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Hydrograph River at a Glance Download
Missouri River at Helena Valley Reservoir Pool (ft)Observed: 3816.68 ft at 6:00PM May 14, 2015Observed: 3816.67 ft at 6:15PM May 14, 2015Observed: 3816.67 ft at 6:30PM May 14, 2015Observed: 3816.68 ft at 6:45PM May 14, 2015Observed: 3816.67 ft at 7:00PM May 14, 2015Observed: 3816.66 ft at 7:15PM May 14, 2015Observed: 3816.66 ft at 7:30PM May 14, 2015Observed: 3816.69 ft at 7:45PM May 14, 2015Observed: 3816.69 ft at 8:00PM May 14, 2015Observed: 3816.68 ft at 8:15PM May 14, 2015Observed: 3816.68 ft at 8:30PM May 14, 2015Observed: 3816.67 ft at 8:45PM May 14, 2015Observed: 3816.66 ft at 9:00PM May 14, 2015Observed: 3816.68 ft at 9:15PM May 14, 2015Observed: 3816.68 ft at 9:30PM May 14, 2015Observed: 3816.68 ft at 9:45PM May 14, 2015Observed: 3816.68 ft at 10:00PM May 14, 2015Observed: 3816.69 ft at 10:15PM May 14, 2015Observed: 3816.67 ft at 10:30PM May 14, 2015Observed: 3816.67 ft at 10:45PM May 14, 2015Observed: 3816.68 ft at 11:00PM May 14, 2015Observed: 3816.68 ft at 11:15PM May 14, 2015Observed: 3816.68 ft at 11:30PM May 14, 2015Observed: 3816.68 ft at 11:45PM May 14, 2015Observed: 3816.68 ft at 12:00AM May 15, 2015Observed: 3816.68 ft at 12:15AM May 15, 2015Observed: 3816.68 ft at 12:30AM May 15, 2015Observed: 3816.68 ft at 12:45AM May 15, 2015Observed: 3816.68 ft at 1:00AM May 15, 2015Observed: 3816.68 ft at 1:15AM May 15, 2015Observed: 3816.68 ft at 1:30AM May 15, 2015Observed: 3816.68 ft at 1:45AM May 15, 2015Observed: 3816.68 ft at 2:00AM May 15, 2015Observed: 3816.68 ft at 2:15AM May 15, 2015Observed: 3816.69 ft at 2:30AM May 15, 2015Observed: 3816.69 ft at 2:45AM May 15, 2015Observed: 3816.68 ft at 3:00AM May 15, 2015Observed: 3816.68 ft at 3:15AM May 15, 2015Observed: 3816.67 ft at 3:30AM May 15, 2015Observed: 3816.67 ft at 3:45AM May 15, 2015Observed: 3816.69 ft at 4:00AM May 15, 2015Observed: 3816.69 ft at 4:15AM May 15, 2015Observed: 3816.68 ft at 4:30AM May 15, 2015Observed: 3816.68 ft at 4:45AM May 15, 2015Observed: 3816.67 ft at 5:00AM May 15, 2015Observed: 3816.68 ft at 5:15AM May 15, 2015Observed: 3816.68 ft at 5:30AM May 15, 2015Observed: 3816.67 ft at 5:45AM May 15, 2015Observed: 3816.67 ft at 6:00AM May 15, 2015Observed: 3816.68 ft at 6:15AM May 15, 2015Observed: 3816.68 ft at 6:30AM May 15, 2015Observed: 3816.68 ft at 6:45AM May 15, 2015Observed: 3816.68 ft at 7:00AM May 15, 2015Observed: 3816.68 ft at 7:15AM May 15, 2015Observed: 3816.68 ft at 7:30AM May 15, 2015Observed: 3816.69 ft at 7:45AM May 15, 2015Observed: 3816.69 ft at 8:00AM May 15, 2015Observed: 3816.7 ft at 8:15AM May 15, 2015Observed: 3816.69 ft at 8:30AM May 15, 2015Observed: 3816.68 ft at 8:45AM May 15, 2015Observed: 3816.7 ft at 9:00AM May 15, 2015Observed: 3816.68 ft at 9:15AM May 15, 2015Observed: 3816.69 ft at 9:30AM May 15, 2015Observed: 3816.7 ft at 9:45AM May 15, 2015Observed: 3816.69 ft at 10:00AM May 15, 2015Observed: 3816.69 ft at 10:15AM May 15, 2015Observed: 3816.7 ft at 10:30AM May 15, 2015Observed: 3816.71 ft at 10:45AM May 15, 2015Observed: 3816.71 ft at 11:00AM May 15, 2015Observed: 3816.7 ft at 11:15AM May 15, 2015Observed: 3816.7 ft at 11:30AM May 15, 2015Observed: 3816.7 ft at 11:45AM May 15, 2015Observed: 3816.71 ft at 12:00PM May 15, 2015Observed: 3816.71 ft at 12:15PM May 15, 2015Observed: 3816.71 ft at 12:30PM May 15, 2015Observed: 3816.71 ft at 12:45PM May 15, 2015Observed: 3816.72 ft at 1:00PM May 15, 2015Observed: 3816.72 ft at 1:15PM May 15, 2015Observed: 3816.71 ft at 1:30PM May 15, 2015Observed: 3816.72 ft at 1:45PM May 15, 2015Observed: 3816.72 ft at 2:00PM May 15, 2015Observed: 3816.73 ft at 2:15PM May 15, 2015Observed: 3816.73 ft at 2:30PM May 15, 2015Observed: 3816.73 ft at 2:45PM May 15, 2015Observed: 3816.72 ft at 3:00PM May 15, 2015Observed: 3816.72 ft at 3:15PM May 15, 2015Observed: 3816.73 ft at 3:30PM May 15, 2015Observed: 3816.73 ft at 3:45PM May 15, 2015Observed: 3816.73 ft at 4:00PM May 15, 2015Observed: 3816.73 ft at 4:15PM May 15, 2015Observed: 3816.74 ft at 4:30PM May 15, 2015Observed: 3816.74 ft at 4:45PM May 15, 2015Observed: 3816.74 ft at 5:00PM May 15, 2015Observed: 3816.73 ft at 5:15PM May 15, 2015Observed: 3816.74 ft at 5:30PM May 15, 2015Observed: 3816.74 ft at 5:45PM May 15, 2015Observed: 3816.75 ft at 6:00PM May 15, 2015Observed: 3816.74 ft at 6:15PM May 15, 2015Observed: 3816.75 ft at 6:30PM May 15, 2015Observed: 3816.75 ft at 6:45PM May 15, 2015Observed: 3816.76 ft at 7:00PM May 15, 2015Observed: 3816.75 ft at 7:15PM May 15, 2015Observed: 3816.76 ft at 7:30PM May 15, 2015Observed: 3816.75 ft at 7:45PM May 15, 2015Observed: 3816.75 ft at 8:00PM May 15, 2015Observed: 3816.75 ft at 8:15PM May 15, 2015Observed: 3816.75 ft at 8:30PM May 15, 2015Observed: 3816.76 ft at 8:45PM May 15, 2015Observed: 3816.76 ft at 9:00PM May 15, 2015Observed: 3816.76 ft at 9:15PM May 15, 2015Observed: 3816.76 ft at 9:30PM May 15, 2015Observed: 3816.76 ft at 9:45PM May 15, 2015Observed: 3816.77 ft