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Hydrograph River at a Glance Download
Reservoirs at Grassy Lake Reservoir Pool (ft)Highest Observation: 7197.86 ft at 3:45AM Aug 10, 2018Observed: 7197.85 ft at 4:00AM Aug 10, 2018Observed: 7197.85 ft at 4:15AM Aug 10, 2018Observed: 7197.84 ft at 4:30AM Aug 10, 2018Observed: 7197.84 ft at 4:45AM Aug 10, 2018Observed: 7197.84 ft at 5:00AM Aug 10, 2018Observed: 7197.83 ft at 5:15AM Aug 10, 2018Observed: 7197.83 ft at 5:30AM Aug 10, 2018Observed: 7197.83 ft at 5:45AM Aug 10, 2018Observed: 7197.82 ft at 6:00AM Aug 10, 2018Observed: 7197.81 ft at 6:15AM Aug 10, 2018Observed: 7197.81 ft at 6:30AM Aug 10, 2018Observed: 7197.81 ft at 6:45AM Aug 10, 2018Observed: 7197.8 ft at 7:00AM Aug 10, 2018Observed: 7197.8 ft at 7:15AM Aug 10, 2018Observed: 7197.8 ft at 7:30AM Aug 10, 2018Observed: 7197.79 ft at 7:45AM Aug 10, 2018Observed: 7197.79 ft at 8:00AM Aug 10, 2018Observed: 7197.79 ft at 8:15AM Aug 10, 2018Observed: 7197.78 ft at 8:30AM Aug 10, 2018Observed: 7197.78 ft at 8:45AM Aug 10, 2018Observed: 7197.77 ft at 9:00AM Aug 10, 2018Observed: 7197.77 ft at 9:15AM Aug 10, 2018Observed: 7197.77 ft at 9:30AM Aug 10, 2018Observed: 7197.77 ft at 9:45AM Aug 10, 2018Observed: 7197.77 ft at 10:00AM Aug 10, 2018Observed: 7197.77 ft at 10:15AM Aug 10, 2018Observed: 7197.77 ft at 10:30AM Aug 10, 2018Observed: 7197.77 ft at 10:45AM Aug 10, 2018Observed: 7197.77 ft at 11:00AM Aug 10, 2018Observed: 7197.77 ft at 11:15AM Aug 10, 2018Observed: 7197.77 ft at 11:30AM Aug 10, 2018Observed: 7197.77 ft at 11:45AM Aug 10, 2018Observed: 7197.77 ft at 12:00PM Aug 10, 2018Observed: 7197.77 ft at 12:15PM Aug 10, 2018Observed: 7197.77 ft at 12:30PM Aug 10, 2018Observed: 7197.77 ft at 12:45PM Aug 10, 2018Observed: 7197.77 ft at 1:00PM Aug 10, 2018Observed: 7197.77 ft at 1:15PM Aug 10, 2018Observed: 7197.77 ft at 1:30PM Aug 10, 2018Observed: 7197.77 ft at 1:45PM Aug 10, 2018Observed: 7197.77 ft at 2:00PM Aug 10, 2018Observed: 7197.78 ft at 2:15PM Aug 10, 2018Observed: 7197.78 ft at 2:30PM Aug 10, 2018Observed: 7197.78 ft at 2:45PM Aug 10, 2018Observed: 7197.78 ft at 3:00PM Aug 10, 2018Observed: 7197.78 ft at 3:15PM Aug 10, 2018Observed: 7197.78 ft at 3:30PM Aug 10, 2018Observed: 7197.77 ft at 3:45PM Aug 10, 2018Observed: 7197.77 ft at 4:00PM Aug 10, 2018Observed: 7197.77 ft at 4:15PM Aug 10, 2018Observed: 7197.78 ft at 4:30PM Aug 10, 2018Observed: 7197.78 ft at 4:45PM Aug 10, 2018Observed: 7197.78 ft at 5:00PM Aug 10, 2018Observed: 7197.78 ft at 5:15PM Aug 10, 2018Observed: 7197.78 ft at 5:30PM Aug 10, 2018Observed: 7197.78 ft at 5:45PM Aug 10, 2018Observed: 7197.78 ft at 6:00PM Aug 10, 2018Observed: 7197.78 ft at 6:15PM Aug 10, 2018Observed: 7197.78 ft at 6:30PM Aug 10, 2018Observed: 7197.78 ft at 6:45PM Aug 10, 2018Observed: 7197.78 ft at 7:00PM Aug 10, 2018Observed: 7197.78 ft at 7:15PM Aug 10, 2018Observed: 