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Weather Forecast Office Sioux Falls, SD Missouri Basin River Forecast Center
Hydrograph River at a Glance Download Weekly Chance of
Exceeding Levels		 Chance of Exceeding Levels
During Entire Period
Big Sioux River at Akron Stage (ft)Flow (cfs)Observed: 7.71 ft at 1:45AM May 18, 2013Observed: 7.72 ft at 2:00AM May 18, 2013Observed: 7.72 ft at 2:15AM May 18, 2013Observed: 7.71 ft at 2:30AM May 18, 2013Observed: 7.72 ft at 2:45AM May 18, 2013Observed: 7.72 ft at 2:46AM May 18, 2013Observed: 7.71 ft at 3:00AM May 18, 2013Observed: 7.71 ft at 3:01AM May 18, 2013Observed: 7.71 ft at 3:15AM May 18, 2013Observed: 7.71 ft at 3:16AM May 18, 2013Observed: 7.71 ft at 3:30AM May 18, 2013Observed: 7.71 ft at 3:45AM May 18, 2013Observed: 7.71 ft at 4:00AM May 18, 2013Observed: 7.7 ft at 4:15AM May 18, 2013Observed: 7.71 ft at 4:30AM May 18, 2013Observed: 7.7 ft at 4:45AM May 18, 2013Observed: 7.7 ft at 5:00AM May 18, 2013Observed: 7.7 ft at 5:15AM May 18, 2013Observed: 7.7 ft at 5:30AM May 18, 2013Observed: 7.7 ft at 5:45AM May 18, 2013Observed: 7.69 ft at 6:00AM May 18, 2013Observed: 7.7 ft at 6:15AM May 18, 2013Observed: 7.69 ft at 6:30AM May 18, 2013Observed: 7.69 ft at 6:45AM May 18, 2013Observed: 7.69 ft at 7:00AM May 18, 2013Observed: 7.69 ft at 7:15AM May 18, 2013Observed: 7.69 ft at 7:30AM May 18, 2013Observed: 7.69 ft at 7:45AM May 18, 2013Observed: 7.69 ft at 8:00AM May 18, 2013Observed: 7.69 ft at 8:15AM May 18, 2013Observed: 7.68 ft at 8:30AM May 18, 2013Observed: 7.68 ft at 8:45AM May 18, 2013Observed: 7.67 ft at 9:00AM May 18, 2013Observed: 7.67 ft at 9:15AM May 18, 2013Observed: 7.67 ft at 9:30AM May 18, 2013Observed: 7.67 ft at 9:45AM May 18, 2013Observed: 7.67 ft at 10:00AM May 18, 2013Observed: 7.66 ft at 10:15AM May 18, 2013Observed: 7.66 ft at 10:30AM May 18, 2013Observed: 7.66 ft at 10:45AM May 18, 2013Observed: 7.66 ft at 10:46AM May 18, 2013Observed: 7.66 ft at 11:00AM May 18, 2013Observed: 7.66 ft at 11:01AM May 18, 2013Observed: 7.66 ft at 11:15AM May 18, 2013Observed: 7.66 ft at 11:16AM May 18, 2013Observed: 7.66 ft at 11:30AM May 18, 2013Observed: 7.66 ft at 11:45AM May 18, 2013Observed: 7.66 ft at 12:00PM May 18, 2013Observed: 7.66 ft at 12:15PM May 18, 2013Observed: 7.66 ft at 12:30PM May 18, 2013Observed: 7.65 ft at 12:45PM May 18, 2013Observed: 7.66 ft at 1:00PM May 18, 2013Observed: 7.64 ft at 1:15PM May 18, 2013Observed: 7.65 ft at 1:30PM May 18, 2013Observed: 7.65 ft at 1:45PM May 18, 2013Observed: 7.64 ft at 2:00PM May 18, 2013Observed: 7.65 ft at 2:15PM May 18, 2013Observed: 7.64 ft at 2:30PM May 18, 2013Observed: 7.64 ft at 2:45PM May 18, 2013Observed: 7.65 ft at 3:00PM May 18, 2013Observed: 7.64 ft at 3:15PM May 18, 2013Observed: 7.63 ft at 3:30PM May 18, 2013Observed: 7.64 ft at 3:45PM May 18, 2013Observed: 7.64 ft at 4:00PM May 18, 2013Observed: 7.64 ft at 4:15PM May 18, 2013Observed: 7.64 ft at 4:30PM May 18, 2013Observed: 7.64 ft at 4:45PM May 18, 2013Observed: 