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Hydrograph River at a Glance Download
Big Sioux River at Lake Poinsett Inlet/Outlet Lake Elevation (ft)Observed: 1656.7 ft at 3:45PM May 14, 2019Observed: 1656.71 ft at 4:00PM May 14, 2019Observed: 1656.7 ft at 4:15PM May 14, 2019Observed: 1656.7 ft at 4:30PM May 14, 2019Observed: 1656.71 ft at 4:45PM May 14, 2019Observed: 1656.7 ft at 5:00PM May 14, 2019Observed: 1656.71 ft at 5:15PM May 14, 2019Observed: 1656.7 ft at 5:30PM May 14, 2019Observed: 1656.71 ft at 5:45PM May 14, 2019Observed: 1656.7 ft at 6:00PM May 14, 2019Observed: 1656.67 ft at 6:15PM May 14, 2019Observed: 1656.68 ft at 6:30PM May 14, 2019Observed: 1656.68 ft at 6:45PM May 14, 2019Observed: 1656.68 ft at 7:00PM May 14, 2019Observed: 1656.68 ft at 7:15PM May 14, 2019Observed: 1656.71 ft at 7:30PM May 14, 2019Observed: 1656.7 ft at 7:45PM May 14, 2019Highest Observation: 1656.72 ft at 8:00PM May 14, 2019Observed: 1656.7 ft at 8:15PM May 14, 2019Observed: 1656.71 ft at 8:30PM May 14, 2019Highest Observation: 1656.72 ft at 8:45PM May 14, 2019Observed: 1656.71 ft at 9:00PM May 14, 2019Observed: 1656.69 ft at 9:15PM May 14, 2019Highest Observation: 1656.72 ft at 9:30PM May 14, 2019Observed: 1656.7 ft at 9:45PM May 14, 2019Observed: 1656.71 ft at 10:00PM May 14, 2019Observed: 1656.7 ft at 10:15PM May 14, 2019Observed: 1656.7 ft at 10:30PM May 14, 2019Observed: 1656.71 ft at 10:45PM May 14, 2019Observed: 1656.7 ft at 11:00PM May 14, 2019Observed: 1656.7 ft at 11:15PM May 14, 2019Observed: 1656.71 ft at 11:30PM May 14, 2019Observed: 1656.7 ft at 11:45PM May 14, 2019Observed: 1656.69 ft at 12:00AM May 15, 2019Highest Observation: 1656.72 ft at 12:15AM May 15, 2019Observed: 1656.7 ft at 12:30AM May 15, 2019Observed: 1656.71 ft at 12:45AM May 15, 2019Observed: 1656.7 ft at 1:00AM May 15, 2019Observed: 1656.69 ft at 1:15AM May 15, 2019Observed: 1656.69 ft at 1:30AM May 15, 2019Observed: 1656.71 ft at 1:45AM May 15, 2019Observed: 1656.71 ft at 2:00AM May 15, 2019Highest Observation: 1656.72 ft at 2:15AM May 15, 2019Highest Observation: 1656.72 ft at 2:30AM May 15, 2019Observed: 1656.71 ft at 2:45AM May 15, 2019Highest Observation: 1656.72 ft at 3:00AM May 15, 2019Highest Observation: 1656.72 ft at 3:15AM May 15, 2019Highest Observation: 1656.72 ft at 3:30AM May 15, 2019Observed: 1656.71 ft at 3:45AM May 15, 2019Highest Observation: 1656.72 ft at 4:00AM May 15, 2019Observed: 1656.7 ft at 4:15AM May 15, 2019Highest Observation: 1656.72 ft at 4:30AM May 15, 2019Observed: 1656.71 ft at 4:45AM May 15, 2019Observed: 1656.71 ft at 5:00AM May 15, 2019Highest Observation: 1656.72 ft at 5:15AM May 15, 2019Observed: 1656.7 ft at 5:30AM May 15, 2019Observed: 1656.7 ft at 5:45AM May 15, 2019Highest Observation: 1656.72 ft at 6:00AM May 15, 2019Observed: 1656.71 ft at 6:15AM May 15, 2019Observed: 1656.69 ft at 6:30AM May 15, 2019Observed: 1656.71 ft at 6:45AM May 15, 2019Observed: 1656.71 ft at 7:00AM May 15, 2019Observed: 1656.7 ft at 7:15AM May 15, 2019Observed: 1656.71 ft at 7:30AM May 15, 2019Observed: 1656.69 ft at 7:45AM May 15, 2019Observed: 1656.7 ft at 8:00AM May 15, 2019Observed: 1656.7 ft at 8:15AM May 15, 2019Observed: 1656.71 ft at 8:30AM May 15, 2019Observed: 1656.7 ft at 8:45AM May 15, 2019Observed: 1656.67 ft at 9:00AM May 15, 2019Observed: 1656.69 ft at 9:15AM May 15, 2019Observed: 1656.69 ft at 9:30AM May 15, 2019Observed: 1656.69 ft at 9:45AM May 15, 2019Observed: 1656.69 ft at 10:00AM May 15, 2019Observed: 1656.69 ft at 10:15AM May 15, 2019Observed: 1656.68 ft at 10:30AM May 15, 2019Observed: 1656.69 ft at 10:45AM May 15, 2019Observed: 1656.68 ft at 11:00AM May 15, 2019Observed: 1656.68 ft at 11:15AM May 15, 2019Observed: 1656.68 ft at 11:30AM May 15, 2019Observed: 1656.66 ft at 11:45AM May 15, 2019Observed: 1656.68 ft at 12:00PM May 15, 2019Observed: 1656.68 ft at 12:15PM May 15, 2019Observed: 