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Hydrograph River at a Glance Download
Big Sioux River above Hawarden Stage (ft)Flow (cfs)Highest Observation: 18.17 ft at 6:00PM Jan 08, 2019Observed: 18.16 ft at 6:15PM Jan 08, 2019Observed: 18.15 ft at 6:30PM Jan 08, 2019Observed: 18.12 ft at 6:45PM Jan 08, 2019Observed: 18.13 ft at 7:00PM Jan 08, 2019Observed: 18.12 ft at 7:15PM Jan 08, 2019Observed: 18.12 ft at 7:30PM Jan 08, 2019Observed: 18.09 ft at 7:45PM Jan 08, 2019Observed: 18.1 ft at 8:00PM Jan 08, 2019Observed: 18.07 ft at 8:15PM Jan 08, 2019Observed: 18.06 ft at 8:30PM Jan 08, 2019Observed: 18.06 ft at 8:45PM Jan 08, 2019Observed: 18.05 ft at 9:00PM Jan 08, 2019Observed: 18.04 ft at 9:15PM Jan 08, 2019Observed: 18.03 ft at 9:30PM Jan 08, 2019Observed: 18.03 ft at 9:45PM Jan 08, 2019Observed: 18 ft at 10:00PM Jan 08, 2019Observed: 17.99 ft at 10:15PM Jan 08, 2019Observed: 18 ft at 10:30PM Jan 08, 2019Observed: 17.99 ft at 10:45PM Jan 08, 2019Observed: 18 ft at 11:00PM Jan 08, 2019Observed: 18 ft at 11:01PM Jan 08, 2019Observed: 18 ft at 11:15PM Jan 08, 2019Observed: 18 ft at 11:16PM Jan 08, 2019Observed: 17.98 ft at 11:30PM Jan 08, 2019Observed: 17.98 ft at 11:31PM Jan 08, 2019Observed: 17.98 ft at 11:45PM Jan 08, 2019Observed: 17.99 ft at 12:00AM Jan 09, 2019Observed: 17.97 ft at 12:15AM Jan 09, 2019Observed: 17.97 ft at 12:30AM Jan 09, 2019Observed: 17.96 ft at 12:45AM Jan 09, 2019Observed: 17.98 ft at 1:00AM Jan 09, 2019Observed: 17.97 ft at 1:15AM Jan 09, 2019Observed: 17.95 ft at 1:30AM Jan 09, 2019Observed: 17.96 ft at 1:45AM Jan 09, 2019Observed: 17.96 ft at 2:00AM Jan 09, 2019Observed: 17.97 ft at 2:15AM Jan 09, 2019Observed: 17.94 ft at 2:30AM Jan 09, 2019Observed: 17.96 ft at 2:45AM Jan 09, 2019Observed: 17.95 ft at 3:00AM Jan 09, 2019Observed: 17.95 ft at 3:15AM Jan 09, 2019Observed: 17.93 ft at 3:30AM Jan 09, 2019Observed: 17.93 ft at 3:45AM Jan 09, 2019Observed: 17.92 ft at 4:00AM Jan 09, 2019Observed: 17.92 ft at 4:15AM Jan 09, 2019Observed: 17.93 ft at 4:30AM Jan 09, 2019Observed: 17.89 ft at 4:45AM Jan 09, 2019Observed: 17.91 ft at 5:00AM Jan 09, 2019Observed: 17.88 ft at 5:15AM Jan 09, 2019Observed: 17.86 ft at 5:30AM Jan 09, 2019Observed: 17.87 ft at 5:45AM Jan 09, 2019Observed: 17.85 ft at 6:00AM Jan 09, 2019Observed: 17.85 ft at 6:15AM Jan 09, 2019Observed: 17.82 ft at 6:30AM Jan 09, 2019Observed: 17.82 ft at 6:45AM Jan 09, 2019Observed: 17.8 ft at 7:00AM Jan 09, 2019Observed: 17.79 ft at 7:15AM Jan 09, 2019Observed: 17.75 ft at 7:30AM Jan 09, 2019Observed: 17.76 ft at 7:45AM Jan 09, 2019Observed: 17.75 ft at 8:00AM Jan 09, 2019Observed: 17.73 ft at 8:15AM Jan 09, 2019Observed: 17.71 ft at 8:30AM Jan 09, 2019Observed: 17.71 ft at 8:45AM Jan 09, 2019Observed: 17.69 ft at 9:00AM Jan 09, 2019Observed: 17.68 ft at 9:15AM Jan 09, 2019Observed: 17.67 ft at 9:30AM Jan 09, 2019Observed: 17.66 ft at 9:45AM Jan 09, 2019Observed: 17.64 ft at 10:00AM Jan 09, 2019Observed: 17.61 ft at 10:15AM Jan 09, 2019Observed: 17.62 ft at 10:30AM Jan 09, 2019Observed: 17.58 ft at 10:45AM Jan 09, 2019Observed: 17.55 ft at 11:00AM Jan 09, 2019Observed: 17.57 ft at 11:15AM Jan 09, 2019Observed: 17.56 ft at 11:30AM Jan 09, 2019Observed: 17.54 ft at 11:45AM Jan 09, 2019Observed: 17.52 ft at 12:00PM Jan 09, 2019Observed: 17.52 ft at 12:15PM Jan 09, 2019Observed: 17.52 ft at 12:30PM Jan 09, 2019Observed: 17.5 ft at 12:45PM Jan 09, 2019Observed: 17.49 ft at 1:00PM Jan 09, 2019Observed: 17.49 ft at 1:15PM Jan 09, 2019Observed: 17.48 ft at 1:30PM Jan 09, 2019Observed: 17.48 ft at 1:45PM Jan 09, 2019Observed: 17.47 ft at 2:00PM Jan 09, 2019Observed: 17.49 ft at 2:15PM Jan 09, 2019Observed: 17.47 ft at 2:30PM Jan 09, 2019Observed: 17.47 ft at 2:45PM Jan 09, 2019Observed: 17.47 ft at 3:00PM Jan 09, 2019Observed: 17.47 ft at 3:01PM Jan 09, 2019Observed: 17.47 ft at 3:15PM Jan 09, 2019Observed: 17.47 ft at 3:16PM Jan 09, 2019Observed: 17.47 ft at 3:30PM Jan 09, 2019Observed: 17.47 ft at 3:31PM Jan 09, 2019Observed: 17.46 ft at 3:45PM Jan 09, 2019Observed: 17.47 ft at 4:00PM Jan 09, 2019Observed: 17.47 ft at 4:15PM Jan 09, 2019Observed: 17.47 ft at 4:30PM Jan 09, 2019Observed: 17.47 ft at 4:45PM Jan 09, 2019Observed: 17.47 ft at 5:00PM Jan 09, 2019Observed: 17.46 ft at 5:15PM Jan 09, 2019Observed: 17.46 ft at 5:30PM Jan 09, 2019Observed: 17.44 ft at 5:45PM Jan 09, 2019Observed: 17.44 ft at 6:00PM Jan 09, 2019Observed: 17.43 ft at 6:15PM Jan 09, 2019Observed: 17.42 ft at 6:30PM Jan 09, 2019Observed: 17.4 ft at 6:45PM Jan 09, 2019Observed: 17.39 ft at 7:00PM Jan 09, 2019Observed: 17.38 ft at 7:15PM Jan 09, 2019Observed: 17.35 ft at 7:30PM Jan 09, 2019Observed: 17.35 ft at 7:45PM Jan 09, 2019Observed: 17.34 ft at 8:00PM Jan 09, 2019Observed: 17.31 ft at 8:15PM Jan 09, 2019Observed: 17.32 ft at 8:30PM Jan 09, 2019Observed: 17.3 ft at 8:45PM Jan 09, 2019Observed: 17.29 ft at 9:00PM Jan 09, 2019Observed: 17.27 ft at 9:15PM Jan 09, 2019Observed: 17.25 ft at 9:30PM Jan 09, 2019Observed: 17.25 ft at 9:45PM Jan 09, 2019Observed: 17.22 ft at 10:00PM Jan 09, 2019Observed: 17.19 ft at 10:15PM Jan 09, 2019Observed: 17.17 ft at 10:30PM Jan 09, 2019Observed: 17.18 ft at 10:45PM Jan 09, 2019Observed: 17.16 ft at 