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Web Portal Changes: The Advanced Hydrologic Prediction Service (AHPS) hosted at https://water.weather.gov will be replaced by the National Water Prediction Service (NWPS), with a target of March 2024. Existing AHPS content and features will be preserved and expanded within NWPS.

Experimental National Water Center Products: Flood Inundation Mapping services are now available for 10% of the U.S. population. Please visit https://www.weather.gov/owp/operations for more information. The National Hydrologic Discussion, Area Hydrologic Discussion, Flood Hazard Outlook, and real-time geospatial services depicting River Forecast Center and National Water Model forecasts, continue to be accessible via the URL above, as described in the StoryMap here.



Hydrograph River at a Glance Download
Missouri River at Canyon Ferry Reservoir Pool (ft)Observed: 3790.29 ft at 6:00PM Sep 22, 2023Observed: 3790.31 ft at 6:15PM Sep 22, 2023Observed: 3790.33 ft at 6:30PM Sep 22, 2023Observed: 3790.34 ft at 6:45PM Sep 22, 2023Observed: 3790.32 ft at 7:00PM Sep 22, 2023Observed: 3790.32 ft at 7:15PM Sep 22, 2023Observed: 3790.3 ft at 7:30PM Sep 22, 2023Observed: 3790.3 ft at 7:45PM Sep 22, 2023Observed: 3790.32 ft at 8:00PM Sep 22, 2023Observed: 3790.34 ft at 8:15PM Sep 22, 2023Observed: 3790.35 ft at 8:30PM Sep 22, 2023Observed: 3790.34 ft at 8:45PM Sep 22, 2023Observed: 3790.31 ft at 9:00PM Sep 22, 2023Observed: 3790.3 ft at 9:15PM Sep 22, 2023Observed: 3790.31 ft at 9:30PM Sep 22, 2023Observed: 3790.33 ft at 9:45PM Sep 22, 2023Observed: 3790.33 ft at 10:00PM Sep 22, 2023Observed: 3790.34 ft at 10:15PM Sep 22, 2023Observed: 3790.33 ft at 10:30PM Sep 22, 2023Observed: 3790.3 ft at 10:45PM Sep 22, 2023Observed: 3790.31 ft at 11:00PM Sep 22, 2023Observed: 3790.32 ft at 11:15PM Sep 22, 2023Observed: 3790.33 ft at 11:30PM Sep 22, 2023Observed: 3790.34 ft at 11:45PM Sep 22, 2023Observed: 3790.34 ft at 12:00AM Sep 23, 2023Observed: 3790.33 ft at 12:15AM Sep 23, 2023Observed: 3790.31 ft at 12:30AM Sep 23, 2023Observed: 3790.33 ft at 12:45AM Sep 23, 2023Observed: 3790.33 ft at 1:00AM Sep 23, 2023Observed: 3790.34 ft at 1:15AM Sep 23, 2023Observed: 3790.35 ft at 1:30AM Sep 23, 2023Observed: 3790.34 ft at 1:45AM Sep 23, 2023Observed: 3790.34 ft at 2:00AM Sep 23, 2023Observed: 3790.33 ft at 2:15AM Sep 23, 2023Observed: 3790.34 ft at 2:30AM Sep 23, 2023Observed: 3790.34 ft at 2:45AM Sep 23, 2023Observed: 3790.34 ft