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Web Portal Changes: In Spring 2024, the Advanced Hydrologic Prediction Service (AHPS) hosted at https://water.weather.gov will be replaced by the National Water Prediction Service (NWPS) at a repurposed https://water.noaa.gov. A preview of NWPS is available here, where you can see your station hydrograph by replacing SSSSS with the station 5-character id: https://preview.water.noaa.gov/gauges/SSSSS.

Flood Inundation Mapping: Experimental real-time flood Inundation mapping services for 10% of the United States are now available via the NWS Map Viewer. Additional products and geospatial services depicting River Forecast Center and National Water Model forecasts continue to be accessible as described in the StoryMap here.

Please visit https://www.weather.gov/owp/operations for more information.



Hydrograph River at a Glance Download
Grand River at Ada Stage (ft)Flow (kcfs)Observed: 10.5 ft at 4:15AM Mar 14, 2024Observed: 10.53 ft at 4:30AM Mar 14, 2024Observed: 10.53 ft at 4:45AM Mar 14, 2024Observed: 10.5 ft at 5:00AM Mar 14, 2024Observed: 10.48 ft at 5:15AM Mar 14, 2024Observed: 10.49 ft at 5:30AM Mar 14, 2024Observed: 10.49 ft at 5:45AM Mar 14, 2024Observed: 10.54 ft at 6:00AM Mar 14, 2024Observed: 10.51 ft at 6:15AM Mar 14, 2024Observed: 10.47 ft at 6:30AM Mar 14, 2024Observed: 10.5 ft at 6:45AM Mar 14, 2024Observed: 10.5 ft at 7:00AM Mar 14, 2024Observed: 10.52 ft at 7:15AM Mar 14, 2024Observed: 10.49 ft at 7:30AM Mar 14, 2024Observed: 10.46 ft at 7:45AM Mar 14, 2024Observed: 10.47 ft at 8:00AM Mar 14, 2024Observed: 10.52 ft at 8:15AM Mar 14, 2024Observed: 10.51 ft at 8:30AM Mar 14, 2024Observed: 10.48 ft at 8:45AM Mar 14, 2024Observed: 10.46 ft at 9:00AM Mar 14, 2024Observed: 10.44 ft at 9:15AM Mar 14, 2024Observed: 10.43 ft at 9:30AM Mar 14, 2024Observed: 10.42 ft at 9:45AM Mar 14, 2024Observed: 10.41 ft at 10:00AM Mar 14, 2024Observed: 10.41 ft at 10:15AM Mar 14, 2024Observed: 10.41 ft at 10:30AM Mar 14, 2024Observed: 10.46 ft at 10:45AM Mar 14, 2024Observed: 10.5 ft at 11:00AM Mar 14, 2024Observed: 10.5 ft at 11:15AM Mar 14, 2024Observed: 10.49 ft at 11:30AM Mar 14, 2024Observed: 10.48 ft at 11:45AM Mar 14, 2024Observed: 10.47 ft at 12:00PM Mar 14, 2024Observed: 10.54 ft at 12:15PM Mar 14, 2024Observed: 10.56 ft at 12:30PM Mar 14, 2024Observed: 10.55 ft at 12:45PM Mar 14, 2024Observed: 10.52 ft at 1:00PM Mar 14, 2024Observed: 10.5 ft at 1:15PM Mar 14, 2024Observed: 10.49 ft at 1:30PM Mar 14, 2024Observed: 10.51 ft at 1:45PM Mar 14, 2024Observed: 10.56 ft at 2:00PM Mar 14, 2024Observed: 10.58 ft at 2:15PM Mar 14, 2024Observed: 10.6 ft at 2:30PM Mar 14, 2024Observed: 10.59 ft at 2:45PM Mar 14, 2024Observed: 10.55 ft at 3:00PM Mar 14, 2024Observed: 10.52 ft at 3:15PM Mar 14, 2024Observed: 10.54 ft at 3:30PM Mar 14, 2024Observed: 10.61 ft at 3:45PM Mar 14, 2024Observed: 10.62 ft at 4:00PM Mar 14, 2024Observed: 10.62 ft at 4:15PM Mar 14, 2024Observed: 10.63 ft at 4:30PM Mar 14, 2024Observed: 10.6 ft at 