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Hydrograph River at a Glance Download
Big Sioux River near Brookings Stage (ft)Flow (cfs)Observed: 9.14 ft at 2:00AM Jun 19, 2019Highest Observation: 9.17 ft at 2:15AM Jun 19, 2019Observed: 9.16 ft at 2:30AM Jun 19, 2019Observed: 9.14 ft at 2:45AM Jun 19, 2019Observed: 9.14 ft at 3:00AM Jun 19, 2019Observed: 9.15 ft at 3:15AM Jun 19, 2019Observed: 9.16 ft at 3:30AM Jun 19, 2019Observed: 9.15 ft at 3:45AM Jun 19, 2019Observed: 9.16 ft at 4:00AM Jun 19, 2019Observed: 9.13 ft at 4:15AM Jun 19, 2019Observed: 9.15 ft at 4:30AM Jun 19, 2019Observed: 9.13 ft at 4:45AM Jun 19, 2019Observed: 9.13 ft at 4:46AM Jun 19, 2019Observed: 9.14 ft at 5:00AM Jun 19, 2019Observed: 9.14 ft at 5:01AM Jun 19, 2019Observed: 9.12 ft at 5:15AM Jun 19, 2019Observed: 9.12 ft at 5:16AM Jun 19, 2019Observed: 9.11 ft at 5:30AM Jun 19, 2019Observed: 9.12 ft at 5:45AM Jun 19, 2019Observed: 9.11 ft at 6:00AM Jun 19, 2019Observed: 9.11 ft at 6:15AM Jun 19, 2019Observed: 9.09 ft at 6:30AM Jun 19, 2019Observed: 9.1 ft at 6:45AM Jun 19, 2019Observed: 9.09 ft at 7:00AM Jun 19, 2019Observed: 9.11 ft at 7:15AM Jun 19, 2019Observed: 9.08 ft at 7:30AM Jun 19, 2019Observed: 9.1 ft at 7:45AM Jun 19, 2019Observed: 9.1 ft at 8:00AM Jun 19, 2019Observed: 9.08 ft at 8:15AM Jun 19, 2019Observed: 9.09 ft at 8:30AM Jun 19, 2019Observed: 9.07 ft at 8:45AM Jun 19, 2019Observed: 9.09 ft at 9:00AM Jun 19, 2019Observed: 9.07 ft at 9:15AM Jun 19, 2019Observed: 9.09 ft at 9:30AM Jun 19, 2019Observed: 9.07 ft at 9:45AM Jun 19, 2019Observed: 9.09 ft at 10:00AM Jun 19, 2019Observed: 9.06 ft at 10:15AM Jun 19, 2019Observed: 9.05 ft at 10:30AM Jun 19, 2019Observed: 9.05 ft at 10:45AM Jun 19, 2019Observed: 9.07 ft at 11:00AM Jun 19, 2019Observed: 9.06 ft at 11:15AM Jun 19, 2019Observed: 9.06 ft at 11:30AM Jun 19, 2019Observed: 9.08 ft at 11:45AM Jun 19, 2019Observed: 9.06 ft at 12:00PM Jun 19, 2019Observed: 9.05 ft at 12:15PM Jun 19, 2019Observed: 9.03 ft at 12:30PM Jun 19, 2019Observed: 9.05 ft at 12:45PM Jun 19, 2019Observed: 9.05 ft at 12:46PM Jun 19, 2019Observed: 9.06 ft at 1:00PM Jun 19, 2019Observed: 9.06 ft at 1:01PM Jun 19, 2019Observed: 9.04 ft at 1:15PM Jun 19, 2019Observed: 9.04 ft at 1:16PM Jun 19, 2019Observed: 9.03 ft at 1:30PM Jun 19, 2019Observed: 9.06 ft at 1:45PM Jun 19, 2019Observed: 9.01 ft at 2:00PM Jun 19, 2019Observed: 9.02 ft at 2:15PM Jun 19, 2019Observed: 9.04 ft at 2:30PM Jun 19, 2019Observed: 9.01 ft at 2:45PM Jun 19, 2019Observed: 9.01 ft at 3:00PM Jun 19, 2019Observed: 9.01 ft at 3:15PM Jun 19, 2019Observed: 9.03 ft at 3:30PM Jun 19, 2019Observed: 9.02 ft at 3:45PM Jun 19, 2019Observed: 9.02 ft at 4:00PM Jun 19, 2019Observed: 9.03 ft at 4:15PM Jun 19, 2019Observed: 9.02 ft at 4:30PM Jun 19, 2019Observed: 9 ft at 4:45PM Jun 19, 2019Observed: 9 ft at 5:00PM Jun 19, 2019Observed: 9.01 ft at 5:15PM Jun 19, 2019Observed: 8.97 ft at 5:30PM Jun 19, 2019Observed: 9 ft at 5:45PM Jun 19, 2019Observed: 8.98 ft at 6:00PM Jun 19, 2019Observed: 8.97 ft at 6:15PM Jun 19, 2019Observed: 8.98 ft at 6:30PM Jun 19, 2019Observed: 8.98 ft at 6:45PM Jun 19, 2019Observed: 8.98 ft at 7:00PM Jun 19, 2019Observed: 9 ft at 7:15PM Jun 19, 2019Observed: 8.98 ft at 7:30PM Jun 19, 2019Observed: 8.98 ft at 7:45PM Jun 19, 2019Observed: 8.99 ft at 8:00PM Jun 19, 2019Observed: 8.99 ft at 8:15PM Jun 19, 2019Observed: 8.98 ft at 8:30PM Jun 19, 2019Observed: 8.98 ft at 8:45PM Jun 19, 2019Observed: 8.98 ft at 8:46PM Jun 19, 2019Observed: 8.97 ft at 9:00PM Jun 19, 2019Observed: 8.97 ft at 9:01PM Jun 19, 2019Observed: 8.95 ft at 9:15PM Jun 19, 2019Observed: 8.95 ft at 9:16PM Jun 19, 2019Observed: 8.98 ft at 9:30PM Jun 19, 2019Observed: 