at 10:00PM May 15, 2015Observed: 3816.77 ft at 10:15PM May 15, 2015Observed: 3816.77 ft at 10:30PM May 15, 2015Observed: 3816.77 ft at 10:45PM May 15, 2015Observed: 3816.77 ft at 11:00PM May 15, 2015Observed: 3816.77 ft at 11:15PM May 15, 2015Observed: 3816.77 ft at 11:30PM May 15, 2015Observed: 3816.77 ft at 11:45PM May 15, 2015Observed: 3816.77 ft at 12:00AM May 16, 2015Observed: 3816.77 ft at 12:15AM May 16, 2015Observed: 3816.78 ft at 12:30AM May 16, 2015Observed: 3816.78 ft at 12:45AM May 16, 2015Observed: 3816.78 ft at 1:00AM May 16, 2015Observed: 3816.77 ft at 1:15AM May 16, 2015Observed: 3816.79 ft at 1:30AM May 16, 2015Observed: 3816.79 ft at 1:45AM May 16, 2015Observed: 3816.79 ft at 2:00AM May 16, 2015Observed: 3816.79 ft at 2:15AM May 16, 2015Observed: 3816.8 ft at 2:30AM May 16, 2015Observed: 3816.8 ft at 2:45AM May 16, 2015Observed: 3816.8 ft at 3:00AM May 16, 2015Observed: 3816.79 ft at 3:15AM May 16, 2015Observed: 3816.8 ft at 3:30AM May 16, 2015Observed: 3816.8 ft at 3:45AM May 16, 2015Observed: 3816.8 ft at 4:00AM May 16, 2015Observed: 3816.81 ft at 4:15AM May 16, 2015Observed: 3816.81 ft at 4:30AM May 16, 2015Observed: 3816.81 ft at 4:45AM May 16, 2015Observed: 3816.81 ft at 5:00AM May 16, 2015Observed: 3816.82 ft at 5:15AM May 16, 2015Observed: 3816.81 ft at 5:30AM May 16, 2015Observed: 3816.82 ft at 5:45AM May 16, 2015Observed: 3816.82 ft at 6:00AM May 16, 2015Observed: 3816.82 ft at 6:15AM May 16, 2015Observed: 3816.83 ft at 6:30AM May 16, 2015Observed: 3816.82 ft at 6:45AM May 16, 2015Observed: 3816.83 ft at 7:00AM May 16, 2015Observed: 3816.83 ft at 7:15AM May 16, 2015Observed: 3816.84 ft at 7:30AM May 16, 2015Observed: 3816.83 ft at 7:45AM May 16, 2015Observed: 3816.83 ft at 8:00AM May 16, 2015Observed: 3816.83 ft at 8:15AM May 16, 2015Observed: 3816.83 ft at 8:30AM May 16, 2015Observed: 3816.83 ft at 8:45AM May 16, 2015Observed: 3816.83 ft at 9:00AM May 16, 2015Observed: 3816.84 ft at 9:15AM May 16, 2015Observed: 3816.85 ft at 9:30AM May 16, 2015Observed: 3816.86 ft at 9:45AM May 16, 2015Observed: 3816.85 ft at 10:00AM May 16, 2015Observed: 3816.86 ft at 10:15AM May 16, 2015Observed: 3816.85 ft at 10:30AM May 16, 2015Observed: 3816.86 ft at 10:45AM May 16, 2015Observed: 3816.86 ft at 11:00AM May 16, 2015Observed: 3816.87 ft at 11:15AM May 16, 2015Observed: 3816.87 ft at 11:30AM May 16, 2015Observed: 3816.88 ft at 11:45AM May 16, 2015Observed: 3816.88 ft at 12:00PM May 16, 2015Observed: 3816.88 ft at 12:15PM May 16, 2015Observed: 3816.89 ft at 12:30PM May 16, 2015Observed: 3816.89 ft at 12:45PM May 16, 2015Observed: 3816.89 ft at 1:00PM May 16, 2015Observed: 3816.91 ft at 1:15PM May 16, 2015Observed: 3816.9 ft at 1:30PM May 16, 2015Observed: 3816.91 ft at 1:45PM May 16, 2015Observed: 3816.91 ft at 2:00PM May 16, 2015Observed: 3816.91 ft at 2:15PM May 16, 2015Observed: 3816.92 ft at 2:30PM May 16, 2015Observed: 3816.92 ft at 2:45PM May 16, 2015Observed: 3816.92 ft at 3:00PM May 16, 2015Observed: 3816.92 ft at 3:15PM May 16, 2015Observed: 3816.92 ft at 3:30PM May 16, 2015Observed: 3816.92 ft at 3:45PM May 16, 2015Observed: 3816.93 ft at 4:00PM May 16, 2015Observed: 3816.93 ft at 4:15PM May 16, 2015Observed: 3816.93 ft at 4:30PM May 16, 2015Observed: 3816.93 ft at 4:45PM May 16, 2015Observed: 3816.93 ft at 5:00PM May 16, 2015Observed: 3816.94 ft at 5:15PM May 16, 2015Observed: 3816.94 ft at 5:30PM May 16, 2015Observed: 3816.94 ft at 5:45PM May 16, 2015Observed: 3816.94 ft at 6:00PM May 16, 2015Observed: 3816.95 ft at 6:15PM May 16, 2015Observed: 3816.96 ft at 6:30PM May 16, 2015Observed: 3816.95 ft at 6:45PM May 16, 2015Observed: 3816.95 ft at 7:00PM May 16, 2015Observed: 3816.94 ft at 7:15PM May 16, 2015Observed: 3816.95 ft at 7:30PM May 16, 2015Observed: 3816.96 ft at 7:45PM May 16, 2015Observed: 3816.95 ft at 8:00PM May 16, 2015Observed: 3816.95 ft at 8:15PM May 16, 2015Observed: 3816.96 ft at 8:30PM May 16, 2015Observed: 3816.96 ft at 8:45PM May 16, 2015Observed: 3816.96 ft at 9:00PM May 16, 2015Observed: 3816.97 ft at 9:15PM May 16, 2015Observed: 3816.96 ft at 9:30PM May 16, 2015Observed: 3816.96 ft at 9:45PM May 16, 2015Observed: 3816.97 ft at 10:00PM May 16, 2015Observed: 3816.97 ft at 10:15PM May 16, 2015Observed: 3816.96 ft at 10:30PM May 16, 2015Observed: 3816.96 ft at 10:45PM May 16, 2015Observed: 3816.97 ft at 11:00PM May 16, 2015Observed: 3816.97 ft at 11:15PM May 16, 2015Observed: 3816.97 ft at 11:30PM May 16, 2015Observed: 3816.98 ft at 11:45PM May 16, 2015Observed: 3816.98 ft at 12:00AM May 17, 2015Observed: 3816.99 ft at 12:15AM May 17, 2015Observed: 3816.99 ft at 12:30AM May 17, 2015Observed: 3816.99 ft at 12:45AM May 17, 2015Observed: 3817 ft at 1:00AM May 17, 2015Observed: 3816.99 ft at 1:15AM May 17, 2015Observed: 3816.99 ft at 1:30AM May 17, 2015Observed: 3817.01 ft at 1:45AM May 17, 2015Observed: 3817 ft at 2:00AM May 17, 2015Observed: 3817.01 ft at 2:15AM May 17, 2015Observed: 3817.01 ft at 2:30AM May 17, 2015Observed: 3817.02 ft at 2:45AM May 17, 2015Observed: 