at 11:00PM Jan 19, 2020Observed: 6.15 ft at 11:15PM Jan 19, 2020Observed: 6.18 ft at 11:30PM Jan 19, 2020Observed: 6.16 ft at 11:45PM Jan 19, 2020Observed: 6.14 ft at 12:00AM Jan 20, 2020Observed: 6.18 ft at 12:15AM Jan 20, 2020Observed: 6.14 ft at 12:30AM Jan 20, 2020Observed: 6.11 ft at 12:45AM Jan 20, 2020Observed: 6.12 ft at 1:00AM Jan 20, 2020Observed: 6.15 ft at 1:15AM Jan 20, 2020Observed: 6.15 ft at 1:30AM Jan 20, 2020Observed: 6.14 ft at 1:45AM Jan 20, 2020Observed: 6.14 ft at 1:46AM Jan 20, 2020Observed: 6.1 ft at 2:00AM Jan 20, 2020Observed: 6.1 ft at 2:01AM Jan 20, 2020Observed: 6.12 ft at 2:15AM Jan 20, 2020Observed: 6.12 ft at 2:16AM Jan 20, 2020Observed: 6.14 ft at 2:30AM Jan 20, 2020Observed: 6.13 ft at 2:45AM Jan 20, 2020Observed: 6.13 ft at 3:00AM Jan 20, 2020Observed: 6.09 ft at 3:15AM Jan 20, 2020Observed: 6.12 ft at 3:30AM Jan 20, 2020Observed: 6.13 ft at 3:45AM Jan 20, 2020Observed: 6.13 ft at 4:00AM Jan 20, 2020Observed: 6.12 ft at 4:15AM Jan 20, 2020Observed: 6.09 ft at 4:30AM Jan 20, 2020Observed: 6.07 ft at 4:45AM Jan 20, 2020Observed: 6.08 ft at 5:00AM Jan 20, 2020Observed: 6.12 ft at 5:15AM Jan 20, 2020Observed: 6.11 ft at 5:30AM Jan 20, 2020Observed: 6.07 ft at 6:00AM Jan 20, 2020Observed: 6.1 ft at 6:15AM Jan 20, 2020Observed: 6.12 ft at 6:30AM Jan 20, 2020Observed: 6.11 ft at 6:45AM Jan 20, 2020Observed: 6.09 ft at 7:00AM Jan 20, 2020Observed: 6.1 ft at 7:15AM Jan 20, 2020Observed: 6.09 ft at 7:30AM Jan 20, 2020Observed: 6.09 ft at 7:45AM Jan 20, 2020Observed: 6.06 ft at 8:00AM Jan 20, 2020Observed: 6.05 ft at 8:15AM Jan 20, 2020Observed: 6.07 ft at 8:30AM Jan 20, 2020Observed: 6.06 ft at 8:45AM Jan 20, 2020Observed: 6.08 ft at 9:00AM Jan 20, 2020Observed: 6.06 ft at 9:15AM Jan 20, 2020Observed: 6.05 ft at 9:30AM Jan 20, 2020Observed: 6.06 ft at 9:45AM Jan 20, 2020Observed: 6.06 ft at 9:46AM Jan 20, 2020Observed: 6.03 ft at 10:00AM Jan 20, 2020Observed: 6.03 ft at 10:01AM Jan 20, 2020Observed: 6.04 ft at 10:15AM Jan 20, 2020Observed: 6.04 ft at 10:16AM Jan 20, 2020Observed: 6.04 ft at 10:30AM Jan 20, 2020Observed: 6.07 ft at 10:45AM Jan 20, 2020Observed: 6.06 ft at 11:00AM Jan 20, 2020Observed: 6.03 ft at 11:15AM Jan 20, 2020Observed: 6.02 ft at 11:30AM Jan 20, 2020Observed: 6.02 ft at 11:45AM Jan 20, 2020Observed: 6.02 ft at 12:00PM Jan 20, 2020Observed: 6 ft at 12:15PM Jan 20, 2020Observed: 6.04 ft at 12:30PM Jan 20, 2020Observed: 6.02 ft at 12:45PM Jan 20, 2020Observed: 6.06 ft at 1:00PM Jan 20, 2020Observed: 6.01 ft at 1:15PM Jan 20, 2020Observed: 6.04 ft at 1:30PM Jan 20, 2020Observed: 6.06 ft at 1:45PM Jan 20, 2020Observed: 6.04 ft at 2:00PM Jan 20, 2020Observed: 6.01 ft at 2:15PM Jan 20, 2020Observed: 6.06 ft at 2:30PM Jan 20, 2020Observed: 6.04 ft at 2:45PM Jan 20, 2020Observed: 6.06 ft at 3:00PM Jan 20, 2020Observed: 6.03 ft at 3:15PM Jan 20, 2020Observed: 6.04 ft at 3:30PM Jan 20, 2020Observed: 6.01 ft at 3:45PM Jan 20, 2020Observed: 6.06 ft at 4:00PM Jan 20, 2020Observed: 6.04 ft at 4:15PM Jan 20, 2020Observed: 6.06 ft at 4:30PM Jan 20, 2020Observed: 6.08 ft at 4:45PM Jan 20, 2020Observed: 6.05 ft at 5:00PM Jan 20, 2020Observed: 6.06 ft at 5:15PM Jan 20, 2020Observed: 6.05 ft at 5:30PM Jan 20, 2020Observed: 6.05 ft at 5:45PM Jan 20, 2020Observed: 6.05 ft at 6:00PM Jan 20, 2020Observed: 6.09 ft at 6:15PM Jan 20, 2020Observed: 6.05 ft at 6:30PM Jan 20, 2020Observed: 6.06 ft at 6:45PM Jan 20, 2020Observed: 6.07 ft at 7:00PM Jan 20, 2020Observed: 6.09 ft at 7:15PM Jan 20, 2020Observed: 6.06 ft at 7:30PM Jan 20, 2020Observed: 6.09 ft at 7:45PM Jan 20, 2020Observed: 6.1 ft at 8:00PM