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Hydrograph River at a Glance Download
Big Sioux River above Hawarden Stage (ft)Flow (cfs)Observed: 14.66 ft at 7:00PM Mar 11, 2019Observed: 14.66 ft at 7:15PM Mar 11, 2019Observed: 14.66 ft at 7:30PM Mar 11, 2019Observed: 14.67 ft at 7:45PM Mar 11, 2019Observed: 14.67 ft at 8:00PM Mar 11, 2019Observed: 14.67 ft at 8:15PM Mar 11, 2019Observed: 14.67 ft at 8:30PM Mar 11, 2019Observed: 14.67 ft at 8:31PM Mar 11, 2019Observed: 14.67 ft at 8:45PM Mar 11, 2019Observed: 14.67 ft at 8:46PM Mar 11, 2019Observed: 14.66 ft at 9:00PM Mar 11, 2019Observed: 14.66 ft at 9:01PM Mar 11, 2019Observed: 14.66 ft at 9:15PM Mar 11, 2019Observed: 14.66 ft at 9:30PM Mar 11, 2019Observed: 14.69 ft at 9:45PM Mar 11, 2019Observed: 14.68 ft at 10:00PM Mar 11, 2019Observed: 14.69 ft at 10:15PM Mar 11, 2019Observed: 14.69 ft at 10:30PM Mar 11, 2019Observed: 14.69 ft at 10:45PM Mar 11, 2019Observed: 14.7 ft at 11:00PM Mar 11, 2019Observed: 14.7 ft at 11:15PM Mar 11, 2019Observed: 14.7 ft at 11:30PM Mar 11, 2019Observed: 14.7 ft at 11:45PM Mar 11, 2019Observed: 14.71 ft at 12:00AM Mar 12, 2019Observed: 14.71 ft at 12:15AM Mar 12, 2019Observed: 14.71 ft at 12:30AM Mar 12, 2019Observed: 14.72 ft at 12:45AM Mar 12, 2019Observed: 14.73 ft at 1:00AM Mar 12, 2019Observed: 14.73 ft at 1:15AM Mar 12, 2019Observed: 14.74 ft at 1:30AM Mar 12, 2019Observed: 14.75 ft at 1:45AM Mar 12, 2019Observed: 14.75 ft at 2:00AM Mar 12, 2019Observed: 14.75 ft at 2:15AM Mar 12, 2019Observed: 14.75 ft at 2:30AM Mar 12, 2019Observed: 14.76 ft at 2:45AM Mar 12, 2019Observed: 14.76 ft at 3:00AM Mar 12, 2019Observed: 14.77 ft at 3:15AM Mar 12, 2019Observed: 14.77 ft at 3:30AM Mar 12, 2019Observed: 14.78 ft at 3:45AM Mar 12, 2019Observed: 14.78 ft at 4:00AM Mar 12, 2019Observed: 14.79 ft at 4:15AM Mar 12, 2019Observed: 14.79 ft at 4:30AM Mar 12, 2019Observed: 14.79 ft at 4:32AM Mar 12, 2019Observed: 14.79 ft at 4:45AM Mar 12, 2019Observed: 14.79 ft at 4:47AM Mar 12, 2019Observed: 14.78 ft at 5:00AM Mar 12, 2019Observed: 14.78 ft at 5:02AM Mar 12, 2019Observed: 14.79 ft at 5:15AM Mar 12, 2019Observed: 14.78 ft at 5:30AM Mar 12, 2019Observed: 14.78 ft at 5:45AM Mar 12, 2019Observed: 14.78 ft at 6:00AM Mar 12, 2019Observed: 14.79 ft at 6:15AM Mar 12, 2019Observed: 14.79 ft at 6:30AM Mar 12, 2019Observed: 14.8 ft at 6:45AM Mar 12, 2019Observed: 14.8 ft at 7:00AM Mar 12, 2019Observed: 14.81 ft at 7:15AM Mar 12, 2019Observed: 14.81 ft at 7:30AM Mar 12, 2019Observed: 14.82 ft at 7:45AM Mar 12, 2019Observed: 14.82 ft at 8:00AM Mar 12, 2019Observed: 14.81 ft at 8:15AM Mar 12, 2019Observed: 14.81 ft at 8:30AM Mar 12, 2019Observed: 14.81 ft at 8:45AM Mar 12, 2019Observed: 14.81 ft at 9:00AM Mar 12, 2019Observed: 14.82 ft at 9:15AM Mar 12, 2019Observed: 14.81 ft at 9:30AM Mar 12, 2019Observed: 14.82 ft at 9:45AM Mar 12, 2019Observed: 14.82 ft at 10:00AM Mar 12, 2019Observed: 14.81 ft at 10:15AM Mar 12, 2019Observed: 14.82 ft at 10:30AM Mar 12, 2019Observed: 14.83 ft at 10:45AM Mar 12, 2019Observed: 14.83 ft at 11:00AM Mar 12, 2019Observed: 14.84 ft at 11:15AM Mar 12, 2019Observed: 14.83 ft at 11:30AM Mar 12, 2019Observed: 14.82 ft at 11:45AM Mar 12, 2019Observed: 14.83 ft at 12:00PM Mar 12, 2019Observed: 14.83 ft at 12:15PM Mar 12, 2019Observed: 14.82 ft at 12:30PM Mar 12, 2019Observed: 14.82 ft at 12:32PM Mar 12, 2019Observed: 14.81 ft at 12:45PM Mar 12, 2019Observed: 14.81 ft at 12:47PM Mar 12, 2019Observed: 14.8 ft at 1:00PM Mar 12, 2019Observed: 14.8 ft at 1:02PM Mar 12, 2019Observed: 14.8 ft at 1:15PM Mar 12, 2019Observed: 14.8 ft at 1:30PM Mar 12, 2019Observed: 14.81 ft at 1:45PM Mar 12, 2019Observed: 14.8 ft at 2:00PM Mar 12, 2019Observed: 14.78 ft at 2:15PM Mar 12, 2019Observed: 14.79 ft at 2:30PM Mar 12, 2019Observed: 14.79 ft at 2:45PM Mar 12, 2019Observed: 14.8 ft at 3:00PM Mar 12, 2019Observed: 14.81 ft at 3:15PM Mar 12, 2019Observed: 14.81 ft at 3:30PM Mar 12, 2019Observed: 14.8 ft at 3:45PM Mar 12, 2019Observed: 14.81 ft at 4:00PM Mar 12, 2019Observed: 14.83 ft at 4:15PM Mar 12, 2019Observed: 14.84 ft at 4:30PM Mar 12, 2019Observed: 14.84 ft at 4:45PM Mar 12, 2019Observed: 14.84 ft at 5:00PM Mar 12, 2019Observed: 14.85 ft at 5:15PM Mar 12, 2019Observed: 14.86 ft at 5:30PM Mar 12, 2019Observed: 14.87 ft at 5:45PM Mar 12, 2019Observed: 14.87 ft at 6:00PM Mar 12, 2019Observed: 14.88 ft at 6:15PM Mar 12, 2019Observed: 14.87 ft at 6:30PM Mar 12, 2019Observed: 14.87 ft at 6:45PM Mar 12, 2019Observed: 14.88 ft at 7:00PM Mar 12, 2019Observed: 14.88 ft at 7:15PM Mar 12, 2019Observed: 14.86 ft at 7:30PM Mar 12, 2019Observed: 14.86 ft at 7:45PM Mar 12, 2019Observed: 14.87 ft at 8:00PM Mar 12, 2019Observed: 14.87 ft at 8:15PM Mar 12, 2019Observed: 14.87 ft at 8:30PM Mar 12, 2019Observed: 14.87 ft at 8:45PM Mar 12, 2019Observed: 14.87 ft at 9:00PM Mar 12, 2019Observed: 14.87 ft at 9:15PM Mar 12, 2019Observed: 14.87 ft at 9:30PM Mar 12, 2019Observed: 14.86 ft at 9:45PM Mar 12, 2019Observed: 14.86 ft at 10:00PM Mar 12, 2019Observed: 14.86 ft at 10:15PM Mar 12, 2019Observed: 14.85 ft at 10:30PM Mar 12, 2019Observed: 14.85 ft at 10:45PM Mar 12, 2019Observed: 14.85 ft at 11:00PM Mar 12, 2019Observed: 14.86 ft at 11:15PM Mar 12, 2019Observed: 14.86 ft at 11:30PM Mar 12, 2019Observed: 14.87 ft at 11:45PM Mar 12, 2019Observed: 14.89 ft at 12:00AM Mar 13, 2019Observed: 14.9 ft at 12:15AM Mar 13, 2019Observed: 14.93 ft at 12:30AM Mar 13, 2019Observed: 14.94 ft at 12:45AM Mar 13, 2019Observed: 