at 3:00AM Sep 23, 2023Observed: 3790.35 ft at 3:15AM Sep 23, 2023Observed: 3790.34 ft at 3:30AM Sep 23, 2023Observed: 3790.34 ft at 3:45AM Sep 23, 2023Observed: 3790.33 ft at 4:00AM Sep 23, 2023Observed: 3790.33 ft at 4:15AM Sep 23, 2023Observed: 3790.34 ft at 4:30AM Sep 23, 2023Observed: 3790.35 ft at 4:45AM Sep 23, 2023Observed: 3790.35 ft at 5:00AM Sep 23, 2023Observed: 3790.34 ft at 5:15AM Sep 23, 2023Observed: 3790.33 ft at 5:30AM Sep 23, 2023Observed: 3790.33 ft at 5:45AM Sep 23, 2023Observed: 3790.34 ft at 6:00AM Sep 23, 2023Observed: 3790.35 ft at 6:15AM Sep 23, 2023Observed: 3790.35 ft at 6:30AM Sep 23, 2023Observed: 3790.35 ft at 6:45AM Sep 23, 2023Observed: 3790.33 ft at 7:00AM Sep 23, 2023Observed: 3790.34 ft at 7:15AM Sep 23, 2023Observed: 3790.33 ft at 7:30AM Sep 23, 2023Observed: 3790.33 ft at 7:45AM Sep 23, 2023Observed: 3790.35 ft at 8:00AM Sep 23, 2023Observed: 3790.34 ft at 8:15AM Sep 23, 2023Observed: 3790.35 ft at 8:30AM Sep 23, 2023Observed: 3790.33 ft at 8:45AM Sep 23, 2023Observed: 3790.33 ft at 9:00AM Sep 23, 2023Observed: 3790.33 ft at 9:15AM Sep 23, 2023Observed: 3790.34 ft at 9:30AM Sep 23, 2023Highest Observation: 3790.36 ft at 9:45AM Sep 23, 2023Observed: 3790.35 ft at 10:00AM Sep 23, 2023Observed: 3790.35 ft at 10:15AM Sep 23, 2023Observed: 3790.34 ft at 10:30AM Sep 23, 2023Observed: 3790.34 ft at 10:45AM Sep 23, 2023Observed: 3790.34 ft at 11:00AM Sep 23, 2023Observed: 3790.34 ft at 11:15AM Sep 23, 2023Observed: 3790.35 ft at 11:30AM Sep 23, 2023Observed: 3790.35 ft at 11:45AM Sep 23, 2023Highest Observation: 3790.36 ft at 12:00PM Sep 23, 2023Observed: 3790.34 ft at 12:15PM Sep 23, 2023Observed: 3790.33 ft at 12:30PM Sep 23, 2023Observed: 3790.34 ft at 12:45PM Sep 23, 2023Observed: 3790.34 ft at 1:00PM Sep 23, 2023Observed: 3790.33 ft at 2:15PM Sep 23, 2023Observed: 3790.33 ft at 2:30PM Sep 23, 2023Observed: 3790.33 ft at 2:45PM Sep 23, 2023Observed: 3790.35 ft at 3:00PM Sep 23, 2023Observed: 3790.34 ft at 3:15PM Sep 23, 2023Observed: 3790.32 ft at 3:30PM Sep 23, 2023Observed: 3790.32 ft at 3:45PM Sep 23, 2023Observed: 3790.32 ft at 4:00PM Sep 23, 2023Observed: 3790.32 ft at 4:15PM Sep 23, 2023Observed: 3790.33 ft at 4:30PM Sep 23, 2023Observed: 3790.33 ft at 4:45PM Sep 23, 2023Observed: 3790.32 ft at 5:00PM Sep 23, 2023Observed: 3790.32 ft at 5:15PM Sep 23, 2023Observed: 3790.33 ft at 5:30PM Sep 23, 2023Observed: 3790.31 ft at 5:45PM Sep 23, 2023Observed: 3790.32 ft at 6:00PM Sep 23, 2023Observed: 