Jan 20, 2020Observed: 6.07 ft at 8:15PM Jan 20, 2020Observed: 6.04 ft at 8:30PM Jan 20, 2020Observed: 6.08 ft at 8:45PM Jan 20, 2020Observed: 6.07 ft at 9:00PM Jan 20, 2020Observed: 6.08 ft at 9:15PM Jan 20, 2020Observed: 6.03 ft at 9:30PM Jan 20, 2020Observed: 6.07 ft at 9:45PM Jan 20, 2020Observed: 6.1 ft at 10:00PM Jan 20, 2020Observed: 6.09 ft at 10:15PM Jan 20, 2020Observed: 6.08 ft at 10:30PM Jan 20, 2020Observed: 6.06 ft at 10:45PM Jan 20, 2020Observed: 6.04 ft at 11:00PM Jan 20, 2020Observed: 6.04 ft at 11:15PM Jan 20, 2020Observed: 6.05 ft at 11:30PM Jan 20, 2020Observed: 6.07 ft at 11:45PM Jan 20, 2020Observed: 6.05 ft at 12:00AM Jan 21, 2020Observed: 6.04 ft at 12:15AM Jan 21, 2020Observed: 6.01 ft at 12:30AM Jan 21, 2020Observed: 6.03 ft at 12:45AM Jan 21, 2020Observed: 6.06 ft at 1:00AM Jan 21, 2020Observed: 6.04 ft at 1:15AM Jan 21, 2020Observed: 6.05 ft at 1:30AM Jan 21, 2020Observed: 6.03 ft at 1:45AM Jan 21, 2020Observed: 5.99 ft at 2:00AM Jan 21, 2020Observed: 5.99 ft at 2:01AM Jan 21, 2020Observed: 6.02 ft at 2:15AM Jan 21, 2020Observed: 6.02 ft at 2:16AM Jan 21, 2020Observed: 6 ft at 2:30AM Jan 21, 2020Observed: 6 ft at 2:31AM Jan 21, 2020Observed: 6.04 ft at 2:45AM Jan 21, 2020Observed: 6 ft at 3:00AM Jan 21, 2020Observed: 6.02 ft at 3:15AM Jan 21, 2020Observed: 6 ft at 3:30AM Jan 21, 2020Observed: 6.01 ft at 3:45AM Jan 21, 2020Observed: 5.99 ft at 4:00AM Jan 21, 2020Observed: 6 ft at 4:15AM Jan 21, 2020Observed: 5.99 ft at 4:30AM Jan 21, 2020Observed: 6.01 ft at 4:45AM Jan 21, 2020Observed: 5.97 ft at 5:00AM Jan 21, 2020Observed: 6.03 ft at 5:15AM Jan 21, 2020Observed: 5.96 ft at 5:30AM Jan 21, 2020Observed: 6.03 ft at 5:45AM Jan 21, 2020Observed: 6.02 ft at 6:00AM Jan 21, 2020Observed: 6.02 ft at 6:15AM Jan 21, 2020Observed: 6.01 ft at 6:30AM Jan 21, 2020Observed: 6 ft at 6:45AM Jan 21, 2020Observed: 6 ft at 7:00AM Jan 21, 2020Observed: 5.98 ft at 7:15AM Jan 21, 2020Observed: 5.99 ft at 7:30AM Jan 21, 2020Observed: 5.96 ft at 7:45AM Jan 21, 2020Observed: 5.98 ft at 8:00AM Jan 21, 2020Observed: 5.98 ft at 8:15AM Jan 21, 2020Observed: 5.99 ft at 8:30AM Jan 21, 2020Observed: 5.97 ft at 8:45AM Jan 21, 2020Observed: 5.94 ft at 9:00AM Jan 21, 2020Observed: 5.96 ft at 9:15AM Jan 21, 2020Observed: 5.97 ft at 9:30AM Jan 21, 2020Observed: 5.95 ft at 9:45AM Jan 21, 2020Observed: 5.99 ft at 10:00AM Jan 21, 2020Observed: 5.99 ft at 10:01AM Jan 21, 2020Observed: 5.94 ft at 10:15AM Jan 21, 2020Observed: 5.94 ft at 10:16AM Jan 21, 2020Observed: 5.99 ft at 10:30AM Jan 21, 2020Observed: 5.99 ft at 10:31AM Jan 21, 2020Observed: 5.98 ft at 10:45AM Jan 21, 2020Observed: 5.95 ft at 11:00AM Jan 21, 2020Observed: 5.99 ft at 11:15AM Jan 21, 2020Observed: 5.97 ft at 11:30AM Jan 21, 2020Observed: 6 ft at 11:45AM Jan 21, 2020Observed: 5.94 ft at 12:00PM Jan 21, 2020Observed: 5.97 ft at 12:15PM Jan 21, 2020Observed: 5.95 ft at 12:30PM Jan 21, 2020Observed: 5.98 ft at 12:45PM Jan 21, 2020Observed: 5.97 ft at 1:00PM Jan 21, 2020Observed: 5.94 ft at 1:15PM Jan 21, 2020Observed: 5.96 ft at 1:30PM Jan 21, 2020Observed: 6.01 ft at 1:45PM Jan 21, 2020Observed: 5.94 ft at 2:00PM Jan 21, 2020Observed: 5.96 ft at 2:15PM Jan 21, 2020Observed: 5.99 ft at 2:30PM Jan 21, 2020Observed: 5.98 ft at 2:45PM Jan 21, 2020Observed: 5.99 ft at 3:00PM Jan 21, 2020Observed: 5.98 ft at 3:15PM Jan 21, 2020Observed: 5.95 ft at 3:30PM Jan 21, 2020Observed: 5.98 ft at 3:45PM Jan 21, 2020Observed: 5.96 ft at 4:00PM Jan 21, 2020Observed: 5.98 ft at 4:15PM Jan 21, 2020Observed: 5.95 ft at 4:30PM Jan 21, 2020Observed: 6.01 ft at 4:45PM Jan 21, 2020Observed: 