7.64 ft at 5:00PM May 18, 2013Observed: 7.63 ft at 5:15PM May 18, 2013Observed: 7.63 ft at 5:30PM May 18, 2013Observed: 7.64 ft at 5:45PM May 18, 2013Observed: 7.63 ft at 6:00PM May 18, 2013Observed: 7.64 ft at 6:15PM May 18, 2013Observed: 7.63 ft at 6:30PM May 18, 2013Observed: 7.64 ft at 6:45PM May 18, 2013Observed: 7.64 ft at 6:46PM May 18, 2013Observed: 7.63 ft at 7:00PM May 18, 2013Observed: 7.63 ft at 7:01PM May 18, 2013Observed: 7.64 ft at 7:15PM May 18, 2013Observed: 7.64 ft at 7:16PM May 18, 2013Observed: 7.64 ft at 7:30PM May 18, 2013Observed: 7.64 ft at 7:45PM May 18, 2013Observed: 7.64 ft at 8:00PM May 18, 2013Observed: 7.65 ft at 8:15PM May 18, 2013Observed: 7.64 ft at 8:30PM May 18, 2013Observed: 7.65 ft at 8:45PM May 18, 2013Observed: 7.65 ft at 9:00PM May 18, 2013Observed: 7.66 ft at 9:15PM May 18, 2013Observed: 7.66 ft at 9:30PM May 18, 2013Observed: 7.66 ft at 9:45PM May 18, 2013Observed: 7.66 ft at 10:00PM May 18, 2013Observed: 7.66 ft at 10:15PM May 18, 2013Observed: 7.66 ft at 10:30PM May 18, 2013Observed: 7.67 ft at 10:45PM May 18, 2013Observed: 7.67 ft at 11:00PM May 18, 2013Observed: 7.68 ft at 11:15PM May 18, 2013Observed: 7.67 ft at 11:30PM May 18, 2013Observed: 7.68 ft at 11:45PM May 18, 2013Observed: 7.68 ft at 12:00AM May 19, 2013Observed: 7.68 ft at 12:15AM May 19, 2013Observed: 7.68 ft at 12:30AM May 19, 2013Observed: 7.68 ft at 12:45AM May 19, 2013Observed: 7.69 ft at 1:00AM May 19, 2013Observed: 7.69 ft at 1:15AM May 19, 2013Observed: 7.7 ft at 1:30AM May 19, 2013Observed: 7.69 ft at 1:45AM May 19, 2013Observed: 7.7 ft at 2:00AM May 19, 2013Observed: 7.7 ft at 2:15AM May 19, 2013Observed: 7.7 ft at 2:30AM May 19, 2013Observed: 7.71 ft at 2:45AM May 19, 2013Observed: 7.71 ft at 2:46AM May 19, 2013Observed: 7.71 ft at 3:00AM May 19, 2013Observed: 7.71 ft at 3:01AM May 19, 2013Observed: 7.71 ft at 3:15AM May 19, 2013Observed: 7.71 ft at 3:16AM May 19, 2013Observed: 7.72 ft at 3:30AM May 19, 2013Observed: 7.72 ft at 3:45AM May 19, 2013Observed: 7.72 ft at 4:00AM May 19, 2013Observed: 7.73 ft at 4:15AM May 19, 2013Observed: 7.73 ft at 4:30AM May 19, 2013Observed: 7.73 ft at 4:45AM May 19, 2013Observed: 7.73 ft at 5:00AM May 19, 2013Observed: 7.73 ft at 5:15AM May 19, 2013Observed: 7.73 ft at 5:30AM May 19, 2013Observed: 7.73 ft at 5:45AM May 19, 2013Observed: 7.73 ft at 6:00AM May 19, 2013Observed: 7.73 ft at 6:15AM May 19, 2013Observed: 7.73 ft at 6:30AM May 19, 2013Highest Observation: 7.74 ft at 6:45AM May 19, 2013Highest Observation: 7.74 ft at 7:00AM May 19, 2013Observed: 7.73 ft at 7:15AM May 19, 2013Highest Observation: 7.74 ft at 7:30AM May 19, 2013Highest Observation: 7.74 ft at 7:45AM May 19, 2013Highest Observation: 7.74 ft at 8:00AM May 19, 2013Highest Observation: 7.74 ft at 8:15AM May 19, 2013Highest Observation: 7.74 ft at 8:30AM May 19, 2013Highest Observation: 7.74 ft at 8:45AM May 19, 2013Highest Observation: 7.74 ft at 9:00AM May 19, 2013Observed: 7.73 ft at 9:15AM May 19, 2013Observed: 7.73 