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Hydrograph River at a Glance Download
Big Sioux River near Egan Stage (ft)Flow (cfs)Observed: 1508.88 ft at 6:00PM Jan 25, 2023Observed: 1508.88 ft at 6:15PM Jan 25, 2023Observed: 1508.87 ft at 6:30PM Jan 25, 2023Observed: 1508.88 ft at 6:45PM Jan 25, 2023Observed: 1508.88 ft at 7:00PM Jan 25, 2023Observed: 1508.87 ft at 7:15PM Jan 25, 2023Observed: 1508.87 ft at 7:30PM Jan 25, 2023Observed: 1508.87 ft at 7:45PM Jan 25, 2023Observed: 1508.88 ft at 8:00PM Jan 25, 2023Observed: 1508.88 ft at 8:15PM Jan 25, 2023Observed: 1508.88 ft at 8:30PM Jan 25, 2023Observed: 1508.88 ft at 8:45PM Jan 25, 2023Observed: 1508.88 ft at 9:00PM Jan 25, 2023Observed: 1508.88 ft at 9:15PM Jan 25, 2023Observed: 1508.89 ft at 9:30PM Jan 25, 2023Observed: 1508.89 ft at 9:45PM Jan 25, 2023Observed: 1508.89 ft at 10:00PM Jan 25, 2023Observed: 1508.89 ft at 10:15PM Jan 25, 2023Observed: 1508.89 ft at 10:30PM Jan 25, 2023Observed: 1508.89 ft at 10:45PM Jan 25, 2023Observed: 1508.89 ft at 11:00PM Jan 25, 2023Observed: 1508.9 ft at 11:15PM Jan 25, 2023Observed: 1508.9 ft at 11:30PM Jan 25, 2023Observed: 1508.9 ft at 11:45PM Jan 25, 2023Observed: 1508.9 ft at 12:00AM Jan 26, 2023Observed: 1508.9 ft at 12:15AM Jan 26, 2023Observed: 1508.9 ft at 12:30AM Jan 26, 2023Observed: 1508.9 ft at 12:45AM Jan 26, 2023Observed: 1508.9 ft at 1:00AM Jan 26, 2023Observed: 1508.9 ft at 1:15AM Jan 26, 2023Observed: 1508.9 ft at 1:30AM Jan 26, 2023Observed: 1508.9 ft at 1:45AM Jan 26, 2023Observed: 1508.9 ft at 2:00AM Jan 26, 2023Observed: 1508.9 ft at 2:15AM Jan 26, 2023Observed: 1508.9 ft at 2:30AM Jan 26, 2023Observed: 1508.9 ft at 2:45AM Jan 26, 2023Observed: 1508.9 ft at 3:00AM Jan 26, 2023Observed: 1508.9 ft at 3:15AM Jan 26, 2023Observed: 1508.9 ft at 3:30AM Jan 26, 2023Observed: 1508.9 ft at 3:45AM Jan 26, 2023Observed: 1508.9 ft at 4:00AM Jan 26, 2023Observed: 1508.9 ft at 4:15AM Jan 26, 2023Observed: 1508.9 ft at 4:30AM Jan 26, 2023Observed: 1508.9 ft at 4:45AM Jan 26, 2023Observed: 1508.9 ft at 5:00AM Jan 26, 2023Observed: 1508.9 ft at 5:15AM Jan 26, 2023Observed: 1508.9 ft at 5:30AM Jan 26, 2023Observed: 1508.89 ft at 5:45AM Jan 26, 2023Observed: 1508.89 ft at 6:00AM Jan 26, 2023Observed: 1508.89 ft at 6:15AM Jan 26, 2023Observed: 1508.9 ft at 6:30AM Jan 26, 2023Observed: 1508.89 ft at 6:45AM Jan 26, 2023Observed: 1508.9 ft at 7:00AM Jan 26, 2023Observed: 1508.9 ft at 7:15AM Jan 26, 2023Observed: 1508.9 ft at 7:30AM Jan 26, 2023Observed: 1508.89 ft at 7:45AM Jan 26, 2023Observed: 1508.9 ft at 8:00AM Jan 26, 2023Observed: 1508.9 ft at 8:15AM Jan 26, 2023Observed: 1508.89 ft at 8:30AM Jan 26, 2023Observed: 1508.89 ft at 8:45AM Jan 26, 2023Observed: 1508.9 ft at 9:00AM Jan 26, 2023Observed: 1508.89 ft at 9:15AM Jan 26, 2023Observed: 1508.89 ft at 9:30AM Jan 26, 2023Observed: 1508.89 ft at 9:45AM Jan 26, 2023Observed: 1508.89 ft at 10:00AM Jan 26, 2023Observed: 1508.9 ft at 10:15AM Jan 26, 2023Observed: 1508.9 ft at 10:30AM Jan 26, 2023Observed: 1508.9 ft at 10:45AM Jan 26, 2023Observed: 1508.9 ft at 11:00AM Jan 26, 2023Observed: 1508.9 ft at 11:15AM Jan 26, 2023Observed: 1508.9 ft at 11:30AM Jan 26, 2023Observed: 1508.9 ft at 11:45AM Jan 26, 2023Observed: 1508.9 ft at 12:00PM Jan 26, 2023Observed: 1508.9 ft at 12:15PM Jan 26, 2023Observed: 1508.9 ft at 12:30PM Jan 26, 2023Observed: 1508.89 ft at 12:45PM Jan 26, 2023Observed: 1508.9 ft at 1:00PM Jan 26, 2023Observed: 1508.89 ft at 1:15PM Jan 26, 2023Observed: 1508.89 ft at 1:30PM Jan 26, 2023Observed: 1508.89 ft at 1:45PM Jan 26, 2023Observed: 1508.89 ft at 2:00PM Jan 26, 2023Observed: 1508.89 ft at 2:15PM Jan 26, 2023Observed: 1508.89 ft at 2:30PM Jan 26, 2023Observed: 1508.89 ft at 2:45PM Jan 26, 2023Observed: 1508.88 ft at 3:00PM Jan 26, 2023Observed: 1508.88 ft at 3:15PM Jan 26, 2023Observed: 1508.88 ft at 3:30PM Jan 26, 2023Observed: 1508.88 ft at 3:45PM Jan 26, 2023Observed: 1508.88 ft at 4:00PM Jan 26, 2023Observed: 1508.88 ft at 4:15PM Jan 26, 2023Observed: 1508.88 ft at 4:30PM Jan 26, 2023Observed: 1508.88 ft at 4:45PM Jan 26, 2023Observed: 1508.88 ft at 5:00PM Jan 26, 2023Observed: 1508.88 ft at 5:15PM Jan 26, 2023Observed: 1508.88 ft at 5:30PM Jan 26, 2023Observed: 1508.88 ft at 5:45PM Jan 26, 2023Observed: 1508.88 ft at 6:00PM Jan 26, 2023Observed: 1508.88 ft at 6:15PM Jan 26, 2023Observed: 1508.88 ft at 6:30PM Jan 26, 2023Observed: 1508.88 ft at 6:45PM Jan 26, 2023Observed: 1508.89 ft at 7:00PM Jan 26, 2023Observed: 1508.88 ft at 7:15PM Jan 26, 2023Observed: 1508.88 ft at 7:30PM Jan 26, 2023Observed: 1508.88 ft at 7:45PM Jan 26, 2023Observed: 1508.88 ft at 8:00PM Jan 26, 2023Observed: 1508.89 ft at 8:15PM Jan 26, 2023Observed: 1508.9 ft at 8:30PM Jan 26, 2023Observed: 1508.9 ft at 8:45PM Jan 26, 2023Observed: 1508.9 ft at 9:00PM Jan 26, 2023Observed: 1508.88 ft at 9:15PM Jan 26, 2023Observed: 1508.88 ft at 9:30PM Jan 26, 2023Observed: 1508.88 ft at 9:45PM Jan 26, 2023Observed: 1508.87 ft at 10:00PM Jan 26, 2023Observed: 1508.87 ft at 10:15PM Jan 26, 2023Observed: 1508.87 ft at 10:30PM Jan 26, 2023Observed: 1508.89 ft at 10:45PM Jan 26, 2023Observed: 1508.92 ft at 11:15PM Jan 26, 2023Observed: 1508.91 ft at 11:30PM Jan 26, 2023Observed: 1508.9 ft at 11:45PM Jan 26, 2023Observed: 1508.89 ft at 12:00AM Jan 27, 2023Observed: 1508.9 ft at 