11:00PM Jan 09, 2019Observed: 17.16 ft at 11:01PM Jan 09, 2019Observed: 17.14 ft at 11:15PM Jan 09, 2019Observed: 17.14 ft at 11:16PM Jan 09, 2019Observed: 17.15 ft at 11:30PM Jan 09, 2019Observed: 17.15 ft at 11:31PM Jan 09, 2019Observed: 17.12 ft at 11:45PM Jan 09, 2019Observed: 17.12 ft at 12:00AM Jan 10, 2019Observed: 17.11 ft at 12:15AM Jan 10, 2019Observed: 17.11 ft at 12:30AM Jan 10, 2019Observed: 17.11 ft at 12:45AM Jan 10, 2019Observed: 17.09 ft at 1:00AM Jan 10, 2019Observed: 17.11 ft at 1:15AM Jan 10, 2019Observed: 17.09 ft at 1:30AM Jan 10, 2019Observed: 17.09 ft at 1:45AM Jan 10, 2019Observed: 17.08 ft at 2:00AM Jan 10, 2019Observed: 17.06 ft at 2:15AM Jan 10, 2019Observed: 17.06 ft at 2:30AM Jan 10, 2019Observed: 17.05 ft at 2:45AM Jan 10, 2019Observed: 17.05 ft at 3:00AM Jan 10, 2019Observed: 17.04 ft at 3:15AM Jan 10, 2019Observed: 17.04 ft at 3:30AM Jan 10, 2019Observed: 17.01 ft at 3:45AM Jan 10, 2019Observed: 17 ft at 4:00AM Jan 10, 2019Observed: 16.98 ft at 4:15AM Jan 10, 2019Observed: 16.97 ft at 4:30AM Jan 10, 2019Observed: 16.95 ft at 4:45AM Jan 10, 2019Observed: 16.93 ft at 5:00AM Jan 10, 2019Observed: 16.92 ft at 5:15AM Jan 10, 2019Observed: 16.9 ft at 5:30AM Jan 10, 2019Observed: 16.89 ft at 5:45AM Jan 10, 2019Observed: 16.89 ft at 6:00AM Jan 10, 2019Observed: 16.88 ft at 6:15AM Jan 10, 2019Observed: 16.86 ft at 6:30AM Jan 10, 2019Observed: 16.86 ft at 6:45AM Jan 10, 2019Observed: 16.86 ft at 7:00AM Jan 10, 2019Observed: 16.86 ft at 7:15AM Jan 10, 2019Observed: 16.86 ft at 7:30AM Jan 10, 2019Observed: 16.86 ft at 7:45AM Jan 10, 2019Observed: 16.87 ft at 8:00AM Jan 10, 2019Observed: 16.87 ft at 8:15AM Jan 10, 2019Observed: 16.86 ft at 8:30AM Jan 10, 2019Observed: 16.86 ft at 8:45AM Jan 10, 2019Observed: 16.84 ft at 9:00AM Jan 10, 2019Observed: 16.84 ft at 9:15AM Jan 10, 2019Observed: 16.83 ft at 9:30AM Jan 10, 2019Observed: 16.83 ft at 9:45AM Jan 10, 2019Observed: 16.83 ft at 10:00AM Jan 10, 2019Observed: 16.81 ft at 10:15AM Jan 10, 2019Observed: 16.8 ft at 10:30AM Jan 10, 2019Observed: 16.79 ft at 10:45AM Jan 10, 2019Observed: 16.78 ft at 11:00AM Jan 10, 2019Observed: 16.74 ft at 11:15AM Jan 10, 2019Observed: 16.71 ft at 11:30AM Jan 10, 2019Observed: 16.71 ft at 11:45AM Jan 10, 2019Observed: 16.71 ft at 12:00PM Jan 10, 2019Observed: 16.71 ft at 12:15PM Jan 10, 2019Observed: 16.72 ft at 12:30PM Jan 10, 2019Observed: 16.72 ft at 12:45PM Jan 10, 2019Observed: 16.73 ft at 1:00PM Jan 10, 2019Observed: 16.72 ft at 1:15PM Jan 10, 2019Observed: 16.73 ft at 1:30PM Jan 10, 2019Observed: 16.72 ft at 1:45PM Jan 10, 2019Observed: 16.72 ft at 2:00PM Jan 10, 2019Observed: 16.73 ft at 2:15PM Jan 10, 2019Observed: 16.71 ft at 2:30PM Jan 10, 2019Observed: 16.71 ft at 2:45PM Jan 10, 2019Observed: 16.68 ft at 3:00PM Jan 10, 2019Observed: 16.68 ft at 3:01PM Jan 10, 2019Observed: 16.7 ft at 3:15PM Jan 10, 2019Observed: 16.7 ft at 3:16PM Jan 10, 2019Observed: 16.7 ft at 3:30PM Jan 10, 2019Observed: 16.7 ft at 3:31PM Jan 10, 2019Observed: 16.68 ft at 3:45PM Jan 10, 2019Observed: 16.68 ft at 4:00PM Jan 10, 2019Observed: 16.67 ft at 4:15PM Jan 10, 2019Observed: 16.66 ft at 4:30PM Jan 10, 2019Observed: 16.67 ft at 4:45PM Jan 10, 2019Observed: 16.67 ft at 5:00PM Jan 10, 2019Observed: 16.67 ft at 5:15PM Jan 10, 2019Observed: 16.68 ft at 5:30PM Jan 10, 2019Observed: 16.66 ft at 5:45PM Jan 10, 2019Observed: 16.68 ft at 6:00PM Jan 10, 2019Observed: 16.68 ft at 6:15PM Jan 10, 2019Observed: 16.68 ft at 6:30PM Jan 10, 2019Observed: 16.66 ft at 6:45PM Jan 10, 2019Observed: 16.65 ft at 7:00PM Jan 10, 2019Observed: 16.66 ft at 7:15PM Jan 10, 2019Observed: 16.65 ft at 7:30PM Jan 10, 2019Observed: 16.65 ft at 7:45PM Jan 10, 2019Observed: 16.63 ft at 8:00PM Jan 10, 2019Observed: 16.61 ft at 8:15PM Jan 10, 2019Observed: 16.61 ft at 8:30PM Jan 10, 2019Observed: 16.59 ft at 8:45PM Jan 10, 2019Observed: 16.61 ft at 9:00PM Jan 10, 2019Observed: 16.6 ft at 9:15PM Jan 10, 2019Observed: 16.6 ft at 9:30PM Jan 10, 2019Observed: 16.59 ft at 9:45PM Jan 10, 2019Observed: 16.6 ft at 10:00PM Jan 10, 2019Observed: 16.6 ft at 10:15PM Jan 10, 2019Observed: 16.61 ft at 10:30PM Jan 10, 2019Observed: 16.61 ft at 10:45PM Jan 10, 2019Observed: 16.61 ft at 11:00PM Jan 10, 2019Observed: 16.61 ft at 11:15PM Jan 10, 2019Observed: 16.62 ft at 11:30PM Jan 10, 2019Observed: 16.62 ft at 11:45PM Jan 10, 2019Observed: 16.61 ft at 12:00AM Jan 11, 2019Observed: 16.63 ft at 12:15AM Jan 11, 2019Observed: 16.63 ft at 12:30AM Jan 11, 2019Observed: 16.66 ft at 12:45AM Jan 11, 2019Observed: 16.65 ft at 1:00AM Jan 11, 2019Observed: 16.66 ft at 1:15AM Jan 11, 2019Observed: 16.67 ft at 1:30AM Jan 11, 2019Observed: 16.67 ft at 1:45AM Jan 11, 2019Observed: 16.68 ft at 2:00AM Jan 11, 2019Observed: 16.7 ft at 2:15AM Jan 11, 2019Observed: 16.69 ft at 2:30AM Jan 11, 2019Observed: 16.7 ft at 2:45AM Jan 11, 2019Observed: 16.7 ft at 3:00AM Jan 11, 2019Observed: 16.72 ft at 3:15AM Jan 11, 2019Observed: 16.71 ft at 3:30AM Jan 11, 2019Observed: 16.72 ft at 3:45AM Jan 11, 2019Observed: 16.73 ft at 4:00AM Jan 11, 2019Observed: 16.73 ft at 4:15AM Jan 11, 2019Observed: 16.73 ft at 4:30AM Jan 11, 2019Observed: 16.74 ft at 4:45AM Jan 11, 2019Observed: 16.74 ft at 5:00AM