ft at 9:30AM May 19, 2013Observed: 7.73 ft at 9:45AM May 19, 2013Observed: 7.73 ft at 10:00AM May 19, 2013Observed: 7.73 ft at 10:15AM May 19, 2013Observed: 7.73 ft at 10:30AM May 19, 2013Observed: 7.73 ft at 10:45AM May 19, 2013Observed: 7.73 ft at 10:46AM May 19, 2013Observed: 7.73 ft at 11:00AM May 19, 2013Observed: 7.73 ft at 11:01AM May 19, 2013Observed: 7.72 ft at 11:15AM May 19, 2013Observed: 7.72 ft at 11:16AM May 19, 2013Observed: 7.73 ft at 11:30AM May 19, 2013Observed: 7.73 ft at 11:45AM May 19, 2013Observed: 7.71 ft at 12:00PM May 19, 2013Observed: 7.72 ft at 12:15PM May 19, 2013Observed: 7.72 ft at 12:30PM May 19, 2013Observed: 7.72 ft at 12:45PM May 19, 2013Observed: 7.72 ft at 1:00PM May 19, 2013Observed: 7.71 ft at 1:15PM May 19, 2013Observed: 7.72 ft at 1:30PM May 19, 2013Observed: 7.72 ft at 1:45PM May 19, 2013Observed: 7.71 ft at 2:00PM May 19, 2013Observed: 7.71 ft at 2:15PM May 19, 2013Observed: 7.71 ft at 2:30PM May 19, 2013Observed: 7.71 ft at 2:45PM May 19, 2013Observed: 7.71 ft at 3:00PM May 19, 2013Observed: 7.7 ft at 3:15PM May 19, 2013Observed: 7.7 ft at 3:30PM May 19, 2013Observed: 7.7 ft at 3:45PM May 19, 2013Observed: 7.7 ft at 4:00PM May 19, 2013Observed: 7.7 ft at 4:15PM May 19, 2013Observed: 7.7 ft at 4:30PM May 19, 2013Observed: 7.69 ft at 4:45PM May 19, 2013Observed: 7.69 ft at 5:00PM May 19, 2013Observed: 7.69 ft at 5:15PM May 19, 2013Observed: 7.69 ft at 5:30PM May 19, 2013Observed: 7.68 ft at 5:45PM May 19, 2013Observed: 7.68 ft at 6:00PM May 19, 2013Observed: 7.68 ft at 6:15PM May 19, 2013Observed: 7.68 ft at 6:30PM May 19, 2013Observed: 7.68 ft at 6:45PM May 19, 2013Observed: 7.67 ft at 7:00PM May 19, 2013Observed: 7.67 ft at 7:15PM May 19, 2013Observed: 7.67 ft at 7:30PM May 19, 2013Observed: 7.67 ft at 7:45PM May 19, 2013Observed: 7.67 ft at 8:00PM May 19, 2013Observed: 7.67 ft at 8:15PM May 19, 2013Observed: 7.67 ft at 8:30PM May 19, 2013Observed: 7.67 ft at 8:45PM May 19, 2013Observed: 7.67 ft at 9:00PM May 19, 2013Observed: 7.66 ft at 9:15PM May 19, 2013Observed: 7.66 ft at 9:30PM May 19, 2013Observed: 7.66 ft at 9:45PM May 19, 2013Observed: 7.67 ft at 10:00PM May 19, 2013Observed: 7.66 ft at 10:15PM May 19, 2013Observed: 7.67 ft at 10:30PM May 19, 2013Observed: 7.67 ft at 10:45PM May 19, 2013Observed: 7.66 ft at 11:00PM May 19, 2013Observed: 7.66 ft at 11:15PM May 19, 2013Observed: 7.65 ft at 11:30PM May 19, 2013Observed: 7.65 ft at 11:45PM May 19, 2013Observed: 7.66 ft at 12:00AM May 20, 2013Observed: 7.65 ft at 12:15AM May 20, 2013Observed: 7.65 ft at 12:30AM May 20, 2013Observed: 7.65 ft at 12:45AM May 20, 2013Observed: 7.65 ft at 1:00AM May 20, 2013Observed: 7.65 ft at 1:15AM May 20, 2013Observed: 7.64 ft at 1:30AM May 20, 2013Observed: 7.65 ft at 1:45AM May 20, 2013Observed: 7.64 ft at 2:00AM May 20, 2013Observed: 7.63 ft at 2:15AM May 20, 2013Observed: 7.63 ft at 2:30AM May 20, 2013Observed: 7.63 ft at 2:45AM May 20, 2013Observed: 7.63 ft at 2:46AM May 20, 2013Observed: 7.63 ft at 3:00AM