14.95 ft at 1:00AM Mar 13, 2019Observed: 14.96 ft at 1:15AM Mar 13, 2019Observed: 14.98 ft at 1:30AM Mar 13, 2019Observed: 14.99 ft at 1:45AM Mar 13, 2019Observed: 15 ft at 2:00AM Mar 13, 2019Observed: 15 ft at 2:15AM Mar 13, 2019Observed: 15.01 ft at 2:30AM Mar 13, 2019Observed: 15.01 ft at 2:45AM Mar 13, 2019Observed: 15.03 ft at 3:00AM Mar 13, 2019Observed: 15.03 ft at 3:15AM Mar 13, 2019Observed: 15.04 ft at 3:30AM Mar 13, 2019Observed: 15.05 ft at 3:45AM Mar 13, 2019Observed: 15.06 ft at 4:00AM Mar 13, 2019Observed: 15.08 ft at 4:15AM Mar 13, 2019Observed: 15.1 ft at 4:30AM Mar 13, 2019Observed: 15.12 ft at 4:45AM Mar 13, 2019Observed: 15.12 ft at 4:46AM Mar 13, 2019Observed: 15.13 ft at 5:00AM Mar 13, 2019Observed: 15.13 ft at 5:01AM Mar 13, 2019Observed: 15.16 ft at 5:15AM Mar 13, 2019Observed: 15.16 ft at 5:16AM Mar 13, 2019Observed: 15.17 ft at 5:30AM Mar 13, 2019Observed: 15.17 ft at 5:45AM Mar 13, 2019Observed: 15.2 ft at 6:00AM Mar 13, 2019Observed: 15.28 ft at 6:15AM Mar 13, 2019Observed: 15.25 ft at 6:30AM Mar 13, 2019Observed: 15.24 ft at 6:45AM Mar 13, 2019Observed: 15.24 ft at 7:00AM Mar 13, 2019Observed: 15.24 ft at 7:15AM Mar 13, 2019Observed: 15.2 ft at 7:30AM Mar 13, 2019Observed: 15.29 ft at 7:45AM Mar 13, 2019Observed: 15.31 ft at 8:00AM Mar 13, 2019Observed: 15.3 ft at 8:15AM Mar 13, 2019Observed: 15.36 ft at 8:30AM Mar 13, 2019Observed: 15.38 ft at 8:45AM Mar 13, 2019Observed: 15.39 ft at 9:00AM Mar 13, 2019Observed: 15.41 ft at 9:15AM Mar 13, 2019Observed: 15.44 ft at 9:30AM Mar 13, 2019Observed: 15.49 ft at 9:45AM Mar 13, 2019Observed: 15.5 ft at 10:00AM Mar 13, 2019Observed: 15.54 ft at 10:15AM Mar 13, 2019Observed: 15.57 ft at 10:30AM Mar 13, 2019Observed: 15.64 ft at 10:45AM Mar 13, 2019Observed: 15.69 ft at 11:00AM Mar 13, 2019Observed: 15.76 ft at 11:15AM Mar 13, 2019Observed: 15.79 ft at 11:30AM Mar 13, 2019Observed: 15.84 ft at 11:45AM Mar 13, 2019Observed: 15.9 ft at 12:00PM Mar 13, 2019Observed: 15.98 ft at 12:15PM Mar 13, 2019Observed: 16.06 ft at 12:30PM Mar 13, 2019Observed: 16.15 ft at 12:45PM Mar 13, 2019Observed: 16.15 ft at 12:46PM Mar 13, 2019Observed: 16.25 ft at 1:00PM Mar 13, 2019Observed: 16.25 ft at 1:01PM Mar 13, 2019Observed: 16.35 ft at 1:15PM Mar 13, 2019Observed: 16.35 ft at 1:16PM Mar 13, 2019Observed: 16.46 ft at 1:30PM Mar 13, 2019Observed: 16.58 ft at 1:45PM Mar 13, 2019Observed: 16.72 ft at 2:00PM Mar 13, 2019Observed: 16.85 ft at 2:15PM Mar 13, 2019Observed: 17 ft at 2:30PM Mar 13, 2019Observed: 17.17 ft at 2:45PM Mar 13, 2019Observed: 17.35 ft at 3:00PM Mar 13, 2019Observed: 17.53 ft at 3:15PM Mar 13, 2019Observed: 17.7 ft at 3:30PM Mar 13, 2019Observed: 17.89 ft at 3:45PM Mar 13, 2019Observed: 18.13 ft at 4:00PM Mar 13, 2019Observed: 18.38 ft at 4:15PM Mar 13, 2019Observed: 18.64 ft at 4:30PM Mar 13, 2019Observed: 18.89 ft at 4:45PM Mar 13, 2019Observed: 19.17 ft at 5:00PM Mar 13, 2019Observed: 19.45 ft at 5:15PM Mar 13, 2019Observed: 19.71 ft at 5:30PM Mar 13, 2019Observed: 19.95 ft at 5:45PM Mar 13, 2019Observed: 20.12 ft at 6:00PM Mar 13, 2019Observed: 20.26 ft at 6:15PM Mar 13, 2019Observed: 20.49 ft at 6:30PM Mar 13, 2019Observed: 20.74 ft at 6:45PM Mar 13, 2019Observed: 21.01 ft at 7:00PM Mar 13, 2019Observed: 21.28 ft at 7:15PM Mar 13, 2019Observed: 21.57 ft at 7:30PM Mar 13, 2019Observed: 21.76 ft at 7:45PM Mar 13, 2019Observed: 21.94 ft at 8:00PM Mar 13, 2019Observed: 22.14 ft at 8:15PM Mar 13, 2019Observed: 22.3 ft at 8:30PM Mar 13, 2019Observed: 22.46 ft at 8:45PM Mar 13, 2019Observed: 22.46 ft at 8:46PM Mar 13, 2019Observed: 22.63 ft at 9:00PM Mar 13, 2019Observed: 22.63 ft at 9:01PM Mar 13, 2019Observed: 22.74 ft at 9:15PM Mar 13, 2019Observed: 22.74 ft at 9:16PM Mar 13, 2019Observed: 22.73 ft at 9:30PM Mar 13, 2019Observed: 22.64 ft at 9:45PM Mar 13, 2019Observed: 22.54 ft at 10:00PM Mar 13, 2019Observed: 22.66 ft at 10:15PM Mar 13, 2019Observed: 22.9 ft at 10:30PM Mar 13, 2019Observed: 22.95 ft at 10:45PM Mar 13, 2019Observed: 23.01 ft at 11:00PM Mar 13, 2019Observed: 23.13 ft at 11:15PM Mar 13, 2019Observed: 23.25 ft at 11:30PM Mar 13, 2019Observed: 23.38 ft at 11:45PM Mar 13, 2019Observed: 23.49 ft at 12:00AM Mar 14, 2019Observed: 23.6 ft at 12:15AM Mar 14, 2019Observed: 23.68 ft at 12:30AM Mar 14, 2019Observed: 23.77 ft at 12:45AM Mar 14, 2019Observed: 23.89 ft at 1:00AM Mar 14, 2019Observed: 24.04 ft at 1:15AM Mar 14, 2019Observed: 24.06 ft at 1:30AM Mar 14, 2019Observed: 24.15 ft at 1:45AM Mar 14, 2019Observed: 24.29 ft at 2:00AM Mar 14, 2019Observed: 24.5 ft at 2:15AM Mar 14, 2019Observed: 24.54 ft at 2:30AM Mar 14, 2019Observed: 24.67 ft at 2:45AM Mar 14, 2019Observed: 24.82 ft at 3:00AM Mar 14, 2019Observed: 24.91 ft at 3:15AM Mar 14, 2019Observed: 25.03 ft at 3:30AM Mar 14, 2019Observed: 25.19 ft at 3:45AM Mar 14, 2019Observed: 25.4 ft at 4:00AM Mar 14, 2019Observed: 25.29 ft at 4:15AM Mar 14, 2019Observed: 25.31 ft at 4:30AM Mar 14, 2019Observed: 25.63 ft at 4:45AM Mar 14, 2019Observed: 25.63 ft at 4:47AM Mar 14, 2019Observed: 25.84 ft at 5:00AM Mar 14, 2019Observed: 25.84 ft at 5:02AM Mar 14, 2019Observed: 26.06 ft at 5:15AM Mar 14, 2019Observed: 26.06 ft at 5:17AM Mar 14, 2019Observed: 26.26 ft at 5:30AM Mar 14, 2019Observed: 26.4 ft at 5:45AM Mar 14, 2019Observed: 26.56 ft at 6:00AM Mar 14, 2019Observed: 26.77 ft at 6:15AM Mar 14, 2019Observed: 26.89 ft at 6:30AM Mar 14, 2019Observed: 26.67 ft at 6:45AM Mar 14, 2019Observed: 26.73 ft at 7:00AM Mar 14, 2019Observed: 27.01 