5.97 ft at 5:00PM Jan 21, 2020Observed: 5.98 ft at 5:15PM Jan 21, 2020Observed: 6.01 ft at 5:30PM Jan 21, 2020Observed: 5.97 ft at 5:45PM Jan 21, 2020Observed: 6.01 ft at 6:00PM Jan 21, 2020Observed: 5.97 ft at 6:15PM Jan 21, 2020Observed: 5.98 ft at 6:30PM Jan 21, 2020Observed: 6.03 ft at 6:45PM Jan 21, 2020Observed: 6 ft at 7:00PM Jan 21, 2020Observed: 6.02 ft at 7:15PM Jan 21, 2020Observed: 5.98 ft at 7:30PM Jan 21, 2020Observed: 6.02 ft at 7:45PM Jan 21, 2020Observed: 6.03 ft at 8:00PM Jan 21, 2020Observed: 6 ft at 8:15PM Jan 21, 2020Observed: 6.03 ft at 8:30PM Jan 21, 2020Observed: 5.97 ft at 8:45PM Jan 21, 2020Observed: 6.01 ft at 9:00PM Jan 21, 2020Observed: 6.01 ft at 9:15PM Jan 21, 2020Observed: 6 ft at 9:30PM Jan 21, 2020Observed: 6 ft at 9:45PM Jan 21, 2020Observed: 6.03 ft at 10:00PM Jan 21, 2020Observed: 6.02 ft at 10:15PM Jan 21, 2020Observed: 5.99 ft at 10:30PM Jan 21, 2020Observed: 6 ft at 10:45PM Jan 21, 2020Observed: 6.02 ft at 11:00PM Jan 21, 2020Observed: 6.02 ft at 11:15PM Jan 21, 2020Observed: 5.99 ft at 11:30PM Jan 21, 2020Observed: 5.99 ft at 11:45PM Jan 21, 2020Observed: 5.98 ft at 12:00AM Jan 22, 2020Observed: 6.02 ft at 12:15AM Jan 22, 2020Observed: 5.99 ft at 12:30AM Jan 22, 2020Observed: 6.01 ft at 12:45AM Jan 22, 2020Observed: 6.01 ft at 1:00AM Jan 22, 2020Observed: 5.99 ft at 1:15AM Jan 22, 2020Observed: 6.02 ft at 1:30AM Jan 22, 2020Observed: 6.02 ft at 1:45AM Jan 22, 2020Observed: 6 ft at 2:00AM Jan 22, 2020Observed: 6 ft at 2:01AM Jan 22, 2020Observed: 6 ft at 2:15AM Jan 22, 2020Observed: 6 ft at 2:16AM Jan 22, 2020Observed: 5.96 ft at 2:30AM Jan 22, 2020Observed: 5.96 ft at 2:31AM Jan 22, 2020Observed: 6 ft at 2:45AM Jan 22, 2020Observed: 5.97 ft at 3:00AM Jan 22, 2020Observed: 5.99 ft at 3:15AM Jan 22, 2020Observed: 6.01 ft at 3:30AM Jan 22, 2020Observed: 6.02 ft at 3:45AM Jan 22, 2020Observed: 6.01 ft at 4:15AM Jan 22, 2020Observed: 6.02 ft at 4:30AM Jan 22, 2020Observed: 5.97 ft at 4:45AM Jan 22, 2020Observed: 6.02 ft at 5:00AM Jan 22, 2020Observed: 6.01 ft at 5:15AM Jan 22, 2020Observed: 6 ft at 5:30AM Jan 22, 2020Observed: 5.99 ft at 5:45AM Jan 22, 2020Observed: 6.01 ft at 6:00AM Jan 22, 2020Observed: 6.02 ft at 6:15AM Jan 22, 2020Observed: 5.97 ft at 6:30AM Jan 22, 2020Observed: 6.01 ft at 6:45AM Jan 22, 2020Observed: 6 ft at 7:00AM Jan 22, 2020Observed: 5.99 ft at 7:15AM Jan 22, 2020Observed: 5.97 ft at 7:30AM Jan 22, 2020Observed: 5.98 ft at 7:45AM Jan 22, 2020Observed: 6.03 ft at 8:00AM Jan 22, 2020Observed: 6 ft at 8:15AM Jan 22, 2020Observed: 6 ft at 8:30AM Jan 22, 2020Observed: 6.03 ft at 8:45AM Jan 22, 2020Observed: 6.03 ft at 9:00AM Jan 22, 2020Observed: 5.98 ft at 9:15AM Jan 22, 2020Observed: 5.98 ft at 9:30AM Jan 22, 2020Observed: 6.03 ft at 9:45AM Jan 22, 2020Observed: 5.98 ft at 10:00AM Jan 22, 2020Observed: 5.98 ft at 10:01AM Jan 22, 2020Observed: 6.02 ft at 10:15AM Jan 22, 2020Observed: 6.02 ft at 10:16AM Jan 22, 2020Observed: 6.02 ft at 10:30AM Jan 22, 2020Observed: 6.02 ft at 10:31AM Jan 22, 2020Observed: 6.02 ft at 10:45AM Jan 22, 2020Observed: 5.98 ft at 11:00AM Jan 22, 2020Observed: 6 ft at 11:15AM Jan 22, 2020Observed: 6.02 ft at 11:30AM Jan 22, 2020Observed: 6.02 ft at 11:45AM Jan 22, 2020Observed: 6.02 ft at 12:00PM Jan 22, 2020Observed: 5.97 ft at 12:15PM Jan 22, 2020Observed: 6 ft at 12:30PM Jan 22, 2020Observed: 5.99 ft at 12:45PM Jan 22, 2020Observed: 6 ft at 1:00PM Jan 22, 2020Observed: 6.02 ft at 1:15PM Jan 22, 2020Observed: 6.03 ft at 1:30PM Jan 22, 2020Observed: 6.04 ft at 1:45PM Jan 22, 2020Observed: 6.01 ft at 2:00PM Jan 22, 2020Observed: 6.03 ft at 