3817.02 ft at 3:00AM May 17, 2015Observed: 3817.02 ft at 3:15AM May 17, 2015Observed: 3817.02 ft at 3:30AM May 17, 2015Observed: 3817.02 ft at 3:45AM May 17, 2015Observed: 3817.02 ft at 4:00AM May 17, 2015Observed: 3817.02 ft at 4:15AM May 17, 2015Observed: 3817.03 ft at 4:30AM May 17, 2015Observed: 3817.03 ft at 4:45AM May 17, 2015Observed: 3817.03 ft at 5:00AM May 17, 2015Observed: 3817.03 ft at 5:15AM May 17, 2015Observed: 3817.03 ft at 5:30AM May 17, 2015Observed: 3817.03 ft at 5:45AM May 17, 2015Observed: 3817.02 ft at 6:00AM May 17, 2015Observed: 3817.03 ft at 6:15AM May 17, 2015Observed: 3817.03 ft at 6:30AM May 17, 2015Observed: 3817.04 ft at 6:45AM May 17, 2015Observed: 3817.05 ft at 7:00AM May 17, 2015Observed: 3817.05 ft at 7:15AM May 17, 2015Observed: 3817.05 ft at 7:30AM May 17, 2015Observed: 3817.05 ft at 7:45AM May 17, 2015Observed: 3817.05 ft at 8:00AM May 17, 2015Observed: 3817.05 ft at 8:15AM May 17, 2015Observed: 3817.05 ft at 8:30AM May 17, 2015Observed: 3817.05 ft at 8:45AM May 17, 2015Observed: 3817.06 ft at 9:00AM May 17, 2015Observed: 3817.06 ft at 9:15AM May 17, 2015Observed: 3817.08 ft at 9:30AM May 17, 2015Observed: 3817.06 ft at 9:45AM May 17, 2015Observed: 3817.07 ft at 10:00AM May 17, 2015Observed: 3817.07 ft at 10:15AM May 17, 2015Observed: 3817.06 ft at 10:30AM May 17, 2015Observed: 3817.08 ft at 10:45AM May 17, 2015Observed: 3817.07 ft at 11:00AM May 17, 2015Observed: 3817.09 ft at 11:15AM May 17, 2015Observed: 3817.09 ft at 11:30AM May 17, 2015Observed: 3817.07 ft at 11:45AM May 17, 2015Observed: 3817.07 ft at 12:00PM May 17, 2015Observed: 3817.09 ft at 12:15PM May 17, 2015Observed: 3817.08 ft at 12:30PM May 17, 2015Observed: 3817.08 ft at 12:45PM May 17, 2015Observed: 3817.1 ft at 1:00PM May 17, 2015Observed: 3817.1 ft at 1:15PM May 17, 2015Observed: 3817.1 ft at 1:30PM May 17, 2015Observed: 3817.09 ft at 1:45PM May 17, 2015Observed: 3817.1 ft at 2:00PM May 17, 2015Observed: 3817.1 ft at 2:15PM May 17, 2015Observed: 3817.1 ft at 2:30PM May 17, 2015Observed: 3817.1 ft at 2:45PM May 17, 2015Observed: 3817.11 ft at 3:00PM May 17, 2015Observed: 3817.11 ft at 3:15PM May 17, 2015Observed: 3817.1 ft at 3:30PM May 17, 2015Observed: 3817.11 ft at 3:45PM May 17, 2015Observed: 3817.12 ft at 4:00PM May 17, 2015Observed: 3817.11 ft at 4:15PM May 17, 2015Observed: 3817.12 ft at 4:30PM May 17, 2015Observed: 3817.12 ft at 4:45PM May 17, 2015Observed: 3817.12 ft at 5:00PM May 17, 2015Observed: 3817.11 ft at 5:15PM May 17, 2015Observed: 3817.12 ft at 5:30PM May 17, 2015Observed: 3817.13 ft at 5:45PM May 17, 2015Observed: 3817.13 ft at 6:00PM May 17, 2015Observed: 3817.12 ft at 6:15PM May 17, 2015Observed: 3817.13 ft at 6:30PM May 17, 2015Observed: 3817.14 ft at 6:45PM May 17, 2015Observed: 3817.14 ft at 7:00PM May 17, 2015Observed: 3817.13 ft at 7:15PM May 17, 2015Observed: 3817.14 ft at 7:30PM May 17, 2015Observed: 3817.14 ft at 7:45PM May 17, 2015Observed: 3817.13 ft at 8:00PM May 17, 2015Observed: 3817.14 ft at 8:15PM May 17, 2015Observed: 3817.15 ft at 8:30PM May 17, 2015Observed: 3817.15 ft at 8:45PM May 17, 2015Observed: 3817.15 ft at 9:00PM May 17, 2015Observed: 3817.14 ft at 9:15PM May 17, 2015Observed: 3817.15 ft at 9:30PM May 17, 2015Observed: 3817.15 ft at 9:45PM May 17, 2015Observed: 3817.14 ft at 10:00PM May 17, 2015Observed: 3817.14 ft at 10:15PM May 17, 2015Observed: 3817.15 ft at 10:30PM May 17, 2015Observed: 3817.15 ft at 10:45PM May 17, 2015Observed: 3817.14 ft at 11:00PM May 17, 2015Observed: 3817.15 ft at 11:15PM May 17, 2015Observed: 3817.15 ft at 11:30PM May 17, 2015Observed: 3817.16 ft at 11:45PM May 17, 2015Observed: 3817.16 ft at 12:00AM May 18, 2015Observed: 3817.17 ft at 12:15AM May 18, 2015Observed: 3817.17 ft at 12:30AM May 18, 2015Observed: 3817.17 ft at 12:45AM May 18, 2015Observed: 3817.17 ft at 1:00AM May 18, 2015Observed: 3817.18 ft at 1:15AM May 18, 2015Observed: 3817.18 ft at 1:30AM May 18, 2015Observed: 3817.18 ft at 1:45AM May 18, 2015Observed: 3817.19 ft at 2:00AM May 18, 2015Observed: 3817.19 ft at 2:15AM May 18, 2015Observed: 3817.19 ft at 2:30AM May 18, 2015Observed: 3817.19 ft at 2:45AM May 18, 2015Observed: 3817.19 ft at 3:00AM May 18, 2015Observed: 3817.19 ft at 3:15AM May 18, 2015Observed: 3817.19 ft at 3:30AM May 18, 2015Observed: 3817.19 ft at 3:45AM May 18, 2015Observed: 3817.19 ft at 4:00AM May 18, 2015Observed: 3817.2 ft at 4:15AM May 18, 2015Observed: 3817.2 ft at 4:30AM May 18, 2015Observed: 3817.2 ft at 4:45AM May 18, 2015Observed: 3817.2 ft at 5:00AM May 18, 2015Observed: 3817.19 ft at 5:15AM May 18, 2015Observed: 3817.2 ft at 5:30AM May 18, 2015Observed: 3817.2 ft at 5:45AM May 18, 2015Observed: 3817.21 ft at 6:00AM May 18, 2015Observed: 3817.21 ft at 6:15AM May 18, 2015Observed: 3817.21 ft at 6:30AM May 18, 2015Observed: 3817.21 ft at 6:45AM May 18, 2015Observed: 3817.22 ft at 7:00AM May 18, 2015Observed: 3817.22 ft at 7:15AM May 18, 2015Observed: 3817.23 ft at 7:30AM May 18, 2015Observed: 3817.22 ft at 7:45AM May 18, 2015Observed: 