May 20, 2013Observed: 7.63 ft at 3:01AM May 20, 2013Observed: 7.63 ft at 3:15AM May 20, 2013Observed: 7.63 ft at 3:16AM May 20, 2013Observed: 7.63 ft at 3:30AM May 20, 2013Observed: 7.62 ft at 3:45AM May 20, 2013Observed: 7.62 ft at 4:00AM May 20, 2013Observed: 7.62 ft at 4:15AM May 20, 2013Observed: 7.62 ft at 4:30AM May 20, 2013Observed: 7.61 ft at 4:45AM May 20, 2013Observed: 7.61 ft at 5:00AM May 20, 2013Observed: 7.61 ft at 5:15AM May 20, 2013Observed: 7.6 ft at 5:30AM May 20, 2013Observed: 7.61 ft at 5:45AM May 20, 2013Observed: 7.61 ft at 6:00AM May 20, 2013Observed: 7.6 ft at 6:15AM May 20, 2013Observed: 7.61 ft at 6:30AM May 20, 2013Observed: 7.6 ft at 6:45AM May 20, 2013Observed: 7.6 ft at 7:00AM May 20, 2013Observed: 7.6 ft at 7:15AM May 20, 2013Observed: 7.6 ft at 7:30AM May 20, 2013Observed: 7.59 ft at 7:45AM May 20, 2013Observed: 7.59 ft at 8:00AM May 20, 2013Observed: 7.59 ft at 8:15AM May 20, 2013Observed: 7.59 ft at 8:30AM May 20, 2013Observed: 7.59 ft at 8:45AM May 20, 2013Observed: 7.59 ft at 9:00AM May 20, 2013Observed: 7.58 ft at 9:15AM May 20, 2013Observed: 7.58 ft at 9:30AM May 20, 2013Observed: 7.58 ft at 9:45AM May 20, 2013Observed: 7.59 ft at 10:00AM May 20, 2013Observed: 7.58 ft at 10:15AM May 20, 2013Observed: 7.58 ft at 10:30AM May 20, 2013Observed: 7.57 ft at 10:45AM May 20, 2013Observed: 7.58 ft at 11:00AM May 20, 2013Observed: 7.57 ft at 11:15AM May 20, 2013Observed: 7.57 ft at 11:30AM May 20, 2013Observed: 7.56 ft at 11:45AM May 20, 2013Observed: 7.56 ft at 12:00PM May 20, 2013Observed: 7.56 ft at 12:15PM May 20, 2013Observed: 7.57 ft at 12:30PM May 20, 2013Observed: 7.55 ft at 12:45PM May 20, 2013Observed: 7.56 ft at 1:00PM May 20, 2013Observed: 7.55 ft at 1:15PM May 20, 2013Observed: 7.55 ft at 1:30PM May 20, 2013Observed: 7.55 ft at 1:45PM May 20, 2013Observed: 7.55 ft at 2:00PM May 20, 2013Observed: 7.55 ft at 2:15PM May 20, 2013Observed: 7.55 ft at 2:30PM May 20, 2013Observed: 7.55 ft at 2:45PM May 20, 2013Observed: 7.55 ft at 3:00PM May 20, 2013Observed: 7.54 ft at 3:15PM May 20, 2013Observed: 7.55 ft at 3:30PM May 20, 2013Observed: 7.54 ft at 3:45PM May 20, 2013Observed: 7.54 ft at 4:00PM May 20, 2013Observed: 7.54 ft at 4:15PM May 20, 2013Observed: 7.54 ft at 4:30PM May 20, 2013Observed: 7.54 ft at 4:45PM May 20, 2013Observed: 7.55 ft at 5:00PM May 20, 2013Observed: 7.54 ft at 5:15PM May 20, 2013Observed: 7.54 ft at 5:30PM May 20, 2013Observed: 7.54 ft at 5:45PM May 20, 2013Observed: 7.54 ft at 6:00PM May 20, 2013Observed: 7.53 ft at 6:15PM May 20, 2013Observed: 7.53 ft at 6:30PM May 20, 2013Observed: 7.54 ft at 6:45PM May 20, 2013Observed: 7.54 ft at 6:46PM May 20, 2013Observed: 7.53 ft at 7:00PM May 20, 2013Observed: 7.53 ft at 7:01PM May 20, 2013Observed: 7.54 ft at 7:15PM May 20, 2013Observed: 7.54 ft at 7:16PM May 20, 2013Observed: 7.54 ft at 7:30PM May 20, 2013Observed: 7.53 ft at 7:45PM May 20, 2013Observed: 7.53 ft at 8:00PM May 20, 2013Observed: 7.53 ft at 8:15PM May 20, 2013Observed: 7.52 ft