7197.78 ft at 7:30PM Aug 10, 2018Observed: 7197.78 ft at 7:45PM Aug 10, 2018Observed: 7197.78 ft at 8:00PM Aug 10, 2018Observed: 7197.78 ft at 8:15PM Aug 10, 2018Observed: 7197.78 ft at 8:30PM Aug 10, 2018Observed: 7197.78 ft at 8:45PM Aug 10, 2018Observed: 7197.78 ft at 9:00PM Aug 10, 2018Observed: 7197.78 ft at 9:15PM Aug 10, 2018Observed: 7197.78 ft at 9:30PM Aug 10, 2018Observed: 7197.78 ft at 9:45PM Aug 10, 2018Observed: 7197.78 ft at 10:00PM Aug 10, 2018Observed: 7197.78 ft at 10:15PM Aug 10, 2018Observed: 7197.77 ft at 10:30PM Aug 10, 2018Observed: 7197.77 ft at 10:45PM Aug 10, 2018Observed: 7197.77 ft at 11:00PM Aug 10, 2018Observed: 7197.77 ft at 11:15PM Aug 10, 2018Observed: 7197.77 ft at 11:30PM Aug 10, 2018Observed: 7197.77 ft at 11:45PM Aug 10, 2018Observed: 7197.76 ft at 12:00AM Aug 11, 2018Observed: 7197.76 ft at 12:15AM Aug 11, 2018Observed: 7197.77 ft at 12:30AM Aug 11, 2018Observed: 7197.76 ft at 12:45AM Aug 11, 2018Observed: 7197.76 ft at 1:00AM Aug 11, 2018Observed: 7197.76 ft at 1:15AM Aug 11, 2018Observed: 7197.76 ft at 1:30AM Aug 11, 2018Observed: 7197.76 ft at 1:45AM Aug 11, 2018Observed: 7197.76 ft at 2:00AM Aug 11, 2018Observed: 7197.76 ft at 2:15AM Aug 11, 2018Observed: 7197.76 ft at 2:30AM Aug 11, 2018Observed: 7197.76 ft at 2:45AM Aug 11, 2018Observed: 7197.76 ft at 3:00AM Aug 11, 2018Observed: 7197.76 ft at 3:15AM Aug 11, 2018Observed: 7197.77 ft at 3:30AM Aug 11, 2018Observed: 7197.76 ft at 3:45AM Aug 11, 2018Observed: 7197.76 ft at 4:00AM Aug 11, 2018Observed: 7197.77 ft at 4:15AM Aug 11, 2018Observed: 7197.77 ft at 4:30AM Aug 11, 2018Observed: 7197.77 ft at 4:45AM Aug 11, 2018Observed: 7197.77 ft at 5:00AM Aug 11, 2018Observed: 7197.77 ft at 5:15AM Aug 11, 2018Observed: 7197.77 ft at 5:30AM Aug 11, 2018Observed: 7197.76 ft at 5:45AM Aug 11, 2018Observed: 7197.77 ft at 6:00AM Aug 11, 2018Observed: 7197.77 ft at 6:15AM Aug 11, 2018Observed: 7197.76 ft at 6:30AM Aug 11, 2018Observed: 7197.77 ft at 6:45AM Aug 11, 2018Observed: 7197.76 ft at 7:00AM Aug 11, 2018Observed: 7197.77 ft at 7:15AM Aug 11, 2018Observed: 7197.76 ft at 7:30AM Aug 11, 2018Observed: 7197.76 ft at 7:45AM Aug 11, 2018Observed: 7197.76 ft at 8:00AM Aug 11, 2018Observed: 7197.77 ft at 8:15AM Aug 11, 2018Observed: 7197.77 ft at 8:30AM Aug 11, 2018Observed: 7197.77 ft at 8:45AM Aug 11, 2018Observed: 7197.77 ft at 9:00AM Aug 11, 2018Observed: 7197.77 ft at 9:15AM Aug 11, 2018Observed: 7197.77 ft at 9:30AM Aug 11, 2018Observed: 7197.77 ft at 9:31AM Aug 11, 2018Observed: 7197.78 ft at 9:45AM Aug 11, 2018Observed: 7197.78 ft at 9:46AM Aug 11, 2018Observed: 7197.78 ft at 10:00AM Aug 11, 2018Observed: 7197.78 ft at 10:01AM Aug 11, 2018Observed: 7197.78 ft at 10:15AM Aug 11, 2018Observed: 7197.78 ft at 10:30AM Aug 11, 2018Observed: 7197.78 ft at 10:45AM Aug 11, 2018Observed: 7197.78 ft at 11:00AM Aug 11, 2018Observed: 7197.79 ft at 11:15AM Aug 