2:15PM Jan 22, 2020Observed: 6.02 ft at 2:30PM Jan 22, 2020Observed: 6.03 ft at 2:45PM Jan 22, 2020Observed: 5.99 ft at 3:00PM Jan 22, 2020Observed: 6.04 ft at 3:15PM Jan 22, 2020Observed: 5.98 ft at 3:30PM Jan 22, 2020Observed: 6.01 ft at 3:45PM Jan 22, 2020Observed: 6.02 ft at 4:00PM Jan 22, 2020Observed: 5.99 ft at 4:15PM Jan 22, 2020Observed: 6.04 ft at 4:30PM Jan 22, 2020Observed: 6.02 ft at 4:45PM Jan 22, 2020Observed: 6.03 ft at 5:00PM Jan 22, 2020Observed: 6.05 ft at 5:15PM Jan 22, 2020Observed: 6.03 ft at 5:30PM Jan 22, 2020Observed: 6.05 ft at 5:45PM Jan 22, 2020Observed: 6 ft at 6:00PM Jan 22, 2020Observed: 6 ft at 6:01PM Jan 22, 2020Observed: 6.04 ft at 6:15PM Jan 22, 2020Observed: 6.04 ft at 6:16PM Jan 22, 2020Observed: 6.02 ft at 6:30PM Jan 22, 2020Observed: 6.02 ft at 6:31PM Jan 22, 2020Observed: 6.01 ft at 6:45PM Jan 22, 2020Observed: 5.99 ft at 7:00PM Jan 22, 2020Observed: 6.01 ft at 7:15PM Jan 22, 2020Observed: 6.01 ft at 7:30PM Jan 22, 2020Observed: 6.02 ft at 7:45PM Jan 22, 2020Observed: 6.03 ft at 8:00PM Jan 22, 2020Observed: 6.02 ft at 8:15PM Jan 22, 2020Observed: 6.05 ft at 8:30PM Jan 22, 2020Observed: 6.03 ft at 8:45PM Jan 22, 2020Observed: 6.04 ft at 9:00PM Jan 22, 2020Observed: 6.02 ft at 9:15PM Jan 22, 2020Observed: 6.06 ft at 9:30PM Jan 22, 2020Observed: 6.04 ft at 9:45PM Jan 22, 2020Observed: 6.05 ft at 10:00PM Jan 22, 2020Observed: 6.01 ft at 10:15PM Jan 22, 2020Observed: 6.06 ft at 10:30PM Jan 22, 2020Observed: 6.03 ft at 10:45PM Jan 22, 2020Observed: 6.07 ft at 11:00PM Jan 22, 2020Observed: 6.01 ft at 11:15PM Jan 22, 2020Observed: 6.05 ft at 11:30PM Jan 22, 2020Observed: 6.04 ft at 11:45PM Jan 22, 2020Observed: 6.06 ft at 12:00AM Jan 23, 2020Observed: 6.02 ft at 12:15AM Jan 23, 2020Observed: 6 ft at 12:30AM Jan 23, 2020Observed: 6.02 ft at 12:45AM Jan 23, 2020Observed: 6.05 ft at 1:00AM Jan 23, 2020Observed: 6.03 ft at 1:15AM Jan 23, 2020Observed: 6.03 ft at 1:30AM Jan 23, 2020Observed: 6.04 ft at 1:45AM Jan 23, 2020Observed: 6.04 ft at 2:00AM Jan 23, 2020Observed: 6.03 ft at 2:15AM Jan 23, 2020Observed: 5.99 ft at 2:30AM Jan 23, 2020Observed: 6.01 ft at 2:45AM Jan 23, 2020Observed: 6.04 ft at 3:00AM Jan 23, 2020Observed: 6.02 ft at 3:15AM Jan 23, 2020Observed: 6.05 ft at 3:30AM Jan 23, 2020Observed: 6.01 ft at 3:45AM Jan 23, 2020Observed: 6.05 ft at 4:00AM Jan 23, 2020Observed: 6.03 ft at 4:15AM Jan 23, 2020Observed: 6.04 ft at 4:30AM Jan 23, 2020Observed: 6.03 ft at 4:45AM Jan 23, 2020Observed: 6.01 ft at 5:00AM Jan 23, 2020Observed: 6.04 ft at 5:15AM Jan 23, 2020Observed: 6.02 ft at 5:30AM Jan 23, 2020Observed: 6.04 ft at 5:45AM Jan 23, 2020Observed: 6.06 ft at 6:00AM Jan 23, 2020Observed: 6.05 ft at 6:15AM Jan 23, 2020Observed: 6.05 ft at 6:30AM Jan 23, 2020Observed: 6.02 ft at 6:45AM Jan 23, 2020Observed: 6.02 ft at 7:00AM Jan 23, 2020Observed: 5.99 ft at 7:15AM Jan 23, 2020Observed: 6.05 ft at 7:30AM Jan 23, 2020Observed: 6.01 ft at 8:00AM Jan 23, 2020Observed: 6.01 ft at 8:15AM Jan 23, 2020Observed: 6.01 ft at 8:30AM Jan 23, 2020Observed: 6.03 ft at 8:45AM Jan 23, 2020Observed: 6.01 ft at 9:00AM Jan 23, 2020Observed: 6 ft at 9:15AM Jan 23, 2020Observed: 6 ft at 9:30AM Jan 23, 2020Observed: 6.04 ft at 9:45AM Jan 23, 2020Observed: 6.02 ft at 10:00AM Jan 23, 2020Observed: 6.03 ft at 10:15AM Jan 23, 2020Observed: 6.04 ft at 10:30AM Jan 23, 2020Observed: 6.04 ft at 10:45AM Jan 23, 2020Observed: 6.02 ft at 11:00AM Jan 23, 2020Observed: 5.99 ft at 11:15AM Jan 23, 2020Observed: 6.01 ft at 11:30AM Jan 23, 2020Observed: 6 ft at 11:45AM Jan 23, 2020Observed: 6.03 ft at 12:00PM Jan 23, 