ft at 7:15AM Mar 14, 2019Observed: 27.25 ft at 7:30AM Mar 14, 2019Observed: 27.25 ft at 7:45AM Mar 14, 2019Observed: 27.34 ft at 8:00AM Mar 14, 2019Observed: 27.59 ft at 8:15AM Mar 14, 2019Observed: 27.66 ft at 8:30AM Mar 14, 2019Observed: 27.91 ft at 8:45AM Mar 14, 2019Observed: 27.85 ft at 9:00AM Mar 14, 2019Observed: 27.93 ft at 9:15AM Mar 14, 2019Observed: 27.98 ft at 9:30AM Mar 14, 2019Observed: 28.03 ft at 9:45AM Mar 14, 2019Observed: 28.12 ft at 10:00AM Mar 14, 2019Observed: 28.23 ft at 10:15AM Mar 14, 2019Observed: 28.31 ft at 10:30AM Mar 14, 2019Observed: 28.42 ft at 10:45AM Mar 14, 2019Observed: 28.49 ft at 11:00AM Mar 14, 2019Observed: 28.63 ft at 11:15AM Mar 14, 2019Observed: 28.72 ft at 11:30AM Mar 14, 2019Observed: 28.88 ft at 11:45AM Mar 14, 2019Observed: 28.98 ft at 12:00PM Mar 14, 2019Observed: 29.84 ft at 12:15PM Mar 14, 2019Observed: 30.3 ft at 12:30PM Mar 14, 2019Observed: 30.36 ft at 12:45PM Mar 14, 2019Observed: 30.36 ft at 12:46PM Mar 14, 2019Observed: 30.38 ft at 1:00PM Mar 14, 2019Observed: 30.38 ft at 1:01PM Mar 14, 2019Observed: 30.42 ft at 1:15PM Mar 14, 2019Observed: 30.42 ft at 1:16PM Mar 14, 2019Observed: 30.47 ft at 1:30PM Mar 14, 2019Observed: 30.48 ft at 1:45PM Mar 14, 2019Observed: 30.53 ft at 2:00PM Mar 14, 2019Observed: 30.54 ft at 2:15PM Mar 14, 2019Observed: 30.6 ft at 2:30PM Mar 14, 2019Observed: 30.66 ft at 2:45PM Mar 14, 2019Observed: 30.71 ft at 3:00PM Mar 14, 2019Observed: 30.75 ft at 3:15PM Mar 14, 2019Observed: 30.76 ft at 3:30PM Mar 14, 2019Observed: 30.79 ft at 3:45PM Mar 14, 2019Observed: 30.82 ft at 4:00PM Mar 14, 2019Observed: 30.83 ft at 4:15PM Mar 14, 2019Observed: 30.88 ft at 4:30PM Mar 14, 2019Observed: 30.9 ft at 4:45PM Mar 14, 2019Observed: 30.92 ft at 5:00PM Mar 14, 2019Observed: 30.98 ft at 5:15PM Mar 14, 2019Observed: 31.03 ft at 5:30PM Mar 14, 2019Observed: 31.08 ft at 5:45PM Mar 14, 2019Observed: 31.1 ft at 6:00PM Mar 14, 2019Observed: 31.14 ft at 6:15PM Mar 14, 2019Observed: 31.19 ft at 6:30PM Mar 14, 2019Observed: 31.23 ft at 6:45PM Mar 14, 2019Observed: 31.24 ft at 7:00PM Mar 14, 2019Observed: 31.28 ft at 7:15PM Mar 14, 2019Observed: 31.32 ft at 7:30PM Mar 14, 2019Observed: 31.4 ft at 7:45PM Mar 14, 2019Observed: 31.44 ft at 8:00PM Mar 14, 2019Observed: 31.44 ft at 8:15PM Mar 14, 2019Observed: 31.47 ft at 8:30PM Mar 14, 2019Observed: 31.55 ft at 8:45PM Mar 14, 2019Observed: 31.55 ft at 8:46PM Mar 14, 2019Observed: 31.59 ft at 9:00PM Mar 14, 2019Observed: 31.59 ft at 9:01PM Mar 14, 2019Observed: 31.63 ft at 9:15PM Mar 14, 2019Observed: 31.63 ft at 9:16PM Mar 14, 2019Observed: 31.72 ft at 9:30PM Mar 14, 2019Observed: 31.73 ft at 9:45PM Mar 14, 2019Observed: 31.81 ft at 10:00PM Mar 14, 2019Observed: 31.88 ft at 10:15PM Mar 14, 2019Observed: 31.94 ft at 10:30PM Mar 14, 2019Observed: 31.98 ft at 10:45PM Mar 14, 2019Observed: 32.03 ft at 11:00PM Mar 14, 2019Observed: 32.1 ft at 11:15PM Mar 14, 2019Observed: 32.15 ft at 11:30PM Mar 14, 2019Observed: 32.22 ft at 11:45PM Mar 14, 2019Observed: 32.29 ft at 12:00AM Mar 15, 2019Observed: 32.32 ft at 12:15AM Mar 15, 2019Observed: 32.41 ft at 12:30AM Mar 15, 2019Observed: 32.47 ft at 12:45AM Mar 15, 2019Observed: 32.53 ft at 1:00AM Mar 15, 2019Observed: 32.61 ft at 1:15AM Mar 15, 2019Observed: 32.71 ft at 1:30AM Mar 15, 2019Observed: 32.75 ft at 1:45AM Mar 15, 2019Observed: 32.82 ft at 2:00AM Mar 15, 2019Observed: 32.89 ft at 2:15AM Mar 15, 2019Observed: 32.94 ft at 2:30AM Mar 15, 2019Observed: 33.01 ft at 2:45AM Mar 15, 2019Observed: 33.03 ft at 3:00AM Mar 15, 2019Observed: 33.12 ft at 3:15AM Mar 15, 2019Observed: 33.17 ft at 3:30AM Mar 15, 2019Observed: 33.23 ft at 3:45AM Mar 15, 2019Observed: 33.33 ft at 4:00AM Mar 15, 2019Observed: 33.39 ft at 4:15AM Mar 15, 2019Observed: 33.46 ft at 4:30AM Mar 15, 2019Observed: 33.51 ft at 4:45AM Mar 15, 2019Observed: 33.51 ft at 4:47AM Mar 15, 2019Observed: 33.56 ft at 5:00AM Mar 15, 2019Observed: 33.56 ft at 5:02AM Mar 15, 2019Observed: 33.6 ft at 5:15AM Mar 15, 2019Observed: 33.6 ft at 5:17AM Mar 15, 2019Observed: 33.68 ft at 5:30AM Mar 15, 2019Observed: 33.76 ft at 5:45AM Mar 15, 2019Observed: 33.79 ft at 6:00AM Mar 15, 2019Observed: 33.83 ft at 6:15AM Mar 15, 2019Observed: 33.9 ft at 6:30AM Mar 15, 2019Observed: 33.9 ft at 6:45AM Mar 15, 2019Observed: 33.96 ft at 7:00AM Mar 15, 2019Observed: 34.02 ft at 7:15AM Mar 15, 2019Observed: 34.07 ft at 7:30AM Mar 15, 2019Observed: 34.1 ft at 7:45AM Mar 15, 2019Observed: 34.18 ft at 8:00AM Mar 15, 2019Observed: 34.2 ft at 8:15AM Mar 15, 2019Observed: 34.22 ft at 8:30AM Mar 15, 2019Observed: 34.25 ft at 8:45AM Mar 15, 2019Observed: 34.27 ft at 9:00AM Mar 15, 2019Observed: 34.3 ft at 9:15AM Mar 15, 2019Observed: 34.36 ft at 9:30AM Mar 15, 2019Observed: 34.4 ft at 9:45AM Mar 15, 2019Observed: 34.42 ft at 10:00AM Mar 15, 2019Observed: 34.48 ft at 10:15AM Mar 15, 2019Observed: 34.54 ft at 10:30AM Mar 15, 2019Observed: 34.53 ft at 10:45AM Mar 15, 2019Observed: 34.68 ft at 11:00AM Mar 15, 2019Observed: 34.66 ft at 11:15AM Mar 15, 2019Observed: 34.74 ft at 11:30AM Mar 15, 2019Observed: 34.8 ft at 11:45AM Mar 15, 2019Observed: 34.83 ft at 12:00PM Mar 15, 2019Observed: 34.85 ft at 12:15PM Mar 15, 2019Observed: 34.89 ft at 12:30PM Mar 15, 2019Observed: 34.94 ft at 12:45PM Mar 15, 2019Observed: 34.94 ft at 12:47PM Mar 15, 2019Observed: 34.96 ft at 1:00PM Mar 15, 2019Observed: 34.96 ft at 1:02PM Mar 15, 2019Observed: 34.99 ft at 1:15PM Mar 15, 2019Observed: 34.99 ft at 1:17PM Mar 15, 