12:15AM Jan 27, 2023Observed: 1508.9 ft at 12:30AM Jan 27, 2023Observed: 1508.89 ft at 12:45AM Jan 27, 2023Observed: 1508.89 ft at 1:00AM Jan 27, 2023Observed: 1508.9 ft at 1:15AM Jan 27, 2023Observed: 1508.93 ft at 1:30AM Jan 27, 2023Observed: 1508.93 ft at 1:45AM Jan 27, 2023Observed: 1508.94 ft at 2:00AM Jan 27, 2023Observed: 1508.92 ft at 2:15AM Jan 27, 2023Observed: 1508.91 ft at 2:30AM Jan 27, 2023Observed: 1508.9 ft at 2:45AM Jan 27, 2023Observed: 1508.9 ft at 3:00AM Jan 27, 2023Observed: 1508.9 ft at 3:15AM Jan 27, 2023Observed: 1508.91 ft at 3:30AM Jan 27, 2023Observed: 1508.91 ft at 3:45AM Jan 27, 2023Observed: 1508.92 ft at 4:00AM Jan 27, 2023Observed: 1508.92 ft at 4:15AM Jan 27, 2023Observed: 1508.92 ft at 4:30AM Jan 27, 2023Observed: 1508.93 ft at 4:45AM Jan 27, 2023Observed: 1508.92 ft at 5:00AM Jan 27, 2023Observed: 1508.92 ft at 5:15AM Jan 27, 2023Observed: 1508.92 ft at 5:30AM Jan 27, 2023Observed: 1508.92 ft at 5:45AM Jan 27, 2023Observed: 1508.91 ft at 6:00AM Jan 27, 2023Observed: 1508.91 ft at 6:15AM Jan 27, 2023Observed: 1508.9 ft at 6:30AM Jan 27, 2023Observed: 1508.9 ft at 6:45AM Jan 27, 2023Observed: 1508.89 ft at 7:00AM Jan 27, 2023Observed: 1508.89 ft at 7:15AM Jan 27, 2023Observed: 1508.89 ft at 7:30AM Jan 27, 2023Observed: 1508.88 ft at 7:45AM Jan 27, 2023Observed: 1508.88 ft at 8:00AM Jan 27, 2023Observed: 1508.89 ft at 8:15AM Jan 27, 2023Observed: 1508.88 ft at 8:30AM Jan 27, 2023Observed: 1508.88 ft at 8:45AM Jan 27, 2023Observed: 1508.88 ft at 9:00AM Jan 27, 2023Observed: 1508.88 ft at 9:15AM Jan 27, 2023Observed: 1508.87 ft at 9:30AM Jan 27, 2023Observed: 1508.88 ft at 9:45AM Jan 27, 2023Observed: 1508.87 ft at 10:00AM Jan 27, 2023Observed: 1508.87 ft at 10:15AM Jan 27, 2023Observed: 1508.87 ft at 10:30AM Jan 27, 2023Observed: 1508.87 ft at 10:45AM Jan 27, 2023Observed: 1508.88 ft at 11:00AM Jan 27, 2023Observed: 1508.88 ft at 11:15AM Jan 27, 2023Observed: 1508.89 ft at 11:30AM Jan 27, 2023Observed: 1508.88 ft at 11:45AM Jan 27, 2023Observed: 1508.89 ft at 12:00PM Jan 27, 2023Observed: 1508.89 ft at 12:15PM Jan 27, 2023Observed: 1508.9 ft at 12:30PM Jan 27, 2023Observed: 1508.9 ft at 12:45PM Jan 27, 2023Observed: 1508.9 ft at 1:00PM Jan 27, 2023Observed: 1508.91 ft at 1:15PM Jan 27, 2023Observed: 1508.91 ft at 1:30PM Jan 27, 2023Observed: 1508.91 ft at 1:45PM Jan 27, 2023Observed: 1508.91 ft at 2:00PM Jan 27, 2023Observed: 1508.9 ft at 2:15PM Jan 27, 2023Observed: 1508.91 ft at 2:30PM Jan 27, 2023Observed: 1508.92 ft at 2:45PM Jan 27, 2023Observed: 1508.92 ft at 3:00PM Jan 27, 2023Observed: 1508.92 ft at 3:15PM Jan 27, 2023Observed: 1508.93 ft at 3:30PM Jan 27, 2023Observed: 1508.94 ft at 3:45PM Jan 27, 2023Observed: 1508.94 ft at 4:00PM Jan 27, 2023Observed: 1508.93 ft at 4:15PM Jan 27, 2023Observed: 1508.94 ft at 4:30PM Jan 27, 2023Observed: 1508.94 ft at 4:45PM Jan 27, 2023Observed: 1508.94 ft at 5:00PM Jan 27, 2023Observed: 1508.95 ft at 5:15PM Jan 27, 2023Observed: 1508.95 ft at 5:30PM Jan 27, 2023Observed: 1508.96 ft at 5:45PM Jan 27, 2023Observed: 1508.97 ft at 6:00PM Jan 27, 2023Observed: 1508.98 ft at 6:15PM Jan 27, 2023Observed: 1508.99 ft at 6:30PM Jan 27, 2023Observed: 1509 ft at 6:45PM Jan 27, 2023Observed: 1509 ft at 7:00PM Jan 27, 2023Observed: 1509.01 ft at 7:15PM Jan 27, 2023Observed: 1509.01 ft at 7:30PM Jan 27, 2023Observed: 1509.01 ft at 7:45PM Jan 27, 2023Observed: 1509.01 ft at 8:00PM Jan 27, 2023Observed: 1509.01 ft at 8:15PM Jan 27, 2023Observed: 1509.02 ft at 8:30PM Jan 27, 2023Observed: 1509.02 ft at 8:45PM Jan 27, 2023Observed: 1509.02 ft at 9:00PM Jan 27, 2023Observed: 1509.01 ft at 9:15PM Jan 27, 2023Observed: 1509.01 ft at 9:30PM Jan 27, 2023Observed: 1509.02 ft at 9:45PM Jan 27, 2023Observed: 1509.01 ft at 10:00PM Jan 27, 2023Observed: 1509 ft at 10:15PM Jan 27, 2023Observed: 1508.99 ft at 10:30PM Jan 27, 2023Observed: 1508.99 ft at 10:45PM Jan 27, 2023Observed: 1508.99 ft at 11:00PM Jan 27, 2023Observed: 1508.98 ft at 11:15PM Jan 27, 2023Observed: 1508.98 ft at 11:30PM Jan 27, 2023Observed: 1508.98 ft at 11:45PM Jan 27, 2023Observed: 1508.98 ft at 12:00AM Jan 28, 2023Observed: 1508.97 ft at 12:15AM Jan 28, 2023Observed: 1508.97 ft at 12:30AM Jan 28, 2023Observed: 1508.97 ft at 12:45AM Jan 28, 2023Observed: 1508.96 ft at 1:00AM Jan 28, 2023Observed: 1508.96 ft at 1:15AM Jan 28, 2023Observed: 1508.95 ft at 1:30AM Jan 28, 2023Observed: 1508.95 ft at 1:45AM Jan 28, 2023Observed: 1508.94 ft at 2:00AM Jan 28, 2023Observed: 1508.94 ft at 2:15AM Jan 28, 2023Observed: 1508.94 ft at 2:30AM Jan 28, 2023Observed: 1508.93 ft at 2:45AM Jan 28, 2023Observed: 1508.94 ft at 3:00AM Jan 28, 2023Observed: 1508.94 ft at 3:15AM Jan 28, 2023Observed: 1508.94 ft at 3:30AM Jan 28, 2023Observed: 1508.95 ft at 3:45AM Jan 28, 2023Observed: 1508.95 ft at 4:00AM Jan 28, 2023Observed: 1508.95 ft at 4:15AM Jan 28, 2023Observed: 1508.95 ft at 4:30AM Jan 28, 2023Observed: 1508.95 ft at 4:45AM Jan 28, 2023Observed: 1508.93 ft at 5:00AM Jan 28, 2023Observed: 1508.94 ft at 5:15AM Jan 28, 2023Observed: 1508.95 ft at 5:30AM Jan 28, 2023Observed: 1508.93 ft at 5:45AM Jan 28, 2023Observed: 1508.91 ft at 6:00AM Jan 28, 2023Observed: 1508.93 ft at 6:15AM Jan 28, 2023Observed: 1508.94 ft at 6:30AM Jan 28, 2023Observed: 1508.94 ft at 6:45AM Jan 28, 2023Observed: 1508.95 ft at 7:00AM Jan 28, 