3790.33 ft at 6:15PM Sep 23, 2023Observed: 3790.32 ft at 6:30PM Sep 23, 2023Observed: 3790.33 ft at 6:45PM Sep 23, 2023Observed: 3790.32 ft at 7:00PM Sep 23, 2023Observed: 3790.32 ft at 7:15PM Sep 23, 2023Observed: 3790.31 ft at 7:30PM Sep 23, 2023Observed: 3790.32 ft at 7:45PM Sep 23, 2023Observed: 3790.32 ft at 8:00PM Sep 23, 2023Observed: 3790.31 ft at 8:15PM Sep 23, 2023Observed: 3790.33 ft at 8:30PM Sep 23, 2023Observed: 3790.31 ft at 8:45PM Sep 23, 2023Observed: 3790.32 ft at 9:00PM Sep 23, 2023Observed: 3790.32 ft at 9:15PM Sep 23, 2023Observed: 3790.3 ft at 9:30PM Sep 23, 2023Observed: 3790.31 ft at 9:45PM Sep 23, 2023Observed: 3790.31 ft at 10:00PM Sep 23, 2023Observed: 3790.32 ft at 10:15PM Sep 23, 2023Observed: 3790.31 ft at 10:30PM Sep 23, 2023Observed: 3790.32 ft at 10:45PM Sep 23, 2023Observed: 3790.32 ft at 11:00PM Sep 23, 2023Observed: 3790.31 ft at 11:15PM Sep 23, 2023Observed: 3790.32 ft at 11:30PM Sep 23, 2023Observed: 3790.3 ft at 11:45PM Sep 23, 2023Observed: 3790.31 ft at 12:00AM Sep 24, 2023Observed: 3790.31 ft at 12:15AM Sep 24, 2023Observed: 3790.31 ft at 12:30AM Sep 24, 2023Observed: 3790.32 ft at 12:45AM Sep 24, 2023Observed: 3790.31 ft at 1:00AM Sep 24, 2023Observed: 3790.33 ft at 1:15AM Sep 24, 2023Observed: 3790.3 ft at 1:30AM Sep 24, 2023Observed: 3790.31 ft at 1:45AM Sep 24, 2023Observed: 3790.31 ft at 2:00AM Sep 24, 2023Observed: 3790.3 ft at 2:15AM Sep 24, 2023Observed: 3790.32 ft at 2:30AM Sep 24, 2023Observed: 3790.31 ft at 2:45AM Sep 24, 2023Observed: 3790.32 ft at 3:00AM Sep 24, 2023Observed: 3790.31 ft at 3:15AM Sep 24, 2023Observed: 3790.31 ft at 3:30AM Sep 24, 2023Observed: 3790.31 ft at 3:45AM Sep 24, 2023Observed: 3790.31 ft at 4:00AM Sep 24, 2023Observed: 3790.32 ft at 4:15AM Sep 24, 2023Observed: 3790.31 ft at 4:30AM Sep 24, 2023Observed: 3790.31 ft at 4:45AM Sep 24, 2023Observed: 3790.32 ft at 5:00AM Sep 24, 2023Observed: 3790.31 ft at 5:15AM Sep 24, 2023Observed: 3790.32 ft at 5:30AM Sep 24, 2023Observed: 3790.32 ft at 5:45AM Sep 24, 2023Observed: 3790.31 ft at 6:00AM Sep 24, 2023Observed: 3790.31 ft at 6:15AM Sep 24, 2023Observed: 3790.31 ft at 6:30AM Sep 24, 2023Observed: 3790.3 ft at 6:45AM Sep 24, 2023Observed: 3790.3 ft at 7:00AM Sep 24, 2023Observed: 3790.3 ft at 7:15AM Sep 24, 2023Observed: 3790.31 ft at 7:30AM Sep 24, 2023Observed: 3790.32 ft at 7:45AM Sep 24, 2023Observed: 3790.31 ft at 8:00AM Sep 24, 2023Observed: 3790.32 ft at 8:15AM Sep 24, 2023Observed: 3790.32 ft at 