at 8:30PM May 20, 2013Observed: 7.53 ft at 8:45PM May 20, 2013Observed: 7.54 ft at 9:00PM May 20, 2013Observed: 7.54 ft at 9:15PM May 20, 2013Observed: 7.53 ft at 9:30PM May 20, 2013Observed: 7.54 ft at 9:45PM May 20, 2013Observed: 7.54 ft at 10:00PM May 20, 2013Observed: 7.54 ft at 10:15PM May 20, 2013Observed: 7.54 ft at 10:30PM May 20, 2013Observed: 7.54 ft at 10:45PM May 20, 2013Observed: 7.54 ft at 11:00PM May 20, 2013Observed: 7.52 ft at 11:15PM May 20, 2013Observed: 7.54 ft at 11:30PM May 20, 2013Observed: 7.53 ft at 11:45PM May 20, 2013Observed: 7.53 ft at 12:00AM May 21, 2013Observed: 7.54 ft at 1:15AM May 21, 2013Observed: 7.54 ft at 1:30AM May 21, 2013Observed: 7.54 ft at 1:45AM May 21, 2013Observed: 7.54 ft at 2:00AM May 21, 2013Observed: 7.53 ft at 2:15AM May 21, 2013Observed: 7.54 ft at 2:30AM May 21, 2013Observed: 7.54 ft at 2:45AM May 21, 2013Observed: 7.54 ft at 2:46AM May 21, 2013Observed: 7.54 ft at 3:00AM May 21, 2013Observed: 7.54 ft at 3:01AM May 21, 2013Observed: 7.53 ft at 3:15AM May 21, 2013Observed: 7.53 ft at 3:16AM May 21, 2013Observed: 7.53 ft at 3:30AM May 21, 2013Observed: 7.53 ft at 3:45AM May 21, 2013Observed: 7.54 ft at 4:00AM May 21, 2013Observed: 7.53 ft at 4:15AM May 21, 2013Observed: 7.53 ft at 4:30AM May 21, 2013Observed: 7.53 ft at 4:45AM May 21, 2013Observed: 7.53 ft at 5:00AM May 21, 2013Observed: 7.53 ft at 5:15AM May 21, 2013Observed: 7.53 ft at 5:30AM May 21, 2013Observed: 7.54 ft at 5:45AM May 21, 2013Observed: 7.53 ft at 6:00AM May 21, 2013Observed: 7.53 ft at 6:15AM May 21, 2013Observed: 7.53 ft at 6:30AM May 21, 2013Observed: 7.53 ft at 6:45AM May 21, 2013Observed: 7.53 ft at 7:00AM May 21, 2013Observed: 7.54 ft at 7:15AM May 21, 2013Observed: 7.54 ft at 7:30AM May 21, 2013Observed: 7.53 ft at 7:45AM May 21, 2013Observed: 7.54 ft at 8:00AM May 21, 2013Observed: 7.53 ft at 8:15AM May 21, 2013Observed: 7.54 ft at 8:30AM May 21, 2013Observed: 7.54 ft at 8:45AM May 21, 2013Observed: 7.53 ft at 9:00AM May 21, 2013Observed: 7.53 ft at 9:15AM May 21, 2013Observed: 7.53 ft at 9:30AM May 21, 2013Observed: 7.53 ft at 9:45AM May 21, 2013Observed: 7.54 ft at 10:00AM May 21, 2013Observed: 7.54 ft at 10:15AM May 21, 2013Observed: 7.53 ft at 10:30AM May 21, 2013Observed: 7.53 ft at 10:45AM May 21, 2013Observed: 7.53 ft at 11:00AM May 21, 2013Observed: 7.53 ft at 11:01AM May 21, 2013Observed: 7.53 ft at 11:15AM May 21, 2013Observed: 7.53 ft at 11:16AM May 21, 2013Observed: 7.53 ft at 11:30AM May 21, 2013Observed: 7.53 ft at 11:31AM May 21, 2013Observed: 7.52 ft at 11:45AM May 21, 2013Observed: 7.52 ft at 12:00PM May 21, 2013Observed: 7.52 ft at 12:15PM May 21, 2013Observed: 7.52 ft at 12:30PM May 21, 2013Observed: 7.52 ft at 12:45PM May 21, 2013Observed: 7.53 ft at 1:00PM May 21, 2013Observed: 7.52 ft at 1:15PM May 21, 2013Observed: 7.51 ft at 1:30PM May 21, 2013Observed: 7.52 ft at 1:45PM May 21, 2013Observed: 7.52 ft at 2:00PM May 21, 2013Observed: 7.52 ft at 2:15PM May 21, 2013Observed: 7.51 ft at 2:30PM