4:45PM Mar 14, 2024Observed: 10.6 ft at 5:00PM Mar 14, 2024Observed: 10.6 ft at 5:15PM Mar 14, 2024Observed: 10.61 ft at 5:30PM Mar 14, 2024Observed: 10.64 ft at 5:45PM Mar 14, 2024Observed: 10.62 ft at 6:00PM Mar 14, 2024Observed: 10.6 ft at 6:15PM Mar 14, 2024Observed: 10.61 ft at 6:30PM Mar 14, 2024Observed: 10.66 ft at 6:45PM Mar 14, 2024Observed: 10.62 ft at 7:00PM Mar 14, 2024Observed: 10.61 ft at 7:15PM Mar 14, 2024Observed: 10.6 ft at 7:30PM Mar 14, 2024Observed: 10.63 ft at 7:45PM Mar 14, 2024Observed: 10.63 ft at 8:00PM Mar 14, 2024Observed: 10.62 ft at 8:15PM Mar 14, 2024Observed: 10.67 ft at 8:30PM Mar 14, 2024Observed: 10.69 ft at 8:45PM Mar 14, 2024Observed: 10.69 ft at 9:00PM Mar 14, 2024Observed: 10.7 ft at 9:15PM Mar 14, 2024Observed: 10.66 ft at 9:30PM Mar 14, 2024Observed: 10.61 ft at 9:45PM Mar 14, 2024Observed: 10.61 ft at 10:00PM Mar 14, 2024Observed: 10.66 ft at 10:15PM Mar 14, 2024Observed: 10.69 ft at 10:30PM Mar 14, 2024Observed: 10.7 ft at 10:45PM Mar 14, 2024Observed: 10.67 ft at 11:00PM Mar 14, 2024Observed: 10.64 ft at 11:15PM Mar 14, 2024Observed: 10.66 ft at 11:30PM Mar 14, 2024Observed: 10.71 ft at 11:45PM Mar 14, 2024Observed: 10.71 ft at 12:00AM Mar 15, 2024Observed: 10.68 ft at 12:15AM Mar 15, 2024Observed: 10.66 ft at 12:30AM Mar 15, 2024Observed: 10.66 ft at 12:45AM Mar 15, 2024Observed: 10.68 ft at 1:00AM Mar 15, 2024Observed: 10.71 ft at 1:15AM Mar 15, 2024Observed: 10.72 ft at 1:30AM Mar 15, 2024Observed: 10.7 ft at 1:45AM Mar 15, 2024Observed: 10.72 ft at 2:00AM Mar 15, 2024Observed: 10.68 ft at 2:15AM Mar 15, 2024Observed: 10.67 ft at 2:30AM Mar 15, 2024Observed: 10.69 ft at 2:45AM Mar 15, 2024Observed: 10.73 ft at 3:00AM Mar 15, 2024Observed: 10.72 ft at 3:15AM Mar 15, 2024Observed: 10.69 ft at 3:30AM Mar 15, 2024Observed: 10.71 ft at 3:45AM Mar 15, 2024Observed: 10.71 ft at 4:00AM Mar 15, 2024Observed: 10.73 ft at 4:15AM Mar 15, 2024Observed: 10.73 ft at 4:30AM Mar 15, 2024Observed: 10.7 ft at 4:45AM Mar 15, 2024Observed: 10.66 ft at 5:00AM Mar 15, 2024Observed: 10.66 ft at 5:15AM Mar 15, 2024Observed: 10.73 ft at 5:30AM Mar 15, 2024Observed: 10.73 ft at 5:45AM Mar 15, 2024Observed: 10.7 ft at 6:00AM Mar 15, 2024Observed: 10.71 ft at 6:15AM Mar 15, 2024Observed: 10.71 ft at 6:30AM Mar 15, 2024Observed: 10.69 ft at 6:45AM Mar 15, 2024Observed: 10.7 ft at 7:00AM Mar 15, 2024Observed: 10.69 ft at 7:15AM Mar 15, 2024Observed: 10.71 ft at 7:30AM Mar 15, 2024Observed: 10.73 ft at 7:45AM Mar 15, 2024Observed: 10.7 ft at 8:00AM Mar 15, 2024Observed: 10.68 ft at 8:15AM Mar 15, 2024Observed: 10.68 ft at 8:30AM Mar 15, 2024Observed: 10.73 ft at 8:45AM Mar 15, 2024Observed: 10.74 ft at 9:00AM Mar 15, 2024Observed: 10.7 ft at 9:15AM Mar 15, 2024Observed: 10.68 ft at 9:30AM Mar 15, 2024Observed: 10.72 ft at 9:45AM Mar 15, 2024Observed: 10.73 ft at 10:00AM Mar 15, 2024Observed: 10.72 ft at 10:15AM Mar 15, 2024Observed: 10.68 ft at 10:30AM Mar 15, 2024Observed: 10.71 ft at 10:45AM Mar 15, 2024Observed: 10.74 ft at 11:00AM Mar 15, 