2023Observed: 1508.95 ft at 7:15AM Jan 28, 2023Observed: 1508.95 ft at 7:30AM Jan 28, 2023Observed: 1508.95 ft at 7:45AM Jan 28, 2023Observed: 1508.95 ft at 8:00AM Jan 28, 2023Observed: 1508.95 ft at 8:15AM Jan 28, 2023Observed: 1508.96 ft at 8:30AM Jan 28, 2023Observed: 1508.96 ft at 8:45AM Jan 28, 2023Observed: 1508.96 ft at 9:00AM Jan 28, 2023Observed: 1508.96 ft at 9:15AM Jan 28, 2023Observed: 1508.97 ft at 9:30AM Jan 28, 2023Observed: 1508.97 ft at 9:45AM Jan 28, 2023Observed: 1508.97 ft at 10:00AM Jan 28, 2023Observed: 1508.97 ft at 10:15AM Jan 28, 2023Observed: 1508.97 ft at 10:30AM Jan 28, 2023Observed: 1508.98 ft at 10:45AM Jan 28, 2023Observed: 1508.98 ft at 11:00AM Jan 28, 2023Observed: 1508.98 ft at 11:15AM Jan 28, 2023Observed: 1508.98 ft at 11:30AM Jan 28, 2023Observed: 1508.98 ft at 11:45AM Jan 28, 2023Observed: 1508.98 ft at 12:00PM Jan 28, 2023Observed: 1508.98 ft at 12:15PM Jan 28, 2023Observed: 1508.99 ft at 12:30PM Jan 28, 2023Observed: 1508.99 ft at 12:45PM Jan 28, 2023Observed: 1508.99 ft at 1:00PM Jan 28, 2023Observed: 1508.99 ft at 1:15PM Jan 28, 2023Observed: 1508.99 ft at 1:30PM Jan 28, 2023Observed: 1508.98 ft at 1:45PM Jan 28, 2023Observed: 1508.98 ft at 2:00PM Jan 28, 2023Observed: 1508.98 ft at 2:15PM Jan 28, 2023Observed: 1508.99 ft at 2:30PM Jan 28, 2023Observed: 1508.98 ft at 2:45PM Jan 28, 2023Observed: 1508.98 ft at 3:00PM Jan 28, 2023Observed: 1508.99 ft at 3:15PM Jan 28, 2023Observed: 1508.98 ft at 3:30PM Jan 28, 2023Observed: 1508.98 ft at 3:45PM Jan 28, 2023Observed: 1508.98 ft at 4:00PM Jan 28, 2023Observed: 1508.99 ft at 4:15PM Jan 28, 2023Observed: 1508.99 ft at 4:30PM Jan 28, 2023Observed: 1508.99 ft at 4:45PM Jan 28, 2023Observed: 1508.99 ft at 5:00PM Jan 28, 2023Observed: 1508.99 ft at 5:15PM Jan 28, 2023Observed: 1508.99 ft at 5:30PM Jan 28, 2023Observed: 1508.99 ft at 5:45PM Jan 28, 2023Observed: 1508.99 ft at 6:00PM Jan 28, 2023Observed: 1508.99 ft at 6:15PM Jan 28, 2023Observed: 1508.99 ft at 6:30PM Jan 28, 2023Observed: 1508.99 ft at 6:45PM Jan 28, 2023Observed: 1508.99 ft at 7:00PM Jan 28, 2023Observed: 1508.99 ft at 7:15PM Jan 28, 2023Observed: 1508.99 ft at 7:30PM Jan 28, 2023Observed: 1508.99 ft at 7:45PM Jan 28, 2023Observed: 1509 ft at 8:00PM Jan 28, 2023Observed: 1509 ft at 8:15PM Jan 28, 2023Observed: 1509 ft at 8:30PM Jan 28, 2023Observed: 1509 ft at 8:45PM Jan 28, 2023Observed: 1509 ft at 9:00PM Jan 28, 2023Observed: 1509 ft at 9:15PM Jan 28, 2023Observed: 1509 ft at 9:30PM Jan 28, 2023Observed: 1509 ft at 9:45PM Jan 28, 2023Observed: 1509 ft at 10:00PM Jan 28, 2023Observed: 1509 ft at 10:15PM Jan 28, 2023Observed: 1509 ft at 10:30PM Jan 28, 2023Observed: 1509 ft at 10:45PM Jan 28, 2023Observed: 1509 ft at 11:00PM Jan 28, 2023Observed: 1509 ft at 11:15PM Jan 28, 2023Observed: 1509 ft at 11:30PM Jan 28, 2023Observed: 1509 ft at 11:45PM Jan 28, 2023Observed: 1509 ft at 12:00AM Jan 29, 2023Observed: 1509 ft at 12:15AM Jan 29, 2023Observed: 1509 ft at 12:30AM Jan 29, 2023Observed: 1509 ft at 12:45AM Jan 29, 2023Observed: 1509 ft at 1:00AM Jan 29, 2023Observed: 1509 ft at 1:15AM Jan 29, 2023Observed: 1509 ft at 1:30AM Jan 29, 2023Observed: 1509.01 ft at 1:45AM Jan 29, 2023Observed: 1509.01 ft at 2:00AM Jan 29, 2023Observed: 1509.01 ft at 2:15AM Jan 29, 2023Observed: 1509 ft at 2:30AM Jan 29, 2023Observed: 1509 ft at 2:45AM Jan 29, 2023Observed: 1509 ft at 3:00AM Jan 29, 2023Observed: 1509 ft at 3:15AM Jan 29, 2023Observed: 1509 ft at 3:30AM Jan 29, 2023Observed: 1509 ft at 3:45AM Jan 29, 2023Observed: 1509 ft at 4:00AM Jan 29, 2023Observed: 1509 ft at 4:15AM Jan 29, 2023Observed: 1509 ft at 4:30AM Jan 29, 2023Observed: 1509 ft at 4:45AM Jan 29, 2023Observed: 1509 ft at 5:00AM Jan 29, 2023Observed: 1509 ft at 5:15AM Jan 29, 2023Observed: 1509 ft at 5:30AM Jan 29, 2023Observed: 1509 ft at 5:45AM Jan 29, 2023Observed: 1508.99 ft at 6:00AM Jan 29, 2023Observed: 1508.99 ft at 6:15AM Jan 29, 2023Observed: 1508.98 ft at 6:30AM Jan 29, 2023Observed: 1508.98 ft at 6:45AM Jan 29, 2023Observed: 1508.98 ft at 7:00AM Jan 29, 2023Observed: 1508.98 ft at 7:15AM Jan 29, 2023Observed: 1508.98 ft at 7:30AM Jan 29, 2023Observed: 1508.98 ft at 7:45AM Jan 29, 2023Observed: 1508.98 ft at 8:00AM Jan 29, 2023Observed: 1508.98 ft at 8:15AM Jan 29, 2023Observed: 1508.98 ft at 8:30AM Jan 29, 2023Observed: 1508.99 ft at 8:45AM Jan 29, 2023Observed: 1508.99 ft at 9:00AM Jan 29, 2023Observed: 1508.99 ft at 9:15AM Jan 29, 2023Observed: 1508.99 ft at 9:30AM Jan 29, 2023Observed: 1508.99 ft at 9:45AM Jan 29, 2023Observed: 1508.99 ft at 10:00AM Jan 29, 2023Observed: 1508.99 ft at 10:15AM Jan 29, 2023Observed: 1508.99 ft at 10:30AM Jan 29, 2023Observed: 1508.99 ft at 10:45AM Jan 29, 2023Observed: 1508.99 ft at 11:00AM Jan 29, 2023Observed: 1508.99 ft at 11:15AM Jan 29, 2023Observed: 1509 ft at 11:30AM Jan 29, 2023Observed: 1509 ft at 11:45AM Jan 29, 2023Observed: 1509.01 ft at 12:00PM Jan 29, 2023Observed: 1509.01 ft at 12:15PM Jan 29, 2023Observed: 1509 ft at 12:30PM Jan 29, 2023Observed: 1509 ft at 12:45PM Jan 29, 2023Observed: 1509 ft at 1:00PM Jan 29, 2023Observed: 1509 ft at 1:15PM Jan 29, 2023Observed: 1509 ft at 1:30PM Jan 29, 2023Observed: 1509 ft at 1:45PM Jan 29, 2023Observed: 1509 ft at 2:00PM Jan 29, 2023Observed: 1509 ft at 2:15PM Jan 29, 2023Observed: 1508.99 ft at 2:30PM