1656.67 ft at 12:30PM May 15, 2019Observed: 1656.67 ft at 12:45PM May 15, 2019Observed: 1656.66 ft at 1:00PM May 15, 2019Observed: 1656.66 ft at 1:15PM May 15, 2019Observed: 1656.67 ft at 1:30PM May 15, 2019Observed: 1656.65 ft at 1:45PM May 15, 2019Observed: 1656.65 ft at 2:00PM May 15, 2019Observed: 1656.65 ft at 2:15PM May 15, 2019Observed: 1656.66 ft at 2:30PM May 15, 2019Observed: 1656.65 ft at 2:45PM May 15, 2019Observed: 1656.65 ft at 3:00PM May 15, 2019Observed: 1656.64 ft at 3:15PM May 15, 2019Observed: 1656.64 ft at 3:30PM May 15, 2019Observed: 1656.65 ft at 3:45PM May 15, 2019Observed: 1656.65 ft at 4:00PM May 15, 2019Observed: 1656.65 ft at 4:15PM May 15, 2019Observed: 1656.65 ft at 4:30PM May 15, 2019Observed: 1656.65 ft at 4:45PM May 15, 2019Observed: 1656.64 ft at 5:00PM May 15, 2019Observed: 1656.65 ft at 5:15PM May 15, 2019Observed: 1656.65 ft at 5:30PM May 15, 2019Observed: 1656.64 ft at 5:45PM May 15, 2019Observed: 1656.66 ft at 6:00PM May 15, 2019Observed: 1656.65 ft at 6:15PM May 15, 2019Observed: 1656.65 ft at 6:30PM May 15, 2019Observed: 1656.65 ft at 6:45PM May 15, 2019Observed: 1656.65 ft at 7:00PM May 15, 2019Observed: 1656.64 ft at 7:15PM May 15, 2019Observed: 1656.66 ft at 7:30PM May 15, 2019Observed: 1656.66 ft at 7:45PM May 15, 2019Observed: 1656.65 ft at 8:00PM May 15, 2019Observed: 1656.65 ft at 8:15PM May 15, 2019Observed: 1656.66 ft at 8:30PM May 15, 2019Observed: 1656.67 ft at 8:45PM May 15, 2019Observed: 1656.68 ft at 9:00PM May 15, 2019Observed: 1656.66 ft at 9:15PM May 15, 2019Observed: 1656.67 ft at 9:30PM May 15, 2019Observed: 1656.66 ft at 9:45PM May 15, 2019Observed: 1656.67 ft at 10:00PM May 15, 2019Observed: 1656.67 ft at 10:15PM May 15, 2019Observed: 1656.68 ft at 10:30PM May 15, 2019Observed: 1656.66 ft at 10:45PM May 15, 2019Observed: 1656.68 ft at 11:00PM May 15, 2019Observed: 1656.67 ft at 11:15PM May 15, 2019Observed: 1656.67 ft at 11:30PM May 15, 2019Observed: 1656.65 ft at 11:45PM May 15, 2019Observed: 1656.65 ft at 12:00AM May 16, 2019Observed: 1656.66 ft at 12:15AM May 16, 2019Observed: 1656.66 ft at 12:30AM May 16, 2019Observed: 1656.67 ft at 12:45AM May 16, 2019Observed: 1656.66 ft at 1:00AM May 16, 2019Observed: 1656.67 ft at 1:15AM May 16, 2019Observed: 1656.67 ft at 1:30AM May 16, 2019Observed: 1656.67 ft at 1:45AM May 16, 2019Observed: 1656.66 ft at 2:00AM May 16, 2019Observed: 1656.66 ft at 2:15AM May 16, 2019Observed: 1656.66 ft at 2:30AM May 16, 2019Observed: 1656.66 ft at 2:45AM May 16, 2019Observed: 1656.69 ft at 3:00AM May 16, 2019Observed: 1656.66 ft at 3:15AM May 16, 2019Observed: 1656.69 ft at 3:30AM May 16, 2019Observed: 1656.67 ft at 3:45AM May 16, 2019Observed: 1656.68 ft at 4:00AM May 16, 2019Observed: 1656.68 ft at 4:15AM May 16, 2019Observed: 1656.66 ft at 4:30AM May 16, 2019Observed: 1656.69 ft at 4:45AM May 16, 2019Observed: 1656.68 ft at 5:00AM May 16, 2019Observed: 1656.68 ft at 5:15AM May 16, 2019Observed: 1656.67 ft at 5:30AM May 16, 2019Observed: 1656.66 ft at 5:45AM May 16, 2019Observed: 1656.68 ft at 6:00AM May 16, 2019Observed: 1656.68 ft at 6:15AM May 16, 2019Observed: 1656.68 ft at 6:30AM May 16, 2019Observed: 1656.69 ft at 6:45AM May 16, 2019Observed: 1656.67 ft at 7:00AM May 16, 2019Observed: 1656.69 ft at 7:15AM May 16, 2019Observed: 1656.68 ft at 7:30AM May 16, 2019Observed: 1656.68 ft at 7:45AM May 16, 2019Observed: 1656.67 ft at 8:00AM May 16, 2019Observed: 1656.69 ft at 8:15AM May 16, 2019Observed: 1656.64 ft at 8:30AM May 16, 2019Observed: 1656.66 ft at 8:45AM May 16, 2019Observed: 1656.65 ft at 9:00AM May 16, 2019Observed: 1656.65 ft at 9:15AM May 16, 2019Observed: 1656.66 ft at 9:30AM May 16, 2019Observed: 1656.63 ft at 9:45AM May 16, 2019Observed: 1656.64 ft at 10:00AM May 16, 2019Observed: 1656.63 ft at 10:15AM May 16, 2019Observed: 1656.64 ft at 10:30AM May 16, 2019Observed: 1656.66 ft at 10:45AM May 