2020Observed: 6.03 ft at 12:15PM Jan 23, 2020Observed: 6 ft at 12:30PM Jan 23, 2020Observed: 5.99 ft at 12:45PM Jan 23, 2020Observed: 6.01 ft at 1:00PM Jan 23, 2020Observed: 6.04 ft at 1:15PM Jan 23, 2020Observed: 5.98 ft at 1:30PM Jan 23, 2020Observed: 6.04 ft at 1:45PM Jan 23, 2020Observed: 6 ft at 2:00PM Jan 23, 2020Observed: 5.98 ft at 2:15PM Jan 23, 2020Observed: 6.02 ft at 2:30PM Jan 23, 2020Observed: 5.98 ft at 2:45PM Jan 23, 2020Observed: 6.03 ft at 3:00PM Jan 23, 2020Observed: 5.99 ft at 3:15PM Jan 23, 2020Observed: 6.01 ft at 3:30PM Jan 23, 2020Observed: 6 ft at 3:45PM Jan 23, 2020Observed: 6 ft at 4:00PM Jan 23, 2020Observed: 6 ft at 4:15PM Jan 23, 2020Observed: 6 ft at 4:30PM Jan 23, 2020Observed: 6 ft at 4:45PM Jan 23, 2020Observed: 6.02 ft at 5:00PM Jan 23, 2020Observed: 6.03 ft at 5:15PM Jan 23, 2020Observed: 6.02 ft at 5:30PM Jan 23, 2020Observed: 6.03 ft at 5:45PM Jan 23, 2020Observed: 6 ft at 6:00PM Jan 23, 2020Observed: 6 ft at 6:01PM Jan 23, 2020Observed: 6.04 ft at 6:15PM Jan 23, 2020Observed: 6.04 ft at 6:16PM Jan 23, 2020Observed: 6.03 ft at 6:30PM Jan 23, 2020Observed: 6.03 ft at 6:31PM Jan 23, 2020Observed: 6.02 ft at 6:45PM Jan 23, 2020Observed: 6.03 ft at 7:00PM Jan 23, 2020Observed: 5.98 ft at 7:15PM Jan 23, 2020Observed: 6.05 ft at 7:30PM Jan 23, 2020Observed: 6.04 ft at 7:45PM Jan 23, 2020Observed: 5.99 ft at 8:00PM Jan 23, 2020Observed: 6.01 ft at 8:15PM Jan 23, 2020Observed: 6.04 ft at 8:30PM Jan 23, 2020Observed: 6.04 ft at 8:45PM Jan 23, 2020Observed: 6.01 ft at 9:00PM Jan 23, 2020Observed: 6.04 ft at 9:15PM Jan 23, 2020Observed: 6 ft at 9:30PM Jan 23, 2020Observed: 6.02 ft at 9:45PM Jan 23, 2020Observed: 6 ft at 10:00PM Jan 23, 2020Observed: 6.01 ft at 10:15PM Jan 23, 2020Observed: 6.02 ft at 10:30PM Jan 23, 2020Observed: 6.03 ft at 10:45PM Jan 23, 2020Observed: 6.03 ft at 11:00PM Jan 23, 2020Observed: 6.01 ft at 11:15PM Jan 23, 2020Observed: 6.01 ft at 11:30PM Jan 23, 2020Observed: 5.99 ft at 11:45PM Jan 23, 2020Observed: 6 ft at 12:00AM Jan 24, 2020Observed: 6.04 ft at 12:15AM Jan 24, 2020Observed: 6.04 ft at 12:30AM Jan 24, 2020Observed: 6.03 ft at 12:45AM Jan 24, 2020Observed: 6.04 ft at 1:00AM Jan 24, 2020Observed: 6.03 ft at 1:15AM Jan 24, 2020Observed: 6.01 ft at 1:30AM Jan 24, 2020Observed: 6.02 ft at 1:45AM Jan 24, 2020Observed: 6.04 ft at 2:00AM Jan 24, 2020Observed: 6.04 ft at 2:01AM Jan 24, 2020Observed: 6.04 ft at 2:15AM Jan 24, 2020Observed: 6.04 ft at 2:16AM Jan 24, 2020Observed: 6 ft at 2:30AM Jan 24, 2020Observed: 6 ft at 2:31AM Jan 24, 2020Observed: 6.03 ft at 2:45AM Jan 24, 2020Observed: 6.04 ft at 3:00AM Jan 24, 2020Observed: 6 ft at 3:15AM Jan 24, 2020Observed: 6.04 ft at 3:30AM Jan 24, 2020Observed: 6.02 ft at 3:45AM Jan 24, 2020Observed: 6.03 ft at 4:00AM Jan 24, 2020Observed: 6 ft at 4:15AM Jan 24, 2020Observed: 6.04 ft at 4:30AM Jan 24, 2020Observed: 6.05 ft at 4:45AM Jan 24, 2020Observed: 6.04 ft at 5:00AM Jan 24, 2020Observed: 6.05 ft at 5:15AM Jan 24, 2020Observed: 6.01 ft at 5:30AM Jan 24, 2020Observed: 6.03 ft at 5:45AM Jan 24, 2020Observed: 6.02 ft at 6:00AM Jan 24, 2020Observed: 6.05 ft at 6:15AM Jan 24, 2020Observed: 6.06 ft at 6:30AM Jan 24, 2020Observed: 6.03 ft at 6:45AM Jan 24, 2020Observed: 6.01 ft at 7:00AM Jan 24, 2020Observed: 6.02 ft at 7:15AM Jan 24, 2020Observed: 6 ft at 7:30AM Jan 24, 2020Observed: 6.06 ft at 7:45AM Jan 24, 2020Observed: 6.02 ft at 8:00AM Jan 24, 2020Observed: 6.01 ft at 8:15AM Jan 24, 2020Observed: 6.04 ft at 8:30AM Jan 24, 2020Observed: 6.02 ft at 8:45AM Jan 24, 2020Observed: 6.03 ft at 9:00AM Jan 24, 2020Observed: 6.02 ft at 