Jan 11, 2019Observed: 16.76 ft at 5:15AM Jan 11, 2019Observed: 16.77 ft at 5:30AM Jan 11, 2019Observed: 16.77 ft at 5:45AM Jan 11, 2019Observed: 16.78 ft at 6:00AM Jan 11, 2019Observed: 16.77 ft at 6:15AM Jan 11, 2019Observed: 16.78 ft at 6:30AM Jan 11, 2019Observed: 16.79 ft at 6:45AM Jan 11, 2019Observed: 16.8 ft at 7:00AM Jan 11, 2019Observed: 16.82 ft at 7:15AM Jan 11, 2019Observed: 16.83 ft at 7:30AM Jan 11, 2019Observed: 16.81 ft at 7:45AM Jan 11, 2019Observed: 16.83 ft at 8:00AM Jan 11, 2019Observed: 16.82 ft at 8:15AM Jan 11, 2019Observed: 16.83 ft at 8:30AM Jan 11, 2019Observed: 16.84 ft at 8:45AM Jan 11, 2019Observed: 16.84 ft at 9:00AM Jan 11, 2019Observed: 16.84 ft at 9:15AM Jan 11, 2019Observed: 16.85 ft at 9:30AM Jan 11, 2019Observed: 16.83 ft at 9:45AM Jan 11, 2019Observed: 16.86 ft at 10:00AM Jan 11, 2019Observed: 16.85 ft at 10:15AM Jan 11, 2019Observed: 16.86 ft at 10:30AM Jan 11, 2019Observed: 16.86 ft at 10:45AM Jan 11, 2019Observed: 16.88 ft at 11:00AM Jan 11, 2019Observed: 16.85 ft at 11:15AM Jan 11, 2019Observed: 16.87 ft at 11:30AM Jan 11, 2019Observed: 16.87 ft at 11:45AM Jan 11, 2019Observed: 16.85 ft at 12:00PM Jan 11, 2019Observed: 16.84 ft at 12:15PM Jan 11, 2019Observed: 16.84 ft at 12:30PM Jan 11, 2019Observed: 16.84 ft at 12:45PM Jan 11, 2019Observed: 16.84 ft at 1:00PM Jan 11, 2019Observed: 16.86 ft at 1:15PM Jan 11, 2019Observed: 16.84 ft at 1:30PM Jan 11, 2019Observed: 16.86 ft at 1:45PM Jan 11, 2019Observed: 16.87 ft at 2:00PM Jan 11, 2019Observed: 16.87 ft at 2:15PM Jan 11, 2019Observed: 16.88 ft at 2:30PM Jan 11, 2019Observed: 16.91 ft at 2:45PM Jan 11, 2019Observed: 16.91 ft at 3:00PM Jan 11, 2019Observed: 16.91 ft at 3:01PM Jan 11, 2019Observed: 16.9 ft at 3:15PM Jan 11, 2019Observed: 16.9 ft at 3:16PM Jan 11, 2019Observed: 16.89 ft at 3:30PM Jan 11, 2019Observed: 16.89 ft at 3:31PM Jan 11, 2019Observed: 16.9 ft at 3:45PM Jan 11, 2019Observed: 16.91 ft at 4:00PM Jan 11, 2019Observed: 16.91 ft at 4:15PM Jan 11, 2019Observed: 16.91 ft at 4:30PM Jan 11, 2019Observed: 16.92 ft at 4:45PM Jan 11, 2019Observed: 16.91 ft at 5:00PM Jan 11, 2019Observed: 16.91 ft at 5:15PM Jan 11, 2019Observed: 16.93 ft at 5:30PM Jan 11, 2019Observed: 16.96 ft at 5:45PM Jan 11, 2019Observed: 16.93 ft at 6:00PM Jan 11, 2019Observed: 16.96 ft at 6:15PM Jan 11, 2019Observed: 16.95 ft at 6:30PM Jan 11, 2019Observed: 16.97 ft at 6:45PM Jan 11, 2019Observed: 16.95 ft at 7:00PM Jan 11, 2019Observed: 16.96 ft at 7:15PM Jan 11, 2019Observed: 16.96 ft at 7:30PM Jan 11, 2019Observed: 16.95 ft at 7:45PM Jan 11, 2019Observed: 16.98 ft at 8:00PM Jan 11, 2019Observed: 16.98 ft at 8:15PM Jan 11, 2019Observed: 16.98 ft at 8:30PM Jan 11, 2019Observed: 16.98 ft at 8:45PM Jan 11, 2019Observed: 16.99 ft at 9:00PM Jan 11, 2019Observed: 16.97 ft at 9:15PM Jan 11, 2019Observed: 16.99 ft at 9:30PM Jan 11, 2019Observed: 16.98 ft at 9:45PM Jan 11, 2019Observed: 16.98 ft at 10:00PM Jan 11, 2019Observed: 16.99 ft at 10:15PM Jan 11, 2019Observed: 16.99 ft at 10:30PM Jan 11, 2019Observed: 16.98 ft at 10:45PM Jan 11, 2019Observed: 16.96 ft at 11:00PM Jan 11, 2019Observed: 16.96 ft at 11:02PM Jan 11, 2019Observed: 17 ft at 11:15PM Jan 11, 2019Observed: 17 ft at 11:17PM Jan 11, 2019Observed: 16.98 ft at 11:30PM Jan 11, 2019Observed: 16.98 ft at 11:32PM Jan 11, 2019Observed: 16.99 ft at 11:45PM Jan 11, 2019Observed: 16.99 ft at 12:00AM Jan 12, 2019Observed: 16.99 ft at 12:15AM Jan 12, 2019Observed: 16.99 ft at 12:30AM Jan 12, 2019Observed: 16.99 ft at 12:45AM Jan 12, 2019Observed: 16.99 ft at 1:00AM Jan 12, 2019Observed: 16.99 ft at 1:15AM Jan 12, 2019Observed: 17 ft at 1:30AM Jan 12, 2019Observed: 17.01 ft at 1:45AM Jan 12, 2019Observed: 16.99 ft at 2:00AM Jan 12, 2019Observed: 17.01 ft at 2:15AM Jan 12, 2019Observed: 17 ft at 2:30AM Jan 12, 2019Observed: 17 ft at 2:45AM Jan 12, 2019Observed: 17.02 ft at 3:00AM Jan 12, 2019Observed: 17.01 ft at 3:15AM Jan 12, 2019Observed: 17 ft at 3:30AM Jan 12, 2019Observed: 17.03 ft at 3:45AM Jan 12, 2019Observed: 17.01 ft at 4:00AM Jan 12, 2019Observed: 17 ft at 4:15AM Jan 12, 2019Observed: 17.02 ft at 4:30AM Jan 12, 2019Observed: 17.01 ft at 4:45AM Jan 12, 2019Observed: 17.02 ft at 5:00AM Jan 12, 2019Observed: 17.03 ft at 5:15AM Jan 12, 2019Observed: 17.03 ft at 5:30AM Jan 12, 2019Observed: 17 ft at 5:45AM Jan 12, 2019Observed: 17.01 ft at 6:00AM Jan 12, 2019Observed: 17.01 ft at 6:15AM Jan 12, 2019Observed: 17.03 ft at 6:30AM Jan 12, 2019Observed: 17 ft at 6:45AM Jan 12, 2019Observed: 17.03 ft at 7:00AM Jan 12, 2019Observed: 17.05 ft at 7:15AM Jan 12, 2019Observed: 17.05 ft at 7:16AM Jan 12, 2019Observed: 17.01 ft at 7:30AM Jan 12, 2019Observed: 17.01 ft at 7:31AM Jan 12, 2019Observed: 17.03 ft at 7:45AM Jan 12, 2019Observed: 17.03 ft at 7:46AM Jan 12, 2019Observed: 17.03 ft at 8:00AM Jan 12, 2019Observed: 17.02 ft at 8:15AM Jan 12, 2019Observed: 17.03 ft at 8:30AM Jan 12, 2019Observed: 17.01 ft at 8:45AM Jan 12, 2019Observed: 17.01 ft at 9:00AM Jan 12, 2019Observed: 17.01 ft at 9:15AM Jan 12, 2019Observed: 17 ft at 9:30AM Jan 12, 2019Observed: 17 ft at 9:45AM Jan 12, 2019Observed: 17.03 ft at 10:00AM Jan 12, 2019Observed: 16.98 ft at 10:15AM Jan 12, 2019Observed: 17 ft