16, 2019Observed: 1656.64 ft at 11:00AM May 16, 2019Observed: 1656.66 ft at 11:15AM May 16, 2019Observed: 1656.63 ft at 11:30AM May 16, 2019Observed: 1656.63 ft at 11:45AM May 16, 2019Observed: 1656.64 ft at 12:00PM May 16, 2019Observed: 1656.63 ft at 12:15PM May 16, 2019Observed: 1656.65 ft at 12:30PM May 16, 2019Observed: 1656.64 ft at 12:45PM May 16, 2019Observed: 1656.66 ft at 1:00PM May 16, 2019Observed: 1656.63 ft at 1:15PM May 16, 2019Observed: 1656.63 ft at 1:30PM May 16, 2019Observed: 1656.64 ft at 1:45PM May 16, 2019Observed: 1656.63 ft at 2:00PM May 16, 2019Observed: 1656.65 ft at 2:15PM May 16, 2019Observed: 1656.63 ft at 2:30PM May 16, 2019Observed: 1656.63 ft at 2:45PM May 16, 2019Observed: 1656.64 ft at 3:00PM May 16, 2019Observed: 1656.65 ft at 3:15PM May 16, 2019Observed: 1656.64 ft at 3:30PM May 16, 2019Observed: 1656.63 ft at 3:45PM May 16, 2019Observed: 1656.62 ft at 4:00PM May 16, 2019Observed: 1656.63 ft at 4:15PM May 16, 2019Observed: 1656.61 ft at 4:30PM May 16, 2019Observed: 1656.63 ft at 4:45PM May 16, 2019Observed: 1656.65 ft at 5:00PM May 16, 2019Observed: 1656.62 ft at 5:15PM May 16, 2019Observed: 1656.64 ft at 5:30PM May 16, 2019Observed: 1656.62 ft at 5:45PM May 16, 2019Observed: 1656.63 ft at 6:00PM May 16, 2019Observed: 1656.65 ft at 6:15PM May 16, 2019Observed: 1656.63 ft at 6:30PM May 16, 2019Observed: 1656.64 ft at 6:45PM May 16, 2019Observed: 1656.63 ft at 7:00PM May 16, 2019Observed: 1656.66 ft at 7:15PM May 16, 2019Observed: 1656.63 ft at 7:30PM May 16, 2019Observed: 1656.65 ft at 7:45PM May 16, 2019Observed: 1656.63 ft at 8:00PM May 16, 2019Observed: 1656.63 ft at 8:15PM May 16, 2019Observed: 1656.65 ft at 8:30PM May 16, 2019Observed: 1656.63 ft at 8:45PM May 16, 2019Observed: 1656.66 ft at 9:00PM May 16, 2019Observed: 1656.63 ft at 9:15PM May 16, 2019Observed: 1656.65 ft at 9:30PM May 16, 2019Observed: 1656.62 ft at 9:45PM May 16, 2019Observed: 1656.65 ft at 10:00PM May 16, 2019Observed: 1656.65 ft at 10:15PM May 16, 2019Observed: 1656.66 ft at 10:30PM May 16, 2019Observed: 1656.66 ft at 10:45PM May 16, 2019Observed: 1656.64 ft at 11:00PM May 16, 2019Observed: 1656.66 ft at 11:15PM May 16, 2019Observed: 1656.64 ft at 11:30PM May 16, 2019Observed: 1656.65 ft at 11:45PM May 16, 2019Observed: 1656.63 ft at 12:00AM May 17, 2019Observed: 1656.63 ft at 12:15AM May 17, 2019Observed: 1656.65 ft at 12:30AM May 17, 2019Observed: 1656.61 ft at 12:45AM May 17, 2019Observed: 1656.65 ft at 1:00AM May 17, 2019Observed: 1656.62 ft at 1:15AM May 17, 2019Observed: 1656.63 ft at 1:30AM May 17, 2019Observed: 1656.65 ft at 1:45AM May 17, 2019Observed: 1656.63 ft at 2:00AM May 17, 2019Observed: 1656.63 ft at 2:15AM May 17, 2019Observed: 1656.64 ft at 2:30AM May 17, 2019Observed: 1656.63 ft at 2:45AM May 17, 2019Observed: 1656.63 ft at 3:00AM May 17, 2019Observed: 1656.64 ft at 3:15AM May 17, 2019Observed: 1656.6 ft at 3:30AM May 17, 2019Observed: 1656.66 ft at 3:45AM May 17, 2019Observed: 1656.62 ft at 4:00AM May 17, 2019Observed: 1656.63 ft at 4:15AM May 17, 2019Observed: 1656.67 ft at 4:30AM May 17, 2019Observed: 1656.61 ft at 4:45AM May 17, 2019Observed: 1656.61 ft at 5:00AM May 17, 2019Observed: 1656.65 ft at 5:15AM May 17, 2019Observed: 1656.61 ft at 5:30AM May 17, 2019Observed: 1656.64 ft at 5:45AM May 17, 2019Observed: 1656.59 ft at 6:00AM May 17, 2019Observed: 1656.63 ft at 6:15AM May 17, 2019Observed: 1656.61 ft at 6:30AM May 17, 2019Observed: 1656.64 ft at 6:45AM May 17, 2019Observed: 1656.64 ft at 7:00AM May 17, 2019Observed: 1656.64 ft at 7:15AM May 17, 2019Observed: 1656.62 ft at 7:30AM May 17, 2019Observed: 1656.63 ft at 7:45AM May 17, 2019Observed: 1656.63 ft at 8:00AM May 17, 2019Observed: 1656.63 ft at 8:15AM May 17, 2019Observed: 1656.63 ft at 8:30AM May 17, 2019Observed: 1656.6 ft at 8:45AM May 17, 2019Observed: 1656.61 ft at 9:00AM May 17, 2019Observed: 1656.6 ft at 