May 21, 2013Observed: 7.51 ft at 2:45PM May 21, 2013Observed: 7.51 ft at 3:00PM May 21, 2013Observed: 7.51 ft at 3:15PM May 21, 2013Observed: 7.51 ft at 3:30PM May 21, 2013Observed: 7.5 ft at 3:45PM May 21, 2013Observed: 7.51 ft at 4:00PM May 21, 2013Observed: 7.5 ft at 4:15PM May 21, 2013Observed: 7.5 ft at 4:30PM May 21, 2013Observed: 7.51 ft at 4:45PM May 21, 2013Observed: 7.5 ft at 5:00PM May 21, 2013Observed: 7.5 ft at 5:15PM May 21, 2013Observed: 7.51 ft at 5:30PM May 21, 2013Observed: 7.5 ft at 5:45PM May 21, 2013Observed: 7.49 ft at 6:00PM May 21, 2013Observed: 7.49 ft at 6:15PM May 21, 2013Observed: 7.5 ft at 6:30PM May 21, 2013Observed: 7.48 ft at 6:45PM May 21, 2013Observed: 7.49 ft at 7:00PM May 21, 2013Observed: 7.49 ft at 7:01PM May 21, 2013Observed: 7.49 ft at 7:15PM May 21, 2013Observed: 7.49 ft at 7:16PM May 21, 2013Observed: 7.48 ft at 7:30PM May 21, 2013Observed: 7.48 ft at 7:31PM May 21, 2013Observed: 7.48 ft at 7:45PM May 21, 2013Observed: 7.48 ft at 8:00PM May 21, 2013Observed: 7.48 ft at 8:15PM May 21, 2013Observed: 7.48 ft at 8:30PM May 21, 2013Observed: 7.47 ft at 8:45PM May 21, 2013Observed: 7.48 ft at 9:00PM May 21, 2013Observed: 7.47 ft at 9:15PM May 21, 2013Observed: 7.46 ft at 9:30PM May 21, 2013Observed: 7.47 ft at 9:45PM May 21, 2013Observed: 7.47 ft at 10:00PM May 21, 2013Observed: 7.46 ft at 10:15PM May 21, 2013Observed: 7.46 ft at 10:30PM May 21, 2013Observed: 7.46 ft at 10:45PM May 21, 2013Observed: 7.46 ft at 11:00PM May 21, 2013Observed: 7.45 ft at 11:15PM May 21, 2013Observed: 7.45 ft at 11:30PM May 21, 2013Observed: 7.45 ft at 11:45PM May 21, 2013Observed: 7.45 ft at 12:00AM May 22, 2013Observed: 7.45 ft at 12:15AM May 22, 2013Observed: 7.45 ft at 12:30AM May 22, 2013Observed: 7.45 ft at 12:45AM May 22, 2013Observed: 7.44 ft at 1:00AM May 22, 2013Observed: 7.45 ft at 1:15AM May 22, 2013Observed: 7.45 ft at 1:30AM May 22, 2013Observed: 7.44 ft at 1:45AM May 22, 2013Observed: 7.44 ft at 2:00AM May 22, 2013Observed: 7.43 ft at 2:15AM May 22, 2013Observed: 7.43 ft at 2:30AM May 22, 2013Observed: 7.43 ft at 2:45AM May 22, 2013Observed: 7.43 ft at 3:00AM May 22, 2013Observed: 7.43 ft at 3:01AM May 22, 2013Observed: 7.43 ft at 3:15AM May 22, 2013Observed: 7.43 ft at 3:16AM May 22, 2013Observed: 7.42 ft at 3:30AM May 22, 2013Observed: 7.42 ft at 3:31AM May 22, 2013Observed: 7.43 ft at 3:45AM May 22, 2013Observed: 7.42 ft at 4:00AM May 22, 2013Observed: 7.42 ft at 4:15AM May 22, 2013Observed: 7.42 ft at 4:30AM May 22, 2013Observed: 7.41 ft at 4:45AM May 22, 2013Observed: 7.42 ft at 5:00AM May 22, 2013Observed: 7.42 ft at 5:15AM May 22, 2013Observed: 7.41 ft at 5:30AM May 22, 2013Observed: 7.41 ft at 5:45AM May 22, 2013Observed: 7.41 ft at 6:00AM May 22, 2013Observed: 7.41 ft at 6:15AM May 22, 2013Observed: 7.4 ft at 6:30AM May 22, 2013Observed: 7.4 ft at 6:45AM May 22, 2013Observed: 7.41 ft at 7:00AM May 22, 2013Observed: 7.4 ft at 7:15AM May 22, 2013Observed: 7.4 ft at 7:30AM May 22, 2013Observed: 7.41 ft at 