8.96 ft at 9:45PM Jun 19, 2019Observed: 8.93 ft at 10:00PM Jun 19, 2019Observed: 8.94 ft at 10:15PM Jun 19, 2019Observed: 8.97 ft at 10:30PM Jun 19, 2019Observed: 8.96 ft at 10:45PM Jun 19, 2019Observed: 8.95 ft at 11:00PM Jun 19, 2019Observed: 8.94 ft at 11:15PM Jun 19, 2019Observed: 8.94 ft at 11:30PM Jun 19, 2019Observed: 8.93 ft at 11:45PM Jun 19, 2019Observed: 8.94 ft at 12:00AM Jun 20, 2019Observed: 8.93 ft at 12:15AM Jun 20, 2019Observed: 8.93 ft at 12:30AM Jun 20, 2019Observed: 8.92 ft at 12:45AM Jun 20, 2019Observed: 8.92 ft at 1:00AM Jun 20, 2019Observed: 8.92 ft at 1:15AM Jun 20, 2019Observed: 8.93 ft at 1:30AM Jun 20, 2019Observed: 8.92 ft at 1:45AM Jun 20, 2019Observed: 8.92 ft at 2:00AM Jun 20, 2019Observed: 8.93 ft at 2:15AM Jun 20, 2019Observed: 8.91 ft at 2:30AM Jun 20, 2019Observed: 8.89 ft at 2:45AM Jun 20, 2019Observed: 8.92 ft at 3:00AM Jun 20, 2019Observed: 8.91 ft at 3:15AM Jun 20, 2019Observed: 8.9 ft at 3:30AM Jun 20, 2019Observed: 8.91 ft at 3:45AM Jun 20, 2019Observed: 8.89 ft at 4:00AM Jun 20, 2019Observed: 8.9 ft at 4:15AM Jun 20, 2019Observed: 8.87 ft at 4:30AM Jun 20, 2019Observed: 8.88 ft at 4:45AM Jun 20, 2019Observed: 8.88 ft at 4:46AM Jun 20, 2019Observed: 8.88 ft at 5:00AM Jun 20, 2019Observed: 8.88 ft at 5:01AM Jun 20, 2019Observed: 8.91 ft at 5:15AM Jun 20, 2019Observed: 8.91 ft at 5:16AM Jun 20, 2019Observed: 8.9 ft at 5:30AM Jun 20, 2019Observed: 8.9 ft at 5:45AM Jun 20, 2019Observed: 8.86 ft at 6:00AM Jun 20, 2019Observed: 8.84 ft at 6:15AM Jun 20, 2019Observed: 8.88 ft at 6:30AM Jun 20, 2019Observed: 8.86 ft at 6:45AM Jun 20, 2019Observed: 8.87 ft at 7:00AM Jun 20, 2019Observed: 8.89 ft at 7:15AM Jun 20, 2019Observed: 8.87 ft at 7:30AM Jun 20, 2019Observed: 8.88 ft at 7:45AM Jun 20, 2019Observed: 8.88 ft at 8:00AM Jun 20, 2019Observed: 8.87 ft at 8:15AM Jun 20, 2019Observed: 8.88 ft at 8:30AM Jun 20, 2019Observed: 8.87 ft at 8:45AM Jun 20, 2019Observed: 8.85 ft at 9:00AM Jun 20, 2019Observed: 8.87 ft at 9:15AM Jun 20, 2019Observed: 8.87 ft at 9:30AM Jun 20, 2019Observed: 8.87 ft at 9:45AM Jun 20, 2019Observed: 8.87 ft at 10:00AM Jun 20, 2019Observed: 8.86 ft at 10:15AM Jun 20, 2019Observed: 8.85 ft at 10:30AM Jun 20, 2019Observed: 8.85 ft at 10:45AM Jun 20, 2019Observed: 8.87 ft at 11:00AM Jun 20, 2019Observed: 8.86 ft at 11:15AM Jun 20, 2019Observed: 8.87 ft at 11:30AM Jun 20, 2019Observed: 8.85 ft at 11:45AM Jun 20, 2019Observed: 8.84 ft at 12:00PM Jun 20, 2019Observed: 8.87 ft at 12:15PM Jun 20, 2019Observed: 8.85 ft at 12:30PM Jun 20, 2019Observed: 8.86 ft at 12:45PM Jun 20, 2019Observed: 8.86 ft at 12:46PM Jun 20, 2019Observed: 8.86 ft at 1:00PM Jun 20, 2019Observed: 8.86 ft at 1:01PM Jun 20, 2019Observed: 8.84 ft at 1:15PM Jun 20, 2019Observed: 8.84 ft at 1:16PM Jun 20, 2019Observed: 8.85 ft at 1:30PM Jun 20, 2019Observed: 8.84 ft at 1:45PM Jun 20, 2019Observed: 8.83 ft at 2:00PM Jun 20, 2019Observed: 8.83 ft at 2:15PM Jun 20, 2019Observed: 8.83 ft at 2:30PM Jun 20, 2019Observed: 8.8 ft at 2:45PM Jun 20, 2019Observed: 8.81 ft at 3:00PM Jun 20, 2019Observed: 8.81 ft at 3:15PM Jun 20, 2019Observed: 8.82 ft at 3:30PM Jun 20, 2019Observed: 8.79 ft at 3:45PM Jun 20, 2019Observed: 8.8 ft at 4:00PM Jun 20, 2019Observed: 8.8 ft at 4:15PM Jun 20, 2019Observed: 8.78 ft at 4:30PM Jun 20, 2019Observed: 8.77 ft at 4:45PM Jun 20, 2019Observed: 8.77 ft at 5:00PM Jun 20, 2019Observed: 8.77 ft at 5:15PM Jun 20, 2019Observed: 8.78 ft at 5:30PM Jun 20, 2019Observed: 8.78 ft at 5:45PM Jun 20, 2019Observed: 8.75 ft at 6:00PM Jun 20, 2019Observed: 8.78 ft at 6:15PM Jun 20, 2019Observed: 8.76 ft at 6:30PM Jun 20, 2019Observed: 8.78 ft at 6:45PM Jun 20, 2019Observed: 8.76 ft at 7:00PM