3817.23 ft at 8:00AM May 18, 2015Observed: 3817.23 ft at 8:15AM May 18, 2015Observed: 3817.23 ft at 8:30AM May 18, 2015Observed: 3817.23 ft at 8:45AM May 18, 2015Observed: 3817.23 ft at 9:00AM May 18, 2015Observed: 3817.24 ft at 9:15AM May 18, 2015Observed: 3817.24 ft at 9:30AM May 18, 2015Observed: 3817.24 ft at 9:45AM May 18, 2015Observed: 3817.25 ft at 10:00AM May 18, 2015Observed: 3817.25 ft at 10:15AM May 18, 2015Observed: 3817.25 ft at 10:30AM May 18, 2015Observed: 3817.25 ft at 10:45AM May 18, 2015Observed: 3817.26 ft at 11:00AM May 18, 2015Observed: 3817.27 ft at 11:15AM May 18, 2015Observed: 3817.27 ft at 11:30AM May 18, 2015Observed: 3817.28 ft at 11:45AM May 18, 2015Observed: 3817.28 ft at 12:00PM May 18, 2015Observed: 3817.28 ft at 12:15PM May 18, 2015Observed: 3817.28 ft at 12:30PM May 18, 2015Observed: 3817.28 ft at 12:45PM May 18, 2015Observed: 3817.29 ft at 1:00PM May 18, 2015Observed: 3817.3 ft at 1:15PM May 18, 2015Observed: 3817.29 ft at 1:30PM May 18, 2015Observed: 3817.29 ft at 1:45PM May 18, 2015Observed: 3817.3 ft at 2:00PM May 18, 2015Observed: 3817.3 ft at 2:15PM May 18, 2015Observed: 3817.3 ft at 2:30PM May 18, 2015Observed: 3817.3 ft at 2:45PM May 18, 2015Observed: 3817.31 ft at 3:00PM May 18, 2015Observed: 3817.31 ft at 3:15PM May 18, 2015Observed: 3817.32 ft at 3:30PM May 18, 2015Observed: 3817.32 ft at 3:45PM May 18, 2015Observed: 3817.32 ft at 4:00PM May 18, 2015Observed: 3817.32 ft at 4:15PM May 18, 2015Observed: 3817.33 ft at 4:30PM May 18, 2015Observed: 3817.33 ft at 4:45PM May 18, 2015Observed: 3817.34 ft at 5:00PM May 18, 2015Observed: 3817.34 ft at 5:15PM May 18, 2015Observed: 3817.34 ft at 5:30PM May 18, 2015Observed: 3817.34 ft at 5:45PM May 18, 2015Observed: 3817.35 ft at 6:00PM May 18, 2015Observed: 3817.35 ft at 6:15PM May 18, 2015Observed: 3817.35 ft at 6:30PM May 18, 2015Observed: 3817.36 ft at 6:45PM May 18, 2015Observed: 3817.36 ft at 7:00PM May 18, 2015Observed: 3817.36 ft at 7:15PM May 18, 2015Observed: 3817.36 ft at 7:30PM May 18, 2015Observed: 3817.37 ft at 7:45PM May 18, 2015Observed: 3817.37 ft at 8:00PM May 18, 2015Observed: 3817.37 ft at 8:15PM May 18, 2015Observed: 3817.36 ft at 8:30PM May 18, 2015Observed: 3817.37 ft at 8:45PM May 18, 2015Observed: 3817.36 ft at 9:00PM May 18, 2015Observed: 3817.37 ft at 9:15PM May 18, 2015Observed: 3817.37 ft at 9:30PM May 18, 2015Observed: 3817.37 ft at 9:45PM May 18, 2015Observed: 3817.38 ft at 10:00PM May 18, 2015Observed: 3817.38 ft at 10:15PM May 18, 2015Observed: 3817.38 ft at 10:30PM May 18, 2015Observed: 3817.38 ft at 10:45PM May 18, 2015Observed: 3817.39 ft at 11:00PM May 18, 2015Observed: 3817.39 ft at 11:15PM May 18, 2015Observed: 3817.39 ft at 11:30PM May 18, 2015Observed: 3817.39 ft at 11:45PM May 18, 2015Observed: 3817.4 ft at 12:00AM May 19, 2015Observed: 3817.4 ft at 12:15AM May 19, 2015Observed: 3817.41 ft at 12:30AM May 19, 2015Observed: 3817.41 ft at 12:45AM May 19, 2015Observed: 3817.43 ft at 1:00AM May 19, 2015Observed: 3817.43 ft at 1:15AM May 19, 2015Observed: 3817.44 ft at 1:30AM May 19, 2015Observed: 3817.44 ft at 1:45AM May 19, 2015Observed: 3817.44 ft at 2:00AM May 19, 2015Observed: 3817.44 ft at 2:15AM May 19, 2015Observed: 3817.45 ft at 2:30AM May 19, 2015Observed: 3817.45 ft at 2:45AM May 19, 2015Observed: 3817.45 ft at 3:00AM May 19, 2015Observed: 3817.46 ft at 3:15AM May 19, 2015Observed: 3817.46 ft at 3:30AM May 19, 2015Observed: 3817.46 ft at 3:45AM May 19, 2015Observed: 3817.46 ft at 4:00AM May 19, 2015Observed: 3817.47 ft at 4:15AM May 19, 2015Observed: 3817.47 ft at 4:30AM May 19, 2015Observed: 3817.47 ft at 4:45AM May 19, 2015Observed: 3817.47 ft at 5:00AM May 19, 2015Observed: 3817.48 ft at 5:15AM May 19, 2015Observed: 3817.48 ft at 5:30AM May 19, 2015Observed: 3817.48 ft at 5:45AM May 19, 2015Observed: 3817.48 ft at 6:00AM May 19, 2015Observed: 3817.49 ft at 6:15AM May 19, 2015Observed: 3817.49 ft at 6:30AM May 19, 2015Observed: 3817.49 ft at 6:45AM May 19, 2015Observed: 3817.49 ft at 7:00AM May 19, 2015Observed: 3817.5 ft at 7:15AM May 19, 2015Observed: 3817.5 ft at 7:30AM May 19, 2015Observed: 3817.5 ft at 7:45AM May 19, 2015Observed: 3817.5 ft at 8:00AM May 19, 2015Observed: 3817.51 ft at 8:15AM May 19, 2015Observed: 3817.51 ft at 8:30AM May 19, 2015Observed: 3817.51 ft at 8:45AM May 19, 2015Observed: 3817.51 ft at 9:00AM May 19, 2015Observed: 3817.52 ft at 9:15AM May 19, 2015Observed: 3817.52 ft at 9:30AM May 19, 2015Observed: 3817.52 ft at 9:45AM May 19, 2015Observed: 3817.53 ft at 10:00AM May 19, 2015Observed: 3817.53 ft at 10:15AM May 19, 2015Observed: 3817.53 ft at 10:30AM May 19, 2015Observed: 3817.53 ft at 10:45AM May 19, 2015Observed: 3817.54 ft at 11:00AM May 19, 2015Observed: 3817.54 ft at 11:15AM May 19, 2015Observed: 3817.54 ft at 11:30AM May 19, 2015Observed: 3817.55 ft at 11:45AM May 19, 2015Observed: 3817.55 ft at 12:00PM May 19, 2015Observed: 3817.56 ft at 12:15PM May 19, 2015Observed: 3817.56 ft at 12:30PM May 19, 2015Observed: 3817.56 ft at 12:45PM May 