2024Observed: 10.77 ft at 11:15AM Mar 15, 2024Observed: 10.74 ft at 11:30AM Mar 15, 2024Observed: 10.7 ft at 11:45AM Mar 15, 2024Observed: 10.7 ft at 12:00PM Mar 15, 2024Observed: 10.68 ft at 12:15PM Mar 15, 2024Observed: 10.74 ft at 12:30PM Mar 15, 2024Observed: 10.77 ft at 12:45PM Mar 15, 2024Observed: 10.75 ft at 1:00PM Mar 15, 2024Observed: 10.72 ft at 1:15PM Mar 15, 2024Observed: 10.68 ft at 1:30PM Mar 15, 2024Observed: 10.69 ft at 1:45PM Mar 15, 2024Observed: 10.76 ft at 2:00PM Mar 15, 2024Observed: 10.77 ft at 2:15PM Mar 15, 2024Observed: 10.79 ft at 2:30PM Mar 15, 2024Observed: 10.76 ft at 2:45PM Mar 15, 2024Observed: 10.72 ft at 3:00PM Mar 15, 2024Observed: 10.69 ft at 3:15PM Mar 15, 2024Observed: 10.67 ft at 3:30PM Mar 15, 2024Observed: 10.67 ft at 3:45PM Mar 15, 2024Observed: 10.66 ft at 4:00PM Mar 15, 2024Observed: 10.69 ft at 4:15PM Mar 15, 2024Observed: 10.76 ft at 4:30PM Mar 15, 2024Observed: 10.78 ft at 4:45PM Mar 15, 2024Observed: 10.8 ft at 5:00PM Mar 15, 2024Observed: 10.82 ft at 5:15PM Mar 15, 2024Observed: 10.83 ft at 5:30PM Mar 15, 2024Observed: 10.79 ft at 5:45PM Mar 15, 2024Observed: 10.74 ft at 6:00PM Mar 15, 2024Observed: 10.71 ft at 6:15PM Mar 15, 2024Observed: 10.7 ft at 6:30PM Mar 15, 2024Observed: 10.76 ft at 6:45PM Mar 15, 2024Observed: 10.79 ft at 7:00PM Mar 15, 2024Observed: 10.81 ft at 7:15PM Mar 15, 2024Observed: 10.78 ft at 7:30PM Mar 15, 2024Observed: 10.77 ft at 7:45PM Mar 15, 2024Observed: 10.81 ft at 8:00PM Mar 15, 2024Observed: 10.84 ft at 8:15PM Mar 15, 2024Observed: 10.82 ft at 8:30PM Mar 15, 2024Observed: 10.82 ft at 8:45PM Mar 15, 2024Observed: 10.78 ft at 9:00PM Mar 15, 2024Observed: 10.75 ft at 9:15PM Mar 15, 2024Observed: 10.73 ft at 9:30PM Mar 15, 2024Observed: 10.77 ft at 9:45PM Mar 15, 2024Observed: 10.82 ft at 10:00PM Mar 15, 2024Observed: 10.82 ft at 10:15PM Mar 15, 2024Observed: 10.79 ft at 10:30PM Mar 15, 2024Observed: 10.77 ft at 10:45PM Mar 15, 2024Observed: 10.75 ft at 11:00PM Mar 15, 2024Observed: 10.75 ft at 11:15PM Mar 15, 2024Observed: 10.82 ft at 11:30PM Mar 15, 2024Observed: 10.82 ft at 11:45PM Mar 15, 2024Observed: 10.83 ft at 12:00AM Mar 16, 2024Observed: 10.81 ft at 12:15AM Mar 16, 2024Observed: 10.77 ft at 12:30AM Mar 16, 2024Observed: 10.76 ft at 12:45AM Mar 16, 2024Observed: 10.79 ft at 1:00AM Mar 16, 2024Observed: 10.81 ft at 1:15AM Mar 16, 2024Observed: 10.84 ft at 1:30AM Mar 16, 2024Observed: 10.81 ft at 1:45AM Mar 16, 2024Observed: 10.8 ft at 2:00AM Mar 16, 2024Observed: 10.8 ft at 2:15AM Mar 16, 2024Observed: 10.82 ft at 2:30AM Mar 16, 2024Observed: 10.85 ft at 2:45AM Mar 16, 2024Observed: 10.82 ft at 3:00AM Mar 16, 2024Observed: 10.79 ft at 3:15AM Mar 16, 2024Observed: 10.84 ft at 3:30AM Mar 16, 2024Observed: 10.85 ft at 3:45AM Mar 16, 2024Observed: 10.84 ft at 4:00AM Mar 16, 2024Observed: 10.8 ft at 4:15AM Mar 16, 2024Observed: 10.8 ft at 4:30AM Mar 16, 2024Observed: 10.81 ft at 4:45AM Mar 16, 2024Highest Observation: 10.86 ft at 5:00AM Mar 16, 2024Highest Observation: 10.86 ft at 5:15AM