9:15AM May 17, 2019Observed: 1656.63 ft at 9:30AM May 17, 2019Observed: 1656.62 ft at 9:45AM May 17, 2019Observed: 1656.59 ft at 10:00AM May 17, 2019Observed: 1656.6 ft at 10:15AM May 17, 2019Observed: 1656.59 ft at 10:30AM May 17, 2019Observed: 1656.63 ft at 10:45AM May 17, 2019Observed: 1656.6 ft at 11:00AM May 17, 2019Observed: 1656.6 ft at 11:15AM May 17, 2019Observed: 1656.6 ft at 11:30AM May 17, 2019Observed: 1656.59 ft at 11:45AM May 17, 2019Observed: 1656.59 ft at 12:00PM May 17, 2019Observed: 1656.58 ft at 12:15PM May 17, 2019Observed: 1656.61 ft at 12:30PM May 17, 2019Observed: 1656.58 ft at 12:45PM May 17, 2019Observed: 1656.58 ft at 1:00PM May 17, 2019Observed: 1656.59 ft at 1:15PM May 17, 2019Observed: 1656.58 ft at 1:30PM May 17, 2019Observed: 1656.57 ft at 1:45PM May 17, 2019Observed: 1656.56 ft at 2:00PM May 17, 2019Observed: 1656.58 ft at 2:15PM May 17, 2019Observed: 1656.57 ft at 2:30PM May 17, 2019Observed: 1656.58 ft at 2:45PM May 17, 2019Observed: 1656.56 ft at 3:00PM May 17, 2019Observed: 1656.59 ft at 3:15PM May 17, 2019Observed: 1656.54 ft at 3:30PM May 17, 2019Observed: 1656.58 ft at 3:45PM May 17, 2019Observed: 1656.53 ft at 4:00PM May 17, 2019Observed: 1656.58 ft at 4:15PM May 17, 2019Observed: 1656.56 ft at 4:30PM May 17, 2019Observed: 1656.55 ft at 4:45PM May 17, 2019Observed: 1656.57 ft at 5:00PM May 17, 2019Observed: 1656.56 ft at 5:15PM May 17, 2019Observed: 1656.57 ft at 5:30PM May 17, 2019Observed: 1656.54 ft at 5:45PM May 17, 2019Observed: 1656.53 ft at 6:00PM May 17, 2019Observed: 1656.58 ft at 6:15PM May 17, 2019Observed: 1656.55 ft at 6:30PM May 17, 2019Observed: 1656.58 ft at 6:45PM May 17, 2019Observed: 1656.56 ft at 7:00PM May 17, 2019Observed: 1656.56 ft at 7:15PM May 17, 2019Observed: 1656.56 ft at 7:30PM May 17, 2019Observed: 1656.54 ft at 7:45PM May 17, 2019Observed: 1656.56 ft at 8:00PM May 17, 2019Observed: 1656.56 ft at 8:15PM May 17, 2019Observed: 1656.56 ft at 8:30PM May 17, 2019Observed: 1656.57 ft at 8:45PM May 17, 2019Observed: 1656.56 ft at 9:00PM May 17, 2019Observed: 1656.56 ft at 9:15PM May 17, 2019Observed: 1656.59 ft at 9:30PM May 17, 2019Observed: 1656.56 ft at 9:45PM May 17, 2019Observed: 1656.62 ft at 10:00PM May 17, 2019Observed: 1656.5 ft at 10:15PM May 17, 2019Observed: 1656.62 ft at 10:30PM May 17, 2019Observed: 1656.51 ft at 10:45PM May 17, 2019Observed: 1656.59 ft at 11:00PM May 17, 2019Observed: 1656.55 ft at 11:15PM May 17, 2019Observed: 1656.54 ft at 11:30PM May 17, 2019Observed: 1656.56 ft at 11:45PM May 17, 2019Observed: 1656.54 ft at 12:00AM May 18, 2019Observed: 1656.56 ft at 12:15AM May 18, 2019Observed: 1656.57 ft at 12:30AM May 18, 2019Observed: 1656.57 ft at 12:45AM May 18, 2019Observed: 1656.54 ft at 1:00AM May 18, 2019Observed: 1656.55 ft at 1:15AM May 18, 2019Observed: 1656.55 ft at 1:30AM May 18, 2019Observed: 1656.56 ft at 1:45AM May 18, 2019Observed: 1656.56 ft at 2:00AM May 18, 2019Observed: 1656.57 ft at 2:15AM May 18, 2019Observed: 1656.7 ft at 2:30AM May 18, 2019Observed: 1656.52 ft at 2:45AM May 18, 2019Observed: 1656.64 ft at 3:00AM May 18, 2019Observed: 1656.64 ft at 3:15AM May 18, 2019Observed: 1656.63 ft at 3:30AM May 18, 2019Observed: 1656.62 ft at 3:45AM May 18, 2019Observed: 1656.62 ft at 4:00AM May 18, 2019Observed: 1656.64 ft at 4:15AM May 18, 2019Observed: 1656.54 ft at 4:30AM May 18, 2019Observed: 1656.64 ft at 4:45AM May 18, 2019Observed: 1656.6 ft at 5:00AM May 18, 2019Observed: 1656.63 ft at 5:15AM May 18, 2019Observed: 1656.64 ft at 5:30AM May 18, 2019Observed: 1656.6 ft at 5:45AM May 18, 2019Observed: 1656.64 ft at 6:00AM May 18, 2019Observed: 1656.63 ft at 6:15AM May 18, 2019Observed: 1656.65 ft at 6:30AM May 18, 2019Observed: 1656.63 ft at 6:45AM May 18, 2019Observed: 1656.65 ft at 7:00AM May 18, 2019Observed: 1656.64 ft at 7:15AM May 18, 2019Observed: 1656.64 ft at 7:30AM May 18, 2019Observed: 