11, 2018Observed: 7197.79 ft at 11:30AM Aug 11, 2018Observed: 7197.79 ft at 11:45AM Aug 11, 2018Observed: 7197.79 ft at 12:00PM Aug 11, 2018Observed: 7197.79 ft at 12:15PM Aug 11, 2018Observed: 7197.79 ft at 12:30PM Aug 11, 2018Observed: 7197.79 ft at 12:45PM Aug 11, 2018Observed: 7197.79 ft at 1:00PM Aug 11, 2018Observed: 7197.79 ft at 1:15PM Aug 11, 2018Observed: 7197.79 ft at 1:30PM Aug 11, 2018Observed: 7197.79 ft at 1:45PM Aug 11, 2018Observed: 7197.78 ft at 2:00PM Aug 11, 2018Observed: 7197.79 ft at 2:15PM Aug 11, 2018Observed: 7197.79 ft at 2:30PM Aug 11, 2018Observed: 7197.79 ft at 2:45PM Aug 11, 2018Observed: 7197.79 ft at 3:00PM Aug 11, 2018Observed: 7197.79 ft at 3:15PM Aug 11, 2018Observed: 7197.79 ft at 3:30PM Aug 11, 2018Observed: 7197.79 ft at 3:45PM Aug 11, 2018Observed: 7197.79 ft at 4:00PM Aug 11, 2018Observed: 7197.79 ft at 4:15PM Aug 11, 2018Observed: 7197.79 ft at 4:30PM Aug 11, 2018Observed: 7197.79 ft at 4:45PM Aug 11, 2018Observed: 7197.78 ft at 5:00PM Aug 11, 2018Observed: 7197.79 ft at 5:15PM Aug 11, 2018Observed: 7197.79 ft at 5:30PM Aug 11, 2018Observed: 7197.79 ft at 5:45PM Aug 11, 2018Observed: 7197.79 ft at 6:00PM Aug 11, 2018Observed: 7197.79 ft at 6:15PM Aug 11, 2018Observed: 7197.79 ft at 6:30PM Aug 11, 2018Observed: 7197.79 ft at 6:45PM Aug 11, 2018Observed: 7197.79 ft at 7:00PM Aug 11, 2018Observed: 7197.79 ft at 7:15PM Aug 11, 2018Observed: 7197.79 ft at 7:30PM Aug 11, 2018Observed: 7197.79 ft at 7:45PM Aug 11, 2018Observed: 7197.79 ft at 8:00PM Aug 11, 2018Observed: 7197.79 ft at 8:15PM Aug 11, 2018Observed: 7197.79 ft at 8:30PM Aug 11, 2018Observed: 7197.79 ft at 8:45PM Aug 11, 2018Observed: 7197.79 ft at 9:00PM Aug 11, 2018Observed: 7197.79 ft at 9:15PM Aug 11, 2018Observed: 7197.79 ft at 9:30PM Aug 11, 2018Observed: 7197.79 ft at 9:45PM Aug 11, 2018Observed: 7197.79 ft at 10:00PM Aug 11, 2018Observed: 7197.78 ft at 10:15PM Aug 11, 2018Observed: 7197.78 ft at 10:30PM Aug 11, 2018Observed: 7197.78 ft at 10:45PM Aug 11, 2018Observed: 7197.78 ft at 11:00PM Aug 11, 2018Observed: 7197.78 ft at 11:15PM Aug 11, 2018Observed: 7197.78 ft at 11:30PM Aug 11, 2018Observed: 7197.78 ft at 11:45PM Aug 11, 2018Observed: 7197.78 ft at 12:00AM Aug 12, 2018Observed: 7197.77 ft at 12:15AM Aug 12, 2018Observed: 7197.77 ft at 12:30AM Aug 12, 2018Observed: 7197.77 ft at 12:45AM Aug 12, 2018Observed: 7197.78 ft at 1:00AM Aug 12, 2018Observed: 7197.78 ft at 1:15AM Aug 12, 2018Observed: 7197.78 ft at 1:30AM Aug 12, 2018Observed: 7197.77 ft at 1:45AM Aug 12, 2018Observed: 7197.77 ft at 2:00AM Aug 12, 2018Observed: 7197.77 ft at 2:15AM Aug 12, 2018Observed: 7197.78 ft at 2:30AM Aug 12, 2018Observed: 7197.78 ft at 2:45AM Aug 12, 2018Observed: 7197.78 ft at 3:00AM Aug 12, 2018Observed: 7197.78 ft at 3:15AM Aug 12, 2018Observed: 7197.78 ft at 3:30AM Aug 12, 2018Observed: 7197.78 ft at 3:45AM Aug 12, 2018Observed: 