Jan 29, 2023Observed: 1508.99 ft at 2:45PM Jan 29, 2023Observed: 1508.98 ft at 3:00PM Jan 29, 2023Observed: 1508.98 ft at 3:15PM Jan 29, 2023Observed: 1508.98 ft at 3:30PM Jan 29, 2023Observed: 1508.99 ft at 3:45PM Jan 29, 2023Observed: 1508.98 ft at 4:00PM Jan 29, 2023Observed: 1508.98 ft at 4:15PM Jan 29, 2023Observed: 1508.98 ft at 4:30PM Jan 29, 2023Observed: 1508.98 ft at 4:45PM Jan 29, 2023Observed: 1508.98 ft at 5:00PM Jan 29, 2023Observed: 1508.98 ft at 5:15PM Jan 29, 2023Observed: 1508.98 ft at 5:30PM Jan 29, 2023Observed: 1508.98 ft at 5:45PM Jan 29, 2023Observed: 1508.99 ft at 6:00PM Jan 29, 2023Observed: 1508.98 ft at 6:15PM Jan 29, 2023Observed: 1508.98 ft at 6:30PM Jan 29, 2023Observed: 1508.99 ft at 6:45PM Jan 29, 2023Observed: 1508.98 ft at 7:00PM Jan 29, 2023Observed: 1508.99 ft at 7:15PM Jan 29, 2023Observed: 1508.99 ft at 7:30PM Jan 29, 2023Observed: 1508.99 ft at 7:45PM Jan 29, 2023Observed: 1508.98 ft at 8:00PM Jan 29, 2023Observed: 1508.98 ft at 8:15PM Jan 29, 2023Observed: 1508.99 ft at 8:30PM Jan 29, 2023Observed: 1508.98 ft at 8:45PM Jan 29, 2023Observed: 1508.99 ft at 9:00PM Jan 29, 2023Observed: 1508.99 ft at 9:15PM Jan 29, 2023Observed: 1508.99 ft at 9:30PM Jan 29, 2023Observed: 1508.98 ft at 9:45PM Jan 29, 2023Observed: 1508.99 ft at 10:00PM Jan 29, 2023Observed: 1508.98 ft at 10:15PM Jan 29, 2023Observed: 1508.98 ft at 10:30PM Jan 29, 2023Observed: 1508.98 ft at 10:45PM Jan 29, 2023Observed: 1508.98 ft at 11:00PM Jan 29, 2023Observed: 1508.98 ft at 11:15PM Jan 29, 2023Observed: 1508.98 ft at 11:30PM Jan 29, 2023Observed: 1508.98 ft at 11:45PM Jan 29, 2023Observed: 1508.98 ft at 12:00AM Jan 30, 2023Observed: 1508.98 ft at 12:15AM Jan 30, 2023Observed: 1508.98 ft at 12:30AM Jan 30, 2023Observed: 1508.98 ft at 12:45AM Jan 30, 2023Observed: 1508.98 ft at 1:00AM Jan 30, 2023Observed: 1508.98 ft at 1:15AM Jan 30, 2023Observed: 1508.97 ft at 1:30AM Jan 30, 2023Observed: 1508.98 ft at 1:45AM Jan 30, 2023Observed: 1508.98 ft at 2:00AM Jan 30, 2023Observed: 1508.98 ft at 2:15AM Jan 30, 2023Observed: 1508.98 ft at 2:30AM Jan 30, 2023Observed: 1508.98 ft at 2:45AM Jan 30, 2023Observed: 1508.98 ft at 3:00AM Jan 30, 2023Observed: 1508.98 ft at 3:15AM Jan 30, 2023Observed: 1508.98 ft at 3:30AM Jan 30, 2023Observed: 1508.98 ft at 3:45AM Jan 30, 2023Observed: 1508.98 ft at 4:00AM Jan 30, 2023Observed: 1508.98 ft at 4:15AM Jan 30, 2023Observed: 1508.98 ft at 4:30AM Jan 30, 2023Observed: 1508.98 ft at 4:45AM Jan 30, 2023Observed: 1508.98 ft at 5:00AM Jan 30, 2023Observed: 1508.97 ft at 5:15AM Jan 30, 2023Observed: 1508.97 ft at 5:30AM Jan 30, 2023Observed: 1508.97 ft at 5:45AM Jan 30, 2023Observed: 1508.97 ft at 6:00AM Jan 30, 2023Observed: 1508.96 ft at 6:15AM Jan 30, 2023Observed: 1508.96 ft at 6:30AM Jan 30, 2023Observed: 1508.95 ft at 6:45AM Jan 30, 2023Observed: 1508.95 ft at 7:00AM Jan 30, 2023Observed: 1508.95 ft at 7:15AM Jan 30, 2023Observed: 1508.95 ft at 7:30AM Jan 30, 2023Observed: 1508.95 ft at 7:45AM Jan 30, 2023Observed: 1508.94 ft at 8:00AM Jan 30, 2023Observed: 1508.95 ft at 8:15AM Jan 30, 2023Observed: 1508.96 ft at 8:30AM Jan 30, 2023Observed: 1508.97 ft at 8:45AM Jan 30, 2023Observed: 1508.98 ft at 9:00AM Jan 30, 2023Observed: 1508.98 ft at 9:15AM Jan 30, 2023Observed: 1508.99 ft at 9:30AM Jan 30, 2023Observed: 1508.98 ft at 9:45AM Jan 30, 2023Observed: 1508.98 ft at 10:00AM Jan 30, 2023Observed: 1508.98 ft at 10:15AM Jan 30, 2023Observed: 1508.98 ft at 10:30AM Jan 30, 2023Observed: 1508.99 ft at 10:45AM Jan 30, 2023Observed: 1508.99 ft at 11:00AM Jan 30, 2023Observed: 1508.99 ft at 11:15AM Jan 30, 2023Observed: 1508.99 ft at 11:30AM Jan 30, 2023Observed: 1508.99 ft at 11:45AM Jan 30, 2023Observed: 1508.99 ft at 12:00PM Jan 30, 2023Observed: 1509 ft at 12:15PM Jan 30, 2023Observed: 1509 ft at 12:30PM Jan 30, 2023Observed: 1509 ft at 12:45PM Jan 30, 2023Observed: 1509 ft at 1:00PM Jan 30, 2023Observed: 1509 ft at 1:15PM Jan 30, 2023Observed: 1509.01 ft at 1:30PM Jan 30, 2023Observed: 1509.01 ft at 1:45PM Jan 30, 2023Observed: 1509 ft at 2:00PM Jan 30, 2023Observed: 1509 ft at 2:15PM Jan 30, 2023Observed: 1509 ft at 2:30PM Jan 30, 2023Observed: 1509 ft at 2:45PM Jan 30, 2023Observed: 1509 ft at 3:00PM Jan 30, 2023Observed: 1509 ft at 3:15PM Jan 30, 2023Observed: 1508.99 ft at 3:30PM Jan 30, 2023Observed: 1508.99 ft at 3:45PM Jan 30, 2023Observed: 1508.99 ft at 4:00PM Jan 30, 2023Observed: 1508.99 ft at 4:15PM Jan 30, 2023Observed: 1508.99 ft at 4:30PM Jan 30, 2023Observed: 1508.99 ft at 4:45PM Jan 30, 2023Observed: 1508.99 ft at 5:00PM Jan 30, 2023Observed: 1508.98 ft at 5:15PM Jan 30, 2023Observed: 1508.98 ft at 5:30PM Jan 30, 2023Observed: 1508.98 ft at 5:45PM Jan 30, 2023Observed: 1508.98 ft at 6:00PM Jan 30, 2023Observed: 1508.98 ft at 6:15PM Jan 30, 2023Observed: 1508.98 ft at 6:30PM Jan 30, 2023Observed: 1508.98 ft at 6:45PM Jan 30, 2023Observed: 1508.97 ft at 7:00PM Jan 30, 2023Observed: 1508.98 ft at 7:15PM Jan 30, 2023Observed: 1508.97 ft at 7:30PM Jan 30, 2023Observed: 1508.98 ft at 7:45PM Jan 30, 2023Observed: 1508.98 ft at 8:00PM Jan 30, 2023Observed: 1508.97 ft at 8:15PM Jan 30, 2023Observed: 1508.97 ft at 8:30PM Jan 30, 2023Observed: 1508.97 ft at 8:45PM Jan 30, 2023Observed: 1508.97 ft at 9:00PM Jan 30, 2023Observed: 1508.97 ft at 9:15PM Jan 30, 2023Observed: 1508.97 