Mar 16, 2024Observed: 10.83 ft at 5:30AM Mar 16, 2024Observed: 10.79 ft at 5:45AM Mar 16, 2024Observed: 10.81 ft at 6:00AM Mar 16, 2024Observed: 10.84 ft at 6:15AM Mar 16, 2024Highest Observation: 10.86 ft at 6:30AM Mar 16, 2024Observed: 10.83 ft at 6:45AM Mar 16, 2024Observed: 10.81 ft at 7:00AM Mar 16, 2024Observed: 10.8 ft at 7:15AM Mar 16, 2024Observed: 10.83 ft at 7:30AM Mar 16, 2024Observed: 10.85 ft at 7:45AM Mar 16, 2024Observed: 10.84 ft at 8:00AM Mar 16, 2024Observed: 10.8 ft at 8:15AM Mar 16, 2024Observed: 10.84 ft at 8:30AM Mar 16, 2024Observed: 10.83 ft at 8:45AM Mar 16, 2024Observed: 10.85 ft at 9:00AM Mar 16, 2024Observed: 10.82 ft at 9:15AM Mar 16, 2024Observed: 10.78 ft at 9:30AM Mar 16, 2024Observed: 10.8 ft at 9:45AM Mar 16, 2024Observed: 10.8 ft at 10:00AM Mar 16, 2024Observed: 10.83 ft at 10:15AM Mar 16, 2024Observed: 10.84 ft at 10:30AM Mar 16, 2024Observed: 10.82 ft at 10:45AM Mar 16, 2024Observed: 10.84 ft at 11:00AM Mar 16, 2024Highest Observation: 10.86 ft at 11:15AM Mar 16, 2024Observed: 10.83 ft at 11:30AM Mar 16, 2024Observed: 10.81 ft at 11:45AM Mar 16, 2024Observed: 10.77 ft at 12:00PM Mar 16, 2024Observed: 10.83 ft at 12:15PM Mar 16, 2024Observed: 10.85 ft at 12:30PM Mar 16, 2024Observed: 10.85 ft at 12:45PM Mar 16, 2024Observed: 10.85 ft at 1:00PM Mar 16, 2024Observed: 10.81 ft at 1:15PM Mar 16, 2024Observed: 10.77 ft at 1:30PM Mar 16, 2024Observed: 10.74 ft at 1:45PM Mar 16, 2024Observed: 10.73 ft at 2:00PM Mar 16, 2024Observed: 10.74 ft at 2:15PM Mar 16, 2024Observed: 10.79 ft at 2:30PM Mar 16, 2024Observed: 10.8 ft at 2:45PM Mar 16, 2024Observed: 10.78 ft at 3:00PM Mar 16, 2024Observed: 10.73 ft at 3:15PM Mar 16, 2024Observed: 10.7 ft at 3:30PM Mar 16, 2024Observed: 10.72 ft at 3:45PM Mar 16, 2024Observed: 10.72 ft at 4:00PM Mar 16, 2024Observed: 10.68 ft at 4:15PM Mar 16, 2024Observed: 10.74 ft at 4:30PM Mar 16, 2024Observed: 10.75 ft at 4:45PM Mar 16, 2024Observed: 10.72 ft at 5:00PM Mar 16, 2024Observed: 10.73 ft at 5:15PM Mar 16, 2024Observed: 10.75 ft at 5:30PM Mar 16, 2024Observed: 10.74 ft at 5:45PM Mar 16, 2024Observed: 10.8 ft at 6:00PM Mar 16, 2024Observed: 10.81 ft at 6:15PM Mar 16, 2024Observed: 10.8 ft at 6:30PM Mar 16, 2024Observed: 10.76 ft at 6:45PM Mar 16, 2024Observed: 10.73 ft at 7:00PM Mar 16, 2024Observed: 10.71 ft at 7:15PM Mar 16, 2024Observed: 10.68 ft at 7:30PM Mar 16, 2024Observed: 10.68 ft at 7:45PM Mar 16, 2024Observed: 10.67 ft at 8:00PM Mar 16, 2024Observed: 10.66 ft at 8:15PM Mar 16, 2024Observed: 10.68 ft at 8:30PM Mar 16, 2024Observed: 10.67 ft at 8:45PM Mar 16, 2024Observed: 10.64 ft at 9:00PM Mar 16, 2024Observed: 10.63 ft at 9:15PM Mar 16, 2024Observed: 10.64 ft at 9:30PM Mar 16, 2024Observed: 10.68 ft at 9:45PM Mar 16, 2024Observed: 10.65 ft at 10:00PM Mar 16, 2024Observed: 10.66 ft at 10:15PM Mar 16, 2024Observed: 10.63 ft at 10:30PM Mar 16, 2024Observed: 10.63 ft at 10:45PM Mar 16, 2024Observed: 10.64 ft at 11:00PM Mar 16, 2024Observed: 10.65 ft at 11:15PM Mar 16, 2024Observed: 10.65 ft at 