2019Observed: 35.04 ft at 1:30PM Mar 15, 2019Observed: 35.02 ft at 1:45PM Mar 15, 2019Observed: 35.08 ft at 2:00PM Mar 15, 2019Observed: 35.12 ft at 2:15PM Mar 15, 2019Observed: 35.15 ft at 2:30PM Mar 15, 2019Highest Observation: 35.2 ft at 2:45PM Mar 15, 2019Observed: 35.14 ft at 3:00PM Mar 15, 2019Observed: 35.18 ft at 3:15PM Mar 15, 2019Observed: 35.18 ft at 3:30PM Mar 15, 2019Observed: 35.17 ft at 3:45PM Mar 15, 2019Observed: 35.16 ft at 4:00PM Mar 15, 2019Observed: 35.14 ft at 4:15PM Mar 15, 2019Observed: 35.17 ft at 4:30PM Mar 15, 2019Observed: 35.14 ft at 4:45PM Mar 15, 2019Observed: 35.15 ft at 5:00PM Mar 15, 2019Observed: 35.18 ft at 5:15PM Mar 15, 2019Observed: 35.14 ft at 5:30PM Mar 15, 2019Observed: 35.15 ft at 5:45PM Mar 15, 2019Observed: 35.14 ft at 6:00PM Mar 15, 2019Observed: 35.12 ft at 6:15PM Mar 15, 2019Observed: 35.11 ft at 6:30PM Mar 15, 2019Observed: 35.11 ft at 6:45PM Mar 15, 2019Observed: 35.11 ft at 7:00PM Mar 15, 2019Observed: 35.09 ft at 7:15PM Mar 15, 2019Observed: 35.07 ft at 7:30PM Mar 15, 2019Observed: 35.07 ft at 7:45PM Mar 15, 2019Observed: 34.99 ft at 8:00PM Mar 15, 2019Observed: 34.98 ft at 8:15PM Mar 15, 2019Observed: 34.99 ft at 8:30PM Mar 15, 2019Observed: 34.93 ft at 8:45PM Mar 15, 2019Observed: 34.93 ft at 9:00PM Mar 15, 2019Observed: 34.93 ft at 9:01PM Mar 15, 2019Observed: 34.91 ft at 9:15PM Mar 15, 2019Observed: 34.91 ft at 9:16PM Mar 15, 2019Observed: 34.9 ft at 9:30PM Mar 15, 2019Observed: 34.9 ft at 9:31PM Mar 15, 2019Observed: 34.8 ft at 9:45PM Mar 15, 2019Observed: 34.8 ft at 10:00PM Mar 15, 2019Observed: 34.74 ft at 10:15PM Mar 15, 2019Observed: 34.7 ft at 10:30PM Mar 15, 2019Observed: 34.68 ft at 10:45PM Mar 15, 2019Observed: 34.66 ft at 11:00PM Mar 15, 2019Observed: 34.64 ft at 11:15PM Mar 15, 2019Observed: 34.59 ft at 11:30PM Mar 15, 2019Observed: 34.54 ft at 11:45PM Mar 15, 2019Observed: 34.5 ft at 12:00AM Mar 16, 2019Observed: 34.46 ft at 12:15AM Mar 16, 2019Observed: 34.43 ft at 12:30AM Mar 16, 2019Observed: 34.39 ft at 12:45AM Mar 16, 2019Observed: 34.37 ft at 1:00AM Mar 16, 2019Observed: 34.32 ft at 1:15AM Mar 16, 2019Observed: 34.28 ft at 1:30AM Mar 16, 2019Observed: 34.25 ft at 1:45AM Mar 16, 2019Observed: 34.22 ft at 2:00AM Mar 16, 2019Observed: 34.18 ft at 2:15AM Mar 16, 2019Observed: 34.11 ft at 2:30AM Mar 16, 2019Observed: 34.09 ft at 2:45AM Mar 16, 2019Observed: 34.07 ft at 3:00AM Mar 16, 2019Observed: 34.04 ft at 3:15AM Mar 16, 2019Observed: 33.97 ft at 3:30AM Mar 16, 2019Observed: 33.93 ft at 3:45AM Mar 16, 2019Observed: 33.91 ft at 4:00AM Mar 16, 2019Observed: 33.88 ft at 4:15AM Mar 16, 2019Observed: 33.84 ft at 4:30AM Mar 16, 2019Observed: 33.81 ft at 4:45AM Mar 16, 2019Observed: 33.74 ft at 5:00AM Mar 16, 2019Observed: 33.74 ft at 5:02AM Mar 16, 2019Observed: 33.71 ft at 5:15AM Mar 16, 2019Observed: 33.71 ft at 5:17AM Mar 16, 2019Observed: 33.68 ft at 5:30AM Mar 16, 2019Observed: 33.68 ft at 5:32AM Mar 16, 2019Observed: 33.64 ft at 5:45AM Mar 16, 2019Observed: 33.61 ft at 6:00AM Mar 16, 2019Observed: 33.59 ft at 6:15AM Mar 16, 2019Observed: 33.54 ft at 6:30AM Mar 16, 2019Observed: 33.52 ft at 6:45AM Mar 16, 2019Observed: 33.46 ft at 7:00AM Mar 16, 2019Observed: 33.44 ft at 7:15AM Mar 16, 2019Observed: 33.44 ft at 7:30AM Mar 16, 2019Observed: 33.37 ft at 7:45AM Mar 16, 2019Observed: 33.33 ft at 8:00AM Mar 16, 2019Observed: 33.31 ft at 8:15AM Mar 16, 2019Observed: 33.27 ft at 8:30AM Mar 16, 2019Observed: 33.24 ft at 8:45AM Mar 16, 2019Observed: 33.2 ft at 9:00AM Mar 16, 2019Observed: 33.19 ft at 9:15AM Mar 16, 2019Observed: 33.17 ft at 9:30AM Mar 16, 2019Observed: 33.11 ft at 9:45AM Mar 16, 2019Observed: 33.06 ft at 10:00AM Mar 16, 2019Observed: 33.08 ft at 10:15AM Mar 16, 2019Observed: 33.03 ft at 10:30AM Mar 16, 2019Observed: 33 ft at 10:45AM Mar 16, 2019Observed: 32.98 ft at 11:00AM Mar 16, 2019Observed: 32.95 ft at 11:15AM Mar 16, 2019Observed: 32.93 ft at 11:30AM Mar 16, 2019Observed: 32.92 ft at 11:45AM Mar 16, 2019Observed: 32.9 ft at 12:00PM Mar 16, 2019Observed: 32.86 ft at 12:15PM Mar 16, 2019Observed: 32.86 ft at 12:30PM Mar 16, 2019Observed: 32.84 ft at 12:45PM Mar 16, 2019Observed: 32.81 ft at 1:00PM Mar 16, 2019Observed: 32.81 ft at 1:01PM Mar 16, 2019Observed: 32.79 ft at 1:15PM Mar 16, 2019Observed: 32.79 ft at 1:16PM Mar 16, 2019Observed: 32.76 ft at 1:30PM Mar 16, 2019Observed: 32.76 ft at 1:31PM Mar 16, 2019Observed: 32.71 ft at 1:45PM Mar 16, 2019Observed: 32.68 ft at 2:00PM Mar 16, 2019Observed: 32.69 ft at 2:15PM Mar 16, 2019Observed: 32.68 ft at 2:30PM Mar 16, 2019Observed: 32.65 ft at 2:45PM Mar 16, 2019Observed: 32.64 ft at 3:00PM Mar 16, 2019Observed: 32.63 ft at 3:15PM Mar 16, 2019Observed: 32.59 ft at 3:30PM Mar 16, 2019Observed: 32.6 ft at 3:45PM Mar 16, 2019Observed: 32.55 ft at 4:00PM Mar 16, 2019Observed: 32.55 ft at 4:15PM Mar 16, 2019Observed: 32.53 ft at 4:30PM Mar 16, 2019Observed: 32.48 ft at 4:45PM Mar 16, 2019Observed: 32.49 ft at 5:00PM Mar 16, 2019Observed: 32.47 ft at 5:15PM Mar 16, 2019Observed: 32.46 ft at 5:30PM Mar 16, 2019Observed: 32.43 ft at 5:45PM Mar 16, 2019Observed: 32.43 ft at 6:00PM Mar 16, 2019Observed: 32.4 ft at 6:15PM Mar 16, 2019Observed: 32.38 ft at 6:30PM Mar 16, 2019Observed: 32.37 ft at 6:45PM Mar 16, 2019Observed: 32.34 ft at 7:00PM Mar 16, 2019Observed: 32.33 ft at 7:15PM Mar 16, 2019Observed: 32.32 ft at 7:30PM Mar 16, 2019Observed: 32.3 ft at 7:45PM Mar 16, 2019Observed: 32.3 ft at 8:00PM Mar 16, 2019Observed: 32.28 ft at 8:15PM Mar 