ft at 9:30PM Jan 30, 2023Observed: 1508.96 ft at 9:45PM Jan 30, 2023Observed: 1508.97 ft at 10:00PM Jan 30, 2023Observed: 1508.97 ft at 10:15PM Jan 30, 2023Observed: 1508.97 ft at 10:30PM Jan 30, 2023Observed: 1508.97 ft at 10:45PM Jan 30, 2023Observed: 1508.97 ft at 11:00PM Jan 30, 2023Observed: 1508.98 ft at 11:15PM Jan 30, 2023Observed: 1508.98 ft at 11:30PM Jan 30, 2023Observed: 1508.98 ft at 11:45PM Jan 30, 2023Observed: 1508.97 ft at 12:00AM Jan 31, 2023Observed: 1508.97 ft at 12:15AM Jan 31, 2023Observed: 1508.97 ft at 12:30AM Jan 31, 2023Observed: 1508.97 ft at 12:45AM Jan 31, 2023Observed: 1508.97 ft at 1:00AM Jan 31, 2023Observed: 1508.97 ft at 1:15AM Jan 31, 2023Observed: 1508.97 ft at 1:30AM Jan 31, 2023Observed: 1508.97 ft at 1:45AM Jan 31, 2023Observed: 1508.97 ft at 2:00AM Jan 31, 2023Observed: 1508.97 ft at 2:15AM Jan 31, 2023Observed: 1508.96 ft at 2:30AM Jan 31, 2023Observed: 1508.96 ft at 2:45AM Jan 31, 2023Observed: 1508.96 ft at 3:00AM Jan 31, 2023Observed: 1508.97 ft at 3:15AM Jan 31, 2023Observed: 1508.96 ft at 3:30AM Jan 31, 2023Observed: 1508.96 ft at 3:45AM Jan 31, 2023Observed: 1508.96 ft at 4:00AM Jan 31, 2023Observed: 1508.96 ft at 4:15AM Jan 31, 2023Observed: 1508.96 ft at 4:30AM Jan 31, 2023Observed: 1508.96 ft at 4:45AM Jan 31, 2023Observed: 1508.96 ft at 5:00AM Jan 31, 2023Observed: 1508.96 ft at 5:15AM Jan 31, 2023Observed: 1508.96 ft at 5:30AM Jan 31, 2023Observed: 1508.96 ft at 5:45AM Jan 31, 2023Observed: 1508.96 ft at 6:00AM Jan 31, 2023Observed: 1508.96 ft at 6:15AM Jan 31, 2023Observed: 1508.96 ft at 6:30AM Jan 31, 2023Observed: 1508.96 ft at 6:45AM Jan 31, 2023Observed: 1508.96 ft at 7:00AM Jan 31, 2023Observed: 1508.96 ft at 7:15AM Jan 31, 2023Observed: 1508.96 ft at 7:30AM Jan 31, 2023Observed: 1508.96 ft at 7:45AM Jan 31, 2023Observed: 1508.96 ft at 8:00AM Jan 31, 2023Observed: 1508.96 ft at 8:15AM Jan 31, 2023Observed: 1508.98 ft at 8:30AM Jan 31, 2023Observed: 1508.99 ft at 8:45AM Jan 31, 2023Observed: 1508.99 ft at 9:00AM Jan 31, 2023Observed: 1508.99 ft at 9:15AM Jan 31, 2023Observed: 1508.99 ft at 9:30AM Jan 31, 2023Observed: 1508.99 ft at 9:45AM Jan 31, 2023Observed: 1508.99 ft at 10:00AM Jan 31, 2023Observed: 1509 ft at 10:15AM Jan 31, 2023Observed: 1508.99 ft at 10:30AM Jan 31, 2023Observed: 1509 ft at 10:45AM Jan 31, 2023Observed: 1509 ft at 11:00AM Jan 31, 2023Observed: 1509.01 ft at 11:15AM Jan 31, 2023Observed: 1509.01 ft at 11:30AM Jan 31, 2023Observed: 1509.02 ft at 11:45AM Jan 31, 2023Observed: 1509.02 ft at 12:00PM Jan 31, 2023Observed: 1509.02 ft at 12:15PM Jan 31, 2023Observed: 1509.03 ft at 12:30PM Jan 31, 2023Observed: 1509.03 ft at 12:45PM Jan 31, 2023Observed: 1509.04 ft at 1:00PM Jan 31, 2023Observed: 1509.04 ft at 1:15PM Jan 31, 2023Observed: 1509.05 ft at 1:30PM Jan 31, 2023Observed: 1509.05 ft at 1:45PM Jan 31, 2023Observed: 1509.05 ft at 2:00PM Jan 31, 2023Observed: 1509.05 ft at 2:15PM Jan 31, 2023Observed: 1509.05 ft at 2:30PM Jan 31, 2023Observed: 1509.06 ft at 2:45PM Jan 31, 2023Observed: 1509.06 ft at 3:00PM Jan 31, 2023Observed: 1509.06 ft at 3:15PM Jan 31, 2023Observed: 1509.06 ft at 3:30PM Jan 31, 2023Observed: 1509.05 ft at 3:45PM Jan 31, 2023Observed: 1509.04 ft at 4:00PM Jan 31, 2023Observed: 1509.03 ft at 4:15PM Jan 31, 2023Observed: 1509.03 ft at 4:30PM Jan 31, 2023Observed: 1509.03 ft at 4:45PM Jan 31, 2023Observed: 1509.03 ft at 5:00PM Jan 31, 2023Observed: 1509.02 ft at 5:15PM Jan 31, 2023Observed: 1509.02 ft at 5:30PM Jan 31, 2023Observed: 1509.02 ft at 5:45PM Jan 31, 2023Observed: 1509.02 ft at 6:00PM Jan 31, 2023Observed: 1509.02 ft at 6:15PM Jan 31, 2023Observed: 1509.02 ft at 6:30PM Jan 31, 2023Observed: 1509.02 ft at 6:45PM Jan 31, 2023Observed: 1509.02 ft at 7:00PM Jan 31, 2023Observed: 1509.02 ft at 7:15PM Jan 31, 2023Observed: 1509.02 ft at 7:30PM Jan 31, 2023Observed: 1509.02 ft at 7:45PM Jan 31, 2023Observed: 1509.02 ft at 8:00PM Jan 31, 2023Observed: 1509.02 ft at 8:15PM Jan 31, 2023Observed: 1509.02 ft at 8:30PM Jan 31, 2023Observed: 1509.02 ft at 8:45PM Jan 31, 2023Observed: 1509.02 ft at 9:00PM Jan 31, 2023Observed: 1509.02 ft at 9:15PM Jan 31, 2023Observed: 1509.02 ft at 9:30PM Jan 31, 2023Observed: 1509.02 ft at 9:45PM Jan 31, 2023Observed: 1509.03 ft at 10:00PM Jan 31, 2023Observed: 1509.02 ft at 10:15PM Jan 31, 2023Observed: 1509.02 ft at 10:30PM Jan 31, 2023Observed: 1509.03 ft at 10:45PM Jan 31, 2023Observed: 1509.03 ft at 11:00PM Jan 31, 2023Observed: 1509.02 ft at 11:15PM Jan 31, 2023Observed: 1509.02 ft at 11:30PM Jan 31, 2023Observed: 1509.02 ft at 11:45PM Jan 31, 2023Observed: 1509.02 ft at 12:00AM Feb 01, 2023Observed: 1509.02 ft at 12:15AM Feb 01, 2023Observed: 1509.02 ft at 12:30AM Feb 01, 2023Observed: 1509.02 ft at 12:45AM Feb 01, 2023Observed: 1509.02 ft at 1:00AM Feb 01, 2023Observed: 1509.02 ft at 1:15AM Feb 01, 2023Observed: 1509.02 ft at 1:30AM Feb 01, 2023Observed: 1509.02 ft at 1:45AM Feb 01, 2023Observed: 1509.02 ft at 2:00AM Feb 01, 2023Observed: 1509.02 ft at 2:15AM Feb 01, 2023Observed: 1509.02 ft at 2:30AM Feb 01, 2023Observed: 1509.02 ft at 2:45AM Feb 01, 2023Observed: 1509.01 ft at 3:00AM Feb 01, 2023Observed: 1509.01 ft at 3:15AM Feb 01, 2023Observed: 1509.01 ft at 3:30AM Feb 01, 2023Observed: 1509.01 ft at 3:45AM Feb 01, 2023Observed: 1509.01 ft at 4:00AM Feb 01, 2023Observed: 