Jun 20, 2019Observed: 8.76 ft at 7:15PM Jun 20, 2019Observed: 8.78 ft at 7:30PM Jun 20, 2019Observed: 8.76 ft at 7:45PM Jun 20, 2019Observed: 8.76 ft at 8:00PM Jun 20, 2019Observed: 8.77 ft at 8:15PM Jun 20, 2019Observed: 8.75 ft at 8:30PM Jun 20, 2019Observed: 8.78 ft at 8:45PM Jun 20, 2019Observed: 8.78 ft at 9:00PM Jun 20, 2019Observed: 8.78 ft at 9:01PM Jun 20, 2019Observed: 8.76 ft at 9:15PM Jun 20, 2019Observed: 8.76 ft at 9:16PM Jun 20, 2019Observed: 8.76 ft at 9:30PM Jun 20, 2019Observed: 8.76 ft at 9:31PM Jun 20, 2019Observed: 8.75 ft at 9:45PM Jun 20, 2019Observed: 8.77 ft at 10:00PM Jun 20, 2019Observed: 8.75 ft at 10:15PM Jun 20, 2019Observed: 8.75 ft at 10:30PM Jun 20, 2019Observed: 8.73 ft at 10:45PM Jun 20, 2019Observed: 8.76 ft at 11:00PM Jun 20, 2019Observed: 8.74 ft at 11:15PM Jun 20, 2019Observed: 8.74 ft at 11:30PM Jun 20, 2019Observed: 8.73 ft at 11:45PM Jun 20, 2019Observed: 8.75 ft at 12:00AM Jun 21, 2019Observed: 8.74 ft at 12:15AM Jun 21, 2019Observed: 8.74 ft at 12:30AM Jun 21, 2019Observed: 8.75 ft at 12:45AM Jun 21, 2019Observed: 8.73 ft at 1:00AM Jun 21, 2019Observed: 8.73 ft at 1:15AM Jun 21, 2019Observed: 8.72 ft at 1:30AM Jun 21, 2019Observed: 8.74 ft at 1:45AM Jun 21, 2019Observed: 8.72 ft at 2:00AM Jun 21, 2019Observed: 8.73 ft at 2:15AM Jun 21, 2019Observed: 8.73 ft at 2:30AM Jun 21, 2019Observed: 8.72 ft at 2:45AM Jun 21, 2019Observed: 8.74 ft at 3:00AM Jun 21, 2019Observed: 8.72 ft at 3:15AM Jun 21, 2019Observed: 8.73 ft at 3:30AM Jun 21, 2019Observed: 8.74 ft at 3:45AM Jun 21, 2019Observed: 8.72 ft at 4:00AM Jun 21, 2019Observed: 8.72 ft at 4:15AM Jun 21, 2019Observed: 8.73 ft at 4:30AM Jun 21, 2019Observed: 8.73 ft at 4:45AM Jun 21, 2019Observed: 8.73 ft at 5:00AM Jun 21, 2019Observed: 8.73 ft at 5:01AM Jun 21, 2019Observed: 8.71 ft at 5:15AM Jun 21, 2019Observed: 8.71 ft at 5:16AM Jun 21, 2019Observed: 8.71 ft at 5:30AM Jun 21, 2019Observed: 8.71 ft at 5:31AM Jun 21, 2019Observed: 8.72 ft at 5:45AM Jun 21, 2019Observed: 8.71 ft at 6:00AM Jun 21, 2019Observed: 8.71 ft at 6:15AM Jun 21, 2019Observed: 8.72 ft at 6:30AM Jun 21, 2019Observed: 8.72 ft at 6:45AM Jun 21, 2019Observed: 8.7 ft at 7:00AM Jun 21, 2019Observed: 8.69 ft at 7:15AM Jun 21, 2019Observed: 8.72 ft at 7:30AM Jun 21, 2019Observed: 8.7 ft at 7:45AM Jun 21, 2019Observed: 8.71 ft at 8:00AM Jun 21, 2019Observed: 8.7 ft at 8:15AM Jun 21, 2019Observed: 8.7 ft at 8:30AM Jun 21, 2019Observed: 8.7 ft at 8:45AM Jun 21, 2019Observed: 8.71 ft at 9:00AM Jun 21, 2019Observed: 8.69 ft at 9:15AM Jun 21, 2019Observed: 8.7 ft at 9:30AM Jun 21, 2019Observed: 8.69 ft at 9:45AM Jun 21, 2019Observed: 8.69 ft at 10:00AM Jun 21, 2019Observed: 8.69 ft at 10:15AM Jun 21, 2019Observed: 8.69 ft at 10:30AM Jun 21, 2019Observed: 8.67 ft at 10:45AM Jun 21, 2019Observed: 8.7 ft at 11:00AM Jun 21, 2019Observed: 8.69 ft at 11:15AM Jun 21, 2019Observed: 8.67 ft at 11:30AM Jun 21, 2019Observed: 8.69 ft at 11:45AM Jun 21, 2019Observed: 8.69 ft at 12:00PM Jun 21, 2019Observed: 8.66 ft at 12:15PM Jun 21, 2019Observed: 8.68 ft at 12:30PM Jun 21, 2019Observed: 8.69 ft at 12:45PM Jun 21, 2019Observed: 8.68 ft at 1:00PM Jun 21, 2019Observed: 8.66 ft at 1:15PM Jun 21, 2019Observed: 8.68 ft at 1:30PM Jun 21, 2019Observed: 8.69 ft at 1:45PM Jun 21, 2019Observed: 8.66 ft at 2:00PM Jun 21, 2019Observed: 8.67 ft at 2:15PM Jun 21, 2019Observed: 8.67 ft at 2:30PM Jun 21, 2019Observed: 8.68 ft at 2:45PM Jun 21, 2019Observed: 8.67 ft at 3:00PM Jun 21, 2019Observed: 8.65 ft at 3:15PM Jun 21, 2019Observed: 8.66 ft at 3:30PM Jun 21, 2019Observed: 8.65 ft at 3:45PM Jun 21, 2019Observed: 8.66 ft at 4:00PM Jun 21, 2019Observed: 8.67 ft at 4:15PM Jun 21, 2019Observed: 