at 10:30AM Jan 12, 2019Observed: 16.99 ft at 10:45AM Jan 12, 2019Observed: 16.98 ft at 11:00AM Jan 12, 2019Observed: 16.96 ft at 11:15AM Jan 12, 2019Observed: 16.97 ft at 11:30AM Jan 12, 2019Observed: 16.96 ft at 11:45AM Jan 12, 2019Observed: 16.96 ft at 12:00PM Jan 12, 2019Observed: 16.95 ft at 12:15PM Jan 12, 2019Observed: 16.93 ft at 12:30PM Jan 12, 2019Observed: 16.94 ft at 12:45PM Jan 12, 2019Observed: 16.94 ft at 1:00PM Jan 12, 2019Observed: 16.93 ft at 1:15PM Jan 12, 2019Observed: 16.94 ft at 1:30PM Jan 12, 2019Observed: 16.94 ft at 1:45PM Jan 12, 2019Observed: 16.94 ft at 2:00PM Jan 12, 2019Observed: 16.92 ft at 2:15PM Jan 12, 2019Observed: 16.92 ft at 2:30PM Jan 12, 2019Observed: 16.9 ft at 2:45PM Jan 12, 2019Observed: 16.91 ft at 3:00PM Jan 12, 2019Observed: 16.91 ft at 3:15PM Jan 12, 2019Observed: 16.91 ft at 3:16PM Jan 12, 2019Observed: 16.92 ft at 3:30PM Jan 12, 2019Observed: 16.92 ft at 3:31PM Jan 12, 2019Observed: 16.89 ft at 3:45PM Jan 12, 2019Observed: 16.89 ft at 3:46PM Jan 12, 2019Observed: 16.89 ft at 4:00PM Jan 12, 2019Observed: 16.89 ft at 4:15PM Jan 12, 2019Observed: 16.86 ft at 4:30PM Jan 12, 2019Observed: 16.86 ft at 4:45PM Jan 12, 2019Observed: 16.89 ft at 5:00PM Jan 12, 2019Observed: 16.87 ft at 5:15PM Jan 12, 2019Observed: 16.85 ft at 5:30PM Jan 12, 2019Observed: 16.86 ft at 5:45PM Jan 12, 2019Observed: 16.84 ft at 6:00PM Jan 12, 2019Observed: 16.83 ft at 6:15PM Jan 12, 2019Observed: 16.85 ft at 6:30PM Jan 12, 2019Observed: 16.83 ft at 6:45PM Jan 12, 2019Observed: 16.82 ft at 7:00PM Jan 12, 2019Observed: 16.82 ft at 7:15PM Jan 12, 2019Observed: 16.83 ft at 7:30PM Jan 12, 2019Observed: 16.81 ft at 7:45PM Jan 12, 2019Observed: 16.79 ft at 8:00PM Jan 12, 2019Observed: 16.81 ft at 8:15PM Jan 12, 2019Observed: 16.8 ft at 8:30PM Jan 12, 2019Observed: 16.77 ft at 8:45PM Jan 12, 2019Observed: 16.78 ft at 9:00PM Jan 12, 2019Observed: 16.78 ft at 9:15PM Jan 12, 2019Observed: 16.78 ft at 9:30PM Jan 12, 2019Observed: 16.77 ft at 9:45PM Jan 12, 2019Observed: 16.76 ft at 10:00PM Jan 12, 2019Observed: 16.77 ft at 10:15PM Jan 12, 2019Observed: 16.76 ft at 10:30PM Jan 12, 2019Observed: 16.76 ft at 10:45PM Jan 12, 2019Observed: 16.75 ft at 11:00PM Jan 12, 2019Observed: 16.74 ft at 11:15PM Jan 12, 2019Observed: 16.74 ft at 11:16PM Jan 12, 2019Observed: 16.75 ft at 11:30PM Jan 12, 2019Observed: 16.75 ft at 11:31PM Jan 12, 2019Observed: 16.74 ft at 11:45PM Jan 12, 2019Observed: 16.74 ft at 11:46PM Jan 12, 2019Observed: 16.75 ft at 12:00AM Jan 13, 2019Observed: 16.75 ft at 12:15AM Jan 13, 2019Observed: 16.73 ft at 12:30AM Jan 13, 2019Observed: 16.72 ft at 12:45AM Jan 13, 2019Observed: 16.72 ft at 1:00AM Jan 13, 2019Observed: 16.72 ft at 1:15AM Jan 13, 2019Observed: 16.71 ft at 1:30AM Jan 13, 2019Observed: 16.72 ft at 1:45AM Jan 13, 2019Observed: 16.73 ft at 2:00AM Jan 13, 2019Observed: 16.72 ft at 2:15AM Jan 13, 2019Observed: 16.7 ft at 2:30AM Jan 13, 2019Observed: 16.73 ft at 2:45AM Jan 13, 2019Observed: 16.72 ft at 3:00AM Jan 13, 2019Observed: 16.71 ft at 3:15AM Jan 13, 2019Observed: 16.72 ft at 3:30AM Jan 13, 2019Observed: 16.73 ft at 3:45AM Jan 13, 2019Observed: 16.73 ft at 4:00AM Jan 13, 2019Observed: 16.74 ft at 4:15AM Jan 13, 2019Observed: 16.73 ft at 4:30AM Jan 13, 2019Observed: 16.74 ft at 4:45AM Jan 13, 2019Observed: 16.74 ft at 5:00AM Jan 13, 2019Observed: 16.74 ft at 5:15AM Jan 13, 2019Observed: 16.74 ft at 5:30AM Jan 13, 2019Observed: 16.74 ft at 5:45AM Jan 13, 2019Observed: 16.74 ft at 6:00AM Jan 13, 2019Observed: 16.75 ft at 6:15AM Jan 13, 2019Observed: 16.76 ft at 6:30AM Jan 13, 2019Observed: 16.76 ft at 6:45AM Jan 13, 2019Observed: 16.76 ft at 7:00AM Jan 13, 2019Observed: 16.74 ft at 7:15AM Jan 13, 2019Observed: 16.74 ft at 7:17AM Jan 13, 2019Observed: 16.74 ft at 7:30AM Jan 13, 2019Observed: 16.74 ft at 7:32AM Jan 13, 2019Observed: 16.75 ft at 7:45AM Jan 13, 2019Observed: 16.75 ft at 7:47AM Jan 13, 2019Observed: 16.74 ft at 8:00AM Jan 13, 2019Observed: 16.75 ft at 8:15AM Jan 13, 2019Observed: 16.75 ft at 8:30AM Jan 13, 2019Observed: 16.75 ft at 8:45AM Jan 13, 2019Observed: 16.72 ft at 9:00AM Jan 13, 2019Observed: 16.73 ft at 9:15AM Jan 13, 2019Observed: 16.74 ft at 9:30AM Jan 13, 2019Observed: 16.73 ft at 9:45AM Jan 13, 2019Observed: 16.73 ft at 10:00AM Jan 13, 2019Observed: 16.73 ft at 10:15AM Jan 13, 2019Observed: 16.69 ft at 10:30AM Jan 13, 2019Observed: 16.71 ft at 10:45AM Jan 13, 2019Observed: 16.69 ft at 11:00AM Jan 13, 2019Observed: 16.7 ft at 11:15AM Jan 13, 2019Observed: 16.7 ft at 11:30AM Jan 13, 2019Observed: 16.68 ft at 11:45AM Jan 13, 2019Observed: 16.68 ft at 12:00PM Jan 13, 2019Observed: 16.67 ft at 12:15PM Jan 13, 2019Observed: 16.67 ft at 12:30PM Jan 13, 2019Observed: 16.66 ft at 12:45PM Jan 13, 2019Observed: 16.66 ft at 1:00PM Jan 13, 2019Observed: 16.65 ft at 1:15PM Jan 13, 2019Observed: 16.65 ft at 1:30PM Jan 13, 2019Observed: 16.65 ft at 1:45PM Jan 13, 2019Observed: 16.63 ft at 2:00PM Jan 13, 2019Observed: 16.65 ft at 2:15PM Jan 13, 2019Observed: 16.64 ft at 2:30PM Jan 13, 2019Observed: 16.64 ft at 2:45PM Jan 13, 2019Observed: 16.63 ft at 3:00PM Jan 13, 2019Observed: 16.61 ft at 3:15PM Jan 13, 2019Observed: 16.61 ft at 3:16PM Jan 13, 2019Observed: 