19, 2015Observed: 3817.57 ft at 1:00PM May 19, 2015Observed: 3817.57 ft at 1:15PM May 19, 2015Observed: 3817.57 ft at 1:30PM May 19, 2015Observed: 3817.57 ft at 1:45PM May 19, 2015Observed: 3817.58 ft at 2:00PM May 19, 2015Observed: 3817.58 ft at 2:15PM May 19, 2015Observed: 3817.59 ft at 2:30PM May 19, 2015Observed: 3817.59 ft at 2:45PM May 19, 2015Observed: 3817.59 ft at 3:00PM May 19, 2015Observed: 3817.59 ft at 3:15PM May 19, 2015Observed: 3817.6 ft at 3:30PM May 19, 2015Observed: 3817.6 ft at 3:45PM May 19, 2015Observed: 3817.6 ft at 4:00PM May 19, 2015Observed: 3817.6 ft at 4:15PM May 19, 2015Observed: 3817.59 ft at 4:30PM May 19, 2015Observed: 3817.6 ft at 4:45PM May 19, 2015Observed: 3817.6 ft at 5:00PM May 19, 2015Observed: 3817.6 ft at 5:15PM May 19, 2015Observed: 3817.61 ft at 5:30PM May 19, 2015Observed: 3817.61 ft at 5:45PM May 19, 2015Observed: 3817.62 ft at 6:00PM May 19, 2015Observed: 3817.61 ft at 6:15PM May 19, 2015Observed: 3817.62 ft at 6:30PM May 19, 2015Observed: 3817.63 ft at 6:45PM May 19, 2015Observed: 3817.63 ft at 7:00PM May 19, 2015Observed: 3817.63 ft at 7:15PM May 19, 2015Observed: 3817.63 ft at 7:30PM May 19, 2015Observed: 3817.64 ft at 7:45PM May 19, 2015Observed: 3817.64 ft at 8:00PM May 19, 2015Observed: 3817.63 ft at 8:15PM May 19, 2015Observed: 3817.64 ft at 8:30PM May 19, 2015Observed: 3817.64 ft at 8:45PM May 19, 2015Observed: 3817.65 ft at 9:00PM May 19, 2015Observed: 3817.65 ft at 9:15PM May 19, 2015Observed: 3817.66 ft at 9:30PM May 19, 2015Observed: 3817.65 ft at 9:45PM May 19, 2015Observed: 3817.67 ft at 10:00PM May 19, 2015Observed: 3817.67 ft at 10:15PM May 19, 2015Observed: 3817.67 ft at 10:30PM May 19, 2015Observed: 3817.68 ft at 10:45PM May 19, 2015Observed: 3817.68 ft at 11:00PM May 19, 2015Observed: 3817.68 ft at 11:15PM May 19, 2015Observed: 3817.69 ft at 11:30PM May 19, 2015Observed: 3817.69 ft at 11:45PM May 19, 2015Observed: 3817.69 ft at 12:00AM May 20, 2015Observed: 3817.69 ft at 12:15AM May 20, 2015Observed: 3817.7 ft at 12:30AM May 20, 2015Observed: 3817.7 ft at 12:45AM May 20, 2015Observed: 3817.71 ft at 1:00AM May 20, 2015Observed: 3817.71 ft at 1:15AM May 20, 2015Observed: 3817.72 ft at 1:30AM May 20, 2015Observed: 3817.72 ft at 1:45AM May 20, 2015Observed: 3817.73 ft at 2:00AM May 20, 2015Observed: 3817.73 ft at 2:15AM May 20, 2015Observed: 3817.73 ft at 2:30AM May 20, 2015Observed: 3817.73 ft at 2:45AM May 20, 2015Observed: 3817.73 ft at 3:00AM May 20, 2015Observed: 3817.73 ft at 3:15AM May 20, 2015Observed: 3817.73 ft at 3:30AM May 20, 2015Observed: 3817.74 ft at 3:45AM May 20, 2015Observed: 3817.74 ft at 4:00AM May 20, 2015Observed: 3817.74 ft at 4:15AM May 20, 2015Observed: 3817.76 ft at 4:30AM May 20, 2015Observed: 3817.75 ft at 4:45AM May 20, 2015Observed: 3817.76 ft at 5:00AM May 20, 2015Observed: 3817.76 ft at 5:15AM May 20, 2015Observed: 3817.76 ft at 5:30AM May 20, 2015Observed: 3817.77 ft at 5:45AM May 20, 2015Observed: 3817.77 ft at 6:00AM May 20, 2015Observed: 3817.77 ft at 6:15AM May 20, 2015Observed: 3817.77 ft at 6:30AM May 20, 2015Observed: 3817.77 ft at 6:45AM May 20, 2015Observed: 3817.78 ft at 7:00AM May 20, 2015Observed: 3817.79 ft at 7:15AM May 20, 2015Observed: 3817.79 ft at 7:30AM May 20, 2015Observed: 3817.8 ft at 7:45AM May 20, 2015Observed: 3817.8 ft at 8:00AM May 20, 2015Observed: 3817.81 ft at 8:15AM May 20, 2015Observed: 3817.81 ft at 8:30AM May 20, 2015Observed: 3817.81 ft at 8:45AM May 20, 2015Observed: 3817.82 ft at 9:00AM May 20, 2015Observed: 3817.82 ft at 9:15AM May 20, 2015Observed: 3817.82 ft at 9:30AM May 20, 2015Observed: 3817.82 ft at 9:45AM May 20, 2015Observed: 3817.83 ft at 10:00AM May 20, 2015Observed: 3817.83 ft at 10:15AM May 20, 2015Observed: 3817.83 ft at 10:30AM May 20, 2015Observed: 3817.83 ft at 10:45AM May 20, 2015Observed: 3817.83 ft at 11:00AM May 20, 2015Observed: 3817.83 ft at 11:15AM May 20, 2015Observed: 3817.84 ft at 11:30AM May 20, 2015Observed: 3817.85 ft at 11:45AM May 20, 2015Observed: 3817.84 ft at 12:00PM May 20, 2015Observed: 3817.86 ft at 12:15PM May 20, 2015Observed: 3817.85 ft at 12:30PM May 20, 2015Observed: 3817.85 ft at 12:45PM May 20, 2015Observed: 3817.87 ft at 1:00PM May 20, 2015Observed: 3817.85 ft at 1:15PM May 20, 2015Observed: 3817.85 ft at 1:30PM May 20, 2015Observed: 3817.87 ft at 1:45PM May 20, 2015Observed: 3817.87 ft at 2:00PM May 20, 2015Observed: 3817.87 ft at 2:15PM May 20, 2015Observed: 3817.88 ft at 2:30PM May 20, 2015Observed: 3817.87 ft at 2:45PM May 20, 2015Observed: 3817.88 ft at 3:00PM May 20, 2015Observed: 3817.88 ft at 3:15PM May 20, 2015Observed: 3817.88 ft at 3:30PM May 20, 2015Observed: 3817.89 ft at 3:45PM May 20, 2015Observed: 3817.9 ft at 4:00PM May 20, 2015Observed: 3817.89 ft at 4:15PM May 20, 2015Observed: 3817.9 ft at 4:30PM May 20, 2015Observed: 3817.89 ft at 4:45PM May 20, 2015Observed: 3817.89 ft at 5:00PM May 20, 2015Observed: 3817.91 ft at 5:15PM May 20, 2015Observed: 3817.91 ft at 5:30PM May 20, 2015Observed: 3817.92 ft at 5:45PM May 