1656.67 ft at 7:45AM May 18, 2019Observed: 1656.65 ft at 8:00AM May 18, 2019Observed: 1656.63 ft at 8:15AM May 18, 2019Observed: 1656.64 ft at 8:30AM May 18, 2019Observed: 1656.63 ft at 8:45AM May 18, 2019Observed: 1656.64 ft at 9:00AM May 18, 2019Observed: 1656.65 ft at 9:15AM May 18, 2019Observed: 1656.64 ft at 9:30AM May 18, 2019Observed: 1656.63 ft at 9:45AM May 18, 2019Observed: 1656.64 ft at 10:00AM May 18, 2019Observed: 1656.64 ft at 10:15AM May 18, 2019Observed: 1656.65 ft at 10:30AM May 18, 2019Observed: 1656.63 ft at 10:45AM May 18, 2019Observed: 1656.64 ft at 11:00AM May 18, 2019Observed: 1656.64 ft at 11:15AM May 18, 2019Observed: 1656.64 ft at 11:30AM May 18, 2019Observed: 1656.65 ft at 11:45AM May 18, 2019Observed: 1656.63 ft at 12:00PM May 18, 2019Observed: 1656.64 ft at 12:15PM May 18, 2019Observed: 1656.64 ft at 12:30PM May 18, 2019Observed: 1656.63 ft at 12:45PM May 18, 2019Observed: 1656.63 ft at 1:00PM May 18, 2019Observed: 1656.64 ft at 1:15PM May 18, 2019Observed: 1656.64 ft at 1:30PM May 18, 2019Observed: 1656.63 ft at 1:45PM May 18, 2019Observed: 1656.61 ft at 2:00PM May 18, 2019Observed: 1656.67 ft at 2:15PM May 18, 2019Observed: 1656.63 ft at 2:30PM May 18, 2019Observed: 1656.64 ft at 2:45PM May 18, 2019Observed: 1656.63 ft at 3:00PM May 18, 2019Observed: 1656.61 ft at 3:15PM May 18, 2019Observed: 1656.63 ft at 3:30PM May 18, 2019Observed: 1656.62 ft at 3:45PM May 18, 2019Observed: 1656.63 ft at 4:00PM May 18, 2019Observed: 1656.63 ft at 4:15PM May 18, 2019Observed: 1656.64 ft at 4:30PM May 18, 2019Observed: 1656.63 ft at 4:45PM May 18, 2019Observed: 1656.64 ft at 5:00PM May 18, 2019Observed: 1656.64 ft at 5:15PM May 18, 2019Observed: 1656.63 ft at 5:30PM May 18, 2019Observed: 1656.64 ft at 5:45PM May 18, 2019Observed: 1656.61 ft at 6:00PM May 18, 2019Observed: 1656.65 ft at 6:15PM May 18, 2019Observed: 1656.64 ft at 6:30PM May 18, 2019Observed: 1656.64 ft at 6:45PM May 18, 2019Observed: 1656.62 ft at 7:00PM May 18, 2019Observed: 1656.64 ft at 7:15PM May 18, 2019Observed: 1656.63 ft at 7:30PM May 18, 2019Observed: 1656.64 ft at 7:45PM May 18, 2019Observed: 1656.63 ft at 8:00PM May 18, 2019Observed: 1656.65 ft at 8:15PM May 18, 2019Observed: 1656.65 ft at 8:30PM May 18, 2019Observed: 1656.64 ft at 8:45PM May 18, 2019Observed: 1656.64 ft at 9:00PM May 18, 2019Observed: 1656.64 ft at 9:15PM May 18, 2019Observed: 1656.65 ft at 9:30PM May 18, 2019Observed: 1656.64 ft at 9:45PM May 18, 2019Observed: 1656.64 ft at 10:00PM May 18, 2019Observed: 1656.65 ft at 10:15PM May 18, 2019Observed: 1656.64 ft at 10:30PM May 18, 2019Observed: 1656.66 ft at 10:45PM May 18, 2019Observed: 1656.64 ft at 11:00PM May 18, 2019Observed: 1656.65 ft at 11:15PM May 18, 2019Observed: 1656.64 ft at 11:30PM May 18, 2019Observed: 1656.65 ft at 11:45PM May 18, 2019Observed: 1656.65 ft at 12:00AM May 19, 2019Observed: 1656.66 ft at 12:15AM May 19, 2019Observed: 1656.64 ft at 12:30AM May 19, 2019Observed: 1656.64 ft at 12:45AM May 19, 2019Observed: 1656.65 ft at 1:00AM May 19, 2019Observed: 1656.63 ft at 1:15AM May 19, 2019Observed: 1656.65 ft at 1:30AM May 19, 2019Observed: 1656.66 ft at 1:45AM May 19, 2019Observed: 1656.65 ft at 2:00AM May 19, 2019Observed: 1656.63 ft at 2:15AM May 19, 2019Observed: 1656.64 ft at 2:30AM May 19, 2019Observed: 1656.66 ft at 2:45AM May 19, 2019Observed: 1656.63 ft at 3:00AM May 19, 2019Observed: 1656.66 ft at 3:15AM May 19, 2019Observed: 1656.67 ft at 3:30AM May 19, 2019Observed: 1656.64 ft at 3:45AM May 19, 2019Observed: 1656.66 ft at 4:00AM May 19, 2019Observed: 1656.64 ft at 4:15AM May 19, 2019Observed: 1656.66 ft at 4:30AM May 19, 2019Observed: 1656.64 ft at 4:45AM May 19, 2019Observed: 1656.65 ft at 5:00AM May 19, 2019Observed: 1656.64 ft at 5:15AM May 19, 2019Observed: 1656.65 ft at 5:30AM May 19, 2019Observed: 1656.66 ft at 5:45AM May 19, 2019Observed: 1656.66 ft at 6:00AM May 