7197.78 ft at 4:00AM Aug 12, 2018Observed: 7197.78 ft at 4:15AM Aug 12, 2018Observed: 7197.78 ft at 4:30AM Aug 12, 2018Observed: 7197.77 ft at 4:45AM Aug 12, 2018Observed: 7197.78 ft at 5:00AM Aug 12, 2018Observed: 7197.78 ft at 5:15AM Aug 12, 2018Observed: 7197.78 ft at 5:30AM Aug 12, 2018Observed: 7197.78 ft at 5:45AM Aug 12, 2018Observed: 7197.78 ft at 6:00AM Aug 12, 2018Observed: 7197.78 ft at 6:15AM Aug 12, 2018Observed: 7197.78 ft at 6:30AM Aug 12, 2018Observed: 7197.78 ft at 6:45AM Aug 12, 2018Observed: 7197.78 ft at 7:00AM Aug 12, 2018Observed: 7197.78 ft at 7:15AM Aug 12, 2018Observed: 7197.77 ft at 7:30AM Aug 12, 2018Observed: 7197.78 ft at 7:45AM Aug 12, 2018Observed: 7197.78 ft at 8:00AM Aug 12, 2018Observed: 7197.78 ft at 8:15AM Aug 12, 2018Observed: 7197.78 ft at 8:30AM Aug 12, 2018Observed: 7197.79 ft at 8:45AM Aug 12, 2018Observed: 7197.79 ft at 9:00AM Aug 12, 2018Observed: 7197.79 ft at 9:15AM Aug 12, 2018Observed: 7197.79 ft at 9:30AM Aug 12, 2018Observed: 7197.79 ft at 9:45AM Aug 12, 2018Observed: 7197.79 ft at 10:00AM Aug 12, 2018Observed: 7197.79 ft at 10:15AM Aug 12, 2018Observed: 7197.79 ft at 10:30AM Aug 12, 2018Observed: 7197.79 ft at 10:45AM Aug 12, 2018Observed: 7197.8 ft at 11:00AM Aug 12, 2018Observed: 7197.79 ft at 11:15AM Aug 12, 2018Observed: 7197.79 ft at 11:30AM Aug 12, 2018Observed: 7197.8 ft at 11:45AM Aug 12, 2018Observed: 7197.8 ft at 12:00PM Aug 12, 2018Observed: 7197.8 ft at 12:15PM Aug 12, 2018Observed: 7197.8 ft at 12:30PM Aug 12, 2018Observed: 7197.8 ft at 12:45PM Aug 12, 2018Observed: 7197.79 ft at 1:00PM Aug 12, 2018Observed: 7197.8 ft at 1:15PM Aug 12, 2018Observed: 7197.8 ft at 1:30PM Aug 12, 2018Observed: 7197.79 ft at 1:45PM Aug 12, 2018Observed: 7197.8 ft at 2:00PM Aug 12, 2018Observed: 7197.8 ft at 2:15PM Aug 12, 2018Observed: 7197.8 ft at 2:30PM Aug 12, 2018Observed: 7197.79 ft at 2:45PM Aug 12, 2018Observed: 7197.79 ft at 3:00PM Aug 12, 2018Observed: 7197.79 ft at 3:15PM Aug 12, 2018Observed: 7197.8 ft at 3:30PM Aug 12, 2018Observed: 7197.8 ft at 3:45PM Aug 12, 2018Observed: 7197.8 ft at 4:00PM Aug 12, 2018Observed: 7197.8 ft at 4:15PM Aug 12, 2018Observed: 7197.79 ft at 4:30PM Aug 12, 2018Observed: 7197.8 ft at 4:45PM Aug 12, 2018Observed: 7197.79 ft at 5:00PM Aug 12, 2018Observed: 7197.79 ft at 5:15PM Aug 12, 2018Observed: 7197.8 ft at 5:30PM Aug 12, 2018Observed: 7197.8 ft at 5:45PM Aug 12, 2018Observed: 7197.8 ft at 6:00PM Aug 12, 2018Observed: 7197.8 ft at 6:15PM Aug 12, 2018Observed: 7197.8 ft at 6:30PM Aug 12, 2018Observed: 7197.8 ft at 6:45PM Aug 12, 2018Observed: 7197.8 ft at 7:00PM Aug 12, 2018Observed: 7197.8 ft at 7:15PM Aug 12, 2018Observed: 7197.8 ft at 7:30PM Aug 12, 2018Observed: 7197.81 ft at 7:45PM Aug 12, 2018Observed: 7197.8 ft at 8:00PM Aug 12, 2018Observed: 7197.8 ft at 8:15PM Aug 12, 2018Observed: 7197.8 ft at 8:30PM Aug 12, 2018Observed: 7197.8 ft at 8:45PM