8:30AM Sep 24, 2023Observed: 3790.32 ft at 8:45AM Sep 24, 2023Observed: 3790.31 ft at 9:00AM Sep 24, 2023Observed: 3790.32 ft at 9:15AM Sep 24, 2023Observed: 3790.33 ft at 9:30AM Sep 24, 2023Observed: 3790.33 ft at 9:45AM Sep 24, 2023Observed: 3790.34 ft at 10:00AM Sep 24, 2023Observed: 3790.33 ft at 10:15AM Sep 24, 2023Observed: 3790.33 ft at 10:30AM Sep 24, 2023Observed: 3790.33 ft at 10:45AM Sep 24, 2023Observed: 3790.32 ft at 11:00AM Sep 24, 2023Observed: 3790.32 ft at 11:15AM Sep 24, 2023Observed: 3790.35 ft at 11:30AM Sep 24, 2023Observed: 3790.35 ft at 11:45AM Sep 24, 2023Observed: 3790.35 ft at 12:00PM Sep 24, 2023Observed: 3790.35 ft at 12:15PM Sep 24, 2023Observed: 3790.33 ft at 12:30PM Sep 24, 2023Observed: 3790.34 ft at 12:45PM Sep 24, 2023Observed: 3790.35 ft at 1:00PM Sep 24, 2023Observed: 3790.34 ft at 1:15PM Sep 24, 2023Observed: 3790.34 ft at 1:30PM Sep 24, 2023Highest Observation: 3790.36 ft at 1:45PM Sep 24, 2023Observed: 3790.35 ft at 2:00PM Sep 24, 2023Observed: 3790.34 ft at 2:15PM Sep 24, 2023Observed: 3790.34 ft at 2:30PM Sep 24, 2023Observed: 3790.33 ft at 2:45PM Sep 24, 2023Observed: 3790.34 ft at 3:00PM Sep 24, 2023Observed: 3790.35 ft at 3:15PM Sep 24, 2023Observed: 3790.34 ft at 3:30PM Sep 24, 2023Observed: 3790.33 ft at 3:45PM Sep 24, 2023Observed: 3790.33 ft at 4:00PM Sep 24, 2023Observed: 3790.33 ft at 4:15PM Sep 24, 2023Observed: 3790.33 ft at 4:30PM Sep 24, 2023Observed: 3790.34 ft at 4:45PM Sep 24, 2023Observed: 3790.34 ft at 5:00PM Sep 24, 2023Observed: 3790.33 ft at 5:15PM Sep 24, 2023Observed: 3790.33 ft at 5:30PM Sep 24, 2023Observed: 3790.32 ft at 5:45PM Sep 24, 2023Observed: 3790.31 ft at 6:00PM Sep 24, 2023Observed: 3790.33 ft at 6:15PM Sep 24, 2023Observed: 3790.33 ft at 6:30PM Sep 24, 2023Observed: 3790.32 ft at 6:45PM Sep 24, 2023Observed: 3790.31 ft at 7:00PM Sep 24, 2023Observed: 3790.29 ft at 7:15PM Sep 24, 2023Observed: 3790.29 ft at 7:30PM Sep 24, 2023Observed: 3790.3 ft at 7:45PM Sep 24, 2023Observed: 3790.32 ft at 8:00PM Sep 24, 2023Observed: 3790.31 ft at 8:15PM Sep 24, 2023Observed: 3790.33 ft at 8:30PM Sep 24, 2023Observed: 3790.32 ft at 8:45PM Sep 24, 2023Observed: 3790.29 ft at 9:00PM Sep 24, 2023Observed: 3790.29 ft at 9:15PM Sep 24, 2023Observed: 3790.3 ft at 9:30PM Sep 24, 2023Observed: 3790.3 ft at 9:45PM Sep 24, 2023Observed: 3790.32 ft at 10:00PM Sep 24, 2023Observed: 3790.32 ft at 10:15PM Sep 24, 2023Observed: 3790.3 ft at 10:30PM Sep 24, 2023Observed: 3790.29 ft at 