8.66 ft at 4:30PM Jun 21, 2019Observed: 8.65 ft at 4:45PM Jun 21, 2019Observed: 8.65 ft at 5:00PM Jun 21, 2019Observed: 8.64 ft at 5:15PM Jun 21, 2019Observed: 8.64 ft at 5:30PM Jun 21, 2019Observed: 8.64 ft at 5:45PM Jun 21, 2019Observed: 8.63 ft at 6:00PM Jun 21, 2019Observed: 8.64 ft at 6:15PM Jun 21, 2019Observed: 8.62 ft at 6:30PM Jun 21, 2019Observed: 8.64 ft at 6:45PM Jun 21, 2019Observed: 8.61 ft at 7:00PM Jun 21, 2019Observed: 8.61 ft at 7:15PM Jun 21, 2019Observed: 8.61 ft at 7:30PM Jun 21, 2019Observed: 8.61 ft at 7:45PM Jun 21, 2019Observed: 8.62 ft at 8:00PM Jun 21, 2019Observed: 8.59 ft at 8:15PM Jun 21, 2019Observed: 8.6 ft at 8:30PM Jun 21, 2019Observed: 8.62 ft at 8:45PM Jun 21, 2019Observed: 8.61 ft at 9:00PM Jun 21, 2019Observed: 8.61 ft at 9:01PM Jun 21, 2019Observed: 8.59 ft at 9:15PM Jun 21, 2019Observed: 8.59 ft at 9:16PM Jun 21, 2019Observed: 8.6 ft at 9:30PM Jun 21, 2019Observed: 8.6 ft at 9:31PM Jun 21, 2019Observed: 8.63 ft at 9:45PM Jun 21, 2019Observed: 8.62 ft at 10:00PM Jun 21, 2019Observed: 8.6 ft at 10:15PM Jun 21, 2019Observed: 8.6 ft at 10:30PM Jun 21, 2019Observed: 8.61 ft at 10:45PM Jun 21, 2019Observed: 8.58 ft at 11:00PM Jun 21, 2019Observed: 8.6 ft at 11:15PM Jun 21, 2019Observed: 8.6 ft at 11:30PM Jun 21, 2019Observed: 8.6 ft at 11:45PM Jun 21, 2019Observed: 8.6 ft at 12:00AM Jun 22, 2019Observed: 8.61 ft at 12:15AM Jun 22, 2019Observed: 8.58 ft at 12:30AM Jun 22, 2019Observed: 8.6 ft at 12:45AM Jun 22, 2019Observed: 8.57 ft at 1:00AM Jun 22, 2019Observed: 8.58 ft at 1:15AM Jun 22, 2019Observed: 8.58 ft at 1:30AM Jun 22, 2019Observed: 8.56 ft at 1:45AM Jun 22, 2019Observed: 8.6 ft at 2:00AM Jun 22, 2019Observed: 8.57 ft at 2:15AM Jun 22, 2019Observed: 8.57 ft at 2:30AM Jun 22, 2019Observed: 8.57 ft at 2:45AM Jun 22, 2019Observed: 8.57 ft at 3:00AM Jun 22, 2019Observed: 8.57 ft at 3:15AM Jun 22, 2019Observed: 8.58 ft at 3:30AM Jun 22, 2019Observed: 8.56 ft at 3:45AM Jun 22, 2019Observed: 8.56 ft at 4:00AM Jun 22, 2019Observed: 8.54 ft at 4:15AM Jun 22, 2019Observed: 8.56 ft at 4:30AM Jun 22, 2019Observed: 8.55 ft at 4:45AM Jun 22, 2019Observed: 8.56 ft at 5:00AM Jun 22, 2019Observed: 8.56 ft at 5:15AM Jun 22, 2019Observed: 8.55 ft at 5:30AM Jun 22, 2019Observed: 8.56 ft at 5:45AM Jun 22, 2019Observed: 8.56 ft at 6:00AM Jun 22, 2019Observed: 8.55 ft at 6:15AM Jun 22, 2019Observed: 8.54 ft at 6:30AM Jun 22, 2019Observed: 8.55 ft at 6:45AM Jun 22, 2019Observed: 8.54 ft at 7:00AM Jun 22, 2019Observed: 8.54 ft at 7:15AM Jun 22, 2019Observed: 8.54 ft at 7:30AM Jun 22, 2019Observed: 8.53 ft at 7:45AM Jun 22, 2019Observed: 8.53 ft at 8:00AM Jun 22, 2019Observed: 8.53 ft at 8:15AM Jun 22, 2019Observed: 8.53 ft at 8:30AM Jun 22, 2019Observed: 8.53 ft at 8:45AM Jun 22, 2019Observed: 8.51 ft at 9:00AM Jun 22, 2019Observed: 8.53 ft at 9:15AM Jun 22, 2019Observed: 8.52 ft at 9:30AM Jun 22, 2019Observed: 8.52 ft at 9:45AM Jun 22, 2019Observed: 8.53 ft at 10:00AM Jun 22, 2019Observed: 8.52 ft at 10:15AM Jun 22, 2019Observed: 8.51 ft at 10:30AM Jun 22, 2019Observed: 8.52 ft at 10:45AM Jun 22, 2019Observed: 8.51 ft at 11:00AM Jun 22, 2019Observed: 8.52 ft at 11:15AM Jun 22, 2019Observed: 8.52 ft at 11:30AM Jun 22, 2019Observed: 8.5 ft at 11:45AM Jun 22, 2019Observed: 8.51 ft at 12:00PM Jun 22, 2019Observed: 8.49 ft at 12:15PM Jun 22, 2019Observed: 8.49 ft at 12:30PM Jun 22, 2019Observed: 8.46 ft at 12:45PM Jun 22, 2019Observed: 8.5 ft at 1:00PM Jun 22, 2019Observed: 8.49 ft at 1:15PM Jun 22, 2019Observed: 8.48 ft at 1:30PM Jun 22, 2019Observed: 8.47 ft at 1:45PM Jun 22, 2019Observed: 8.45 ft at 2:00PM Jun 22, 2019Observed: 8.49 ft at 2:15PM Jun 22, 2019Observed: 8.49 ft at 2:30PM Jun 