Aug 12, 2018Observed: 7197.81 ft at 9:00PM Aug 12, 2018Observed: 7197.8 ft at 9:15PM Aug 12, 2018Observed: 7197.8 ft at 9:30PM Aug 12, 2018Observed: 7197.8 ft at 9:31PM Aug 12, 2018Observed: 7197.8 ft at 9:45PM Aug 12, 2018Observed: 7197.8 ft at 9:46PM Aug 12, 2018Observed: 7197.79 ft at 10:00PM Aug 12, 2018Observed: 7197.79 ft at 10:01PM Aug 12, 2018Observed: 7197.79 ft at 10:15PM Aug 12, 2018Observed: 7197.79 ft at 10:30PM Aug 12, 2018Observed: 7197.79 ft at 10:45PM Aug 12, 2018Observed: 7197.79 ft at 11:00PM Aug 12, 2018Observed: 7197.79 ft at 11:15PM Aug 12, 2018Observed: 7197.79 ft at 11:30PM Aug 12, 2018Observed: 7197.79 ft at 11:45PM Aug 12, 2018Observed: 7197.79 ft at 12:00AM Aug 13, 2018Observed: 7197.79 ft at 12:15AM Aug 13, 2018Observed: 7197.79 ft at 12:30AM Aug 13, 2018Observed: 7197.79 ft at 12:45AM Aug 13, 2018Observed: 7197.79 ft at 1:00AM Aug 13, 2018Observed: 7197.79 ft at 1:15AM Aug 13, 2018Observed: 7197.79 ft at 1:30AM Aug 13, 2018Observed: 7197.79 ft at 1:45AM Aug 13, 2018Observed: 7197.79 ft at 2:00AM Aug 13, 2018Observed: 7197.79 ft at 2:15AM Aug 13, 2018Observed: 7197.79 ft at 2:30AM Aug 13, 2018Observed: 7197.79 ft at 2:45AM Aug 13, 2018Observed: 7197.79 ft at 3:00AM Aug 13, 2018Observed: 7197.79 ft at 3:15AM Aug 13, 2018Observed: 7197.79 ft at 3:30AM Aug 13, 2018Observed: 7197.79 ft at 3:45AM Aug 13, 2018Observed: 7197.79 ft at 4:00AM Aug 13, 2018Observed: 7197.79 ft at 4:15AM Aug 13, 2018Observed: 7197.79 ft at 4:30AM Aug 13, 2018Observed: 7197.79 ft at 4:45AM Aug 13, 2018Observed: 7197.79 ft at 5:00AM Aug 13, 2018Observed: 7197.79 ft at 5:15AM Aug 13, 2018Observed: 7197.79 ft at 5:30AM Aug 13, 2018Observed: 7197.79 ft at 5:45AM Aug 13, 2018Observed: 7197.79 ft at 6:00AM Aug 13, 2018Observed: 7197.79 ft at 6:15AM Aug 13, 2018Observed: 7197.79 ft at 6:30AM Aug 13, 2018Observed: 7197.79 ft at 6:45AM Aug 13, 2018Observed: 7197.79 ft at 7:00AM Aug 13, 2018Observed: 7197.79 ft at 7:15AM Aug 13, 2018Observed: 7197.79 ft at 7:30AM Aug 13, 2018Observed: 7197.8 ft at 7:45AM Aug 13, 2018Observed: 7197.79 ft at 8:00AM Aug 13, 2018Observed: 7197.79 ft at 8:15AM Aug 13, 2018Observed: 7197.79 ft at 8:30AM Aug 13, 2018Observed: 7197.79 ft at 8:45AM Aug 13, 2018Observed: 7197.79 ft at 9:00AM Aug 13, 2018Observed: 7197.8 ft at 9:15AM Aug 13, 2018Observed: 7197.8 ft at 9:30AM Aug 13, 2018Observed: 7197.8 ft at 9:45AM Aug 13, 2018Observed: 7197.8 ft at 10:00AM Aug 13, 2018Observed: 7197.8 ft at 10:15AM Aug 13, 2018Observed: 7197.8 ft at 10:30AM Aug 13, 2018Observed: 7197.81 ft at 10:45AM Aug 13, 2018Observed: 7197.82 ft at 11:00AM Aug 13, 2018Observed: 7197.82 ft at 11:15AM Aug 13, 2018Observed: 7197.82 ft at 11:30AM Aug 13, 2018Observed: 7197.81 ft at 11:45AM Aug 13, 2018Observed: 7197.82 ft at 12:00PM Aug 13, 2018Observed: 7197.81 ft at 12:15PM Aug 13, 2018Observed: 7197.81 ft at 12:30PM Aug 13, 2018Observed: 