16.62 ft at 3:30PM Jan 13, 2019Observed: 16.62 ft at 3:31PM Jan 13, 2019Observed: 16.62 ft at 3:45PM Jan 13, 2019Observed: 16.62 ft at 3:46PM Jan 13, 2019Observed: 16.63 ft at 4:00PM Jan 13, 2019Observed: 16.62 ft at 4:15PM Jan 13, 2019Observed: 16.62 ft at 4:30PM Jan 13, 2019Observed: 16.61 ft at 4:45PM Jan 13, 2019Observed: 16.58 ft at 5:00PM Jan 13, 2019Observed: 16.6 ft at 5:15PM Jan 13, 2019Observed: 16.59 ft at 5:30PM Jan 13, 2019Observed: 16.56 ft at 5:45PM Jan 13, 2019Observed: 16.56 ft at 6:00PM Jan 13, 2019Observed: 16.58 ft at 6:15PM Jan 13, 2019Observed: 16.57 ft at 6:30PM Jan 13, 2019Observed: 16.56 ft at 6:45PM Jan 13, 2019Observed: 16.56 ft at 7:00PM Jan 13, 2019Observed: 16.55 ft at 7:15PM Jan 13, 2019Observed: 16.56 ft at 7:30PM Jan 13, 2019Observed: 16.54 ft at 7:45PM Jan 13, 2019Observed: 16.54 ft at 8:00PM Jan 13, 2019Observed: 16.54 ft at 8:15PM Jan 13, 2019Observed: 16.53 ft at 8:30PM Jan 13, 2019Observed: 16.52 ft at 8:45PM Jan 13, 2019Observed: 16.53 ft at 9:00PM Jan 13, 2019Observed: 16.5 ft at 9:15PM Jan 13, 2019Observed: 16.52 ft at 9:30PM Jan 13, 2019Observed: 16.5 ft at 9:45PM Jan 13, 2019Observed: 16.5 ft at 10:00PM Jan 13, 2019Observed: 16.51 ft at 10:15PM Jan 13, 2019Observed: 16.49 ft at 10:30PM Jan 13, 2019Observed: 16.49 ft at 10:45PM Jan 13, 2019Observed: 16.48 ft at 11:00PM Jan 13, 2019Observed: 16.49 ft at 11:15PM Jan 13, 2019Observed: 16.49 ft at 11:16PM Jan 13, 2019Observed: 16.48 ft at 11:30PM Jan 13, 2019Observed: 16.48 ft at 11:31PM Jan 13, 2019Observed: 16.49 ft at 11:45PM Jan 13, 2019Observed: 16.49 ft at 11:46PM Jan 13, 2019Observed: 16.49 ft at 12:00AM Jan 14, 2019Observed: 16.48 ft at 12:15AM Jan 14, 2019Observed: 16.47 ft at 12:30AM Jan 14, 2019Observed: 16.47 ft at 12:45AM Jan 14, 2019Observed: 16.47 ft at 1:00AM Jan 14, 2019Observed: 16.46 ft at 1:15AM Jan 14, 2019Observed: 16.48 ft at 1:30AM Jan 14, 2019Observed: 16.46 ft at 1:45AM Jan 14, 2019Observed: 16.48 ft at 2:00AM Jan 14, 2019Observed: 16.47 ft at 2:15AM Jan 14, 2019Observed: 16.47 ft at 2:30AM Jan 14, 2019Observed: 16.46 ft at 2:45AM Jan 14, 2019Observed: 16.44 ft at 3:00AM Jan 14, 2019Observed: 16.46 ft at 3:15AM Jan 14, 2019Observed: 16.44 ft at 3:30AM Jan 14, 2019Observed: 16.45 ft at 3:45AM Jan 14, 2019Observed: 16.44 ft at 4:00AM Jan 14, 2019Observed: 16.46 ft at 4:15AM Jan 14, 2019Observed: 16.44 ft at 4:30AM Jan 14, 2019Observed: 16.43 ft at 4:45AM Jan 14, 2019Observed: 16.42 ft at 5:00AM Jan 14, 2019Observed: 16.44 ft at 5:15AM Jan 14, 2019Observed: 16.44 ft at 5:30AM Jan 14, 2019Observed: 16.44 ft at 5:45AM Jan 14, 2019Observed: 16.44 ft at 6:00AM Jan 14, 2019Observed: 16.43 ft at 6:15AM Jan 14, 2019Observed: 16.43 ft at 6:30AM Jan 14, 2019Observed: 16.43 ft at 6:45AM Jan 14, 2019Observed: 16.43 ft at 7:00AM Jan 14, 2019Observed: 16.43 ft at 7:15AM Jan 14, 2019Observed: 16.43 ft at 7:16AM Jan 14, 2019Observed: 16.44 ft at 7:30AM Jan 14, 2019Observed: 16.44 ft at 7:31AM Jan 14, 2019Observed: 16.43 ft at 7:45AM Jan 14, 2019Observed: 16.43 ft at 7:46AM Jan 14, 2019Observed: 16.43 ft at 8:00AM Jan 14, 2019Observed: 16.42 ft at 8:15AM Jan 14, 2019Observed: 16.43 ft at 8:30AM Jan 14, 2019Observed: 16.44 ft at 8:45AM Jan 14, 2019Observed: 16.43 ft at 9:00AM Jan 14, 2019Observed: 16.41 ft at 9:15AM Jan 14, 2019Observed: 16.42 ft at 9:30AM Jan 14, 2019Observed: 16.42 ft at 9:45AM Jan 14, 2019Observed: 16.42 ft at 10:00AM Jan 14, 2019Observed: 16.41 ft at 10:15AM Jan 14, 2019Observed: 16.4 ft at 10:30AM Jan 14, 2019Observed: 16.4 ft at 10:45AM Jan 14, 2019Observed: 16.38 ft at 11:00AM Jan 14, 2019Observed: 16.38 ft at 11:15AM Jan 14, 2019Observed: 16.38 ft at 11:30AM Jan 14, 2019Observed: 16.4 ft at 11:45AM Jan 14, 2019Observed: 16.4 ft at 12:00PM Jan 14, 2019Observed: 16.37 ft at 12:15PM Jan 14, 2019Observed: 16.39 ft at 12:30PM Jan 14, 2019Observed: 16.38 ft at 12:45PM Jan 14, 2019Observed: 16.38 ft at 1:00PM Jan 14, 2019Observed: 16.37 ft at 1:15PM Jan 14, 2019Observed: 16.36 ft at 1:30PM Jan 14, 2019Observed: 16.37 ft at 1:45PM Jan 14, 2019Observed: 16.36 ft at 2:00PM Jan 14, 2019Observed: 16.34 ft at 2:15PM Jan 14, 2019Observed: 16.35 ft at 2:30PM Jan 14, 2019Observed: 16.34 ft at 2:45PM Jan 14, 2019Observed: 16.35 ft at 3:00PM Jan 14, 2019Observed: 16.35 ft at 3:15PM Jan 14, 2019Observed: 16.35 ft at 3:16PM Jan 14, 2019Observed: 16.35 ft at 3:30PM Jan 14, 2019Observed: 16.35 ft at 3:31PM Jan 14, 2019Observed: 16.34 ft at 3:45PM Jan 14, 2019Observed: 16.34 ft at 3:46PM Jan 14, 2019Observed: 16.34 ft at 4:00PM Jan 14, 2019Observed: 16.32 ft at 4:15PM Jan 14, 2019Observed: 16.32 ft at 4:30PM Jan 14, 2019Observed: 16.32 ft at 4:45PM Jan 14, 2019Observed: 16.31 ft at 5:00PM Jan 14, 2019Observed: 16.31 ft at 5:15PM Jan 14, 2019Observed: 16.29 ft at 5:30PM Jan 14, 2019Observed: 16.3 ft at 5:45PM Jan 14, 2019Observed: 16.28 ft at 6:00PM Jan 14, 2019Observed: 16.29 ft at 6:15PM Jan 14, 2019Observed: 16.27 ft at 6:30PM Jan 14, 2019Observed: 16.28 ft at 6:45PM Jan 14, 2019Observed: 16.26 ft at 7:00PM Jan 14, 2019Observed: 16.26 ft at 7:15PM Jan 14, 2019Observed: 16.25 ft at 7:30PM Jan 14, 2019Observed: 16.24 ft at 7:45PM Jan 14, 2019Observed: 16.25 ft at 8:00PM Jan 14, 2019Observed: 16.24 