11:30PM Mar 16, 2024Observed: 10.67 ft at 11:45PM Mar 16, 2024Observed: 10.69 ft at 12:00AM Mar 17, 2024Observed: 10.7 ft at 12:15AM Mar 17, 2024Observed: 10.7 ft at 12:30AM Mar 17, 2024Observed: 10.66 ft at 12:45AM Mar 17, 2024Observed: 10.65 ft at 1:00AM Mar 17, 2024Observed: 10.65 ft at 1:15AM Mar 17, 2024Observed: 10.67 ft at 1:30AM Mar 17, 2024Observed: 10.66 ft at 1:45AM Mar 17, 2024Observed: 10.7 ft at 2:00AM Mar 17, 2024Observed: 10.68 ft at 2:15AM Mar 17, 2024Observed: 10.65 ft at 2:30AM Mar 17, 2024Observed: 10.66 ft at 2:45AM Mar 17, 2024Observed: 10.68 ft at 3:00AM Mar 17, 2024Observed: 10.7 ft at 3:15AM Mar 17, 2024Observed: 10.71 ft at 3:30AM Mar 17, 2024Observed: 10.73 ft at 3:45AM Mar 17, 2024Observed: 10.7 ft at 4:00AM Mar 17, 2024Observed: 10.67 ft at 4:15AM Mar 17, 2024Observed: 10.66 ft at 4:30AM Mar 17, 2024Observed: 10.64 ft at 4:45AM Mar 17, 2024Observed: 10.63 ft at 5:00AM Mar 17, 2024Observed: 10.64 ft at 5:15AM Mar 17, 2024Observed: 10.66 ft at 5:30AM Mar 17, 2024Observed: 10.71 ft at 5:45AM Mar 17, 2024Observed: 10.74 ft at 6:00AM Mar 17, 2024Observed: 10.72 ft at 6:15AM Mar 17, 2024Observed: 10.68 ft at 6:30AM Mar 17, 2024Observed: 10.65 ft at 6:45AM Mar 17, 2024Observed: 10.64 ft at 7:00AM Mar 17, 2024Observed: 10.63 ft at 7:15AM Mar 17, 2024Observed: 10.62 ft at 7:30AM Mar 17, 2024Observed: 10.63 ft at 7:45AM Mar 17, 2024Observed: 10.68 ft at 8:00AM Mar 17, 2024Observed: 10.71 ft at 8:15AM Mar 17, 2024Observed: 10.69 ft at 8:30AM Mar 17, 2024Observed: 10.65 ft at 8:45AM Mar 17, 2024Observed: 10.64 ft at 9:00AM Mar 17, 2024Observed: 10.63 ft at 9:15AM Mar 17, 2024Observed: 10.62 ft at 9:30AM Mar 17, 2024Observed: 10.63 ft at 9:45AM Mar 17, 2024Observed: 10.66 ft at 10:00AM Mar 17, 2024Observed: 10.64 ft at 10:15AM Mar 17, 2024Observed: 10.64 ft at 10:30AM Mar 17, 2024Observed: 10.65 ft at 10:45AM Mar 17, 2024Observed: 10.62 ft at 11:00AM Mar 17, 2024Observed: 10.62 ft at 11:15AM Mar 17, 2024Observed: 10.62 ft at 11:30AM Mar 17, 2024Observed: 10.64 ft at 11:45AM Mar 17, 2024Observed: 10.6 ft at 12:00PM Mar 17, 2024Observed: 10.64 ft at 12:15PM Mar 17, 2024Observed: 10.64 ft at 12:30PM Mar 17, 2024Observed: 10.63 ft at 12:45PM Mar 17, 2024Observed: 10.62 ft at 1:00PM Mar 17, 2024Observed: 10.62 ft at 1:15PM Mar 17, 2024Observed: 10.68 ft at 1:30PM Mar 17, 2024Observed: 10.65 ft at 1:45PM Mar 17, 2024Observed: 10.62 ft at 2:00PM Mar 17, 2024Observed: 10.61 ft at 2:15PM Mar 17, 2024Observed: 10.62 ft at 2:30PM Mar 17, 2024Observed: 10.63 ft at 2:45PM Mar 17, 2024Observed: 10.63 ft at 3:00PM Mar 17, 2024Observed: 10.62 ft at 3:15PM Mar 17, 2024Observed: 10.69 ft at 3:30PM Mar 17, 2024Observed: 10.7 ft at 3:45PM Mar 17, 2024Observed: 10.68 ft at 4:00PM Mar 17, 2024Observed: 10.65 ft at 4:15PM Mar 17, 2024Observed: 10.63 ft at 4:30PM Mar 17, 2024Observed: 10.62 ft at 4:45PM Mar 17, 2024Observed: 10.61 ft at 5:00PM Mar 17, 2024Observed: 10.61 ft at 5:15PM Mar 17, 2024Observed: 10.6 ft at 5:30PM Mar 17, 2024Observed: 10.6 ft at 5:45PM Mar 