10:45PM Sep 24, 2023Observed: 3790.29 ft at 11:00PM Sep 24, 2023Observed: 3790.29 ft at 11:15PM Sep 24, 2023Observed: 3790.3 ft at 11:30PM Sep 24, 2023Observed: 3790.31 ft at 11:45PM Sep 24, 2023Observed: 3790.31 ft at 12:00AM Sep 25, 2023Observed: 3790.29 ft at 12:15AM Sep 25, 2023Observed: 3790.28 ft at 12:30AM Sep 25, 2023Observed: 3790.28 ft at 12:45AM Sep 25, 2023Observed: 3790.29 ft at 1:00AM Sep 25, 2023Observed: 3790.31 ft at 1:15AM Sep 25, 2023Observed: 3790.3 ft at 1:30AM Sep 25, 2023Observed: 3790.3 ft at 1:45AM Sep 25, 2023Observed: 3790.28 ft at 2:00AM Sep 25, 2023Observed: 3790.27 ft at 2:15AM Sep 25, 2023Observed: 3790.27 ft at 2:30AM Sep 25, 2023Observed: 3790.29 ft at 2:45AM Sep 25, 2023Observed: 3790.3 ft at 3:00AM Sep 25, 2023Observed: 3790.29 ft at 3:15AM Sep 25, 2023Observed: 3790.3 ft at 3:30AM Sep 25, 2023Observed: 3790.27 ft at 3:45AM Sep 25, 2023Observed: 3790.27 ft at 4:00AM Sep 25, 2023Observed: 3790.27 ft at 4:15AM Sep 25, 2023Observed: 3790.3 ft at 4:30AM Sep 25, 2023Observed: 3790.31 ft at 4:45AM Sep 25, 2023Observed: 3790.31 ft at 5:00AM Sep 25, 2023Observed: 3790.29 ft at 5:15AM Sep 25, 2023Observed: 3790.28 ft at 5:30AM Sep 25, 2023Observed: 3790.28 ft at 5:45AM Sep 25, 2023Observed: 3790.28 ft at 6:00AM Sep 25, 2023Observed: 3790.29 ft at 6:15AM Sep 25, 2023Observed: 3790.31 ft at 6:30AM Sep 25, 2023Observed: 3790.3 ft at 6:45AM Sep 25, 2023Observed: 3790.29 ft at 7:00AM Sep 25, 2023Observed: 3790.27 ft at 7:15AM Sep 25, 2023Observed: 3790.27 ft at 7:30AM Sep 25, 2023Observed: 3790.28 ft at 7:45AM Sep 25, 2023Observed: 3790.3 ft at 8:00AM Sep 25, 2023Observed: 3790.31 ft at 8:15AM Sep 25, 2023Observed: 3790.3 ft at 8:30AM Sep 25, 2023Observed: 3790.29 ft at 8:45AM Sep 25, 2023Observed: 3790.28 ft at 9:00AM Sep 25, 2023Observed: 3790.28 ft at 9:15AM Sep 25, 2023Observed: 3790.29 ft at 9:30AM Sep 25, 2023Observed: 3790.3 ft at 9:45AM Sep 25, 2023Observed: 3790.32 ft at 10:00AM Sep 25, 2023Observed: 3790.31 ft at 10:15AM Sep 25, 2023Observed: 3790.28 ft at 10:30AM Sep 25, 2023Observed: 3790.28 ft at 10:45AM Sep 25, 2023Observed: 3790.27 ft at 11:00AM Sep 25, 2023Observed: 3790.31 ft at 11:15AM Sep 25, 2023Observed: 3790.31 ft at 11:30AM Sep 25, 2023Observed: 3790.31 ft at 11:45AM Sep 25, 2023Observed: 3790.3 ft at 12:00PM Sep 25, 2023Observed: 3790.29 ft at 12:15PM Sep 25, 2023Observed: 3790.29 ft at 12:30PM Sep 25, 2023Observed: 3790.3 ft at 12:45PM Sep 25, 2023Observed: 3790.32 ft at 1:00PM Sep 25, 