ft at 8:15PM Jan 14, 2019Observed: 16.24 ft at 8:30PM Jan 14, 2019Observed: 16.24 ft at 8:45PM Jan 14, 2019Observed: 16.23 ft at 9:00PM Jan 14, 2019Observed: 16.24 ft at 9:15PM Jan 14, 2019Observed: 16.24 ft at 9:30PM Jan 14, 2019Observed: 16.22 ft at 9:45PM Jan 14, 2019Observed: 16.23 ft at 10:00PM Jan 14, 2019Observed: 16.23 ft at 10:15PM Jan 14, 2019Observed: 16.23 ft at 10:30PM Jan 14, 2019Observed: 16.23 ft at 10:45PM Jan 14, 2019Observed: 16.23 ft at 11:00PM Jan 14, 2019Observed: 16.22 ft at 11:15PM Jan 14, 2019Observed: 16.22 ft at 11:17PM Jan 14, 2019Observed: 16.23 ft at 11:30PM Jan 14, 2019Observed: 16.23 ft at 11:32PM Jan 14, 2019Observed: 16.21 ft at 11:45PM Jan 14, 2019Observed: 16.21 ft at 11:47PM Jan 14, 2019Observed: 16.21 ft at 12:00AM Jan 15, 2019Observed: 16.21 ft at 12:15AM Jan 15, 2019Observed: 16.2 ft at 12:30AM Jan 15, 2019Observed: 16.21 ft at 12:45AM Jan 15, 2019Observed: 16.2 ft at 1:00AM Jan 15, 2019Observed: 16.19 ft at 1:15AM Jan 15, 2019Observed: 16.19 ft at 1:30AM Jan 15, 2019Observed: 16.19 ft at 1:45AM Jan 15, 2019Observed: 16.19 ft at 2:00AM Jan 15, 2019Observed: 16.19 ft at 2:15AM Jan 15, 2019Observed: 16.19 ft at 2:30AM Jan 15, 2019Observed: 16.19 ft at 2:45AM Jan 15, 2019Observed: 16.18 ft at 3:00AM Jan 15, 2019Observed: 16.16 ft at 3:15AM Jan 15, 2019Observed: 16.15 ft at 3:30AM Jan 15, 2019Observed: 16.16 ft at 3:45AM Jan 15, 2019Observed: 16.15 ft at 4:00AM Jan 15, 2019Observed: 16.15 ft at 4:15AM Jan 15, 2019Observed: 16.15 ft at 4:30AM Jan 15, 2019Observed: 16.16 ft at 4:45AM Jan 15, 2019Observed: 16.16 ft at 5:00AM Jan 15, 2019Observed: 16.16 ft at 5:15AM Jan 15, 2019Observed: 16.16 ft at 5:30AM Jan 15, 2019Observed: 16.17 ft at 5:45AM Jan 15, 2019Observed: 16.16 ft at 6:00AM Jan 15, 2019Observed: 16.16 ft at 6:15AM Jan 15, 2019Observed: 16.17 ft at 6:30AM Jan 15, 2019Observed: 16.18 ft at 6:45AM Jan 15, 2019Observed: 16.17 ft at 7:00AM Jan 15, 2019Observed: 16.15 ft at 7:15AM Jan 15, 2019Observed: 16.15 ft at 7:30AM Jan 15, 2019Observed: 16.15 ft at 7:32AM Jan 15, 2019Observed: 16.16 ft at 7:45AM Jan 15, 2019Observed: 16.16 ft at 7:47AM Jan 15, 2019Observed: 16.13 ft at 8:00AM Jan 15, 2019Observed: 16.13 ft at 8:02AM Jan 15, 2019Observed: 16.15 ft at 8:15AM Jan 15, 2019Observed: 16.15 ft at 8:30AM Jan 15, 2019Observed: 16.15 ft at 8:45AM Jan 15, 2019Observed: 16.14 ft at 9:00AM Jan 15, 2019Observed: 16.13 ft at 9:15AM Jan 15, 2019Observed: 16.14 ft at 9:30AM Jan 15, 2019Observed: 16.16 ft at 9:45AM Jan 15, 2019Observed: 16.17 ft at 10:00AM Jan 15, 2019Observed: 16.15 ft at 10:15AM Jan 15, 2019Observed: 16.13 ft at 10:30AM Jan 15, 2019Observed: 16.15 ft at 10:45AM Jan 15, 2019Observed: 16.15 ft at 11:00AM Jan 15, 2019Observed: 16.12 ft at 11:15AM Jan 15, 2019Observed: 16.12 ft at 11:30AM Jan 15, 2019Observed: 16.12 ft at 11:45AM Jan 15, 2019Observed: 16.14 ft at 12:00PM Jan 15, 2019Observed: 16.12 ft at 12:15PM Jan 15, 2019Observed: 16.11 ft at 12:30PM Jan 15, 2019Observed: 16.12 ft at 12:45PM Jan 15, 2019Observed: 16.13 ft at 1:00PM Jan 15, 2019Observed: 16.14 ft at 1:15PM Jan 15, 2019Observed: 16.13 ft at 1:30PM Jan 15, 2019Observed: 16.14 ft at 1:45PM Jan 15, 2019Observed: 16.12 ft at 2:00PM Jan 15, 2019Observed: 16.15 ft at 2:15PM Jan 15, 2019Observed: 16.14 ft at 2:30PM Jan 15, 2019Observed: 16.14 ft at 2:45PM Jan 15, 2019Observed: 16.13 ft at 3:00PM Jan 15, 2019Observed: 16.13 ft at 3:15PM Jan 15, 2019Observed: 16.12 ft at 3:30PM Jan 15, 2019Observed: 16.12 ft at 3:31PM Jan 15, 2019Observed: 16.12 ft at 3:45PM Jan 15, 2019Observed: 16.12 ft at 3:46PM Jan 15, 2019Observed: 16.13 ft at 4:00PM Jan 15, 2019Observed: 16.13 ft at 4:01PM Jan 15, 2019Observed: 16.14 ft at 4:15PM Jan 15, 2019Observed: 16.14 ft at 4:30PM Jan 15, 2019Observed: 16.14 ft at 4:45PM Jan 15, 2019Observed: 16.13 ft at 5:00PM Jan 15, 2019Observed: 16.11 ft at 5:15PM Jan 15, 2019Observed: 16.13 ft at 5:30PM Jan 15, 2019Observed: 16.11 ft at 5:45PM Jan 15, 2019Observed: 16.1 ft at 6:00PM Jan 15, 2019Observed: 16.11 ft at 6:15PM Jan 15, 2019Observed: 16.09 ft at 6:30PM Jan 15, 2019Observed: 16.1 ft at 6:45PM Jan 15, 2019Observed: 16.09 ft at 7:00PM Jan 15, 2019Observed: 16.11 ft at 7:15PM Jan 15, 2019Observed: 16.09 ft at 7:30PM Jan 15, 2019Observed: 16.07 ft at 7:45PM Jan 15, 2019Observed: 16.07 ft at 8:00PM Jan 15, 2019Observed: 16.06 ft at 8:15PM Jan 15, 2019Observed: 16.05 ft at 8:30PM Jan 15, 2019Observed: 16.04 ft at 8:45PM Jan 15, 2019Observed: 16.05 ft at 9:00PM Jan 15, 2019Observed: 16.04 ft at 9:15PM Jan 15, 2019Observed: 16.04 ft at 9:30PM Jan 15, 2019Observed: 16.01 ft at 9:45PM Jan 15, 2019Observed: 16.01 ft at 10:00PM Jan 15, 2019Observed: 16.01 ft at 10:15PM Jan 15, 2019Observed: 16.01 ft at 10:30PM Jan 15, 2019Observed: 16 ft at 10:45PM Jan 15, 2019Observed: 16.01 ft at 11:00PM Jan 15, 2019Observed: 16.02 ft at 11:15PM Jan 15, 2019Observed: 16.01 ft at 11:30PM Jan 15, 2019Observed: 16.01 ft at 11:45PM Jan 15, 2019Observed: 15.99 ft at 12:00AM Jan 16, 2019Observed: 16.01 ft at 12:15AM Jan 16, 2019Observed: 16 ft at 12:30AM Jan 16, 2019Observed: 16 ft at 12:45AM Jan 16, 2019Observed: 15.99 ft at 1:00AM Jan 16, 2019Observed: 15.99 ft at 1:15AM Jan 16, 2019Observed: 