22, 2019Observed: 8.48 ft at 2:45PM Jun 22, 2019Observed: 8.47 ft at 3:00PM Jun 22, 2019Observed: 8.48 ft at 3:15PM Jun 22, 2019Observed: 8.47 ft at 3:30PM Jun 22, 2019Observed: 8.45 ft at 3:45PM Jun 22, 2019Observed: 8.47 ft at 4:00PM Jun 22, 2019Observed: 8.48 ft at 4:15PM Jun 22, 2019Observed: 8.46 ft at 4:30PM Jun 22, 2019Observed: 8.43 ft at 4:45PM Jun 22, 2019Observed: 8.46 ft at 5:00PM Jun 22, 2019Observed: 8.46 ft at 5:15PM Jun 22, 2019Observed: 8.43 ft at 5:30PM Jun 22, 2019Observed: 8.45 ft at 5:45PM Jun 22, 2019Observed: 8.45 ft at 6:00PM Jun 22, 2019Observed: 8.45 ft at 6:15PM Jun 22, 2019Observed: 8.42 ft at 6:30PM Jun 22, 2019Observed: 8.43 ft at 6:45PM Jun 22, 2019Observed: 8.44 ft at 7:00PM Jun 22, 2019Observed: 8.45 ft at 7:15PM Jun 22, 2019Observed: 8.43 ft at 7:30PM Jun 22, 2019Observed: 8.44 ft at 7:45PM Jun 22, 2019Observed: 8.43 ft at 8:00PM Jun 22, 2019Observed: 8.44 ft at 8:15PM Jun 22, 2019Observed: 8.44 ft at 8:30PM Jun 22, 2019Observed: 8.43 ft at 8:45PM Jun 22, 2019Observed: 8.44 ft at 9:00PM Jun 22, 2019Observed: 8.42 ft at 9:15PM Jun 22, 2019Observed: 8.43 ft at 9:30PM Jun 22, 2019Observed: 8.44 ft at 9:45PM Jun 22, 2019Observed: 8.45 ft at 10:00PM Jun 22, 2019Observed: 8.44 ft at 10:15PM Jun 22, 2019Observed: 8.42 ft at 10:30PM Jun 22, 2019Observed: 8.45 ft at 10:45PM Jun 22, 2019Observed: 8.43 ft at 11:00PM Jun 22, 2019Observed: 8.43 ft at 11:15PM Jun 22, 2019Observed: 8.41 ft at 11:30PM Jun 22, 2019Observed: 8.4 ft at 11:45PM Jun 22, 2019Observed: 8.42 ft at 12:00AM Jun 23, 2019Observed: 8.4 ft at 12:15AM Jun 23, 2019Observed: 8.42 ft at 12:30AM Jun 23, 2019Observed: 8.4 ft at 12:45AM Jun 23, 2019Observed: 8.4 ft at 1:00AM Jun 23, 2019Observed: 8.41 ft at 1:15AM Jun 23, 2019Observed: 8.41 ft at 1:30AM Jun 23, 2019Observed: 8.42 ft at 1:45AM Jun 23, 2019Observed: 8.4 ft at 2:00AM Jun 23, 2019Observed: 8.42 ft at 2:15AM Jun 23, 2019Observed: 8.4 ft at 2:30AM Jun 23, 2019Observed: 8.42 ft at 2:45AM Jun 23, 2019Observed: 8.4 ft at 3:00AM Jun 23, 2019Observed: 8.42 ft at 3:15AM Jun 23, 2019Observed: 8.41 ft at 3:30AM Jun 23, 2019Observed: 8.4 ft at 3:45AM Jun 23, 2019Observed: 8.39 ft at 4:00AM Jun 23, 2019Observed: 8.38 ft at 4:15AM Jun 23, 2019Observed: 8.4 ft at 4:30AM Jun 23, 2019Observed: 8.39 ft at 4:45AM Jun 23, 2019Observed: 8.4 ft at 5:00AM Jun 23, 2019Observed: 8.37 ft at 5:15AM Jun 23, 2019Observed: 8.4 ft at 5:30AM Jun 23, 2019Observed: 8.39 ft at 5:45AM Jun 23, 2019Observed: 8.38 ft at 6:00AM Jun 23, 2019Observed: 8.38 ft at 6:15AM Jun 23, 2019Observed: 8.39 ft at 6:30AM Jun 23, 2019Observed: 8.4 ft at 6:45AM Jun 23, 2019Observed: 8.38 ft at 7:00AM Jun 23, 2019Observed: 8.38 ft at 7:15AM Jun 23, 2019Observed: 8.39 ft at 7:30AM Jun 23, 2019Observed: 8.39 ft at 7:45AM Jun 23, 2019Observed: 8.38 ft at 8:00AM Jun 23, 2019Observed: 8.35 ft at 8:15AM Jun 23, 2019Observed: 8.37 ft at 8:30AM Jun 23, 2019Observed: 8.37 ft at 8:45AM Jun 23, 2019Observed: 8.37 ft at 9:00AM Jun 23, 2019Observed: 8.37 ft at 9:15AM Jun 23, 2019Observed: 8.38 ft at 9:30AM Jun 23, 2019Observed: 8.37 ft at 9:45AM Jun 23, 2019Observed: 8.36 ft at 10:00AM Jun 23, 2019Observed: 8.36 ft at 10:15AM Jun 23, 2019Observed: 8.37 ft at 10:30AM Jun 23, 2019Observed: 8.35 ft at 10:45AM Jun 23, 2019Observed: 8.37 ft at 11:00AM Jun 23, 2019Observed: 8.36 ft at 11:15AM Jun 23, 2019Observed: 8.36 ft at 11:30AM Jun 23, 2019Observed: 8.36 ft at 11:45AM Jun 23, 2019Observed: 8.35 ft at 12:00PM Jun 23, 2019Observed: 8.34 ft at 12:15PM Jun 23, 2019Observed: 8.35 ft at 12:30PM Jun 23, 2019Observed: 8.36 ft at 12:45PM Jun 23, 2019Observed: 8.36 ft at 1:00PM Jun 23, 2019Observed: 8.36 ft at 1:01PM Jun 23, 2019Observed: 8.34 ft