7:45AM May 22, 2013Observed: 7.4 ft at 8:00AM May 22, 2013Observed: 7.4 ft at 8:15AM May 22, 2013Observed: 7.4 ft at 8:30AM May 22, 2013Observed: 7.39 ft at 8:45AM May 22, 2013Observed: 7.39 ft at 9:00AM May 22, 2013Observed: 7.39 ft at 9:15AM May 22, 2013Observed: 7.39 ft at 9:30AM May 22, 2013Observed: 7.38 ft at 9:45AM May 22, 2013Observed: 7.38 ft at 10:00AM May 22, 2013Observed: 7.38 ft at 10:15AM May 22, 2013Observed: 7.39 ft at 10:30AM May 22, 2013Observed: 7.39 ft at 10:45AM May 22, 2013Observed: 7.38 ft at 11:00AM May 22, 2013Observed: 7.38 ft at 11:01AM May 22, 2013Observed: 7.38 ft at 11:15AM May 22, 2013Observed: 7.38 ft at 11:16AM May 22, 2013Observed: 7.37 ft at 11:30AM May 22, 2013Observed: 7.37 ft at 11:31AM May 22, 2013Observed: 7.37 ft at 11:45AM May 22, 2013Observed: 7.37 ft at 12:00PM May 22, 2013Observed: 7.37 ft at 12:15PM May 22, 2013Observed: 7.36 ft at 12:30PM May 22, 2013Observed: 7.37 ft at 12:45PM May 22, 2013Observed: 7.36 ft at 1:00PM May 22, 2013Observed: 7.37 ft at 1:15PM May 22, 2013Observed: 7.36 ft at 1:30PM May 22, 2013Observed: 7.36 ft at 1:45PM May 22, 2013Observed: 7.37 ft at 2:00PM May 22, 2013Observed: 7.36 ft at 2:15PM May 22, 2013Observed: 7.36 ft at 2:30PM May 22, 2013Observed: 7.36 ft at 2:45PM May 22, 2013Observed: 7.36 ft at 3:00PM May 22, 2013Observed: 7.35 ft at 3:15PM May 22, 2013Observed: 7.36 ft at 3:30PM May 22, 2013Observed: 7.35 ft at 3:45PM May 22, 2013Observed: 7.35 ft at 4:00PM May 22, 2013Observed: 7.35 ft at 4:15PM May 22, 2013Observed: 7.34 ft at 4:30PM May 22, 2013Observed: 7.35 ft at 4:45PM May 22, 2013Observed: 7.34 ft at 5:00PM May 22, 2013Observed: 7.34 ft at 5:15PM May 22, 2013Observed: 7.34 ft at 5:30PM May 22, 2013Observed: 7.34 ft at 5:45PM May 22, 2013Observed: 7.34 ft at 6:00PM May 22, 2013Observed: 7.33 ft at 6:15PM May 22, 2013Observed: 7.33 ft at 6:30PM May 22, 2013Observed: 7.33 ft at 6:45PM May 22, 2013Observed: 7.33 ft at 7:00PM May 22, 2013Observed: 7.33 ft at 7:01PM May 22, 2013Observed: 7.33 ft at 7:15PM May 22, 2013Observed: 7.33 ft at 7:16PM May 22, 2013Observed: 7.33 ft at 7:30PM May 22, 2013Observed: 7.33 ft at 7:31PM May 22, 2013Observed: 7.33 ft at 7:45PM May 22, 2013Observed: 7.33 ft at 8:00PM May 22, 2013Observed: 7.32 ft at 8:15PM May 22, 2013Observed: 7.33 ft at 8:30PM May 22, 2013Observed: 7.33 ft at 8:45PM May 22, 2013Observed: 7.32 ft at 9:00PM May 22, 2013Observed: 7.32 ft at 9:15PM May 22, 2013Observed: 7.31 ft at 9:30PM May 22, 2013Observed: 7.31 ft at 9:45PM May 22, 2013Observed: 7.32 ft at 10:00PM May 22, 2013Observed: 7.31 ft at 10:15PM May 22, 2013Observed: 7.31 ft at 10:30PM May 22, 2013Observed: 7.31 ft at 10:45PM May 22, 2013Observed: 7.3 ft at 11:00PM May 22, 2013Observed: 7.31 ft at 11:15PM May 22, 2013Observed: 7.3 ft at 11:30PM May 22, 2013Observed: 7.3 ft at 11:45PM May 22, 2013Observed: 7.3 ft at 12:00AM May 23, 2013Observed: 7.29 ft at 12:15AM May 23, 2013Observed: 7.3 ft at 12:30AM May 23, 2013Observed: 7.29 ft at 12:45AM May 23, 2013Observed: 7.3 ft at 1:00AM May 23, 2013USGS--Water Resources of the United StatesAKRI4(plotting HGIRG) Graph Created (1:42AM May 23, 2013)ObservedLatest observed value: 7.3 ft at 1:00 AM CDT 23-May-2013. Flood Stage is 16 ft