15.95 ft at 1:30AM Jan 16, 2019Observed: 15.97 ft at 1:45AM Jan 16, 2019Observed: 15.97 ft at 2:00AM Jan 16, 2019Observed: 15.95 ft at 2:15AM Jan 16, 2019Observed: 15.95 ft at 2:30AM Jan 16, 2019Observed: 15.96 ft at 2:45AM Jan 16, 2019Observed: 15.96 ft at 3:00AM Jan 16, 2019Observed: 15.98 ft at 3:15AM Jan 16, 2019Observed: 15.99 ft at 3:30AM Jan 16, 2019Observed: 15.99 ft at 3:45AM Jan 16, 2019Observed: 15.97 ft at 4:00AM Jan 16, 2019Observed: 15.96 ft at 4:15AM Jan 16, 2019Observed: 15.94 ft at 4:30AM Jan 16, 2019Observed: 15.93 ft at 4:45AM Jan 16, 2019Observed: 15.92 ft at 5:00AM Jan 16, 2019Observed: 15.91 ft at 5:15AM Jan 16, 2019Observed: 15.92 ft at 5:30AM Jan 16, 2019Observed: 15.89 ft at 5:45AM Jan 16, 2019Observed: 15.88 ft at 6:00AM Jan 16, 2019Observed: 15.89 ft at 6:15AM Jan 16, 2019Observed: 15.87 ft at 6:30AM Jan 16, 2019Observed: 15.84 ft at 6:45AM Jan 16, 2019Observed: 15.84 ft at 7:00AM Jan 16, 2019Observed: 15.81 ft at 7:15AM Jan 16, 2019Observed: 15.83 ft at 7:30AM Jan 16, 2019Observed: 15.83 ft at 7:32AM Jan 16, 2019Observed: 15.82 ft at 7:45AM Jan 16, 2019Observed: 15.82 ft at 7:47AM Jan 16, 2019Observed: 15.81 ft at 8:00AM Jan 16, 2019Observed: 15.81 ft at 8:02AM Jan 16, 2019Observed: 15.79 ft at 8:15AM Jan 16, 2019Observed: 15.77 ft at 8:30AM Jan 16, 2019Observed: 15.76 ft at 8:45AM Jan 16, 2019Observed: 15.72 ft at 9:00AM Jan 16, 2019Observed: 15.72 ft at 9:15AM Jan 16, 2019Observed: 15.72 ft at 9:30AM Jan 16, 2019Observed: 15.7 ft at 9:45AM Jan 16, 2019Observed: 15.7 ft at 10:00AM Jan 16, 2019Observed: 15.69 ft at 10:15AM Jan 16, 2019Observed: 15.68 ft at 10:30AM Jan 16, 2019Observed: 15.69 ft at 10:45AM Jan 16, 2019Observed: 15.7 ft at 11:00AM Jan 16, 2019Observed: 15.7 ft at 11:15AM Jan 16, 2019Observed: 15.71 ft at 11:30AM Jan 16, 2019Observed: 15.71 ft at 11:45AM Jan 16, 2019Observed: 15.72 ft at 12:00PM Jan 16, 2019Observed: 15.73 ft at 12:15PM Jan 16, 2019Observed: 15.71 ft at 12:30PM Jan 16, 2019Observed: 15.73 ft at 12:45PM Jan 16, 2019Observed: 15.71 ft at 1:00PM Jan 16, 2019Observed: 15.7 ft at 1:15PM Jan 16, 2019Observed: 15.72 ft at 1:30PM Jan 16, 2019Observed: 15.7 ft at 1:45PM Jan 16, 2019Observed: 15.69 ft at 2:00PM Jan 16, 2019Observed: 15.71 ft at 2:15PM Jan 16, 2019Observed: 15.71 ft at 2:30PM Jan 16, 2019Observed: 15.7 ft at 2:45PM Jan 16, 2019Observed: 15.7 ft at 3:00PM Jan 16, 2019Observed: 15.7 ft at 3:15PM Jan 16, 2019Observed: 15.7 ft at 3:30PM Jan 16, 2019Observed: 15.7 ft at 3:32PM Jan 16, 2019Observed: 15.69 ft at 3:45PM Jan 16, 2019Observed: 15.69 ft at 3:47PM Jan 16, 2019Observed: 15.7 ft at 4:00PM Jan 16, 2019Observed: 15.7 ft at 4:02PM Jan 16, 2019Observed: 15.66 ft at 4:15PM Jan 16, 2019Observed: 15.68 ft at 4:30PM Jan 16, 2019Observed: 15.66 ft at 4:45PM Jan 16, 2019Observed: 15.63 ft at 5:00PM Jan 16, 2019Observed: 15.65 ft at 5:15PM Jan 16, 2019Observed: 15.64 ft at 5:30PM Jan 16, 2019Observed: 15.65 ft at 5:45PM Jan 16, 2019Observed: 15.65 ft at 6:00PM Jan 16, 2019Observed: 15.65 ft at 6:15PM Jan 16, 2019Observed: 15.64 ft at 6:30PM Jan 16, 2019Observed: 15.63 ft at 6:45PM Jan 16, 2019Observed: 15.61 ft at 7:00PM Jan 16, 2019Observed: 15.62 ft at 7:15PM Jan 16, 2019Observed: 15.61 ft at 7:30PM Jan 16, 2019Observed: 15.6 ft at 7:45PM Jan 16, 2019Observed: 15.58 ft at 8:00PM Jan 16, 2019Observed: 15.59 ft at 8:15PM Jan 16, 2019Observed: 15.57 ft at 8:30PM Jan 16, 2019Observed: 15.56 ft at 8:45PM Jan 16, 2019Observed: 15.54 ft at 9:00PM Jan 16, 2019Observed: 15.53 ft at 9:15PM Jan 16, 2019Observed: 15.53 ft at 9:30PM Jan 16, 2019Observed: 15.52 ft at 9:45PM Jan 16, 2019Observed: 15.5 ft at 10:00PM Jan 16, 2019Observed: 15.49 ft at 10:15PM Jan 16, 2019Observed: 15.5 ft at 10:30PM Jan 16, 2019Observed: 15.49 ft at 10:45PM Jan 16, 2019Observed: 15.49 ft at 11:00PM Jan 16, 2019Observed: 15.49 ft at 11:15PM Jan 16, 2019Observed: 15.47 ft at 11:30PM Jan 16, 2019Observed: 15.47 ft at 11:31PM Jan 16, 2019Observed: 15.48 ft at 11:45PM Jan 16, 2019Observed: 15.48 ft at 11:46PM Jan 16, 2019Observed: 15.49 ft at 12:00AM Jan 17, 2019Observed: 15.49 ft at 12:01AM Jan 17, 2019Observed: 15.5 ft at 12:15AM Jan 17, 2019Observed: 15.49 ft at 12:30AM Jan 17, 2019Observed: 15.49 ft at 12:45AM Jan 17, 2019Observed: 15.5 ft at 1:00AM Jan 17, 2019Observed: 15.48 ft at 1:15AM Jan 17, 2019Observed: 15.49 ft at 1:30AM Jan 17, 2019Observed: 15.51 ft at 1:45AM Jan 17, 2019Observed: 15.52 ft at 2:00AM Jan 17, 2019Observed: 15.53 ft at 2:15AM Jan 17, 2019Observed: 15.55 ft at 2:30AM Jan 17, 2019Observed: 15.56 ft at 2:45AM Jan 17, 2019Observed: 15.56 ft at 3:00AM Jan 17, 2019Observed: 15.57 ft at 3:15AM Jan 17, 2019Observed: 15.58 ft at 3:30AM Jan 17, 2019Observed: 15.59 ft at 3:45AM Jan 17, 2019Observed: 15.6 ft at 4:00AM Jan 17, 2019Observed: 15.61 ft at 4:15AM Jan 17, 2019Observed: 15.62 ft at 4:30AM Jan 17, 2019Observed: 15.63 ft at 4:45AM Jan 17, 2019Observed: 15.64 ft at 5:00AM Jan 17, 2019Observed: 15.66 ft at 5:15AM Jan 17, 2019Observed: 15.67 ft at 5:30AM Jan 17, 2019Observed: 15.67 ft at 5:45AM Jan 17, 2019Observed: 15.68 ft at 6:00AM Jan 17, 2019Observed: 15.68 ft at 6:15AM Jan 17, 2019Observed: 15.69 ft at 6:30AM Jan 17, 2019Observed: 15.7 ft at 