at 1:15PM Jun 23, 2019Observed: 8.34 ft at 1:16PM Jun 23, 2019Observed: 8.35 ft at 1:30PM Jun 23, 2019Observed: 8.35 ft at 1:31PM Jun 23, 2019Observed: 8.34 ft at 1:45PM Jun 23, 2019Observed: 8.34 ft at 2:00PM Jun 23, 2019Observed: 8.34 ft at 2:15PM Jun 23, 2019Observed: 8.33 ft at 2:30PM Jun 23, 2019Observed: 8.35 ft at 2:45PM Jun 23, 2019Observed: 8.33 ft at 3:00PM Jun 23, 2019Observed: 8.35 ft at 3:15PM Jun 23, 2019Observed: 8.33 ft at 3:30PM Jun 23, 2019Observed: 8.33 ft at 3:45PM Jun 23, 2019Observed: 8.32 ft at 4:00PM Jun 23, 2019Observed: 8.32 ft at 4:15PM Jun 23, 2019Observed: 8.31 ft at 4:30PM Jun 23, 2019Observed: 8.31 ft at 4:45PM Jun 23, 2019Observed: 8.31 ft at 5:00PM Jun 23, 2019Observed: 8.31 ft at 5:15PM Jun 23, 2019Observed: 8.31 ft at 5:30PM Jun 23, 2019Observed: 8.32 ft at 5:45PM Jun 23, 2019Observed: 8.31 ft at 6:00PM Jun 23, 2019Observed: 8.3 ft at 6:15PM Jun 23, 2019Observed: 8.3 ft at 6:30PM Jun 23, 2019Observed: 8.31 ft at 6:45PM Jun 23, 2019Observed: 8.31 ft at 7:00PM Jun 23, 2019Observed: 8.3 ft at 7:15PM Jun 23, 2019Observed: 8.31 ft at 7:30PM Jun 23, 2019Observed: 8.3 ft at 7:45PM Jun 23, 2019Observed: 8.31 ft at 8:00PM Jun 23, 2019Observed: 8.29 ft at 8:15PM Jun 23, 2019Observed: 8.31 ft at 8:30PM Jun 23, 2019Observed: 8.32 ft at 8:45PM Jun 23, 2019Observed: 8.3 ft at 9:00PM Jun 23, 2019Observed: 8.3 ft at 9:01PM Jun 23, 2019Observed: 8.3 ft at 9:15PM Jun 23, 2019Observed: 8.3 ft at 9:16PM Jun 23, 2019Observed: 8.28 ft at 9:30PM Jun 23, 2019Observed: 8.28 ft at 9:31PM Jun 23, 2019Observed: 8.3 ft at 9:45PM Jun 23, 2019Observed: 8.3 ft at 10:00PM Jun 23, 2019Observed: 8.29 ft at 10:15PM Jun 23, 2019Observed: 8.3 ft at 10:30PM Jun 23, 2019Observed: 8.29 ft at 10:45PM Jun 23, 2019Observed: 8.29 ft at 11:00PM Jun 23, 2019Observed: 8.28 ft at 11:15PM Jun 23, 2019Observed: 8.28 ft at 11:30PM Jun 23, 2019Observed: 8.29 ft at 11:45PM Jun 23, 2019Observed: 8.28 ft at 12:00AM Jun 24, 2019Observed: 8.27 ft at 12:15AM Jun 24, 2019Observed: 8.3 ft at 12:30AM Jun 24, 2019Observed: 8.28 ft at 12:45AM Jun 24, 2019Observed: 8.29 ft at 1:00AM Jun 24, 2019Observed: 8.28 ft at 1:15AM Jun 24, 2019Observed: 8.28 ft at 1:30AM Jun 24, 2019Observed: 8.27 ft at 1:45AM Jun 24, 2019Observed: 8.28 ft at 2:00AM Jun 24, 2019Observed: 8.27 ft at 2:15AM Jun 24, 2019Observed: 8.28 ft at 2:30AM Jun 24, 2019Observed: 8.26 ft at 2:45AM Jun 24, 2019Observed: 8.26 ft at 3:00AM Jun 24, 2019Observed: 8.25 ft at 3:15AM Jun 24, 2019Observed: 8.26 ft at 3:30AM Jun 24, 2019Observed: 8.26 ft at 3:45AM Jun 24, 2019Observed: 8.25 ft at 4:00AM Jun 24, 2019Observed: 8.24 ft at 4:15AM Jun 24, 2019Observed: 8.25 ft at 4:30AM Jun 24, 2019Observed: 8.25 ft at 4:45AM Jun 24, 2019Observed: 8.25 ft at 5:00AM Jun 24, 2019Observed: 8.26 ft at 5:15AM Jun 24, 2019Observed: 8.27 ft at 5:30AM Jun 24, 2019Observed: 8.26 ft at 5:45AM Jun 24, 2019Observed: 8.24 ft at 6:00AM Jun 24, 2019Observed: 8.26 ft at 6:15AM Jun 24, 2019Observed: 8.22 ft at 6:30AM Jun 24, 2019Observed: 8.26 ft at 6:45AM Jun 24, 2019Observed: 8.24 ft at 7:00AM Jun 24, 2019Observed: 8.24 ft at 7:15AM Jun 24, 2019Observed: 8.25 ft at 7:30AM Jun 24, 2019Observed: 8.24 ft at 7:45AM Jun 24, 2019Observed: 8.24 ft at 8:00AM Jun 24, 2019Observed: 8.24 ft at 8:15AM Jun 24, 2019Observed: 8.23 ft at 8:30AM Jun 24, 2019Observed: 8.24 ft at 8:45AM Jun 24, 2019Observed: 8.23 ft at 9:00AM Jun 24, 2019Observed: 8.23 ft at 9:15AM Jun 24, 2019Observed: 8.24 ft at 9:30AM Jun 24, 2019Observed: 8.24 ft at 9:45AM Jun 24, 2019Observed: 8.23 ft at 10:00AM Jun 24, 2019Observed: 8.22 ft at 10:15AM Jun 24, 2019Observed: 8.22 ft at 10:30AM Jun 24, 2019Observed: 8.24 ft at 10:45AM Jun 24, 2019Observed: 