9:15AM Jan 24, 2020Observed: 6.05 ft at 9:30AM Jan 24, 2020Observed: 6.04 ft at 9:45AM Jan 24, 2020Observed: 6.05 ft at 10:00AM Jan 24, 2020Observed: 6.01 ft at 10:15AM Jan 24, 2020Observed: 6.01 ft at 10:16AM Jan 24, 2020Observed: 6.01 ft at 10:30AM Jan 24, 2020Observed: 6.01 ft at 10:31AM Jan 24, 2020Observed: 6.01 ft at 10:45AM Jan 24, 2020Observed: 6.01 ft at 10:46AM Jan 24, 2020Observed: 6.04 ft at 11:00AM Jan 24, 2020Observed: 6.02 ft at 11:15AM Jan 24, 2020Observed: 6.02 ft at 11:30AM Jan 24, 2020Observed: 6.02 ft at 11:45AM Jan 24, 2020Observed: 5.98 ft at 12:00PM Jan 24, 2020Observed: 5.99 ft at 12:15PM Jan 24, 2020Observed: 6.04 ft at 12:30PM Jan 24, 2020Observed: 5.99 ft at 12:45PM Jan 24, 2020Observed: 5.99 ft at 1:00PM Jan 24, 2020Observed: 6.02 ft at 1:15PM Jan 24, 2020Observed: 5.99 ft at 1:30PM Jan 24, 2020Observed: 6.06 ft at 1:45PM Jan 24, 2020Observed: 6.04 ft at 2:00PM Jan 24, 2020Observed: 6.05 ft at 2:15PM Jan 24, 2020Observed: 6.04 ft at 2:30PM Jan 24, 2020Observed: 6.04 ft at 2:45PM Jan 24, 2020Observed: 6.03 ft at 3:00PM Jan 24, 2020Observed: 6.03 ft at 3:15PM Jan 24, 2020Observed: 6.03 ft at 3:30PM Jan 24, 2020Observed: 6.01 ft at 3:45PM Jan 24, 2020Observed: 6.01 ft at 4:00PM Jan 24, 2020Observed: 6.03 ft at 4:15PM Jan 24, 2020Observed: 6.04 ft at 4:30PM Jan 24, 2020Observed: 6.03 ft at 4:45PM Jan 24, 2020Observed: 6.06 ft at 5:00PM Jan 24, 2020Observed: 6.04 ft at 5:15PM Jan 24, 2020Observed: 6.03 ft at 5:30PM Jan 24, 2020Observed: 6.05 ft at 5:45PM Jan 24, 2020Observed: 6.02 ft at 6:00PM Jan 24, 2020Observed: 6.04 ft at 6:15PM Jan 24, 2020Observed: 6.04 ft at 6:16PM Jan 24, 2020Observed: 6.03 ft at 6:30PM Jan 24, 2020Observed: 6.03 ft at 6:31PM Jan 24, 2020Observed: 6.06 ft at 6:45PM Jan 24, 2020Observed: 6.06 ft at 6:46PM Jan 24, 2020Observed: 5.99 ft at 7:00PM Jan 24, 2020Observed: 6.04 ft at 7:15PM Jan 24, 2020Observed: 6.05 ft at 7:30PM Jan 24, 2020Observed: 6.03 ft at 7:45PM Jan 24, 2020Observed: 6.01 ft at 8:00PM Jan 24, 2020Observed: 6.08 ft at 8:15PM Jan 24, 2020Observed: 6.01 ft at 8:30PM Jan 24, 2020Observed: 6.05 ft at 8:45PM Jan 24, 2020Observed: 6.03 ft at 9:00PM Jan 24, 2020Observed: 6.06 ft at 9:15PM Jan 24, 2020Observed: 6.02 ft at 9:30PM Jan 24, 2020Observed: 6.06 ft at 9:45PM Jan 24, 2020Observed: 6.02 ft at 10:00PM Jan 24, 2020Observed: 6.05 ft at 10:15PM Jan 24, 2020Observed: 6.07 ft at 10:30PM Jan 24, 2020Observed: 6.05 ft at 10:45PM Jan 24, 2020Observed: 6.06 ft at 11:00PM Jan 24, 2020Observed: 6.06 ft at 11:15PM Jan 24, 2020Observed: 6.07 ft at 11:30PM Jan 24, 2020Observed: 6.01 ft at 11:45PM Jan 24, 2020Observed: 6.01 ft at 12:00AM Jan 25, 2020Observed: 6.07 ft at 12:15AM Jan 25, 2020Observed: 6.04 ft at 12:30AM Jan 25, 2020Observed: 6.08 ft at 12:45AM Jan 25, 2020Observed: 6.07 ft at 1:00AM Jan 25, 2020Observed: 6.01 ft at 1:15AM Jan 25, 2020Observed: 6.07 ft at 1:30AM Jan 25, 2020Observed: 6.08 ft at 1:45AM Jan 25, 2020Observed: 6.03 ft at 2:00AM Jan 25, 2020Observed: 6.05 ft at 2:15AM Jan 25, 2020Observed: 6.05 ft at 2:16AM Jan 25, 2020Observed: 6.05 ft at 2:30AM Jan 25, 2020Observed: 6.05 ft at 2:31AM Jan 25, 2020Observed: 6.03 ft at 2:45AM Jan 25, 2020Observed: 6.03 ft at 2:46AM Jan 25, 2020Observed: 6.05 ft at 3:00AM Jan 25, 2020Observed: 6.07 ft at 3:15AM Jan 25, 2020Observed: 6.08 ft at 3:30AM Jan 25, 2020Observed: 6.06 ft at 3:45AM Jan 25, 2020Observed: 6.05 ft at 4:00AM Jan 25, 2020Observed: 6.06 ft at 4:15AM Jan 25, 2020Observed: 6.06 ft at 4:30AM Jan 25, 2020Observed: 6.08 ft at 4:45AM Jan 25, 2020Observed: 6.08 ft at 5:00AM Jan 25, 2020Observed: 6.03 ft at 