20, 2015Observed: 3817.92 ft at 6:00PM May 20, 2015Observed: 3817.92 ft at 6:15PM May 20, 2015Observed: 3817.92 ft at 6:30PM May 20, 2015Observed: 3817.93 ft at 6:45PM May 20, 2015Observed: 3817.94 ft at 7:00PM May 20, 2015Observed: 3817.94 ft at 7:15PM May 20, 2015Observed: 3817.94 ft at 7:30PM May 20, 2015Observed: 3817.95 ft at 7:45PM May 20, 2015Observed: 3817.94 ft at 8:00PM May 20, 2015Observed: 3817.95 ft at 8:15PM May 20, 2015Observed: 3817.96 ft at 8:30PM May 20, 2015Observed: 3817.95 ft at 8:45PM May 20, 2015Observed: 3817.97 ft at 9:00PM May 20, 2015Observed: 3817.97 ft at 9:15PM May 20, 2015Observed: 3817.97 ft at 9:30PM May 20, 2015Observed: 3817.97 ft at 9:45PM May 20, 2015Observed: 3817.98 ft at 10:00PM May 20, 2015Observed: 3817.98 ft at 10:15PM May 20, 2015Observed: 3817.98 ft at 10:30PM May 20, 2015Observed: 3817.99 ft at 10:45PM May 20, 2015Observed: 3817.99 ft at 11:00PM May 20, 2015Observed: 3817.99 ft at 11:15PM May 20, 2015Observed: 3818 ft at 11:30PM May 20, 2015Observed: 3817.99 ft at 11:45PM May 20, 2015Observed: 3818 ft at 12:00AM May 21, 2015Observed: 3818.01 ft at 12:15AM May 21, 2015Observed: 3818.01 ft at 12:30AM May 21, 2015Observed: 3818.01 ft at 12:45AM May 21, 2015Observed: 3818.01 ft at 1:00AM May 21, 2015Observed: 3818.02 ft at 1:15AM May 21, 2015Observed: 3818.02 ft at 1:30AM May 21, 2015Observed: 3818.02 ft at 1:45AM May 21, 2015Observed: 3818.02 ft at 2:00AM May 21, 2015Observed: 3818.02 ft at 2:15AM May 21, 2015Observed: 3818.03 ft at 2:30AM May 21, 2015Observed: 3818.03 ft at 2:45AM May 21, 2015Observed: 3818.04 ft at 3:00AM May 21, 2015Observed: 3818.04 ft at 3:15AM May 21, 2015Observed: 3818.04 ft at 3:30AM May 21, 2015Observed: 3818.04 ft at 3:45AM May 21, 2015Observed: 3818.04 ft at 4:00AM May 21, 2015Observed: 3818.05 ft at 4:15AM May 21, 2015Observed: 3818.05 ft at 4:30AM May 21, 2015Observed: 3818.05 ft at 4:45AM May 21, 2015Observed: 3818.05 ft at 5:00AM May 21, 2015Observed: 3818.05 ft at 5:15AM May 21, 2015Observed: 3818.06 ft at 5:30AM May 21, 2015Observed: 3818.05 ft at 5:45AM May 21, 2015Observed: 3818.06 ft at 6:00AM May 21, 2015Observed: 3818.06 ft at 6:15AM May 21, 2015Observed: 3818.06 ft at 6:30AM May 21, 2015Observed: 3818.06 ft at 6:45AM May 21, 2015Observed: 3818.07 ft at 7:00AM May 21, 2015Observed: 3818.08 ft at 7:15AM May 21, 2015Observed: 3818.09 ft at 7:30AM May 21, 2015Observed: 3818.09 ft at 7:45AM May 21, 2015Observed: 3818.1 ft at 8:00AM May 21, 2015Observed: 3818.1 ft at 8:15AM May 21, 2015Observed: 3818.11 ft at 8:30AM May 21, 2015Observed: 3818.11 ft at 8:45AM May 21, 2015Observed: 3818.12 ft at 9:00AM May 21, 2015Observed: 3818.12 ft at 9:15AM May 21, 2015Observed: 3818.12 ft at 9:30AM May 21, 2015Observed: 3818.12 ft at 9:45AM May 21, 2015Observed: 3818.13 ft at 10:00AM May 21, 2015Observed: 3818.13 ft at 10:15AM May 21, 2015Observed: 3818.13 ft at 10:30AM May 21, 2015Observed: 3818.14 ft at 10:45AM May 21, 2015Observed: 3818.14 ft at 11:00AM May 21, 2015Observed: 3818.15 ft at 11:15AM May 21, 2015Observed: 3818.15 ft at 11:30AM May 21, 2015Observed: 3818.14 ft at 11:45AM May 21, 2015Observed: 3818.15 ft at 12:00PM May 21, 2015Observed: 3818.15 ft at 12:15PM May 21, 2015Observed: 3818.15 ft at 12:30PM May 21, 2015Observed: 3818.15 ft at 12:45PM May 21, 2015Observed: 3818.16 ft at 1:00PM May 21, 2015Observed: 3818.16 ft at 1:15PM May 21, 2015Observed: 3818.16 ft at 1:30PM May 21, 2015Observed: 3818.16 ft at 1:45PM May 21, 2015Observed: 3818.16 ft at 2:00PM May 21, 2015Observed: 3818.17 ft at 2:15PM May 21, 2015Observed: 3818.17 ft at 2:30PM May 21, 2015Observed: 3818.17 ft at 2:45PM May 21, 2015Observed: 3818.17 ft at 3:00PM May 21, 2015Observed: 3818.17 ft at 3:15PM May 21, 2015Observed: 3818.18 ft at 3:30PM May 21, 2015Observed: 3818.16 ft at 3:45PM May 21, 2015Observed: 3818.15 ft at 4:00PM May 21, 2015Observed: 3818.16 ft at 4:15PM May 21, 2015Observed: 3818.16 ft at 4:30PM May 21, 2015Observed: 3818.18 ft at 4:45PM May 21, 2015Observed: 3818.16 ft at 5:00PM May 21, 2015Observed: 3818.18 ft at 5:15PM May 21, 2015Observed: 3818.18 ft at 5:30PM May 21, 2015Observed: 3818.18 ft at 5:45PM May 21, 2015Observed: 3818.18 ft at 6:00PM May 21, 2015Observed: 3818.17 ft at 6:15PM May 21, 2015Observed: 3818.18 ft at 6:30PM May 21, 2015Observed: 3818.18 ft at 6:45PM May 21, 2015Observed: 3818.17 ft at 7:00PM May 21, 2015Observed: 3818.18 ft at 7:15PM May 21, 2015Observed: 3818.18 ft at 7:30PM May 21, 2015Observed: 3818.17 ft at 7:45PM May 21, 2015Observed: 3818.17 ft at 8:00PM May 21, 2015Observed: 3818.17 ft at 8:15PM May 21, 2015Observed: 3818.16 ft at 8:30PM May 21, 2015Observed: 3818.18 ft at 8:45PM May 21, 2015Observed: 3818.18 ft at 9:00PM May 21, 2015Observed: 3818.19 ft at 9:15PM May 21, 2015Observed: 3818.19 ft at 9:30PM May 21, 2015Observed: 3818.19 ft at 9:45PM May 21, 2015Observed: 3818.21 ft at 10:00PM May 21, 2015Observed: 3818.2 ft at 10:15PM May 21, 2015Observed: 3818.21 ft at 10:30PM May 21, 2015Observed: 3818.22 ft at 