7197.81 ft at 12:45PM Aug 13, 2018Observed: 7197.8 ft at 1:00PM Aug 13, 2018Observed: 7197.81 ft at 1:15PM Aug 13, 2018Observed: 7197.8 ft at 1:30PM Aug 13, 2018Observed: 7197.81 ft at 1:45PM Aug 13, 2018Observed: 7197.81 ft at 2:00PM Aug 13, 2018Observed: 7197.81 ft at 2:15PM Aug 13, 2018Observed: 7197.81 ft at 2:30PM Aug 13, 2018Observed: 7197.81 ft at 2:45PM Aug 13, 2018Observed: 7197.81 ft at 3:00PM Aug 13, 2018Observed: 7197.82 ft at 3:15PM Aug 13, 2018Observed: 7197.82 ft at 3:30PM Aug 13, 2018Observed: 7197.82 ft at 3:45PM Aug 13, 2018Observed: 7197.82 ft at 4:00PM Aug 13, 2018Observed: 7197.82 ft at 4:15PM Aug 13, 2018Observed: 7197.82 ft at 4:30PM Aug 13, 2018Observed: 7197.82 ft at 4:45PM Aug 13, 2018Observed: 7197.81 ft at 5:00PM Aug 13, 2018Observed: 7197.82 ft at 5:15PM Aug 13, 2018Observed: 7197.82 ft at 5:30PM Aug 13, 2018Observed: 7197.81 ft at 5:45PM Aug 13, 2018Observed: 7197.81 ft at 6:00PM Aug 13, 2018Observed: 7197.81 ft at 6:15PM Aug 13, 2018Observed: 7197.82 ft at 6:30PM Aug 13, 2018Observed: 7197.81 ft at 6:45PM Aug 13, 2018Observed: 7197.82 ft at 7:00PM Aug 13, 2018Observed: 7197.81 ft at 7:15PM Aug 13, 2018Observed: 7197.82 ft at 7:30PM Aug 13, 2018Observed: 7197.81 ft at 7:45PM Aug 13, 2018Observed: 7197.82 ft at 8:00PM Aug 13, 2018Observed: 7197.82 ft at 8:15PM Aug 13, 2018Observed: 7197.82 ft at 8:30PM Aug 13, 2018Observed: 7197.81 ft at 8:45PM Aug 13, 2018Observed: 7197.81 ft at 9:00PM Aug 13, 2018Observed: 7197.81 ft at 9:15PM Aug 13, 2018Observed: 7197.81 ft at 9:30PM Aug 13, 2018Observed: 7197.81 ft at 9:45PM Aug 13, 2018Observed: 7197.81 ft at 10:00PM Aug 13, 2018Observed: 7197.81 ft at 10:15PM Aug 13, 2018Observed: 7197.81 ft at 10:30PM Aug 13, 2018Observed: 7197.81 ft at 10:45PM Aug 13, 2018Observed: 7197.81 ft at 11:00PM Aug 13, 2018Observed: 7197.8 ft at 11:15PM Aug 13, 2018Observed: 7197.8 ft at 11:30PM Aug 13, 2018Observed: 7197.8 ft at 11:45PM Aug 13, 2018Observed: 7197.8 ft at 12:00AM Aug 14, 2018Observed: 7197.8 ft at 12:15AM Aug 14, 2018Observed: 7197.8 ft at 12:30AM Aug 14, 2018Observed: 7197.8 ft at 12:45AM Aug 14, 2018Observed: 7197.8 ft at 1:00AM Aug 14, 2018Observed: 7197.8 ft at 1:15AM Aug 14, 2018Observed: 7197.8 ft at 1:30AM Aug 14, 2018Observed: 7197.8 ft at 1:45AM Aug 14, 2018Observed: 7197.81 ft at 2:00AM Aug 14, 2018Observed: 7197.81 ft at 2:15AM Aug 14, 2018Observed: 7197.8 ft at 2:30AM Aug 14, 2018Observed: 7197.8 ft at 2:45AM Aug 14, 2018Observed: 7197.8 ft at 3:00AM Aug 14, 2018Observed: 7197.8 ft at 3:15AM Aug 14, 2018Observed: 7197.8 ft at 3:30AM Aug 14, 2018Observed: 7197.8 ft at 3:45AM Aug 14, 2018Observed: 7197.81 ft at 4:00AM Aug 14, 2018Observed: 7197.81 ft at 4:15AM Aug 14, 2018Observed: 7197.8 ft at 4:30AM Aug 14, 2018Observed: 7197.8 ft at 4:45AM Aug 14, 2018Observed: 7197.8 ft at 5:00AM Aug 14, 2018Observed: 7197.8 ft at 5:15AM Aug 14, 2018Observed: 7197.8 ft