1509.01 ft at 4:15AM Feb 01, 2023Observed: 1509.01 ft at 4:30AM Feb 01, 2023Observed: 1509.01 ft at 4:45AM Feb 01, 2023Observed: 1509.01 ft at 5:00AM Feb 01, 2023Observed: 1509.01 ft at 5:15AM Feb 01, 2023Observed: 1509.01 ft at 5:30AM Feb 01, 2023Observed: 1509.01 ft at 5:45AM Feb 01, 2023Observed: 1509.01 ft at 6:00AM Feb 01, 2023Observed: 1509.01 ft at 6:15AM Feb 01, 2023Observed: 1509.01 ft at 6:30AM Feb 01, 2023Observed: 1509.01 ft at 6:45AM Feb 01, 2023Observed: 1509.01 ft at 7:00AM Feb 01, 2023Observed: 1509.01 ft at 7:15AM Feb 01, 2023Observed: 1509.01 ft at 7:30AM Feb 01, 2023Observed: 1509.01 ft at 7:45AM Feb 01, 2023Observed: 1509.01 ft at 8:00AM Feb 01, 2023Observed: 1509.02 ft at 8:15AM Feb 01, 2023Observed: 1509.02 ft at 8:30AM Feb 01, 2023Observed: 1509.03 ft at 8:45AM Feb 01, 2023Observed: 1509.03 ft at 9:00AM Feb 01, 2023Observed: 1509.03 ft at 9:15AM Feb 01, 2023Observed: 1509.02 ft at 9:30AM Feb 01, 2023Observed: 1509.03 ft at 9:45AM Feb 01, 2023Observed: 1509.03 ft at 10:00AM Feb 01, 2023Observed: 1509.04 ft at 10:15AM Feb 01, 2023Observed: 1509.04 ft at 10:30AM Feb 01, 2023Observed: 1509.05 ft at 10:45AM Feb 01, 2023Observed: 1509.05 ft at 11:00AM Feb 01, 2023Observed: 1509.05 ft at 11:15AM Feb 01, 2023Observed: 1509.05 ft at 11:30AM Feb 01, 2023Observed: 1509.06 ft at 11:45AM Feb 01, 2023Observed: 1509.06 ft at 12:00PM Feb 01, 2023Observed: 1509.07 ft at 12:15PM Feb 01, 2023Observed: 1509.07 ft at 12:30PM Feb 01, 2023Observed: 1509.08 ft at 12:45PM Feb 01, 2023Observed: 1509.07 ft at 1:00PM Feb 01, 2023Observed: 1509.07 ft at 1:15PM Feb 01, 2023Observed: 1509.07 ft at 1:30PM Feb 01, 2023Observed: 1509.08 ft at 1:45PM Feb 01, 2023Observed: 1509.08 ft at 2:00PM Feb 01, 2023Observed: 1509.08 ft at 2:15PM Feb 01, 2023Observed: 1509.08 ft at 2:30PM Feb 01, 2023Highest Observation: 1509.09 ft at 2:45PM Feb 01, 2023Observed: 1509.08 ft at 3:00PM Feb 01, 2023Observed: 1509.08 ft at 3:15PM Feb 01, 2023Observed: 1509.07 ft at 3:30PM Feb 01, 2023Observed: 1509.07 ft at 3:45PM Feb 01, 2023Observed: 1509.06 ft at 4:00PM Feb 01, 2023Observed: 1509.05 ft at 4:15PM Feb 01, 2023Observed: 1509.05 ft at 4:30PM Feb 01, 2023Observed: 1509.04 ft at 4:45PM Feb 01, 2023Observed: 1509.04 ft at 5:00PM Feb 01, 2023Observed: 1509.04 ft at 5:15PM Feb 01, 2023Observed: 1509.04 ft at 5:30PM Feb 01, 2023Observed: 1509.04 ft at 5:45PM Feb 01, 2023Observed: 1509.03 ft at 6:00PM Feb 01, 2023Observed: 1509.04 ft at 6:15PM Feb 01, 2023Observed: 1509.03 ft at 6:30PM Feb 01, 2023Observed: 1509.04 ft at 6:45PM Feb 01, 2023Observed: 1509.04 ft at 7:00PM Feb 01, 2023Observed: 1509.04 ft at 7:15PM Feb 01, 2023Observed: 1509.04 ft at 7:30PM Feb 01, 2023Observed: 1509.04 ft at 7:45PM Feb 01, 2023Observed: 1509.04 ft at 8:00PM Feb 01, 2023Observed: 1509.04 ft at 8:15PM Feb 01, 2023Observed: 1509.04 ft at 8:30PM Feb 01, 2023Observed: 1509.04 ft at 8:45PM Feb 01, 2023Observed: 1509.04 ft at 9:00PM Feb 01, 2023Observed: 1509.04 ft at 9:15PM Feb 01, 2023Observed: 1509.04 ft at 9:30PM Feb 01, 2023Observed: 1509.04 ft at 9:45PM Feb 01, 2023Observed: 1509.04 ft at 10:00PM Feb 01, 2023Observed: 1509.04 ft at 10:15PM Feb 01, 2023Observed: 1509.04 ft at 10:30PM Feb 01, 2023Observed: 1509.04 ft at 10:45PM Feb 01, 2023Observed: 1509.04 ft at 11:00PM Feb 01, 2023Observed: 1509.04 ft at 11:15PM Feb 01, 2023Observed: 1509.04 ft at 11:30PM Feb 01, 2023Observed: 1509.04 ft at 11:45PM Feb 01, 2023Observed: 1509.04 ft at 12:00AM Feb 02, 2023Observed: 1509.04 ft at 12:15AM Feb 02, 2023Observed: 1509.04 ft at 12:30AM Feb 02, 2023Observed: 1509.04 ft at 12:45AM Feb 02, 2023Observed: 1509.04 ft at 1:00AM Feb 02, 2023Observed: 1509.04 ft at 1:15AM Feb 02, 2023Observed: 1509.04 ft at 1:30AM Feb 02, 2023Observed: 1509.04 ft at 1:45AM Feb 02, 2023Observed: 1509.04 ft at 2:00AM Feb 02, 2023Observed: 1509.04 ft at 2:15AM Feb 02, 2023Observed: 1509.04 ft at 2:30AM Feb 02, 2023Observed: 1509.04 ft at 2:45AM Feb 02, 2023Observed: 1509.04 ft at 3:00AM Feb 02, 2023Observed: 1509.04 ft at 3:15AM Feb 02, 2023Observed: 1509.04 ft at 3:30AM Feb 02, 2023Observed: 1509.04 ft at 3:45AM Feb 02, 2023Observed: 1509.04 ft at 4:00AM Feb 02, 2023Observed: 1509.04 ft at 4:15AM Feb 02, 2023Observed: 1509.04 ft at 4:30AM Feb 02, 2023Observed: 1509.04 ft at 4:45AM Feb 02, 2023Observed: 1509.04 ft at 5:00AM Feb 02, 2023Observed: 1509.04 ft at 5:15AM Feb 02, 2023Observed: 1509.04 ft at 5:30AM Feb 02, 2023Observed: 1509.04 ft at 5:45AM Feb 02, 2023Observed: 1509.04 ft at 6:00AM Feb 02, 2023Observed: 1509.05 ft at 6:15AM Feb 02, 2023Observed: 1509.05 ft at 6:30AM Feb 02, 2023Observed: 1509.05 ft at 6:45AM Feb 02, 2023Observed: 1509.05 ft at 7:00AM Feb 02, 2023Observed: 1509.05 ft at 7:15AM Feb 02, 2023Observed: 1509.05 ft at 7:30AM Feb 02, 2023Observed: 1509.05 ft at 7:45AM Feb 02, 2023Observed: 1509.05 ft at 8:00AM Feb 02, 2023Observed: 1509.05 ft at 8:15AM Feb 02, 2023Observed: 1509.05 ft at 8:30AM Feb 02, 2023Observed: 1509.05 ft at 8:45AM Feb 02, 2023Observed: 1509.05 ft at 9:00AM Feb 02, 2023Observed: 1509.05 ft at 9:15AM Feb 02, 2023Observed: 1509.04 ft at 9:30AM Feb 02, 2023Observed: 1509.04 ft at 9:45AM Feb 02, 2023Observed: 1509.04 ft at 10:00AM Feb 02, 2023Observed: 1509.04 ft at 10:15AM Feb 02, 2023Observed: 1509.04 ft at 10:30AM Feb 02, 2023Observed: 1509.05 ft at 