10:45PM May 21, 2015Observed: 3818.21 ft at 11:00PM May 21, 2015Observed: 3818.21 ft at 11:15PM May 21, 2015Observed: 3818.21 ft at 11:30PM May 21, 2015Observed: 3818.21 ft at 11:45PM May 21, 2015Observed: 3818.21 ft at 12:00AM May 22, 2015Observed: 3818.21 ft at 12:15AM May 22, 2015Observed: 3818.21 ft at 12:30AM May 22, 2015Observed: 3818.22 ft at 12:45AM May 22, 2015Observed: 3818.22 ft at 1:00AM May 22, 2015Observed: 3818.21 ft at 1:15AM May 22, 2015Observed: 3818.21 ft at 1:30AM May 22, 2015Observed: 3818.21 ft at 1:45AM May 22, 2015Observed: 3818.21 ft at 2:00AM May 22, 2015Observed: 3818.2 ft at 2:15AM May 22, 2015Observed: 3818.21 ft at 2:30AM May 22, 2015Observed: 3818.2 ft at 2:45AM May 22, 2015Observed: 3818.21 ft at 3:00AM May 22, 2015Observed: 3818.2 ft at 3:15AM May 22, 2015Observed: 3818.21 ft at 3:30AM May 22, 2015Observed: 3818.21 ft at 3:45AM May 22, 2015Observed: 3818.2 ft at 4:00AM May 22, 2015Observed: 3818.21 ft at 4:15AM May 22, 2015Observed: 3818.2 ft at 4:30AM May 22, 2015Observed: 3818.21 ft at 4:45AM May 22, 2015Observed: 3818.22 ft at 5:00AM May 22, 2015Observed: 3818.21 ft at 5:15AM May 22, 2015Observed: 3818.21 ft at 5:30AM May 22, 2015Observed: 3818.22 ft at 5:45AM May 22, 2015Observed: 3818.22 ft at 6:00AM May 22, 2015Observed: 3818.22 ft at 6:15AM May 22, 2015Observed: 3818.22 ft at 6:30AM May 22, 2015Observed: 3818.23 ft at 6:45AM May 22, 2015Observed: 3818.24 ft at 7:00AM May 22, 2015Observed: 3818.22 ft at 7:15AM May 22, 2015Observed: 3818.23 ft at 7:30AM May 22, 2015Observed: 3818.23 ft at 7:45AM May 22, 2015Observed: 3818.23 ft at 8:00AM May 22, 2015Observed: 3818.24 ft at 8:15AM May 22, 2015Observed: 3818.24 ft at 8:30AM May 22, 2015Observed: 3818.25 ft at 8:45AM May 22, 2015Observed: 3818.25 ft at 9:00AM May 22, 2015Observed: 3818.25 ft at 9:15AM May 22, 2015Observed: 3818.25 ft at 9:30AM May 22, 2015Observed: 3818.25 ft at 9:45AM May 22, 2015Observed: 3818.25 ft at 10:00AM May 22, 2015Observed: 3818.25 ft at 10:15AM May 22, 2015Observed: 3818.25 ft at 10:30AM May 22, 2015Observed: 3818.24 ft at 10:45AM May 22, 2015Observed: 3818.24 ft at 11:00AM May 22, 2015Observed: 3818.24 ft at 11:15AM May 22, 2015Observed: 3818.24 ft at 11:30AM May 22, 2015Observed: 3818.25 ft at 11:45AM May 22, 2015Highest Observation: 3818.26 ft at 12:00PM May 22, 2015Highest Observation: 3818.26 ft at 12:15PM May 22, 2015Highest Observation: 3818.26 ft at 12:30PM May 22, 2015Highest Observation: 3818.26 ft at 12:45PM May 22, 2015Highest Observation: 3818.26 ft at 1:00PM May 22, 2015Observed: 3818.25 ft at 1:15PM May 22, 2015Highest Observation: 3818.26 ft at 1:30PM May 22, 2015Observed: 3818.25 ft at 1:45PM May 22, 2015Observed: 3818.25 ft at 2:00PM May 22, 2015Observed: 3818.25 ft at 2:15PM May 22, 2015Observed: 3818.25 ft at 2:30PM May 22, 2015Observed: 3818.25 ft at 2:45PM May 22, 2015Observed: 3818.25 ft at 3:00PM May 22, 2015Observed: 3818.25 ft at 3:15PM May 22, 2015Observed: 3818.24 ft at 3:30PM May 22, 2015Observed: 3818.25 ft at 3:45PM May 22, 2015Observed: 3818.24 ft at 4:00PM May 22, 2015Observed: 3818.24 ft at 4:15PM May 22, 2015Observed: 3818.25 ft at 4:30PM May 22, 2015Observed: 3818.24 ft at 4:45PM May 22, 2015Observed: 3818.24 ft at 5:00PM May 22, 2015Observed: 3818.24 ft at 5:15PM May 22, 2015Observed: 3818.23 ft at 5:30PM May 22, 2015Observed: 3818.22 ft at 5:45PM May 22, 2015Observed: 3818.23 ft at 6:00PM May 22, 2015Observed: 3818.22 ft at 6:15PM May 22, 2015Observed: 3818.23 ft at 6:30PM May 22, 2015Observed: 3818.22 ft at 6:45PM May 22, 2015Observed: 3818.22 ft at 7:00PM May 22, 2015Observed: 3818.22 ft at 7:15PM May 22, 2015Observed: 3818.22 ft at 7:30PM May 22, 2015Observed: 3818.22 ft at 7:45PM May 22, 2015Observed: 3818.23 ft at 8:00PM May 22, 2015Observed: 3818.23 ft at 8:15PM May 22, 2015Observed: 3818.24 ft at 8:30PM May 22, 2015Observed: 3818.24 ft at 8:45PM May 22, 2015Observed: 3818.24 ft at 9:00PM May 22, 2015Observed: 3818.24 ft at 9:15PM May 22, 2015Observed: 3818.24 ft at 9:30PM May 22, 2015Observed: 3818.23 ft at 9:45PM May 22, 2015Observed: 3818.22 ft at 10:00PM May 22, 2015Observed: 3818.22 ft at 10:15PM May 22, 2015Observed: 3818.22 ft at 10:30PM May 22, 2015Observed: 3818.23 ft at 10:45PM May 22, 2015Observed: 3818.23 ft at 11:00PM May 22, 2015Observed: 3818.23 ft at 11:15PM May 22, 2015Observed: 3818.23 ft at 11:30PM May 22, 2015Observed: 3818.23 ft at 11:45PM May 22, 2015Observed: 3818.23 ft at 12:00AM May 23, 2015Observed: 3818.23 ft at 12:15AM May 23, 2015Observed: 3818.23 ft at 12:30AM May 23, 2015Observed: 3818.23 ft at 12:45AM May 23, 2015Observed: 3818.22 ft at 1:00AM May 23, 2015Observed: 3818.23 ft at 1:15AM May 23, 2015Observed: 3818.23 ft at 1:30AM May 23, 2015Observed: 3818.23 ft at 1:45AM May 23, 2015Observed: 3818.22 ft at 2:00AM May 23, 2015Observed: 3818.22 ft at 2:15AM May 23, 2015Observed: 3818.23 ft at 2:30AM May 23, 2015Observed: 3818.23 ft at 2:45AM May 23, 2015Observed: 3818.22 ft at 3:00AM May 23, 2015Observed: 3818.24 ft at 