at 5:30AM Aug 14, 2018Observed: 7197.81 ft at 5:45AM Aug 14, 2018Observed: 7197.81 ft at 6:00AM Aug 14, 2018Observed: 7197.81 ft at 6:15AM Aug 14, 2018Observed: 7197.81 ft at 6:30AM Aug 14, 2018Observed: 7197.8 ft at 6:45AM Aug 14, 2018Observed: 7197.8 ft at 7:00AM Aug 14, 2018Observed: 7197.81 ft at 7:15AM Aug 14, 2018Observed: 7197.81 ft at 7:30AM Aug 14, 2018Observed: 7197.81 ft at 7:45AM Aug 14, 2018Observed: 7197.81 ft at 8:00AM Aug 14, 2018Observed: 7197.81 ft at 8:15AM Aug 14, 2018Observed: 7197.81 ft at 8:30AM Aug 14, 2018Observed: 7197.81 ft at 8:45AM Aug 14, 2018Observed: 7197.81 ft at 9:00AM Aug 14, 2018Observed: 7197.81 ft at 9:15AM Aug 14, 2018Observed: 7197.81 ft at 9:30AM Aug 14, 2018Observed: 7197.81 ft at 9:31AM Aug 14, 2018Observed: 7197.81 ft at 9:45AM Aug 14, 2018Observed: 7197.81 ft at 9:46AM Aug 14, 2018Observed: 7197.81 ft at 10:00AM Aug 14, 2018Observed: 7197.81 ft at 10:01AM Aug 14, 2018Observed: 7197.81 ft at 10:15AM Aug 14, 2018Observed: 7197.81 ft at 10:30AM Aug 14, 2018Observed: 7197.81 ft at 10:45AM Aug 14, 2018Observed: 7197.82 ft at 11:00AM Aug 14, 2018Observed: 7197.82 ft at 11:15AM Aug 14, 2018Observed: 7197.82 ft at 11:30AM Aug 14, 2018Observed: 7197.81 ft at 11:45AM Aug 14, 2018Observed: 7197.82 ft at 12:00PM Aug 14, 2018Observed: 7197.82 ft at 12:15PM Aug 14, 2018Observed: 7197.82 ft at 12:30PM Aug 14, 2018Observed: 7197.82 ft at 12:45PM Aug 14, 2018Observed: 7197.82 ft at 1:00PM Aug 14, 2018Observed: 7197.82 ft at 1:15PM Aug 14, 2018Observed: 7197.82 ft at 1:30PM Aug 14, 2018Observed: 7197.81 ft at 1:45PM Aug 14, 2018Observed: 7197.82 ft at 2:00PM Aug 14, 2018Observed: 7197.82 ft at 2:15PM Aug 14, 2018Observed: 7197.82 ft at 2:30PM Aug 14, 2018Observed: 7197.82 ft at 2:45PM Aug 14, 2018Observed: 7197.82 ft at 3:00PM Aug 14, 2018Observed: 7197.82 ft at 3:15PM Aug 14, 2018Observed: 7197.82 ft at 3:30PM Aug 14, 2018Observed: 7197.82 ft at 3:45PM Aug 14, 2018Observed: 7197.81 ft at 4:00PM Aug 14, 2018Observed: 7197.83 ft at 4:15PM Aug 14, 2018Observed: 7197.82 ft at 4:30PM Aug 14, 2018Observed: 7197.82 ft at 4:45PM Aug 14, 2018Observed: 7197.82 ft at 5:00PM Aug 14, 2018Observed: 7197.81 ft at 5:15PM Aug 14, 2018Observed: 7197.82 ft at 5:30PM Aug 14, 2018Observed: 7197.82 ft at 5:45PM Aug 14, 2018Observed: 7197.83 ft at 6:00PM Aug 14, 2018Observed: 7197.83 ft at 6:15PM Aug 14, 2018Observed: 7197.82 ft at 6:30PM Aug 14, 2018Observed: 7197.82 ft at 6:45PM Aug 14, 2018Observed: 7197.82 ft at 7:00PM Aug 14, 2018Observed: 7197.83 ft at 7:15PM Aug 14, 2018Observed: 7197.83 ft at 7:30PM Aug 14, 2018Observed: 7197.83 ft at 7:45PM Aug 14, 2018Observed: 7197.83 ft at 8:00PM Aug 14, 2018Observed: 7197.82 ft at 8:15PM Aug 14, 2018Observed: 7197.82 ft at 8:30PM Aug 14, 2018Observed: 7197.82 ft at 8:45PM Aug 14, 2018Observed: 7197.83 ft at 9:00PM Aug 14, 2018Observed: 7197.82 ft at 9:15PM Aug 14, 2018Observed: 