5:15AM Jan 25, 2020Observed: 6.03 ft at 5:30AM Jan 25, 2020Observed: 6.04 ft at 5:45AM Jan 25, 2020Observed: 6.1 ft at 6:00AM Jan 25, 2020Observed: 6.07 ft at 6:15AM Jan 25, 2020Observed: 6.08 ft at 6:30AM Jan 25, 2020Observed: 6.09 ft at 6:45AM Jan 25, 2020Observed: 6.06 ft at 7:00AM Jan 25, 2020Observed: 6.08 ft at 7:15AM Jan 25, 2020Observed: 6.08 ft at 7:30AM Jan 25, 2020Observed: 6.08 ft at 7:45AM Jan 25, 2020Observed: 6.05 ft at 8:00AM Jan 25, 2020Observed: 6.04 ft at 8:15AM Jan 25, 2020Observed: 6.06 ft at 8:30AM Jan 25, 2020Observed: 6.1 ft at 8:45AM Jan 25, 2020Observed: 6.05 ft at 9:00AM Jan 25, 2020Observed: 6.06 ft at 9:15AM Jan 25, 2020Observed: 6.1 ft at 9:30AM Jan 25, 2020Observed: 6.07 ft at 9:45AM Jan 25, 2020Observed: 6.05 ft at 10:00AM Jan 25, 2020Observed: 6.06 ft at 10:15AM Jan 25, 2020Observed: 6.06 ft at 10:16AM Jan 25, 2020Observed: 6.06 ft at 10:30AM Jan 25, 2020Observed: 6.06 ft at 10:31AM Jan 25, 2020Observed: 6.09 ft at 10:45AM Jan 25, 2020Observed: 6.09 ft at 10:46AM Jan 25, 2020Observed: 6.06 ft at 11:00AM Jan 25, 2020Observed: 6.1 ft at 11:15AM Jan 25, 2020Observed: 6.1 ft at 11:30AM Jan 25, 2020Observed: 6.11 ft at 11:45AM Jan 25, 2020Observed: 6.05 ft at 12:00PM Jan 25, 2020Observed: 6.06 ft at 12:15PM Jan 25, 2020Observed: 6.1 ft at 12:30PM Jan 25, 2020Observed: 6.09 ft at 12:45PM Jan 25, 2020Observed: 6.04 ft at 1:00PM Jan 25, 2020Observed: 6.06 ft at 1:15PM Jan 25, 2020Observed: 6.09 ft at 1:30PM Jan 25, 2020Observed: 6.09 ft at 1:45PM Jan 25, 2020Observed: 6.09 ft at 2:00PM Jan 25, 2020Observed: 6.09 ft at 2:15PM Jan 25, 2020Observed: 6.06 ft at 2:30PM Jan 25, 2020Observed: 6.08 ft at 2:45PM Jan 25, 2020Observed: 6.08 ft at 3:00PM Jan 25, 2020Observed: 6.08 ft at 3:15PM Jan 25, 2020Observed: 6.1 ft at 3:30PM Jan 25, 2020Observed: 6.06 ft at 3:45PM Jan 25, 2020Observed: 6.11 ft at 4:00PM Jan 25, 2020Observed: 6.12 ft at 4:15PM Jan 25, 2020Observed: 6.13 ft at 4:30PM Jan 25, 2020Observed: 6.06 ft at 4:45PM Jan 25, 2020Observed: 6.11 ft at 5:00PM Jan 25, 2020Observed: 6.12 ft at 5:15PM Jan 25, 2020Observed: 6.11 ft at 5:30PM Jan 25, 2020Observed: 6.12 ft at 5:45PM Jan 25, 2020Observed: 6.11 ft at 6:00PM Jan 25, 2020Observed: 6.09 ft at 6:15PM Jan 25, 2020Observed: 6.09 ft at 6:16PM Jan 25, 2020Observed: 6.12 ft at 6:30PM Jan 25, 2020Observed: 6.12 ft at 6:31PM Jan 25, 2020Observed: 6.12 ft at 6:45PM Jan 25, 2020Observed: 6.12 ft at 6:46PM Jan 25, 2020Observed: 6.12 ft at 7:00PM Jan 25, 2020Observed: 6.13 ft at 7:15PM Jan 25, 2020Observed: 6.13 ft at 7:30PM Jan 25, 2020Observed: 6.11 ft at 7:45PM Jan 25, 2020Observed: 6.13 ft at 8:00PM Jan 25, 2020Observed: 6.1 ft at 8:15PM Jan 25, 2020Observed: 6.13 ft at 8:30PM Jan 25, 2020Observed: 6.11 ft at 8:45PM Jan 25, 2020Observed: 6.12 ft at 9:00PM Jan 25, 2020Observed: 6.11 ft at 9:15PM Jan 25, 2020Observed: 6.15 ft at 9:30PM Jan 25, 2020Observed: 6.13 ft at 9:45PM Jan 25, 2020Observed: 6.13 ft at 10:00PM Jan 25, 2020Observed: 6.1 ft at 10:15PM Jan 25, 2020Observed: 6.11 ft at 10:30PM Jan 25, 2020Observed: 6.12 ft at 10:45PM Jan 25, 2020Observed: 6.1 ft at 11:00PM Jan 25, 2020Observed: 6.13 ft at 11:15PM Jan 25, 2020Observed: 6.13 ft at 11:30PM Jan 25, 2020Observed: 6.07 ft at 11:45PM Jan 25, 2020Observed: 6.12 ft at 12:00AM Jan 26, 2020Observed: 6.1 ft at 12:15AM Jan 26, 2020Observed: 6.15 ft at 12:30AM Jan 26, 2020Observed: 6.11 ft at 12:45AM Jan 26, 2020Observed: 6.13 ft at 1:00AM Jan 26, 2020Observed: 6.13 ft at 1:15AM Jan 26, 2020Observed: 6.15 ft at 1:30AM Jan 26, 2020Observed: 6.14 ft at 1:45AM Jan 26, 2020Observed: 6.15 ft at 2:00AM Jan 