3:15AM May 23, 2015Observed: 3818.24 ft at 3:30AM May 23, 2015Observed: 3818.22 ft at 3:45AM May 23, 2015Observed: 3818.23 ft at 4:00AM May 23, 2015Observed: 3818.23 ft at 4:15AM May 23, 2015Observed: 3818.23 ft at 4:30AM May 23, 2015Observed: 3818.24 ft at 4:45AM May 23, 2015Observed: 3818.23 ft at 5:00AM May 23, 2015Observed: 3818.23 ft at 5:15AM May 23, 2015Observed: 3818.23 ft at 5:30AM May 23, 2015Observed: 3818.24 ft at 5:45AM May 23, 2015Observed: 3818.23 ft at 6:00AM May 23, 2015Observed: 3818.23 ft at 6:15AM May 23, 2015Observed: 3818.23 ft at 6:30AM May 23, 2015Observed: 3818.23 ft at 6:45AM May 23, 2015Observed: 3818.24 ft at 7:00AM May 23, 2015Observed: 3818.23 ft at 7:15AM May 23, 2015Observed: 3818.23 ft at 7:30AM May 23, 2015Observed: 3818.23 ft at 7:45AM May 23, 2015Observed: 3818.23 ft at 8:00AM May 23, 2015Observed: 3818.23 ft at 8:15AM May 23, 2015Observed: 3818.23 ft at 8:30AM May 23, 2015Observed: 3818.23 ft at 8:45AM May 23, 2015Observed: 3818.22 ft at 9:00AM May 23, 2015Observed: 3818.23 ft at 9:15AM May 23, 2015Observed: 3818.23 ft at 9:30AM May 23, 2015Observed: 3818.22 ft at 9:45AM May 23, 2015Observed: 3818.23 ft at 10:00AM May 23, 2015Observed: 3818.22 ft at 10:15AM May 23, 2015Observed: 3818.22 ft at 10:30AM May 23, 2015Observed: 3818.22 ft at 10:45AM May 23, 2015Observed: 3818.22 ft at 11:00AM May 23, 2015Observed: 3818.22 ft at 11:15AM May 23, 2015Observed: 3818.22 ft at 11:30AM May 23, 2015Observed: 3818.22 ft at 11:45AM May 23, 2015Observed: 3818.22 ft at 12:00PM May 23, 2015Observed: 3818.22 ft at 12:15PM May 23, 2015Observed: 3818.23 ft at 12:30PM May 23, 2015Observed: 3818.23 ft at 12:45PM May 23, 2015Observed: 3818.23 ft at 1:00PM May 23, 2015Observed: 3818.24 ft at 1:15PM May 23, 2015Observed: 3818.23 ft at 1:30PM May 23, 2015Observed: 3818.23 ft at 1:45PM May 23, 2015Observed: 3818.23 ft at 2:00PM May 23, 2015Observed: 3818.23 ft at 2:15PM May 23, 2015Observed: 3818.23 ft at 2:30PM May 23, 2015Observed: 3818.23 ft at 2:45PM May 23, 2015Observed: 3818.23 ft at 3:00PM May 23, 2015Observed: 3818.23 ft at 3:15PM May 23, 2015Observed: 3818.23 ft at 3:30PM May 23, 2015Observed: 3818.23 ft at 3:45PM May 23, 2015Observed: 3818.22 ft at 4:00PM May 23, 2015Observed: 3818.23 ft at 4:15PM May 23, 2015Observed: 3818.23 ft at 4:30PM May 23, 2015Observed: 3818.23 ft at 4:45PM May 23, 2015Observed: 3818.23 ft at 5:00PM May 23, 2015Observed: 3818.23 ft at 5:15PM May 23, 2015Observed: 3818.23 ft at 5:30PM May 23, 2015Observed: 3818.22 ft at 5:45PM May 23, 2015Observed: 3818.23 ft at 6:00PM May 23, 2015Observed: 3818.23 ft at 6:15PM May 23, 2015Observed: 3818.23 ft at 6:30PM May 23, 2015Observed: 3818.24 ft at 6:45PM May 23, 2015Observed: 3818.24 ft at 7:00PM May 23, 2015Observed: 3818.23 ft at 7:15PM May 23, 2015Observed: 3818.22 ft at 7:30PM May 23, 2015Observed: 3818.22 ft at 7:45PM May 23, 2015Observed: 3818.22 ft at 8:00PM May 23, 2015Observed: 3818.22 ft at 8:15PM May 23, 2015Observed: 3818.22 ft at 8:30PM May 23, 2015Observed: 3818.22 ft at 8:45PM May 23, 2015Observed: 3818.22 ft at 9:00PM May 23, 2015Observed: 3818.22 ft at 9:15PM May 23, 2015Observed: 3818.23 ft at 9:30PM May 23, 2015Observed: 3818.23 ft at 9:45PM May 23, 2015Observed: 3818.22 ft at 10:00PM May 23, 2015Observed: 3818.22 ft at 10:15PM May 23, 2015HVDM8(plotting HPIRG) Graph Created (11:05PM May 23, 2015)ObservedLatest observed value: 3818.22 ft at 10:15 PM MDT 23-May-2015.
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Tabular Data (UTC)
Tabular Data (MDT)
XML Data
RSS Files
Datum: Not Available
Metadata
NOTE: Forecasts are not available for the Missouri River at Helena Valley Reservoir. Only observed stages are available for this point.
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Flood Categories (in feet)
Major Flood Stage: 0
Moderate Flood Stage: 0
Flood Stage: 0
Action Stage: 3820
Low Stage (in feet): 0

Historic Crests
Currently none available.

Recent Crests
Currently none available.

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.
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Latitude: 46.638056° N, Longitude: 111.882222° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft Not Available Interpreting hydrographs and NWS watch, warnings, and forecasts, and inundation maps
Vertical Datum Elevation
(gauge height = 0)
Elevation
(gauge height = flood stage)
Elevation information source
NAVD88 Not Available Not Available Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps
NGVD 29 Not Available Not Available Older USGS topographic maps, NGVD29 benchmarks
MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks
Other 0 ft 0 ft  
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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
Great Falls Weather Forecast Office
5324 Tri-Hill Frontage Rd
Great Falls, MT 59404-4933
(406) 453-2081
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Page last modified: 12-Feb-2015 9:34 PM
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