10:45AM Feb 02, 2023Observed: 1509.04 ft at 11:00AM Feb 02, 2023Observed: 1509.04 ft at 11:15AM Feb 02, 2023Observed: 1509.05 ft at 11:30AM Feb 02, 2023Observed: 1509.05 ft at 11:45AM Feb 02, 2023Observed: 1509.05 ft at 12:00PM Feb 02, 2023Observed: 1509.05 ft at 12:15PM Feb 02, 2023Observed: 1509.05 ft at 12:30PM Feb 02, 2023Observed: 1509.05 ft at 12:45PM Feb 02, 2023Observed: 1509.05 ft at 1:00PM Feb 02, 2023Observed: 1509.05 ft at 1:15PM Feb 02, 2023Observed: 1509.06 ft at 1:30PM Feb 02, 2023Observed: 1509.06 ft at 1:45PM Feb 02, 2023Observed: 1509.05 ft at 2:00PM Feb 02, 2023Observed: 1509.06 ft at 2:15PM Feb 02, 2023Observed: 1509.06 ft at 2:30PM Feb 02, 2023Observed: 1509.05 ft at 2:45PM Feb 02, 2023Observed: 1509.05 ft at 3:00PM Feb 02, 2023Observed: 1509.06 ft at 3:15PM Feb 02, 2023Observed: 1509.05 ft at 3:30PM Feb 02, 2023Observed: 1509.06 ft at 3:45PM Feb 02, 2023Observed: 1509.05 ft at 4:00PM Feb 02, 2023Observed: 1509.04 ft at 4:15PM Feb 02, 2023Observed: 1509.04 ft at 4:30PM Feb 02, 2023Observed: 1509.04 ft at 4:45PM Feb 02, 2023Observed: 1509.03 ft at 5:00PM Feb 02, 2023Observed: 1509.04 ft at 5:15PM Feb 02, 2023Observed: 1509.03 ft at 5:30PM Feb 02, 2023Observed: 1509.03 ft at 5:45PM Feb 02, 2023Observed: 1509.03 ft at 6:00PM Feb 02, 2023Observed: 1509.03 ft at 6:15PM Feb 02, 2023Observed: 1509.03 ft at 6:30PM Feb 02, 2023Observed: 1509.03 ft at 6:45PM Feb 02, 2023Observed: 1509.03 ft at 7:00PM Feb 02, 2023Observed: 1509.03 ft at 7:15PM Feb 02, 2023Observed: 1509.03 ft at 7:30PM Feb 02, 2023Observed: 1509.03 ft at 7:45PM Feb 02, 2023Observed: 1509.03 ft at 8:00PM Feb 02, 2023Observed: 1509.03 ft at 8:15PM Feb 02, 2023Observed: 1509.03 ft at 8:30PM Feb 02, 2023Observed: 1509.03 ft at 8:45PM Feb 02, 2023Observed: 1509.03 ft at 9:00PM Feb 02, 2023Observed: 1509.03 ft at 9:15PM Feb 02, 2023Observed: 1509.03 ft at 9:30PM Feb 02, 2023Observed: 1509.03 ft at 9:45PM Feb 02, 2023Observed: 1509.03 ft at 10:00PM Feb 02, 2023Observed: 1509.03 ft at 10:15PM Feb 02, 2023Observed: 1509.03 ft at 10:30PM Feb 02, 2023Observed: 1509.03 ft at 10:45PM Feb 02, 2023Observed: 1509.03 ft at 11:00PM Feb 02, 2023Observed: 1509.03 ft at 11:15PM Feb 02, 2023Observed: 1509.02 ft at 11:30PM Feb 02, 2023Observed: 1509.02 ft at 11:45PM Feb 02, 2023Observed: 1509.02 ft at 12:00AM Feb 03, 2023Observed: 1509.03 ft at 12:15AM Feb 03, 2023Observed: 1509.03 ft at 12:30AM Feb 03, 2023Observed: 1509.04 ft at 12:45AM Feb 03, 2023Observed: 1509.04 ft at 1:00AM Feb 03, 2023Observed: 1509.04 ft at 1:15AM Feb 03, 2023Observed: 1509.04 ft at 1:30AM Feb 03, 2023Observed: 1509.04 ft at 1:45AM Feb 03, 2023Observed: 1509.04 ft at 2:00AM Feb 03, 2023Observed: 1509.04 ft at 2:15AM Feb 03, 2023Observed: 1509.03 ft at 2:30AM Feb 03, 2023Observed: 1509.04 ft at 2:45AM Feb 03, 2023Observed: 1509.04 ft at 3:00AM Feb 03, 2023Observed: 1509.04 ft at 3:15AM Feb 03, 2023Observed: 1509.04 ft at 3:30AM Feb 03, 2023Observed: 1509.04 ft at 3:45AM Feb 03, 2023Observed: 1509.04 ft at 4:00AM Feb 03, 2023Observed: 1509.04 ft at 4:15AM Feb 03, 2023Observed: 1509.04 ft at 4:30AM Feb 03, 2023Observed: 1509.04 ft at 4:45AM Feb 03, 2023Observed: 1509.04 ft at 5:00AM Feb 03, 2023Observed: 1509.04 ft at 5:15AM Feb 03, 2023Observed: 1509.04 ft at 5:30AM Feb 03, 2023Observed: 1509.04 ft at 5:45AM Feb 03, 2023Observed: 1509.04 ft at 6:00AM Feb 03, 2023Observed: 1509.04 ft at 6:15AM Feb 03, 2023Observed: 1509.04 ft at 6:30AM Feb 03, 2023Observed: 1509.04 ft at 6:45AM Feb 03, 2023Observed: 1509.04 ft at 7:00AM Feb 03, 2023Observed: 1509.04 ft at 7:15AM Feb 03, 2023Observed: 1509.04 ft at 7:30AM Feb 03, 2023Observed: 1509.04 ft at 7:45AM Feb 03, 2023Observed: 1509.04 ft at 8:00AM Feb 03, 2023Observed: 1509.04 ft at 8:15AM Feb 03, 2023Observed: 1509.04 ft at 8:30AM Feb 03, 2023Observed: 1509.04 ft at 8:45AM Feb 03, 2023Observed: 1509.04 ft at 9:00AM Feb 03, 2023Observed: 1509.04 ft at 9:15AM Feb 03, 2023Observed: 1509.04 ft at 9:30AM Feb 03, 2023Observed: 1509.04 ft at 9:45AM Feb 03, 2023Observed: 1509.04 ft at 10:00AM Feb 03, 2023Observed: 1509.04 ft at 10:15AM Feb 03, 2023Observed: 1509.04 ft at 10:30AM Feb 03, 2023Observed: 1509.04 ft at 10:45AM Feb 03, 2023Observed: 1509.04 ft at 11:00AM Feb 03, 2023Observed: 1509.04 ft at 11:15AM Feb 03, 2023Observed: 1509.04 ft at 11:30AM Feb 03, 2023Observed: 1509.04 ft at 11:45AM Feb 03, 2023Observed: 1509.04 ft at 12:00PM Feb 03, 2023Observed: 1509.04 ft at 12:15PM Feb 03, 2023Observed: 1509.05 ft at 12:30PM Feb 03, 2023Observed: 1509.05 ft at 12:45PM Feb 03, 2023Observed: 1509.05 ft at 1:00PM Feb 03, 2023Observed: 1509.05 ft at 1:15PM Feb 03, 2023Observed: 1509.05 ft at 1:30PM Feb 03, 2023Observed: 1509.05 ft at 1:45PM Feb 03, 2023Observed: 1509.05 ft at 2:00PM Feb 03, 2023Observed: 1509.05 ft at 2:15PM Feb 03, 2023Observed: 1509.05 ft at 2:30PM Feb 03, 2023Observed: 1509.05 ft at 2:45PM Feb 03, 2023Observed: 1509.05 ft at 3:00PM Feb 03, 2023Observed: 1509.05 ft at 3:15PM Feb 03, 2023Observed: 1509.05 ft at 3:30PM Feb 03, 2023Observed: 1509.05 ft at 3:45PM Feb 03, 2023Observed: 1509.04 ft at 4:00PM Feb 03, 2023Observed: 1509.04 ft at 4:15PM Feb 03, 2023Observed: 1509.04 ft at 4:30PM Feb 03, 2023Observed: 1509.04 ft at 4:45PM Feb 03, 2023Observed: 1509.04 ft at 5:00PM Feb 03, 2023Observed: 1509.04 ft at 5:15PM Feb 03, 2023Observed: 