19, 2019Observed: 1656.65 ft at 6:15AM May 19, 2019Observed: 1656.66 ft at 6:30AM May 19, 2019Observed: 1656.65 ft at 6:45AM May 19, 2019Observed: 1656.66 ft at 7:00AM May 19, 2019Observed: 1656.65 ft at 7:15AM May 19, 2019Observed: 1656.65 ft at 7:30AM May 19, 2019Observed: 1656.65 ft at 7:45AM May 19, 2019Observed: 1656.65 ft at 8:00AM May 19, 2019Observed: 1656.67 ft at 8:15AM May 19, 2019Observed: 1656.65 ft at 8:30AM May 19, 2019Observed: 1656.66 ft at 8:45AM May 19, 2019Observed: 1656.64 ft at 9:00AM May 19, 2019Observed: 1656.64 ft at 9:15AM May 19, 2019Observed: 1656.65 ft at 9:30AM May 19, 2019Observed: 1656.66 ft at 9:45AM May 19, 2019Observed: 1656.65 ft at 10:00AM May 19, 2019Observed: 1656.65 ft at 10:15AM May 19, 2019Observed: 1656.67 ft at 10:30AM May 19, 2019Observed: 1656.63 ft at 10:45AM May 19, 2019Observed: 1656.66 ft at 11:00AM May 19, 2019Observed: 1656.65 ft at 11:15AM May 19, 2019Observed: 1656.66 ft at 11:30AM May 19, 2019Observed: 1656.66 ft at 11:45AM May 19, 2019Observed: 1656.65 ft at 12:00PM May 19, 2019Observed: 1656.66 ft at 12:15PM May 19, 2019Observed: 1656.64 ft at 12:30PM May 19, 2019Observed: 1656.63 ft at 12:45PM May 19, 2019Observed: 1656.67 ft at 1:00PM May 19, 2019Observed: 1656.64 ft at 1:15PM May 19, 2019Observed: 1656.66 ft at 1:30PM May 19, 2019Observed: 1656.65 ft at 1:45PM May 19, 2019Observed: 1656.64 ft at 2:00PM May 19, 2019Observed: 1656.68 ft at 2:15PM May 19, 2019Observed: 1656.64 ft at 2:30PM May 19, 2019Observed: 1656.65 ft at 2:45PM May 19, 2019Observed: 1656.68 ft at 3:00PM May 19, 2019Observed: 1656.64 ft at 3:15PM May 19, 2019Observed: 1656.69 ft at 3:30PM May 19, 2019Observed: 1656.66 ft at 3:45PM May 19, 2019Observed: 1656.67 ft at 4:00PM May 19, 2019Observed: 1656.67 ft at 4:15PM May 19, 2019Observed: 1656.66 ft at 4:30PM May 19, 2019Observed: 1656.66 ft at 4:45PM May 19, 2019Observed: 1656.68 ft at 5:00PM May 19, 2019Observed: 1656.66 ft at 5:15PM May 19, 2019Observed: 1656.69 ft at 5:30PM May 19, 2019Observed: 1656.66 ft at 5:45PM May 19, 2019Observed: 1656.68 ft at 6:00PM May 19, 2019Observed: 1656.68 ft at 6:15PM May 19, 2019Observed: 1656.67 ft at 6:30PM May 19, 2019Observed: 1656.66 ft at 6:45PM May 19, 2019Observed: 1656.66 ft at 7:00PM May 19, 2019Observed: 1656.68 ft at 7:15PM May 19, 2019Observed: 1656.68 ft at 7:30PM May 19, 2019Observed: 1656.65 ft at 7:45PM May 19, 2019Observed: 1656.66 ft at 8:00PM May 19, 2019Observed: 1656.67 ft at 8:15PM May 19, 2019Observed: 1656.66 ft at 8:30PM May 19, 2019Observed: 1656.63 ft at 8:45PM May 19, 2019Observed: 1656.65 ft at 9:00PM May 19, 2019Observed: 1656.69 ft at 9:15PM May 19, 2019Observed: 1656.62 ft at 9:30PM May 19, 2019Observed: 1656.67 ft at 9:45PM May 19, 2019Observed: 1656.64 ft at 10:00PM May 19, 2019Observed: 1656.68 ft at 10:15PM May 19, 2019Observed: 1656.66 ft at 10:30PM May 19, 2019Observed: 1656.67 ft at 10:45PM May 19, 2019Observed: 1656.69 ft at 11:00PM May 19, 2019Observed: 1656.66 ft at 11:15PM May 19, 2019Observed: 1656.68 ft at 11:30PM May 19, 2019Observed: 1656.67 ft at 11:45PM May 19, 2019Observed: 1656.68 ft at 12:00AM May 20, 2019Observed: 1656.67 ft at 12:15AM May 20, 2019Observed: 1656.68 ft at 12:30AM May 20, 2019Observed: 1656.67 ft at 12:45AM May 20, 2019Observed: 1656.68 ft at 1:00AM May 20, 2019Observed: 1656.67 ft at 1:15AM May 20, 2019Observed: 1656.66 ft at 1:30AM May 20, 2019Observed: 1656.67 ft at 1:45AM May 20, 2019Observed: 1656.68 ft at 2:00AM May 20, 2019Observed: 1656.68 ft at 2:15AM May 20, 2019Observed: 1656.68 ft at 2:30AM May 20, 2019Observed: 1656.67 ft at 2:45AM May 20, 2019Observed: 1656.67 ft at 3:00AM May 20, 2019Observed: 1656.66 ft at 3:15AM May 20, 2019Observed: 1656.67 ft at 3:30AM May 20, 2019Observed: 1656.64 ft at 3:45AM May 20, 2019Observed: 1656.67 ft at 4:00AM May 20, 2019Observed: 1656.68 ft at 4:15AM May 20, 2019Observed: 1656.67 