2023Observed: 3790.31 ft at 2:15PM Sep 25, 2023Observed: 3790.33 ft at 2:30PM Sep 25, 2023Observed: 3790.33 ft at 2:45PM Sep 25, 2023Observed: 3790.34 ft at 3:00PM Sep 25, 2023Observed: 3790.34 ft at 3:15PM Sep 25, 2023Observed: 3790.32 ft at 3:30PM Sep 25, 2023Observed: 3790.32 ft at 3:45PM Sep 25, 2023Observed: 3790.33 ft at 4:00PM Sep 25, 2023Observed: 3790.33 ft at 4:15PM Sep 25, 2023Observed: 3790.31 ft at 4:30PM Sep 25, 2023Observed: 3790.32 ft at 4:45PM Sep 25, 2023Observed: 3790.32 ft at 5:00PM Sep 25, 2023Observed: 3790.31 ft at 5:15PM Sep 25, 2023Observed: 3790.31 ft at 5:30PM Sep 25, 2023Observed: 3790.31 ft at 5:45PM Sep 25, 2023Observed: 3790.31 ft at 6:00PM Sep 25, 2023Observed: 3790.32 ft at 6:15PM Sep 25, 2023Observed: 3790.31 ft at 6:30PM Sep 25, 2023Observed: 3790.3 ft at 6:45PM Sep 25, 2023Observed: 3790.3 ft at 7:00PM Sep 25, 2023Observed: 3790.31 ft at 7:15PM Sep 25, 2023Observed: 3790.31 ft at 7:30PM Sep 25, 2023Observed: 3790.31 ft at 7:45PM Sep 25, 2023Observed: 3790.31 ft at 8:00PM Sep 25, 2023Observed: 3790.32 ft at 8:15PM Sep 25, 2023Observed: 3790.3 ft at 8:30PM Sep 25, 2023Observed: 3790.31 ft at 8:45PM Sep 25, 2023Observed: 3790.31 ft at 9:00PM Sep 25, 2023Observed: 3790.32 ft at 9:15PM Sep 25, 2023Observed: 3790.33 ft at 9:30PM Sep 25, 2023Observed: 3790.31 ft at 9:45PM Sep 25, 2023Observed: 3790.31 ft at 10:00PM Sep 25, 2023Observed: 3790.3 ft at 10:15PM Sep 25, 2023Observed: 3790.31 ft at 10:30PM Sep 25, 2023Observed: 3790.31 ft at 10:45PM Sep 25, 2023Observed: 3790.31 ft at 11:00PM Sep 25, 2023Observed: 3790.32 ft at 11:15PM Sep 25, 2023Observed: 3790.31 ft at 11:30PM Sep 25, 2023Observed: 3790.31 ft at 11:45PM Sep 25, 2023Observed: 3790.31 ft at 12:00AM Sep 26, 2023Observed: 3790.3 ft at 12:15AM Sep 26, 2023Observed: 3790.32 ft at 12:30AM Sep 26, 2023Observed: 3790.32 ft at 12:45AM Sep 26, 2023Observed: 3790.32 ft at 1:00AM Sep 26, 2023Observed: 3790.32 ft at 1:15AM Sep 26, 2023Observed: 3790.32 ft at 1:30AM Sep 26, 2023Observed: 3790.32 ft at 1:45AM Sep 26, 2023Observed: 3790.31 ft at 2:00AM Sep 26, 2023Observed: 3790.32 ft at 2:15AM Sep 26, 2023Observed: 3790.3 ft at 2:30AM Sep 26, 2023Observed: 3790.32 ft at 2:45AM Sep 26, 2023Observed: 3790.32 ft at 3:00AM Sep 26, 2023Observed: 3790.31 ft at 3:15AM Sep 26, 2023Observed: 3790.31 ft at 3:30AM Sep 26, 2023Observed: 3790.31 ft at 3:45AM Sep 26, 2023Observed: 3790.31 ft at 4:00AM Sep 26, 2023Observed: 3790.32 ft at 4:15AM Sep 26, 2023Observed: 3790.33 