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NOTE: River forecasts for this location take into account past precipitation and the precipitation amounts expected approximately 24 hours into the future from the forecast issuance time.

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

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Upstream Gauge - at Hawarden Upstream Gauge Downstream Gauge Downstream Gauge - at Sioux City
Flood Categories (in feet)
Major Flood Stage:20
Moderate Flood Stage:18
Flood Stage:16
Action Stage:14

Historical Crests
(1) 23.38 ft on 04/26/2001
(2) 23.05 ft on 05/10/1993
(3) 22.99 ft on 04/09/1969
(4) 22.88 ft on 09/27/2010
(5) 22.64 ft on 04/09/1997
Show More Historical Crests

Low Water Records
Currently none available.
Legend
Gauge Location
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
23.25 Levee gates at Riverside in Sioux City will be closed.
23 The higher levees on the Iowa side of the river are in danger of being overtopped...Highway 50 near Westfield will be flooded...and the bridge east of Jefferson will be overtopped.
22 Highway 48 begins to flood where the railroad tracks cross.
21.5 Highway 48 near the intersection with Iowa Highway 12 north of Akron begins to flood.
20 Highway 48 near Akron is flooded.
19.5 Several farm houses are flooded.
17 About 6500 acres of farm land are flooded.
16 Several farm levees are overtopped with significant flooding of agricultural lands.
15 Some rural roads on the South Dakota side of the river begin to flood.
12 Some very minor flooding of the lowest lying areas along the river begins.
Photos
(1) Upstream View
(2) Downstream View
About This Location Collapse

Latitude: 42.837500° N, Longitude: 96.561667° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame		 Gauge Height Flood Stage Uses
NWS stage 0 ft 16 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 1118.9 ft 1134.9 ft  

Other Data Sources:
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Hydrologic Resources Additional Resources
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The National Weather Service prepares its forecasts and other services in collaboration with agencies like the US Geological Survey, US Bureau of Reclamation, US Army Corps of Engineers, Natural Resource Conservation Service, National Park Service, ALERT Users Group, Bureau of Indian Affairs, and many state and local emergency managers across the country. For details, please click here.
NWS Information
National Weather Service
Sioux Falls Weather Forecast Office
26 Weather Lane
Sioux Falls, SD 57104-0198
(605) 330-4247
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Page last modified: 13-Mar-2013 6:27 PM 		Disclaimer
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