ft at 4:30AM May 20, 2019Observed: 1656.68 ft at 4:45AM May 20, 2019Observed: 1656.67 ft at 5:00AM May 20, 2019Observed: 1656.68 ft at 5:15AM May 20, 2019Observed: 1656.67 ft at 5:30AM May 20, 2019Observed: 1656.68 ft at 5:45AM May 20, 2019Observed: 1656.68 ft at 6:00AM May 20, 2019Observed: 1656.67 ft at 6:15AM May 20, 2019Observed: 1656.68 ft at 6:30AM May 20, 2019Observed: 1656.68 ft at 6:45AM May 20, 2019Observed: 1656.69 ft at 7:00AM May 20, 2019Observed: 1656.67 ft at 7:15AM May 20, 2019Observed: 1656.68 ft at 7:30AM May 20, 2019Observed: 1656.66 ft at 7:45AM May 20, 2019Observed: 1656.66 ft at 8:00AM May 20, 2019Observed: 1656.67 ft at 8:15AM May 20, 2019Observed: 1656.67 ft at 8:30AM May 20, 2019Observed: 1656.67 ft at 8:45AM May 20, 2019Observed: 1656.67 ft at 9:00AM May 20, 2019Observed: 1656.67 ft at 9:15AM May 20, 2019Observed: 1656.67 ft at 9:30AM May 20, 2019Observed: 1656.67 ft at 9:45AM May 20, 2019Observed: 1656.67 ft at 10:00AM May 20, 2019Observed: 1656.65 ft at 10:15AM May 20, 2019Observed: 1656.65 ft at 10:30AM May 20, 2019Observed: 1656.66 ft at 10:45AM May 20, 2019Observed: 1656.66 ft at 11:00AM May 20, 2019Observed: 1656.67 ft at 11:15AM May 20, 2019Observed: 1656.65 ft at 11:30AM May 20, 2019Observed: 1656.66 ft at 11:45AM May 20, 2019Observed: 1656.63 ft at 12:00PM May 20, 2019Observed: 1656.64 ft at 12:15PM May 20, 2019Observed: 1656.63 ft at 12:30PM May 20, 2019Observed: 1656.63 ft at 12:45PM May 20, 2019Observed: 1656.64 ft at 1:00PM May 20, 2019Observed: 1656.64 ft at 1:15PM May 20, 2019Observed: 1656.64 ft at 1:30PM May 20, 2019Observed: 1656.64 ft at 1:45PM May 20, 2019Observed: 1656.65 ft at 2:00PM May 20, 2019Observed: 1656.64 ft at 2:15PM May 20, 2019Observed: 1656.65 ft at 2:30PM May 20, 2019Observed: 1656.63 ft at 2:45PM May 20, 2019Observed: 1656.62 ft at 3:00PM May 20, 2019Observed: 1656.64 ft at 3:15PM May 20, 2019Observed: 1656.64 ft at 3:30PM May 20, 2019Observed: 1656.64 ft at 3:45PM May 20, 2019Observed: 1656.63 ft at 4:00PM May 20, 2019Observed: 1656.62 ft at 4:15PM May 20, 2019Observed: 1656.63 ft at 4:30PM May 20, 2019Observed: 1656.64 ft at 4:45PM May 20, 2019Observed: 1656.62 ft at 5:00PM May 20, 2019Observed: 1656.63 ft at 5:15PM May 20, 2019Observed: 1656.64 ft at 5:30PM May 20, 2019Observed: 1656.63 ft at 5:45PM May 20, 2019Observed: 1656.63 ft at 6:00PM May 20, 2019Observed: 1656.64 ft at 6:15PM May 20, 2019Observed: 1656.62 ft at 6:30PM May 20, 2019Observed: 1656.61 ft at 6:45PM May 20, 2019Observed: 1656.64 ft at 7:00PM May 20, 2019Observed: 1656.61 ft at 7:15PM May 20, 2019Observed: 1656.65 ft at 7:30PM May 20, 2019Observed: 1656.65 ft at 7:45PM May 20, 2019Observed: 1656.65 ft at 8:00PM May 20, 2019Observed: 1656.63 ft at 8:15PM May 20, 2019Observed: 1656.63 ft at 8:30PM May 20, 2019Observed: 1656.66 ft at 8:45PM May 20, 2019Observed: 1656.65 ft at 9:00PM May 20, 2019Observed: 1656.65 ft at 9:15PM May 20, 2019Observed: 1656.64 ft at 9:30PM May 20, 2019Observed: 1656.66 ft at 9:45PM May 20, 2019Observed: 1656.66 ft at 10:00PM May 20, 2019Observed: 1656.66 ft at 10:15PM May 20, 2019Observed: 1656.66 ft at 10:30PM May 20, 2019Observed: 1656.65 ft at 10:45PM May 20, 2019Observed: 1656.66 ft at 11:00PM May 20, 2019Observed: 1656.66 ft at 11:15PM May 20, 2019Observed: 1656.66 ft at 11:30PM May 20, 2019Observed: 1656.64 ft at 11:45PM May 20, 2019Observed: 1656.64 ft at 12:00AM May 21, 2019Observed: 1656.65 ft at 12:15AM May 21, 2019Observed: 1656.65 ft at 12:30AM May 21, 2019Observed: 1656.65 ft at 12:45AM May 21, 2019Observed: 1656.66 ft at 1:00AM May 21, 2019Observed: 1656.66 ft at 1:15AM May 21, 2019Observed: 1656.65 ft at 1:30AM May 21, 2019Observed: 1656.67 ft at 1:45AM May 21, 2019Observed: 1656.65 ft at 2:00AM May 21, 2019Observed: 1656.65 ft at 2:15AM May 21, 2019Observed: 1656.66 ft at 2:30AM May 21, 2019Observed: 1656.63 ft at 2:45AM May 21, 