16, 2019Observed: 32.24 ft at 8:30PM Mar 16, 2019Observed: 32.23 ft at 8:45PM Mar 16, 2019Observed: 32.21 ft at 9:00PM Mar 16, 2019Observed: 32.21 ft at 9:01PM Mar 16, 2019Observed: 32.18 ft at 9:15PM Mar 16, 2019Observed: 32.18 ft at 9:16PM Mar 16, 2019Observed: 32.16 ft at 9:30PM Mar 16, 2019Observed: 32.16 ft at 9:31PM Mar 16, 2019Observed: 32.13 ft at 9:45PM Mar 16, 2019Observed: 32.11 ft at 10:00PM Mar 16, 2019Observed: 32.09 ft at 10:15PM Mar 16, 2019Observed: 32.06 ft at 10:30PM Mar 16, 2019Observed: 32.05 ft at 10:45PM Mar 16, 2019Observed: 32.04 ft at 11:00PM Mar 16, 2019Observed: 31.98 ft at 11:15PM Mar 16, 2019Observed: 31.97 ft at 11:30PM Mar 16, 2019Observed: 31.95 ft at 11:45PM Mar 16, 2019Observed: 31.92 ft at 12:00AM Mar 17, 2019Observed: 31.89 ft at 12:15AM Mar 17, 2019Observed: 31.88 ft at 12:30AM Mar 17, 2019Observed: 31.86 ft at 12:45AM Mar 17, 2019Observed: 31.85 ft at 1:00AM Mar 17, 2019Observed: 31.8 ft at 1:15AM Mar 17, 2019Observed: 31.78 ft at 1:30AM Mar 17, 2019Observed: 31.75 ft at 1:45AM Mar 17, 2019Observed: 31.73 ft at 2:00AM Mar 17, 2019Observed: 31.7 ft at 2:15AM Mar 17, 2019Observed: 31.66 ft at 2:30AM Mar 17, 2019Observed: 31.66 ft at 2:45AM Mar 17, 2019Observed: 31.63 ft at 3:00AM Mar 17, 2019Observed: 31.59 ft at 3:15AM Mar 17, 2019Observed: 31.56 ft at 3:30AM Mar 17, 2019Observed: 31.5 ft at 3:45AM Mar 17, 2019Observed: 31.5 ft at 4:00AM Mar 17, 2019Observed: 31.49 ft at 4:15AM Mar 17, 2019Observed: 31.45 ft at 4:30AM Mar 17, 2019Observed: 31.43 ft at 4:45AM Mar 17, 2019Observed: 31.41 ft at 5:00AM Mar 17, 2019Observed: 31.41 ft at 5:02AM Mar 17, 2019Observed: 31.38 ft at 5:15AM Mar 17, 2019Observed: 31.38 ft at 5:17AM Mar 17, 2019Observed: 31.34 ft at 5:30AM Mar 17, 2019Observed: 31.34 ft at 5:32AM Mar 17, 2019Observed: 31.34 ft at 5:45AM Mar 17, 2019Observed: 31.29 ft at 6:00AM Mar 17, 2019Observed: 31.26 ft at 6:15AM Mar 17, 2019Observed: 31.24 ft at 6:30AM Mar 17, 2019Observed: 31.19 ft at 6:45AM Mar 17, 2019Observed: 31.19 ft at 7:00AM Mar 17, 2019Observed: 31.15 ft at 7:15AM Mar 17, 2019Observed: 31.14 ft at 7:30AM Mar 17, 2019Observed: 31.11 ft at 7:45AM Mar 17, 2019Observed: 31.09 ft at 8:00AM Mar 17, 2019Observed: 31.04 ft at 8:15AM Mar 17, 2019Observed: 31.03 ft at 8:30AM Mar 17, 2019Observed: 31 ft at 8:45AM Mar 17, 2019Observed: 30.98 ft at 9:00AM Mar 17, 2019Observed: 30.95 ft at 9:15AM Mar 17, 2019Observed: 30.92 ft at 9:30AM Mar 17, 2019Observed: 30.9 ft at 9:45AM Mar 17, 2019Observed: 30.87 ft at 10:00AM Mar 17, 2019Observed: 30.85 ft at 10:15AM Mar 17, 2019Observed: 30.82 ft at 10:30AM Mar 17, 2019Observed: 30.77 ft at 10:45AM Mar 17, 2019Observed: 30.76 ft at 11:00AM Mar 17, 2019Observed: 30.77 ft at 11:15AM Mar 17, 2019Observed: 30.74 ft at 11:30AM Mar 17, 2019Observed: 30.72 ft at 11:45AM Mar 17, 2019Observed: 30.69 ft at 12:00PM Mar 17, 2019Observed: 30.69 ft at 12:15PM Mar 17, 2019Observed: 30.66 ft at 12:30PM Mar 17, 2019Observed: 30.63 ft at 12:45PM Mar 17, 2019Observed: 30.63 ft at 1:00PM Mar 17, 2019Observed: 30.63 ft at 1:01PM Mar 17, 2019Observed: 30.61 ft at 1:15PM Mar 17, 2019Observed: 30.61 ft at 1:16PM Mar 17, 2019Observed: 30.61 ft at 1:30PM Mar 17, 2019Observed: 30.61 ft at 1:31PM Mar 17, 2019Observed: 30.58 ft at 1:45PM Mar 17, 2019Observed: 30.58 ft at 2:00PM Mar 17, 2019Observed: 30.57 ft at 2:15PM Mar 17, 2019Observed: 30.56 ft at 2:30PM Mar 17, 2019Observed: 30.57 ft at 2:45PM Mar 17, 2019Observed: 30.56 ft at 3:00PM Mar 17, 2019Observed: 30.53 ft at 3:15PM Mar 17, 2019Observed: 30.54 ft at 3:30PM Mar 17, 2019Observed: 30.54 ft at 3:45PM Mar 17, 2019Observed: 30.55 ft at 4:00PM Mar 17, 2019Observed: 30.54 ft at 4:15PM Mar 17, 2019Observed: 30.53 ft at 4:30PM Mar 17, 2019Observed: 30.53 ft at 4:45PM Mar 17, 2019Observed: 30.52 ft at 5:00PM Mar 17, 2019Observed: 30.53 ft at 5:15PM Mar 17, 2019Observed: 30.54 ft at 5:30PM Mar 17, 2019Observed: 30.52 ft at 5:45PM Mar 17, 2019Observed: 30.54 ft at 6:00PM Mar 17, 2019Observed: 30.55 ft at 6:15PM Mar 17, 2019Observed: 30.55 ft at 6:30PM Mar 17, 2019Observed: 30.54 ft at 6:45PM Mar 17, 2019Observed: 30.55 ft at 7:00PM Mar 17, 2019Observed: 30.57 ft at 7:15PM Mar 17, 2019Observed: 30.55 ft at 7:30PM Mar 17, 2019Observed: 30.56 ft at 7:45PM Mar 17, 2019Observed: 30.55 ft at 8:00PM Mar 17, 2019Observed: 30.56 ft at 8:15PM Mar 17, 2019Observed: 30.57 ft at 8:30PM Mar 17, 2019Observed: 30.58 ft at 8:45PM Mar 17, 2019Observed: 30.58 ft at 9:00PM Mar 17, 2019Observed: 30.58 ft at 9:01PM Mar 17, 2019Observed: 30.6 ft at 9:15PM Mar 17, 2019Observed: 30.6 ft at 9:16PM Mar 17, 2019Observed: 30.59 ft at 9:30PM Mar 17, 2019Observed: 30.59 ft at 9:31PM Mar 17, 2019Observed: 30.59 ft at 9:45PM Mar 17, 2019Observed: 30.59 ft at 10:00PM Mar 17, 2019Observed: 30.59 ft at 10:15PM Mar 17, 2019Observed: 30.59 ft at 10:30PM Mar 17, 2019Observed: 30.6 ft at 10:45PM Mar 17, 2019Observed: 30.6 ft at 11:00PM Mar 17, 2019Observed: 30.58 ft at 11:15PM Mar 17, 2019Observed: 30.57 ft at 11:30PM Mar 17, 2019Observed: 30.57 ft at 11:45PM Mar 17, 2019Observed: 30.56 ft at 12:00AM Mar 18, 2019Observed: 30.55 ft at 12:15AM Mar 18, 2019Observed: 30.56 ft at 12:30AM Mar 18, 2019Observed: 30.54 ft at 12:45AM Mar 18, 2019Observed: 30.56 ft at 1:00AM Mar 18, 2019Observed: 30.55 ft at 1:15AM Mar 18, 2019Observed: 30.55 ft at 1:30AM Mar 18, 2019Observed: 30.54 ft at 1:45AM Mar 18, 2019Observed: 30.53 ft at 2:00AM Mar 18, 2019Observed: 30.53 ft at 2:15AM Mar 18, 2019Observed: 30.51 