17, 2024Observed: 10.64 ft at 6:00PM Mar 17, 2024Observed: 10.66 ft at 6:15PM Mar 17, 2024Observed: 10.63 ft at 6:30PM Mar 17, 2024Observed: 10.6 ft at 6:45PM Mar 17, 2024Observed: 10.6 ft at 7:00PM Mar 17, 2024Observed: 10.59 ft at 7:15PM Mar 17, 2024Observed: 10.61 ft at 7:30PM Mar 17, 2024Observed: 10.65 ft at 7:45PM Mar 17, 2024Observed: 10.63 ft at 8:00PM Mar 17, 2024Observed: 10.64 ft at 8:15PM Mar 17, 2024Observed: 10.61 ft at 8:30PM Mar 17, 2024Observed: 10.59 ft at 8:45PM Mar 17, 2024Observed: 10.59 ft at 9:00PM Mar 17, 2024Observed: 10.6 ft at 9:15PM Mar 17, 2024Observed: 10.62 ft at 9:30PM Mar 17, 2024Observed: 10.64 ft at 9:45PM Mar 17, 2024Observed: 10.62 ft at 10:00PM Mar 17, 2024Observed: 10.59 ft at 10:15PM Mar 17, 2024Observed: 10.58 ft at 10:30PM Mar 17, 2024Observed: 10.59 ft at 10:45PM Mar 17, 2024Observed: 10.62 ft at 11:00PM Mar 17, 2024Observed: 10.6 ft at 11:15PM Mar 17, 2024Observed: 10.6 ft at 11:30PM Mar 17, 2024Observed: 10.58 ft at 11:45PM Mar 17, 2024Observed: 10.57 ft at 12:00AM Mar 18, 2024Observed: 10.6 ft at 12:15AM Mar 18, 2024Observed: 10.59 ft at 12:30AM Mar 18, 2024Observed: 10.59 ft at 12:45AM Mar 18, 2024Observed: 10.6 ft at 1:00AM Mar 18, 2024Observed: 10.58 ft at 1:15AM Mar 18, 2024Observed: 10.58 ft at 1:30AM Mar 18, 2024Observed: 10.58 ft at 1:45AM Mar 18, 2024Observed: 10.6 ft at 2:00AM Mar 18, 2024Observed: 10.57 ft at 2:15AM Mar 18, 2024Observed: 10.59 ft at 2:30AM Mar 18, 2024Observed: 10.61 ft at 2:45AM Mar 18, 2024Observed: 10.57 ft at 3:00AM Mar 18, 2024Observed: 10.56 ft at 3:15AM Mar 18, 2024Observed: 10.55 ft at 3:30AM Mar 18, 2024Observed: 10.58 ft at 3:45AM Mar 18, 2024Observed: 10.61 ft at 4:00AM Mar 18, 2024Observed: 10.62 ft at 4:15AM Mar 18, 2024Observed: 10.59 ft at 4:30AM Mar 18, 2024Observed: 10.57 ft at 4:45AM Mar 18, 2024Observed: 10.56 ft at 5:00AM Mar 18, 2024Observed: 10.56 ft at 5:15AM Mar 18, 2024Observed: 10.59 ft at 5:30AM Mar 18, 2024Observed: 10.6 ft at 5:45AM Mar 18, 2024Observed: 10.56 ft at 6:00AM Mar 18, 2024Observed: 10.55 ft at 6:15AM Mar 18, 2024Observed: 10.54 ft at 6:30AM Mar 18, 2024Observed: 10.56 ft at 6:45AM Mar 18, 2024Observed: 10.59 ft at 7:00AM Mar 18, 2024Observed: 10.58 ft at 7:15AM Mar 18, 2024Observed: 10.55 ft at 7:30AM Mar 18, 2024Observed: 10.54 ft at 7:45AM Mar 18, 2024Observed: 10.53 ft at 8:00AM Mar 18, 2024Observed: 10.52 ft at 8:15AM Mar 18, 2024Observed: 10.53 ft at 8:30AM Mar 18, 2024Observed: 10.52 ft at 8:45AM Mar 18, 2024Observed: 10.55 ft at 9:00AM Mar 18, 2024Observed: 10.54 ft at 9:15AM Mar 18, 2024Observed: 10.54 ft at 9:30AM Mar 18, 2024Observed: 10.54 ft at 9:45AM Mar 18, 2024Observed: 10.55 ft at 10:00AM Mar 18, 2024Observed: 10.52 ft at 10:15AM Mar 18, 2024Observed: 10.51 ft at 10:30AM Mar 18, 2024Observed: 10.53 ft at 10:45AM Mar 18, 2024Observed: 10.55 ft at 11:00AM Mar 18, 2024Observed: 10.58 ft at 11:15AM Mar 18, 2024Observed: 10.55 ft at 11:30AM Mar 18, 2024Observed: 10.53 ft at 11:45AM Mar 18, 2024Observed: 10.52 ft at 12:00PM Mar 18, 2024Observed: 