2019Observed: 1656.66 ft at 3:00AM May 21, 2019Observed: 1656.66 ft at 3:15AM May 21, 2019Observed: 1656.65 ft at 3:30AM May 21, 2019Observed: 1656.66 ft at 3:45AM May 21, 2019Observed: 1656.64 ft at 4:00AM May 21, 2019Observed: 1656.65 ft at 4:15AM May 21, 2019Observed: 1656.63 ft at 4:30AM May 21, 2019Observed: 1656.64 ft at 4:45AM May 21, 2019Observed: 1656.64 ft at 5:00AM May 21, 2019Observed: 1656.63 ft at 5:15AM May 21, 2019Observed: 1656.63 ft at 5:30AM May 21, 2019Observed: 1656.63 ft at 5:45AM May 21, 2019Observed: 1656.63 ft at 6:00AM May 21, 2019Observed: 1656.63 ft at 6:15AM May 21, 2019Observed: 1656.64 ft at 6:30AM May 21, 2019Observed: 1656.63 ft at 6:45AM May 21, 2019Observed: 1656.62 ft at 7:00AM May 21, 2019Observed: 1656.64 ft at 7:15AM May 21, 2019Observed: 1656.63 ft at 7:30AM May 21, 2019Observed: 1656.63 ft at 7:45AM May 21, 2019Observed: 1656.63 ft at 8:00AM May 21, 2019Observed: 1656.64 ft at 8:15AM May 21, 2019Observed: 1656.63 ft at 8:30AM May 21, 2019Observed: 1656.63 ft at 8:45AM May 21, 2019Observed: 1656.63 ft at 9:00AM May 21, 2019Observed: 1656.63 ft at 9:15AM May 21, 2019Observed: 1656.62 ft at 9:30AM May 21, 2019Observed: 1656.62 ft at 9:45AM May 21, 2019Observed: 1656.61 ft at 10:00AM May 21, 2019Observed: 1656.62 ft at 10:15AM May 21, 2019Observed: 1656.61 ft at 10:30AM May 21, 2019Observed: 1656.59 ft at 10:45AM May 21, 2019Observed: 1656.6 ft at 11:00AM May 21, 2019Observed: 1656.58 ft at 11:15AM May 21, 2019Observed: 1656.58 ft at 11:30AM May 21, 2019Observed: 1656.58 ft at 11:45AM May 21, 2019Observed: 1656.57 ft at 12:00PM May 21, 2019Observed: 1656.56 ft at 12:15PM May 21, 2019Observed: 1656.57 ft at 12:30PM May 21, 2019Observed: 1656.56 ft at 12:45PM May 21, 2019Observed: 1656.59 ft at 1:00PM May 21, 2019Observed: 1656.58 ft at 1:15PM May 21, 2019Observed: 1656.58 ft at 1:30PM May 21, 2019Observed: 1656.58 ft at 1:45PM May 21, 2019Observed: 1656.56 ft at 2:00PM May 21, 2019PONS2(plotting HLIRG) Graph Created (3:30PM May 21, 2019)ObservedLatest observed value: 1656.56 ft at 2:00 PM CDT 21-May-2019.
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Tabular Data (UTC)
Tabular Data (CDT)
XML Data
RSS Files
Datum: Not Available
Metadata
NOTE: Graphical forecasts are not available for the Big Sioux River at Lake Poinsett Inlet/Outlet. During times of high water, forecast crest information can be found in the text products.
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Upstream Gauge - near Castlewood Upstream Gauge Downstream Gauge Downstream Gauge - near Estelline
Flood Categories (in feet)
Major Flood Stage: 0
Moderate Flood Stage: 0
Flood Stage: 0
Action Stage: 1651.5
Low Stage (in feet): -9999

Historic Crests
(1) 1,657.60 ft on 04/05/2011
(2) 1,656.44 ft on 07/17/2010
(3) 1,656.20 ft on 05/12/1997
(4) 1,655.50 ft on 05/02/2001
(5) 1,654.50 ft on 05/07/1985
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 1,651.29 ft on 10/08/2015
(2) 1,652.04 ft on 05/12/2014
(3) 1,650.93 ft on 10/28/2013
(4) 1,652.73 ft on 04/30/2012
(5) 1,657.60 ft on 04/05/2011
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.
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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
1657 Highway 81 on the west side of Lake Poinsett begins to flood.
1651.5 Lake poinsett is considered full
1650.5 Lake outlet elevation
About This Location Collapse

Latitude: 44.596111° N, Longitude: 97.027500° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame		 Gauge Height Flood Stage Uses
NWS stage 0 ft Not Available 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 Not Available Not Available  
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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
Aberdeen Weather Forecast Office
824 Brown County 14 South
Aberdeen, SD 57401
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