ft at 2:30AM Mar 18, 2019Observed: 30.5 ft at 2:45AM Mar 18, 2019Observed: 30.5 ft at 3:00AM Mar 18, 2019Observed: 30.47 ft at 3:15AM Mar 18, 2019Observed: 30.48 ft at 3:30AM Mar 18, 2019Observed: 30.45 ft at 3:45AM Mar 18, 2019Observed: 30.44 ft at 4:00AM Mar 18, 2019Observed: 30.43 ft at 4:15AM Mar 18, 2019Observed: 30.43 ft at 4:30AM Mar 18, 2019Observed: 30.42 ft at 4:45AM Mar 18, 2019Observed: 30.4 ft at 5:00AM Mar 18, 2019Observed: 30.38 ft at 5:15AM Mar 18, 2019Observed: 30.36 ft at 5:30AM Mar 18, 2019Observed: 30.37 ft at 5:45AM Mar 18, 2019Observed: 30.35 ft at 6:00AM Mar 18, 2019Observed: 30.34 ft at 6:15AM Mar 18, 2019Observed: 30.32 ft at 6:30AM Mar 18, 2019Observed: 30.3 ft at 6:45AM Mar 18, 2019Observed: 30.31 ft at 7:00AM Mar 18, 2019Observed: 30.29 ft at 7:15AM Mar 18, 2019Observed: 30.28 ft at 7:30AM Mar 18, 2019Observed: 30.27 ft at 7:45AM Mar 18, 2019Observed: 30.26 ft at 8:00AM Mar 18, 2019Observed: 30.26 ft at 8:15AM Mar 18, 2019Observed: 30.26 ft at 8:30AM Mar 18, 2019Observed: 30.23 ft at 8:45AM Mar 18, 2019Observed: 30.25 ft at 9:00AM Mar 18, 2019Observed: 30.24 ft at 9:15AM Mar 18, 2019Observed: 30.23 ft at 9:30AM Mar 18, 2019Observed: 30.22 ft at 9:45AM Mar 18, 2019Observed: 30.23 ft at 10:00AM Mar 18, 2019Observed: 30.21 ft at 10:15AM Mar 18, 2019Observed: 30.22 ft at 10:30AM Mar 18, 2019Observed: 30.22 ft at 10:45AM Mar 18, 2019Observed: 30.23 ft at 11:00AM Mar 18, 2019Observed: 30.2 ft at 11:15AM Mar 18, 2019Observed: 30.2 ft at 11:30AM Mar 18, 2019Observed: 30.25 ft at 11:45AM Mar 18, 2019Observed: 30.23 ft at 12:00PM Mar 18, 2019Observed: 30.23 ft at 12:15PM Mar 18, 2019Observed: 30.22 ft at 12:30PM Mar 18, 2019Observed: 30.23 ft at 12:45PM Mar 18, 2019Observed: 30.22 ft at 1:00PM Mar 18, 2019Observed: 30.22 ft at 1:02PM Mar 18, 2019Observed: 30.23 ft at 1:15PM Mar 18, 2019Observed: 30.23 ft at 1:17PM Mar 18, 2019Observed: 30.25 ft at 1:30PM Mar 18, 2019Observed: 30.25 ft at 1:32PM Mar 18, 2019Observed: 30.22 ft at 1:45PM Mar 18, 2019Observed: 30.22 ft at 2:00PM Mar 18, 2019Observed: 30.23 ft at 2:15PM Mar 18, 2019Observed: 30.24 ft at 2:30PM Mar 18, 2019Observed: 30.24 ft at 2:45PM Mar 18, 2019Observed: 30.24 ft at 3:00PM Mar 18, 2019Observed: 30.24 ft at 3:15PM Mar 18, 2019Observed: 30.25 ft at 3:30PM Mar 18, 2019Observed: 30.25 ft at 3:45PM Mar 18, 2019Observed: 30.25 ft at 4:00PM Mar 18, 2019Observed: 30.26 ft at 4:15PM Mar 18, 2019Observed: 30.26 ft at 4:30PM Mar 18, 2019Observed: 30.27 ft at 4:45PM Mar 18, 2019Observed: 30.27 ft at 5:00PM Mar 18, 2019Observed: 30.27 ft at 5:15PM Mar 18, 2019Observed: 30.29 ft at 5:30PM Mar 18, 2019Observed: 30.29 ft at 5:45PM Mar 18, 2019Observed: 30.29 ft at 6:00PM Mar 18, 2019Observed: 30.3 ft at 6:15PM Mar 18, 2019Observed: 30.32 ft at 6:30PM Mar 18, 2019Observed: 30.3 ft at 6:45PM Mar 18, 2019Observed: 30.29 ft at 7:00PM Mar 18, 2019Observed: 30.31 ft at 7:15PM Mar 18, 2019Observed: 30.31 ft at 7:30PM Mar 18, 2019Observed: 30.32 ft at 7:45PM Mar 18, 2019Observed: 30.33 ft at 8:00PM Mar 18, 2019Observed: 30.32 ft at 8:15PM Mar 18, 2019Observed: 30.31 ft at 8:30PM Mar 18, 2019Observed: 30.32 ft at 8:45PM Mar 18, 2019Observed: 30.31 ft at 9:00PM Mar 18, 2019Observed: 30.31 ft at 9:01PM Mar 18, 2019Observed: 30.31 ft at 9:15PM Mar 18, 2019Observed: 30.31 ft at 9:16PM Mar 18, 2019Observed: 30.33 ft at 9:30PM Mar 18, 2019Observed: 30.33 ft at 9:31PM Mar 18, 2019Observed: 30.32 ft at 9:45PM Mar 18, 2019Observed: 30.31 ft at 10:00PM Mar 18, 2019Observed: 30.32 ft at 10:15PM Mar 18, 2019Observed: 30.34 ft at 10:30PM Mar 18, 2019Observed: 30.32 ft at 10:45PM Mar 18, 2019Observed: 30.32 ft at 11:00PM Mar 18, 2019Observed: 30.31 ft at 11:15PM Mar 18, 2019Observed: 30.33 ft at 11:30PM Mar 18, 2019Observed: 30.3 ft at 11:45PM Mar 18, 2019Observed: 30.32 ft at 12:00AM Mar 19, 2019Observed: 30.33 ft at 12:15AM Mar 19, 2019Observed: 30.33 ft at 12:30AM Mar 19, 2019Observed: 30.32 ft at 12:45AM Mar 19, 2019Observed: 30.31 ft at 1:00AM Mar 19, 2019Observed: 30.3 ft at 1:15AM Mar 19, 2019Observed: 30.32 ft at 1:30AM Mar 19, 2019Observed: 30.3 ft at 1:45AM Mar 19, 2019Observed: 30.32 ft at 2:00AM Mar 19, 2019Observed: 30.31 ft at 2:15AM Mar 19, 2019Observed: 30.31 ft at 2:30AM Mar 19, 2019Observed: 30.29 ft at 2:45AM Mar 19, 2019Observed: 30.3 ft at 3:00AM Mar 19, 2019Observed: 30.28 ft at 3:15AM Mar 19, 2019Observed: 30.3 ft at 3:30AM Mar 19, 2019Observed: 30.3 ft at 3:45AM Mar 19, 2019Observed: 30.3 ft at 4:00AM Mar 19, 2019Observed: 30.28 ft at 4:15AM Mar 19, 2019Observed: 30.29 ft at 4:30AM Mar 19, 2019Observed: 30.27 ft at 4:45AM Mar 19, 2019Observed: 30.27 ft at 5:00AM Mar 19, 2019Observed: 30.27 ft at 5:15AM Mar 19, 2019Observed: 30.27 ft at 5:17AM Mar 19, 2019Observed: 30.27 ft at 5:30AM Mar 19, 2019Observed: 30.27 ft at 5:32AM Mar 19, 2019Observed: 30.27 ft at 5:45AM Mar 19, 2019Observed: 30.27 ft at 5:47AM Mar 19, 2019Observed: 30.25 ft at 6:00AM Mar 19, 2019Observed: 30.25 ft at 6:15AM Mar 19, 2019Observed: 30.24 ft at 6:30AM Mar 19, 2019Observed: 30.23 ft at 6:45AM Mar 19, 2019Observed: 30.25 ft at 7:00AM Mar 19, 2019Observed: 30.23 ft at 7:15AM Mar 19, 2019Observed: 30.24 ft at 7:30AM Mar 19, 2019Observed: 30.21 ft at 7:45AM Mar 19, 2019Observed: 30.19 ft at 8:00AM Mar 19, 2019Observed: 30.18 ft at 8:15AM Mar 19, 2019Observed: 30.18 ft at 8:30AM Mar 19, 2019Observed: 30.17 ft at 8:45AM Mar 19, 2019Observed: 30.17 ft at 9:00AM Mar 19, 2019Observed: 30.14 ft at 9:15AM Mar 19, 2019Observed: 30.15 