26, 2020Observed: 6.1 ft at 2:15AM Jan 26, 2020Observed: 6.1 ft at 2:16AM Jan 26, 2020Observed: 6.14 ft at 2:30AM Jan 26, 2020Observed: 6.14 ft at 2:31AM Jan 26, 2020Observed: 6.15 ft at 2:45AM Jan 26, 2020Observed: 6.15 ft at 2:46AM Jan 26, 2020Observed: 6.12 ft at 3:00AM Jan 26, 2020Observed: 6.13 ft at 3:15AM Jan 26, 2020Observed: 6.13 ft at 3:30AM Jan 26, 2020Observed: 6.15 ft at 3:45AM Jan 26, 2020Observed: 6.13 ft at 4:00AM Jan 26, 2020Observed: 6.15 ft at 4:15AM Jan 26, 2020Observed: 6.12 ft at 4:30AM Jan 26, 2020Observed: 6.16 ft at 4:45AM Jan 26, 2020USGS--Water Resources of the United StatesBRKS2(plotting HGIRG) Graph Created (5:03AM Jan 26, 2020)ObservedLatest observed value: 6.16 ft at 4:45 AM CST 26-Jan-2020. Flood Stage is 9 ft
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Tabular Data (UTC)
Tabular Data (CST)
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Datum: Not Available
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 near Brookings are issued as needed during times of high water, but are not routinely available.

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Upstream Gauge - near Medary Upstream Gauge Downstream Gauge Downstream Gauge - above Flandreau
Flood Categories (in feet)
Major Flood Stage: 12
Moderate Flood Stage: 10.5
Flood Stage: 9
Action Stage: 8
Low Stage (in feet): -9999

Historic Crests
(1) 14.77 ft on 04/09/1969
(2) 13.70 ft on 06/22/1984
(3) 13.66 ft on 09/25/2010
(4) 13.50 ft on 07/04/1993
(5) 13.33 ft on 03/24/2011
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 13.11 ft on 03/22/2019 (P)
(2) 12.30 ft on 04/24/2018
(3) 7.40 ft on 05/25/2017
(4) 5.53 ft on 06/19/2016
(5) 6.54 ft on 08/22/2015
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
16 The bridges on 473rd Avenue and 475th Avenue are overtopped.
14 The water reaches the bottom of the bridges on 473rd Avenue and 475th Avenue.
13 The bridge 1 mile south of Medary on 471st Avenue is overtopped.
12 475th Avenue and 222nd Street being to flood.
11.7 473rd Avenue at 221st Street begins to flood.
11 Some farm outbuildings begin to flood.
10.3 473rd Avenue north of the gauge begins to flood.
10 Flooding begins to affect agricultural lands along the right bank of the river.
9 Significant amounts of pasture and farm lands begin flooding on the left bank of the river. The road south of the Brookings water treatment plant is flooded, as is 217th Street between 468th and 469th Avenues.
8 There is some minor overflow of the lowest banks along this stretch of the river.
Photos
(1) Upstream View
(2) Downstream View
About This Location Collapse

Latitude: 44.180278° N, Longitude: 96.749167° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame		 Gauge Height Flood Stage Uses
NWS stage 0 ft 9 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 Not Available Not Available 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 1551.91 ft 1560.91 ft  

Current/Historical Observations:
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The National Weather Service prepares its forecasts and other services in collaboration with agencies like the US Geological Survey, US Bureau of Reclamation, US Army Corps of Engineers, Natural Resource Conservation Service, National Park Service, ALERT Users Group, Bureau of Indian Affairs, and many state and local emergency managers across the country. For details, please click here.
NWS Information
National Weather Service
Sioux Falls Weather Forecast Office
26 Weather Lane
Sioux Falls, SD 57104-0198
(605) 330-4247
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