8.22 ft at 11:00AM Jun 24, 2019Observed: 8.23 ft at 11:15AM Jun 24, 2019Observed: 8.23 ft at 11:30AM Jun 24, 2019Observed: 8.23 ft at 11:45AM Jun 24, 2019Observed: 8.22 ft at 12:00PM Jun 24, 2019Observed: 8.23 ft at 12:15PM Jun 24, 2019Observed: 8.22 ft at 12:30PM Jun 24, 2019Observed: 8.21 ft at 12:45PM Jun 24, 2019Observed: 8.22 ft at 1:00PM Jun 24, 2019Observed: 8.23 ft at 1:15PM Jun 24, 2019Observed: 8.23 ft at 1:16PM Jun 24, 2019Observed: 8.22 ft at 1:30PM Jun 24, 2019Observed: 8.22 ft at 1:31PM Jun 24, 2019Observed: 8.23 ft at 1:45PM Jun 24, 2019Observed: 8.23 ft at 1:46PM Jun 24, 2019Observed: 8.22 ft at 2:00PM Jun 24, 2019Observed: 8.21 ft at 2:15PM Jun 24, 2019Observed: 8.2 ft at 2:30PM Jun 24, 2019Observed: 8.22 ft at 2:45PM Jun 24, 2019Observed: 8.22 ft at 3:00PM Jun 24, 2019Observed: 8.2 ft at 3:15PM Jun 24, 2019Observed: 8.22 ft at 3:30PM Jun 24, 2019Observed: 8.2 ft at 3:45PM Jun 24, 2019Observed: 8.21 ft at 4:00PM Jun 24, 2019Observed: 8.2 ft at 4:15PM Jun 24, 2019Observed: 8.21 ft at 4:30PM Jun 24, 2019Observed: 8.22 ft at 4:45PM Jun 24, 2019Observed: 8.2 ft at 5:00PM Jun 24, 2019Observed: 8.2 ft at 5:15PM Jun 24, 2019Observed: 8.19 ft at 5:30PM Jun 24, 2019Observed: 8.2 ft at 5:45PM Jun 24, 2019Observed: 8.19 ft at 6:00PM Jun 24, 2019Observed: 8.18 ft at 6:15PM Jun 24, 2019Observed: 8.2 ft at 6:30PM Jun 24, 2019Observed: 8.19 ft at 6:45PM Jun 24, 2019Observed: 8.19 ft at 7:00PM Jun 24, 2019Observed: 8.19 ft at 7:15PM Jun 24, 2019Observed: 8.19 ft at 7:30PM Jun 24, 2019Observed: 8.17 ft at 7:45PM Jun 24, 2019Observed: 8.18 ft at 8:00PM Jun 24, 2019Observed: 8.19 ft at 8:15PM Jun 24, 2019Observed: 8.19 ft at 8:30PM Jun 24, 2019Observed: 8.19 ft at 8:45PM Jun 24, 2019Observed: 8.19 ft at 9:00PM Jun 24, 2019Observed: 8.19 ft at 9:15PM Jun 24, 2019Observed: 8.19 ft at 9:16PM Jun 24, 2019Observed: 8.18 ft at 9:30PM Jun 24, 2019Observed: 8.18 ft at 9:31PM Jun 24, 2019Observed: 8.18 ft at 9:45PM Jun 24, 2019Observed: 8.18 ft at 9:46PM Jun 24, 2019Observed: 8.19 ft at 10:00PM Jun 24, 2019Observed: 8.2 ft at 10:15PM Jun 24, 2019Observed: 8.21 ft at 10:30PM Jun 24, 2019Observed: 8.2 ft at 10:45PM Jun 24, 2019Observed: 8.19 ft at 11:00PM Jun 24, 2019Observed: 8.2 ft at 11:15PM Jun 24, 2019Observed: 8.2 ft at 11:30PM Jun 24, 2019Observed: 8.21 ft at 11:45PM Jun 24, 2019Observed: 8.2 ft at 12:00AM Jun 25, 2019Observed: 8.19 ft at 12:15AM Jun 25, 2019Observed: 8.21 ft at 12:30AM Jun 25, 2019Observed: 8.2 ft at 12:45AM Jun 25, 2019Observed: 8.21 ft at 1:00AM Jun 25, 2019Observed: 8.2 ft at 1:15AM Jun 25, 2019Observed: 8.21 ft at 1:30AM Jun 25, 2019Observed: 8.18 ft at 1:45AM Jun 25, 2019Observed: 8.19 ft at 2:00AM Jun 25, 2019Observed: 8.2 ft at 2:15AM Jun 25, 2019Observed: 8.2 ft at 2:30AM Jun 25, 2019Observed: 8.19 ft at 2:45AM Jun 25, 2019Observed: 8.21 ft at 3:00AM Jun 25, 2019Observed: 8.19 ft at 3:15AM Jun 25, 2019Observed: 8.19 ft at 3:30AM Jun 25, 2019Observed: 8.2 ft at 3:45AM Jun 25, 2019Observed: 8.19 ft at 4:00AM Jun 25, 2019Observed: 8.2 ft at 4:15AM Jun 25, 2019Observed: 8.19 ft at 4:30AM Jun 25, 2019Observed: 8.19 ft at 4:45AM Jun 25, 2019Observed: 8.19 ft at 5:00AM Jun 25, 2019Observed: 8.18 ft at 5:15AM Jun 25, 2019Observed: 8.18 ft at 5:16AM Jun 25, 2019Observed: 8.17 ft at 5:30AM Jun 25, 2019Observed: 8.17 ft at 5:31AM Jun 25, 2019Observed: 8.2 ft at 5:45AM Jun 25, 2019Observed: 8.2 ft at 5:46AM Jun 25, 2019Observed: 8.21 ft at 6:00AM Jun 25, 2019Observed: 8.21 ft at 6:15AM Jun 25, 2019Observed: 8.2 ft at 6:30AM Jun 25, 2019Observed: 8.18 ft at 6:45AM Jun 25, 2019Observed: 8.2 ft at 7:00AM Jun 25, 2019Observed: 8.19 ft at 7:15AM Jun 25, 2019Observed: 8.19 ft at 7:30AM Jun 25, 2019Observed: 8.2 