ft at 9:30AM Mar 19, 2019Observed: 30.15 ft at 9:45AM Mar 19, 2019Observed: 30.14 ft at 10:00AM Mar 19, 2019Observed: 30.14 ft at 10:15AM Mar 19, 2019Observed: 30.12 ft at 10:30AM Mar 19, 2019Observed: 30.12 ft at 10:45AM Mar 19, 2019Observed: 30.11 ft at 11:00AM Mar 19, 2019Observed: 30.11 ft at 11:15AM Mar 19, 2019Observed: 30.09 ft at 11:30AM Mar 19, 2019Observed: 30.08 ft at 11:45AM Mar 19, 2019Observed: 30.07 ft at 12:00PM Mar 19, 2019Observed: 30.07 ft at 12:15PM Mar 19, 2019Observed: 30.06 ft at 12:30PM Mar 19, 2019Observed: 30.06 ft at 12:45PM Mar 19, 2019Observed: 30.03 ft at 1:00PM Mar 19, 2019Observed: 30.06 ft at 1:15PM Mar 19, 2019Observed: 30.06 ft at 1:16PM Mar 19, 2019Observed: 30.02 ft at 1:30PM Mar 19, 2019Observed: 30.02 ft at 1:31PM Mar 19, 2019Observed: 30.04 ft at 1:45PM Mar 19, 2019Observed: 30.04 ft at 1:46PM Mar 19, 2019Observed: 30.01 ft at 2:00PM Mar 19, 2019Observed: 30.03 ft at 2:15PM Mar 19, 2019Observed: 30 ft at 2:30PM Mar 19, 2019Observed: 30.01 ft at 2:45PM Mar 19, 2019Observed: 30 ft at 3:00PM Mar 19, 2019Observed: 29.99 ft at 3:15PM Mar 19, 2019Observed: 30.01 ft at 3:30PM Mar 19, 2019Observed: 30 ft at 3:45PM Mar 19, 2019Observed: 30 ft at 4:00PM Mar 19, 2019Observed: 29.99 ft at 4:15PM Mar 19, 2019Observed: 29.99 ft at 4:30PM Mar 19, 2019Observed: 29.99 ft at 4:45PM Mar 19, 2019Observed: 29.97 ft at 5:00PM Mar 19, 2019Observed: 29.98 ft at 5:15PM Mar 19, 2019Observed: 29.97 ft at 5:30PM Mar 19, 2019Observed: 29.96 ft at 5:45PM Mar 19, 2019Observed: 29.96 ft at 6:00PM Mar 19, 2019Observed: 29.98 ft at 6:15PM Mar 19, 2019Observed: 29.96 ft at 6:30PM Mar 19, 2019Observed: 29.96 ft at 6:45PM Mar 19, 2019Observed: 29.98 ft at 7:00PM Mar 19, 2019Observed: 29.98 ft at 7:15PM Mar 19, 2019Observed: 29.96 ft at 7:30PM Mar 19, 2019Observed: 29.98 ft at 7:45PM Mar 19, 2019Observed: 29.97 ft at 8:00PM Mar 19, 2019Observed: 29.96 ft at 8:15PM Mar 19, 2019Observed: 29.95 ft at 8:30PM Mar 19, 2019Observed: 29.95 ft at 8:45PM Mar 19, 2019Observed: 29.94 ft at 9:00PM Mar 19, 2019Observed: 29.96 ft at 9:15PM Mar 19, 2019Observed: 29.96 ft at 9:16PM Mar 19, 2019Observed: 29.94 ft at 9:30PM Mar 19, 2019Observed: 29.94 ft at 9:31PM Mar 19, 2019Observed: 29.94 ft at 9:45PM Mar 19, 2019Observed: 29.94 ft at 9:46PM Mar 19, 2019Observed: 29.91 ft at 10:00PM Mar 19, 2019Observed: 29.91 ft at 10:15PM Mar 19, 2019Observed: 29.91 ft at 10:30PM Mar 19, 2019Observed: 29.92 ft at 10:45PM Mar 19, 2019Observed: 29.9 ft at 11:00PM Mar 19, 2019Observed: 29.91 ft at 11:15PM Mar 19, 2019Observed: 29.9 ft at 11:30PM Mar 19, 2019Observed: 29.88 ft at 11:45PM Mar 19, 2019Observed: 29.89 ft at 12:00AM Mar 20, 2019Observed: 29.88 ft at 12:15AM Mar 20, 2019Observed: 29.86 ft at 12:30AM Mar 20, 2019Observed: 29.87 ft at 12:45AM Mar 20, 2019Observed: 29.85 ft at 1:00AM Mar 20, 2019Observed: 29.84 ft at 1:15AM Mar 20, 2019Observed: 29.85 ft at 1:30AM Mar 20, 2019Observed: 29.83 ft at 1:45AM Mar 20, 2019Observed: 29.81 ft at 2:00AM Mar 20, 2019Observed: 29.82 ft at 2:15AM Mar 20, 2019Observed: 29.82 ft at 2:30AM Mar 20, 2019Observed: 29.81 ft at 2:45AM Mar 20, 2019Observed: 29.78 ft at 3:00AM Mar 20, 2019Observed: 29.78 ft at 3:15AM Mar 20, 2019Observed: 29.76 ft at 3:30AM Mar 20, 2019Observed: 29.75 ft at 3:45AM Mar 20, 2019Observed: 29.73 ft at 4:00AM Mar 20, 2019Observed: 29.72 ft at 4:15AM Mar 20, 2019Observed: 29.71 ft at 4:30AM Mar 20, 2019Observed: 29.71 ft at 4:45AM Mar 20, 2019Observed: 29.69 ft at 5:00AM Mar 20, 2019Observed: 29.66 ft at 5:15AM Mar 20, 2019Observed: 29.66 ft at 5:16AM Mar 20, 2019Observed: 29.67 ft at 5:30AM Mar 20, 2019Observed: 29.67 ft at 5:31AM Mar 20, 2019Observed: 29.65 ft at 5:45AM Mar 20, 2019Observed: 29.65 ft at 5:46AM Mar 20, 2019Observed: 29.62 ft at 6:00AM Mar 20, 2019Observed: 29.63 ft at 6:15AM Mar 20, 2019Observed: 29.62 ft at 6:30AM Mar 20, 2019Observed: 29.6 ft at 6:45AM Mar 20, 2019Observed: 29.58 ft at 7:00AM Mar 20, 2019Observed: 29.57 ft at 7:15AM Mar 20, 2019Observed: 29.56 ft at 7:30AM Mar 20, 2019Observed: 29.54 ft at 7:45AM Mar 20, 2019Observed: 29.52 ft at 8:00AM Mar 20, 2019Observed: 29.52 ft at 8:15AM Mar 20, 2019Observed: 29.51 ft at 8:30AM Mar 20, 2019Observed: 29.48 ft at 8:45AM Mar 20, 2019Observed: 29.45 ft at 9:00AM Mar 20, 2019Observed: 29.44 ft at 9:15AM Mar 20, 2019Observed: 29.42 ft at 9:30AM Mar 20, 2019Observed: 29.45 ft at 9:45AM Mar 20, 2019Observed: 29.41 ft at 10:00AM Mar 20, 2019Observed: 29.39 ft at 10:15AM Mar 20, 2019Observed: 29.41 ft at 10:30AM Mar 20, 2019Observed: 29.4 ft at 10:45AM Mar 20, 2019Observed: 29.39 ft at 11:00AM Mar 20, 2019Observed: 29.37 ft at 11:15AM Mar 20, 2019Observed: 29.35 ft at 11:30AM Mar 20, 2019Observed: 29.34 ft at 11:45AM Mar 20, 2019Observed: 29.35 ft at 12:00PM Mar 20, 2019Observed: 29.34 ft at 12:15PM Mar 20, 2019Observed: 29.33 ft at 12:30PM Mar 20, 2019Observed: 29.31 ft at 12:45PM Mar 20, 2019Observed: 29.3 ft at 1:00PM Mar 20, 2019Observed: 29.3 ft at 1:15PM Mar 20, 2019Observed: 29.3 ft at 1:16PM Mar 20, 2019Observed: 29.29 ft at 1:30PM Mar 20, 2019Observed: 29.29 ft at 1:31PM Mar 20, 2019Observed: 29.3 ft at 1:45PM Mar 20, 2019Observed: 29.3 ft at 1:46PM Mar 20, 2019Observed: 29.27 ft at 2:00PM Mar 20, 2019Observed: 29.26 ft at 2:15PM Mar 20, 2019Observed: 29.27 ft at 2:30PM Mar 20, 2019Observed: 29.26 ft at 2:45PM Mar 20, 2019Observed: 29.28 ft at 3:00PM Mar 20, 2019Observed: 29.27 ft at 3:15PM Mar 20, 2019Observed: 29.25 ft at 3:30PM Mar 20, 2019Observed: 