10.51 ft at 12:15PM Mar 18, 2024Observed: 10.53 ft at 12:30PM Mar 18, 2024Observed: 10.51 ft at 12:45PM Mar 18, 2024Observed: 10.51 ft at 1:00PM Mar 18, 2024Observed: 10.5 ft at 1:15PM Mar 18, 2024Observed: 10.54 ft at 1:30PM Mar 18, 2024Observed: 10.52 ft at 1:45PM Mar 18, 2024Observed: 10.5 ft at 2:00PM Mar 18, 2024Observed: 10.49 ft at 2:15PM Mar 18, 2024Observed: 10.49 ft at 2:30PM Mar 18, 2024Observed: 10.52 ft at 2:45PM Mar 18, 2024Observed: 10.49 ft at 3:00PM Mar 18, 2024Observed: 10.48 ft at 3:15PM Mar 18, 2024Observed: 10.47 ft at 3:30PM Mar 18, 2024Observed: 10.49 ft at 3:45PM Mar 18, 2024Observed: 10.48 ft at 4:00PM Mar 18, 2024Observed: 10.47 ft at 4:15PM Mar 18, 2024Observed: 10.46 ft at 4:30PM Mar 18, 2024Observed: 10.47 ft at 4:45PM Mar 18, 2024Observed: 10.47 ft at 5:00PM Mar 18, 2024Observed: 10.49 ft at 5:15PM Mar 18, 2024Observed: 10.47 ft at 5:30PM Mar 18, 2024Observed: 10.46 ft at 5:45PM Mar 18, 2024Observed: 10.45 ft at 6:00PM Mar 18, 2024Observed: 10.46 ft at 6:15PM Mar 18, 2024Observed: 10.45 ft at 6:30PM Mar 18, 2024Observed: 10.48 ft at 6:45PM Mar 18, 2024Observed: 10.47 ft at 7:00PM Mar 18, 2024Observed: 10.45 ft at 7:15PM Mar 18, 2024Observed: 10.45 ft at 7:30PM Mar 18, 2024Observed: 10.45 ft at 7:45PM Mar 18, 2024Observed: 10.45 ft at 8:00PM Mar 18, 2024Observed: 10.45 ft at 8:15PM Mar 18, 2024Observed: 10.45 ft at 8:30PM Mar 18, 2024Observed: 10.43 ft at 8:45PM Mar 18, 2024Observed: 10.42 ft at 9:00PM Mar 18, 2024Observed: 10.44 ft at 9:15PM Mar 18, 2024Observed: 10.44 ft at 9:30PM Mar 18, 2024Observed: 10.42 ft at 9:45PM Mar 18, 2024Observed: 10.41 ft at 10:00PM Mar 18, 2024Observed: 10.4 ft at 10:15PM Mar 18, 2024Observed: 10.42 ft at 10:30PM Mar 18, 2024Observed: 10.41 ft at 10:45PM Mar 18, 2024Observed: 10.4 ft at 11:00PM Mar 18, 2024Observed: 10.4 ft at 11:15PM Mar 18, 2024Observed: 10.4 ft at 11:30PM Mar 18, 2024Observed: 10.4 ft at 11:45PM Mar 18, 2024Observed: 10.38 ft at 12:00AM Mar 19, 2024Observed: 10.37 ft at 12:15AM Mar 19, 2024Observed: 10.37 ft at 12:30AM Mar 19, 2024Observed: 10.4 ft at 12:45AM Mar 19, 2024Observed: 10.41 ft at 1:00AM Mar 19, 2024Observed: 10.38 ft at 1:15AM Mar 19, 2024Observed: 10.37 ft at 1:30AM Mar 19, 2024Observed: 10.36 ft at 1:45AM Mar 19, 2024Observed: 10.36 ft at 2:00AM Mar 19, 2024Observed: 10.35 ft at 2:15AM Mar 19, 2024Observed: 10.36 ft at 2:30AM Mar 19, 2024Observed: 10.36 ft at 2:45AM Mar 19, 2024Observed: 10.37 ft at 3:00AM Mar 19, 2024USGS--Water Resources of the United StatesADAM4(plotting HGIRZ) Graph Created (4:06AM Mar 19, 2024)ObservedLatest observed value: 10.37 ft at 3:00 AM EDT 19-Mar-2024. Flood Stage is 20 ft
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Tabular Data (UTC)
Tabular Data (EDT)
XML Data
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Datum: NAVD88
Metadata
NOTE: River forecasts for this location take into account past precipitation and the precipitation amounts expected approximately 48 hours into the future from the forecast issuance time.