6:45AM Jan 17, 2019Observed: 15.71 ft at 7:00AM Jan 17, 2019Observed: 15.72 ft at 7:15AM Jan 17, 2019Observed: 15.72 ft at 7:30AM Jan 17, 2019Observed: 15.72 ft at 7:32AM Jan 17, 2019Observed: 15.72 ft at 7:45AM Jan 17, 2019Observed: 15.72 ft at 7:47AM Jan 17, 2019Observed: 15.73 ft at 8:00AM Jan 17, 2019Observed: 15.73 ft at 8:02AM Jan 17, 2019Observed: 15.74 ft at 8:15AM Jan 17, 2019Observed: 15.74 ft at 8:30AM Jan 17, 2019Observed: 15.74 ft at 8:45AM Jan 17, 2019Observed: 15.74 ft at 9:00AM Jan 17, 2019Observed: 15.74 ft at 9:15AM Jan 17, 2019Observed: 15.74 ft at 9:30AM Jan 17, 2019Observed: 15.76 ft at 9:45AM Jan 17, 2019Observed: 15.74 ft at 10:00AM Jan 17, 2019Observed: 15.74 ft at 10:15AM Jan 17, 2019Observed: 15.74 ft at 10:30AM Jan 17, 2019Observed: 15.75 ft at 10:45AM Jan 17, 2019Observed: 15.75 ft at 11:00AM Jan 17, 2019Observed: 15.74 ft at 11:15AM Jan 17, 2019Observed: 15.74 ft at 11:30AM Jan 17, 2019Observed: 15.73 ft at 11:45AM Jan 17, 2019Observed: 15.7 ft at 12:00PM Jan 17, 2019Observed: 15.72 ft at 12:15PM Jan 17, 2019Observed: 15.71 ft at 12:30PM Jan 17, 2019Observed: 15.71 ft at 12:45PM Jan 17, 2019Observed: 15.7 ft at 1:00PM Jan 17, 2019Observed: 15.68 ft at 1:15PM Jan 17, 2019Observed: 15.68 ft at 1:30PM Jan 17, 2019Observed: 15.67 ft at 1:45PM Jan 17, 2019Observed: 15.67 ft at 2:00PM Jan 17, 2019Observed: 15.66 ft at 2:15PM Jan 17, 2019Observed: 15.65 ft at 2:30PM Jan 17, 2019Observed: 15.64 ft at 2:45PM Jan 17, 2019Observed: 15.64 ft at 3:00PM Jan 17, 2019Observed: 15.62 ft at 3:15PM Jan 17, 2019Observed: 15.62 ft at 3:30PM Jan 17, 2019Observed: 15.62 ft at 3:31PM Jan 17, 2019Observed: 15.61 ft at 3:45PM Jan 17, 2019Observed: 15.61 ft at 3:46PM Jan 17, 2019Observed: 15.62 ft at 4:00PM Jan 17, 2019Observed: 15.62 ft at 4:01PM Jan 17, 2019Observed: 15.59 ft at 4:15PM Jan 17, 2019Observed: 15.6 ft at 4:30PM Jan 17, 2019Observed: 15.6 ft at 4:45PM Jan 17, 2019Observed: 15.59 ft at 5:00PM Jan 17, 2019Observed: 15.59 ft at 5:15PM Jan 17, 2019Observed: 15.59 ft at 5:30PM Jan 17, 2019Observed: 15.58 ft at 5:45PM Jan 17, 2019Observed: 15.58 ft at 6:00PM Jan 17, 2019Observed: 15.57 ft at 6:15PM Jan 17, 2019Observed: 15.57 ft at 6:30PM Jan 17, 2019Observed: 15.56 ft at 6:45PM Jan 17, 2019Observed: 15.56 ft at 7:00PM Jan 17, 2019Observed: 15.55 ft at 7:15PM Jan 17, 2019Observed: 15.55 ft at 7:30PM Jan 17, 2019Observed: 15.54 ft at 7:45PM Jan 17, 2019Observed: 15.55 ft at 8:00PM Jan 17, 2019Observed: 15.54 ft at 8:15PM Jan 17, 2019Observed: 15.53 ft at 8:30PM Jan 17, 2019Observed: 15.53 ft at 8:45PM Jan 17, 2019Observed: 15.51 ft at 9:00PM Jan 17, 2019Observed: 15.51 ft at 9:15PM Jan 17, 2019Observed: 15.49 ft at 9:30PM Jan 17, 2019USGS--Water Resources of the United StatesHWDI4(plotting HGIRG) Graph Created (10:05PM Jan 17, 2019)ObservedLatest observed value: 15.49 ft at 9:30 PM CST 17-Jan-2019. Flood Stage is 20.5 ft
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Tabular Data (UTC)
Tabular Data (CST)
XML Data
RSS Files
Datum: NAVD88
Metadata
NOTE: Gauge reading may be affected by ice.

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: Forecasts for the Big Sioux River above Hawarden are issued as needed during times of high water, but are not routinely available.

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Upstream Gauge - at Fairview Upstream Gauge Downstream Gauge Downstream Locations
Flood Categories (in feet)
Major Flood Stage: 27
Moderate Flood Stage: 24
Flood Stage: 20.5
Action Stage: 18.5
Low Stage (in feet): -9999

Historic Crests
(1) 34.00 ft on 06/22/2018
(2) 22.38 ft on 05/02/2016
(3) 20.35 ft on 05/23/2017
(4) 18.30 ft on 07/09/2015

(P): Preliminary values subject to further review.

Recent Crests
(1) 34.00 ft on 06/22/2018
(2) 20.35 ft on 05/23/2017
(3) 22.38 ft on 05/02/2016
(4) 18.30 ft on 07/09/2015

(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:16
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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
32 Water backs up into the park in Hawarden, and some basements and sewers could begin to have problems.
30.5 Iowa Highway 10 begins to flood.
24 Some farm houses on the South Dakota side of the river are isolated by high water.
23 South Dakota Highway 46 begins to flood.
20.5 Agricultural flooding begins on the South Dakota side of the river.
About This Location Collapse

Latitude: 43.051389° N, Longitude: 96.489444° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 20.5 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 1150 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  

Current/Historical Observations:

Additional Information Collapse
This location became the official NWS river forecast point for the Big Sioux River near Hawarden on January 1, 2017. On Wednesday, April 11, 2018, the elevation defining Flood Stage for HWDI4 will be changed from 19.0 feet to 20.5 feet. How low could the river get?
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Hydrologic Resources Additional Resources
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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: 21-Dec-2016 5:20 PM
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