29.24 ft at 3:45PM Mar 20, 2019Observed: 29.25 ft at 4:00PM Mar 20, 2019Observed: 29.22 ft at 4:15PM Mar 20, 2019Observed: 29.22 ft at 4:30PM Mar 20, 2019Observed: 29.23 ft at 4:45PM Mar 20, 2019Observed: 29.22 ft at 5:00PM Mar 20, 2019Observed: 29.22 ft at 5:15PM Mar 20, 2019Observed: 29.22 ft at 5:30PM Mar 20, 2019Observed: 29.21 ft at 5:45PM Mar 20, 2019Observed: 29.21 ft at 6:00PM Mar 20, 2019Observed: 29.21 ft at 6:15PM Mar 20, 2019Observed: 29.21 ft at 6:30PM Mar 20, 2019Observed: 29.2 ft at 6:45PM Mar 20, 2019Observed: 29.2 ft at 7:00PM Mar 20, 2019Observed: 29.21 ft at 7:15PM Mar 20, 2019Observed: 29.19 ft at 7:30PM Mar 20, 2019Observed: 29.2 ft at 7:45PM Mar 20, 2019Observed: 29.19 ft at 8:00PM Mar 20, 2019Observed: 29.2 ft at 8:15PM Mar 20, 2019Observed: 29.18 ft at 8:30PM Mar 20, 2019Observed: 29.19 ft at 8:45PM Mar 20, 2019Observed: 29.17 ft at 9:00PM Mar 20, 2019Observed: 29.17 ft at 9:15PM Mar 20, 2019Observed: 29.17 ft at 9:16PM Mar 20, 2019Observed: 29.18 ft at 9:30PM Mar 20, 2019Observed: 29.18 ft at 9:31PM Mar 20, 2019Observed: 29.16 ft at 9:45PM Mar 20, 2019Observed: 29.16 ft at 9:46PM Mar 20, 2019Observed: 29.18 ft at 10:00PM Mar 20, 2019Observed: 29.16 ft at 10:15PM Mar 20, 2019Observed: 29.15 ft at 10:30PM Mar 20, 2019Observed: 29.16 ft at 10:45PM Mar 20, 2019Observed: 29.15 ft at 11:00PM Mar 20, 2019Observed: 29.16 ft at 11:15PM Mar 20, 2019Observed: 29.15 ft at 11:30PM Mar 20, 2019Observed: 29.14 ft at 11:45PM Mar 20, 2019Observed: 29.16 ft at 12:00AM Mar 21, 2019Observed: 29.14 ft at 12:15AM Mar 21, 2019Observed: 29.16 ft at 12:30AM Mar 21, 2019Observed: 29.14 ft at 12:45AM Mar 21, 2019Observed: 29.13 ft at 1:00AM Mar 21, 2019Observed: 29.13 ft at 1:15AM Mar 21, 2019Observed: 29.14 ft at 1:30AM Mar 21, 2019Observed: 29.13 ft at 1:45AM Mar 21, 2019Observed: 29.13 ft at 2:00AM Mar 21, 2019Observed: 29.14 ft at 2:15AM Mar 21, 2019Observed: 29.13 ft at 2:30AM Mar 21, 2019Observed: 29.12 ft at 2:45AM Mar 21, 2019Observed: 29.12 ft at 3:00AM Mar 21, 2019Observed: 29.12 ft at 3:15AM Mar 21, 2019Observed: 29.14 ft at 3:30AM Mar 21, 2019Observed: 29.12 ft at 3:45AM Mar 21, 2019Observed: 29.09 ft at 4:00AM Mar 21, 2019Observed: 29.13 ft at 4:15AM Mar 21, 2019Observed: 29.11 ft at 4:30AM Mar 21, 2019Observed: 29.12 ft at 4:45AM Mar 21, 2019Observed: 29.14 ft at 5:00AM Mar 21, 2019Observed: 29.11 ft at 5:15AM Mar 21, 2019Observed: 29.11 ft at 5:16AM Mar 21, 2019Observed: 29.13 ft at 5:30AM Mar 21, 2019Observed: 29.13 ft at 5:31AM Mar 21, 2019Observed: 29.14 ft at 5:45AM Mar 21, 2019Observed: 29.14 ft at 5:46AM Mar 21, 2019Observed: 29.14 ft at 6:00AM Mar 21, 2019Observed: 29.13 ft at 6:15AM Mar 21, 2019Observed: 29.14 ft at 6:30AM Mar 21, 2019Observed: 29.14 ft at 6:45AM Mar 21, 2019Observed: 29.16 ft at 7:00AM Mar 21, 2019Observed: 29.15 ft at 7:15AM Mar 21, 2019Observed: 29.16 ft at 7:30AM Mar 21, 2019Forecast: 28.8 ft 1:00PM Mar 21, 2019Forecast: 28.8 ft 7:00PM Mar 21, 2019Forecast: 28.8 ft 1:00AM Mar 22, 2019Forecast: 28.9 ft 7:00AM Mar 22, 2019Forecast: 29.1 ft 1:00PM Mar 22, 2019Forecast: 29.2 ft 7:00PM Mar 22, 2019Forecast: 29.4 ft 1:00AM Mar 23, 2019Forecast: 29.6 ft 7:00AM Mar 23, 2019Forecast: 29.6 ft 1:00PM Mar 23, 2019Forecast: 29.4 ft 7:00PM Mar 23, 2019Forecast: 29 ft 1:00AM Mar 24, 2019Forecast: 28.6 ft 7:00AM Mar 24, 2019Forecast: 28.2 ft 1:00PM Mar 24, 2019Forecast: 27.9 ft 7:00PM Mar 24, 2019Forecast: 27.7 ft 1:00AM Mar 25, 2019Forecast: 27.5 ft 7:00AM Mar 25, 2019Forecast: 27.4 ft 1:00PM Mar 25, 2019Forecast: 27.4 ft 7:00PM Mar 25, 2019Forecast: 27.5 ft 1:00AM Mar 26, 2019Forecast: 27.7 ft 7:00AM Mar 26, 2019Forecast: 28.1 ft 1:00PM Mar 26, 2019Forecast: 28.8 ft 7:00PM Mar 26, 2019Forecast: 29.7 ft 1:00AM Mar 27, 2019Forecast: 30.8 ft 7:00AM Mar 27, 2019Forecast: 32 ft 1:00PM Mar 27, 2019Forecast: 33 ft 7:00PM Mar 27, 2019Forecast: 33.7 ft 1:00AM Mar 28, 2019Highest Forecast: 33.8 ft 7:00AM Mar 28, 2019Forecast: 33.5 ft 1:00PM Mar 28, 2019Forecast: 32.7 ft 7:00PM Mar 28, 2019Forecast: 31.8 ft 1:00AM Mar 29, 2019Forecast: 30.8 ft 7:00AM Mar 29, 2019Forecast: 30.1 ft 1:00PM Mar 29, 2019Forecast: 29.6 ft 7:00PM Mar 29, 2019Forecast: 29.3 ft 1:00AM Mar 30, 2019Forecast: 29.2 ft 7:00AM Mar 30, 2019Forecast: 29.3 ft 1:00PM Mar 30, 2019Forecast: 29.8 ft 7:00PM Mar 30, 2019USGS--Water Resources of the United StatesHWDI4(plotting HGIRG) Graph Created (8:18AM Mar 21, 2019)ObservedForecast (issued 9:26PM Mar 20)Latest observed value: 29.16 ft at 7:30 AM CDT 21-Mar-2019. Flood Stage is 20.5 ft
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Tabular Data (UTC)
Tabular Data (CDT)
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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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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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
Collaborative Agencies Collapse
The National Weather Service prepares its forecasts and other services in collaboration with agencies like the US Geological Survey, US Bureau of Reclamation, US Army Corps of Engineers, Natural Resource Conservation Service, National Park Service, ALERT Users Group, Bureau of Indian Affairs, and many state and local emergency managers across the country. For details, please click here.
NWS Information
National Weather Service
Sioux Falls Weather Forecast Office
26 Weather Lane
Sioux Falls, SD 57104-0198
(605) 330-4247
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