NOTE: Stage may be affected by ice during winter months.

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

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Upstream Gauge - at Lowell Upstream Gauge Downstream Gauge Downstream Gauge - at Comstock Park
Flood Categories (in feet)
Major Flood Stage: 25
Moderate Flood Stage: 22
Flood Stage: 20
Action Stage: 17
Low Stage (in feet): -9999

Historic Crests
(1) 22.81 ft on 04/21/2013
(2) 22.56 ft on 02/24/2018
(3) 21.62 ft on 05/21/2020
(4) 21.60 ft on 02/28/1986
(5) 21.56 ft on 05/26/2004
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 17.25 ft on 06/30/2021
(2) 21.62 ft on 05/21/2020
(3) 17.78 ft on 03/17/2019
(4) 22.56 ft on 02/24/2018
(5) 19.89 ft on 04/09/2017
Show More Recent Crests

(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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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
29 Alticor Inc. Catalog and Powder Complex flood.
27 Alticor Inc. buildings number 34 and 58 flood.
24.5 Inner dike along Alticor Inc. overtopped. East complex on Alticor Inc. floods.
21.6 500 parking spaces in the Alticor Inc. parking lot are inundated and one gate into the Alticor Inc. complex is closed due to the high water. Ada River Walk near Covered Bridge and Leonard Field Ball Park in Ada flooded.
20.7 Floodwaters begin to affect walkways along the river near downtown Ada.
20.5 Chief Hazy Cloud Park downstream of gage begins to flood.
20 Expect minor flooding of low lying areas.
17 River is bankfull. Shady Drive floods.
13 Water starts to impact low spots on the walking and biking trails along the river in Roselle Park.
Photos
(1) April 2013 Flooding - Shady Drive near Knapp Street Bridge
(2) April 2013 Flooding - Shady Drive
(3) April 2013 Flooding - Jupiter Bridge, Plainfield Township
(4) April 2013 Flooding - Fulton Street Bridge near Ada
(5) Backside of Ada Dam on the Thornapple River
(6) Ada Dam on the Thornapple River at High Water
(7) Alticor Parking Lot
(8) Alticor parking lot flooded during High Water
(9) Cascade Dam on the Thornapple River
(10) Grand River near Ada - Looking Downstream
(11) River Gage at Ada
(12) Grand River near Ada - Looking Upstream toward Bridge
(13) Fulton Street Bridge during High Water
(14) Grand River near Ada - Looking Upstream from Bridge
(15) Upstream view from Fulton Street Bridge of Grand River at High Water
(16) Covered Bridge in Ada over the Thornapple River at High Flows
(17) Leonard Park in Ada Flooded during High Water
(18) Ada Drive in Ada flooded during High Water
(19) Public boat ramp parking lot along Grand River near Ada flooded at High Water
(20) Grand River near Ada public boat ramp flooded during High Water
(21) Shady Drive near Knapp Street Bridge flooded by Grand River
About This Location Collapse

Latitude: 42.956974° N, Longitude: 85.477523° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 20 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 603.51 ft 623.51 ft Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps
NGVD 29 Not Available Not Available Older USGS topographic maps, NGVD29 benchmarks
MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks
Other Not Available Not Available  

Current/Historical Observations:

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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
Grand Rapids Weather Forecast Office
4899 Tim Dougherty Drive SE
Grand Rapids, MI 49512-4034
(616) 949-0643
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Page last modified: 2-Nov-2020 7:30 PM
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