1509.03 ft at 5:30PM Feb 03, 2023Observed: 1509.03 ft at 5:45PM Feb 03, 2023Observed: 1509.03 ft at 6:00PM Feb 03, 2023Observed: 1509.03 ft at 6:15PM Feb 03, 2023Observed: 1509.03 ft at 6:30PM Feb 03, 2023Observed: 1509.03 ft at 6:45PM Feb 03, 2023Observed: 1509.03 ft at 7:00PM Feb 03, 2023Observed: 1509.03 ft at 7:15PM Feb 03, 2023Observed: 1509.03 ft at 7:30PM Feb 03, 2023Observed: 1509.03 ft at 7:45PM Feb 03, 2023Observed: 1509.03 ft at 8:00PM Feb 03, 2023Observed: 1509.03 ft at 8:15PM Feb 03, 2023Observed: 1509.03 ft at 8:30PM Feb 03, 2023Observed: 1509.03 ft at 8:45PM Feb 03, 2023Observed: 1509.03 ft at 9:00PM Feb 03, 2023Observed: 1509.03 ft at 9:15PM Feb 03, 2023Observed: 1509.03 ft at 9:30PM Feb 03, 2023Observed: 1509.03 ft at 9:45PM Feb 03, 2023Observed: 1509.03 ft at 10:00PM Feb 03, 2023Observed: 1509.03 ft at 10:15PM Feb 03, 2023Observed: 1509.03 ft at 10:30PM Feb 03, 2023Observed: 1509.03 ft at 10:45PM Feb 03, 2023Observed: 1509.03 ft at 11:00PM Feb 03, 2023Observed: 1509.03 ft at 11:15PM Feb 03, 2023Observed: 1509.03 ft at 11:30PM Feb 03, 2023Observed: 1509.03 ft at 11:45PM Feb 03, 2023Observed: 1509.03 ft at 12:00AM Feb 04, 2023Observed: 1509.03 ft at 12:15AM Feb 04, 2023Observed: 1509.03 ft at 12:30AM Feb 04, 2023Observed: 1509.03 ft at 12:45AM Feb 04, 2023Observed: 1509.03 ft at 1:00AM Feb 04, 2023Observed: 1509.04 ft at 1:15AM Feb 04, 2023Observed: 1509.03 ft at 1:30AM Feb 04, 2023Observed: 1509.03 ft at 1:45AM Feb 04, 2023Observed: 1509.03 ft at 2:00AM Feb 04, 2023Observed: 1509.03 ft at 2:15AM Feb 04, 2023Observed: 1509.03 ft at 2:30AM Feb 04, 2023Observed: 1509.03 ft at 2:45AM Feb 04, 2023Observed: 1509.03 ft at 3:00AM Feb 04, 2023Observed: 1509.03 ft at 3:15AM Feb 04, 2023Observed: 1509.03 ft at 3:30AM Feb 04, 2023Observed: 1509.03 ft at 3:45AM Feb 04, 2023Observed: 1509.03 ft at 4:00AM Feb 04, 2023Observed: 1509.03 ft at 4:15AM Feb 04, 2023Observed: 1509.03 ft at 4:30AM Feb 04, 2023Observed: 1509.03 ft at 4:45AM Feb 04, 2023Observed: 1509.03 ft at 5:00AM Feb 04, 2023Observed: 1509.03 ft at 5:15AM Feb 04, 2023Observed: 1509.03 ft at 5:30AM Feb 04, 2023Observed: 1509.03 ft at 5:45AM Feb 04, 2023Observed: 1509.03 ft at 6:00AM Feb 04, 2023Observed: 1509.04 ft at 6:15AM Feb 04, 2023Observed: 1509.03 ft at 6:30AM Feb 04, 2023Observed: 1509.03 ft at 6:45AM Feb 04, 2023Observed: 1509.03 ft at 7:00AM Feb 04, 2023Observed: 1509.03 ft at 7:15AM Feb 04, 2023Observed: 1509.03 ft at 7:30AM Feb 04, 2023Observed: 1509.03 ft at 7:45AM Feb 04, 2023Observed: 1509.03 ft at 8:00AM Feb 04, 2023South Dakota DANREGAS2(plotting HGIRG) Graph Created (9:04AM Feb 4, 2023)ObservedLatest observed value: 1509.03 ft at 8:00 AM CST 4-Feb-2023. Flood Stage is 1516.5 ft
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About this graph
Tabular Data (UTC)
Tabular Data (CST)
XML Data
RSS Files
Datum: NAVD88
Metadata
NOTE: No forecasts are available for this location

NOTE: Gauge reading may be affected by ice.

NOTE: Forecasts are not available for the Big Sioux River near Egan. Only observed stages are available for this point.

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Upstream Gauge - above Flandreau Upstream Gauge Downstream Gauge Downstream Gauge - at Trent
Flood Categories (in feet)
Major Flood Stage: 1521
Moderate Flood Stage: 1519
Flood Stage: 1516.5
Action Stage: 1515
Low Stage (in feet): 0

Historic Crests
(1) 1,524.20 ft on 09/12/2019
(2) 1,522.48 ft on 03/23/2019 (P)
(3) 1,520.30 ft on 04/26/2018
(4) 1,518.60 ft on 04/24/2018
(5) 1,517.64 ft on 03/13/2020

(P): Preliminary values subject to further review.

Recent Crests
(1) 1,517.64 ft on 03/13/2020
(2) 1,524.20 ft on 09/12/2019
(3) 1,522.48 ft on 03/23/2019 (P)
(4) 1,520.30 ft on 04/26/2018
(5) 1,518.60 ft on 04/24/2018

(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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Gauge LocationGauge Map Marker
 Disclaimer
Latitude/Longitude Disclaimer: The gauge location shown in the above map is the approximate location based on the latitude/longitude coordinates provided to the NWS by the gauge owner.
Flood Impacts & Photos Collapse
If you notice any errors in the below information, please contact our Webmaster
1527 the bridge on 478th Avenue is overtopped.
1524 the bridge on 2nd Street is overtopped.
1523 the brige on Highway 34 is overtopped, and water reaches the bottom of the bridge on 478th Avenue.
1522 water reaches the bottom of the brige on 2nd Street and the ballfield at Egan Park floods.
1521 Highway 34 begins to flood, and 478th Avenue north of the bridge begins to flood.
1519 water is across the road on both sides of the bridge by the Egan Park, and water reaches the bottom of the bridge on Highway 34.
1516.5 flooding begins to affect agricultural lands around Egan.
1515.5 the lowest banks overflow near Highway 34 and also near 478th Avenue.
About This Location Collapse

Latitude: 44.007222° N, Longitude: 96.629167° W, Horizontal Datum: NAD27

River Stage
Reference Frame		 Gauge Height Flood Stage Uses
NWS stage 0 ft 1516.5 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 0.00 1516.50 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
Sioux Falls Weather Forecast Office
26 Weather Lane
Sioux Falls, SD 57104-0198
(605) 330-4247
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