ft at 7:45AM Jun 25, 2019Observed: 8.19 ft at 8:00AM Jun 25, 2019Observed: 8.2 ft at 8:15AM Jun 25, 2019Observed: 8.18 ft at 8:30AM Jun 25, 2019Observed: 8.18 ft at 8:45AM Jun 25, 2019Observed: 8.18 ft at 9:00AM Jun 25, 2019Observed: 8.17 ft at 9:15AM Jun 25, 2019Observed: 8.18 ft at 9:30AM Jun 25, 2019Observed: 8.19 ft at 9:45AM Jun 25, 2019Observed: 8.17 ft at 10:00AM Jun 25, 2019Observed: 8.16 ft at 10:15AM Jun 25, 2019Observed: 8.15 ft at 10:30AM Jun 25, 2019Observed: 8.17 ft at 10:45AM Jun 25, 2019Observed: 8.18 ft at 11:00AM Jun 25, 2019Observed: 8.17 ft at 11:15AM Jun 25, 2019Observed: 8.18 ft at 11:30AM Jun 25, 2019Observed: 8.16 ft at 11:45AM Jun 25, 2019Observed: 8.17 ft at 12:00PM Jun 25, 2019Observed: 8.16 ft at 12:15PM Jun 25, 2019Observed: 8.17 ft at 12:30PM Jun 25, 2019Observed: 8.16 ft at 12:45PM Jun 25, 2019Observed: 8.15 ft at 1:00PM Jun 25, 2019Observed: 8.18 ft at 1:15PM Jun 25, 2019Observed: 8.16 ft at 1:30PM Jun 25, 2019Observed: 8.15 ft at 1:45PM Jun 25, 2019Observed: 8.17 ft at 2:00PM Jun 25, 2019Observed: 8.15 ft at 2:15PM Jun 25, 2019Observed: 8.14 ft at 2:30PM Jun 25, 2019Observed: 8.15 ft at 2:45PM Jun 25, 2019Observed: 8.15 ft at 3:00PM Jun 25, 2019Observed: 8.15 ft at 3:15PM Jun 25, 2019Observed: 8.16 ft at 3:30PM Jun 25, 2019Observed: 8.16 ft at 3:45PM Jun 25, 2019Observed: 8.13 ft at 4:00PM Jun 25, 2019Observed: 8.14 ft at 4:15PM Jun 25, 2019Observed: 8.16 ft at 4:30PM Jun 25, 2019Observed: 8.12 ft at 4:45PM Jun 25, 2019Observed: 8.13 ft at 5:00PM Jun 25, 2019Observed: 8.12 ft at 5:15PM Jun 25, 2019Observed: 8.12 ft at 5:30PM Jun 25, 2019Observed: 8.15 ft at 5:45PM Jun 25, 2019Observed: 8.13 ft at 6:00PM Jun 25, 2019Observed: 8.12 ft at 6:15PM Jun 25, 2019Observed: 8.14 ft at 6:30PM Jun 25, 2019Observed: 8.13 ft at 6:45PM Jun 25, 2019Observed: 8.13 ft at 7:00PM Jun 25, 2019Observed: 8.14 ft at 7:15PM Jun 25, 2019Observed: 8.14 ft at 7:30PM Jun 25, 2019Observed: 8.14 ft at 7:45PM Jun 25, 2019Observed: 8.13 ft at 8:00PM Jun 25, 2019Observed: 8.13 ft at 8:15PM Jun 25, 2019Observed: 8.15 ft at 8:30PM Jun 25, 2019Observed: 8.12 ft at 8:45PM Jun 25, 2019Observed: 8.11 ft at 9:00PM Jun 25, 2019Observed: 8.12 ft at 9:15PM Jun 25, 2019Observed: 8.11 ft at 9:30PM Jun 25, 2019Observed: 8.12 ft at 9:45PM Jun 25, 2019Observed: 8.12 ft at 10:00PM Jun 25, 2019Observed: 8.1 ft at 10:15PM Jun 25, 2019Observed: 8.11 ft at 10:30PM Jun 25, 2019Observed: 8.12 ft at 10:45PM Jun 25, 2019Observed: 8.13 ft at 11:00PM Jun 25, 2019Observed: 8.12 ft at 11:15PM Jun 25, 2019Observed: 8.11 ft at 11:30PM Jun 25, 2019Observed: 8.1 ft at 11:45PM Jun 25, 2019Observed: 8.09 ft at 12:00AM Jun 26, 2019Observed: 8.1 ft at 12:15AM Jun 26, 2019Observed: 8.11 ft at 12:30AM Jun 26, 2019Observed: 8.1 ft at 12:45AM Jun 26, 2019USGS--Water Resources of the United StatesBRKS2(plotting HGIRG) Graph Created (1:48AM Jun 26, 2019)ObservedLatest observed value: 8.1 ft at 12:45 AM CDT 26-Jun-2019. Flood Stage is 9 ft
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About this graph
Tabular Data (UTC)
Tabular Data (CDT)
XML Data
RSS Files
Datum: Not Available
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 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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Gauge LocationGauge Map Marker
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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How low could the river get?
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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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Page last modified: 4-Mar-2019 11:29 PM
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