7197.82 ft at 9:30PM Aug 14, 2018Observed: 7197.81 ft at 9:45PM Aug 14, 2018Observed: 7197.81 ft at 10:00PM Aug 14, 2018Observed: 7197.81 ft at 10:15PM Aug 14, 2018Observed: 7197.82 ft at 10:30PM Aug 14, 2018Observed: 7197.82 ft at 10:45PM Aug 14, 2018Observed: 7197.82 ft at 11:00PM Aug 14, 2018Observed: 7197.81 ft at 11:15PM Aug 14, 2018Observed: 7197.81 ft at 11:30PM Aug 14, 2018Observed: 7197.81 ft at 11:45PM Aug 14, 2018Observed: 7197.82 ft at 12:00AM Aug 15, 2018Observed: 7197.82 ft at 12:15AM Aug 15, 2018Observed: 7197.82 ft at 12:30AM Aug 15, 2018Observed: 7197.81 ft at 12:45AM Aug 15, 2018Observed: 7197.81 ft at 1:00AM Aug 15, 2018Observed: 7197.81 ft at 1:15AM Aug 15, 2018Observed: 7197.81 ft at 1:30AM Aug 15, 2018Observed: 7197.82 ft at 1:45AM Aug 15, 2018Observed: 7197.82 ft at 2:00AM Aug 15, 2018Observed: 7197.81 ft at 2:15AM Aug 15, 2018GRLW4(plotting HPIRG) Graph Created (3:34AM Aug 15, 2018)ObservedLatest observed value: 7197.81 ft at 2:15 AM MDT 15-Aug-2018. Flood Stage is 7212 ft
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Tabular Data (UTC)
Tabular Data (MDT)
XML Data
RSS Files
Datum: Not Available
Metadata
NOTE: Graphical forecasts are not available for the Reservoirs at Grassy Lake Reservoir. During times of high water, forecast crest information can be found in the text products.
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Flood Categories (in feet)
Major Flood Stage: 0
Moderate Flood Stage: 0
Flood Stage: 7212
Action Stage: 7210
Low Stage (in feet): -9999

Historic Crests
Currently none available.

Recent Crests
Currently none available.

Low Water Records
Currently none available.
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.
About This Location Collapse

Latitude: 44.129167° N, Longitude: 110.818056° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 7212 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 Not Available Not Available Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps
NGVD 29 Not Available Not Available Older USGS topographic maps, NGVD29 benchmarks
MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks
Other Not Available Not Available  
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The National Weather Service prepares its forecasts and other services in collaboration with agencies like the US Geological Survey, US Bureau of Reclamation, US Army Corps of Engineers, Natural Resource Conservation Service, National Park Service, ALERT Users Group, Bureau of Indian Affairs, and many state and local emergency managers across the country. For details, please click here.
NWS Information
National Weather Service
Riverton Weather Forecast Office
12744 West U.S. Highway 26
Riverton, WY 82501
(307) 857-3898
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Page last modified: 21-Dec-2016 5:19 PM
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