ft at 4:30AM Sep 26, 2023Observed: 3790.32 ft at 4:45AM Sep 26, 2023Observed: 3790.31 ft at 5:00AM Sep 26, 2023Observed: 3790.32 ft at 5:15AM Sep 26, 2023Observed: 3790.31 ft at 5:30AM Sep 26, 2023Observed: 3790.32 ft at 5:45AM Sep 26, 2023Observed: 3790.33 ft at 6:00AM Sep 26, 2023Observed: 3790.33 ft at 6:15AM Sep 26, 2023Observed: 3790.31 ft at 6:30AM Sep 26, 2023Observed: 3790.3 ft at 6:45AM Sep 26, 2023Observed: 3790.31 ft at 7:00AM Sep 26, 2023Observed: 3790.3 ft at 7:15AM Sep 26, 2023Observed: 3790.32 ft at 7:30AM Sep 26, 2023Observed: 3790.33 ft at 7:45AM Sep 26, 2023Observed: 3790.31 ft at 8:00AM Sep 26, 2023Observed: 3790.31 ft at 8:15AM Sep 26, 2023Observed: 3790.29 ft at 8:30AM Sep 26, 2023Observed: 3790.29 ft at 8:45AM Sep 26, 2023Observed: 3790.29 ft at 9:00AM Sep 26, 2023Observed: 3790.32 ft at 9:15AM Sep 26, 2023Observed: 3790.32 ft at 9:30AM Sep 26, 2023Observed: 3790.3 ft at 9:45AM Sep 26, 2023Observed: 3790.31 ft at 10:00AM Sep 26, 2023Observed: 3790.28 ft at 10:15AM Sep 26, 2023Observed: 3790.29 ft at 10:30AM Sep 26, 2023Observed: 3790.31 ft at 10:45AM Sep 26, 2023Observed: 3790.3 ft at 11:00AM Sep 26, 2023Observed: 3790.3 ft at 11:15AM Sep 26, 2023Observed: 3790.29 ft at 11:30AM Sep 26, 2023Observed: 3790.29 ft at 11:45AM Sep 26, 2023Observed: 3790.26 ft at 12:00PM Sep 26, 2023Observed: 3790.29 ft at 12:15PM Sep 26, 2023Observed: 3790.31 ft at 12:30PM Sep 26, 2023Observed: 3790.29 ft at 12:45PM Sep 26, 2023Observed: 3790.3 ft at 1:00PM Sep 26, 2023Observed: 3790.28 ft at 1:15PM Sep 26, 2023Observed: 3790.27 ft at 1:30PM Sep 26, 2023Observed: 3790.28 ft at 1:45PM Sep 26, 2023Observed: 3790.29 ft at 2:00PM Sep 26, 2023Observed: 3790.29 ft at 2:15PM Sep 26, 2023Observed: 3790.29 ft at 2:30PM Sep 26, 2023Observed: 3790.3 ft at 2:45PM Sep 26, 2023Observed: 3790.28 ft at 3:00PM Sep 26, 2023Observed: 3790.26 ft at 3:15PM Sep 26, 2023Observed: 3790.28 ft at 3:30PM Sep 26, 2023Observed: 3790.28 ft at 3:45PM Sep 26, 2023Observed: 3790.3 ft at 4:00PM Sep 26, 2023Observed: 3790.3 ft at 4:15PM Sep 26, 2023Observed: 3790.29 ft at 4:30PM Sep 26, 2023Observed: 3790.26 ft at 4:45PM Sep 26, 2023Observed: 3790.27 ft at 5:00PM Sep 26, 2023Observed: 3790.29 ft at 5:15PM Sep 26, 2023Observed: 3790.29 ft at 5:30PM Sep 26, 2023Observed: 3790.31 ft at 5:45PM Sep 26, 2023Observed: 3790.31 ft at 6:00PM Sep 26, 2023Observed: 3790.27 ft at 6:15PM Sep 26, 2023Observed: 3790.25 ft at 6:30PM Sep 26, 2023Observed: 3790.25 ft at 6:45PM Sep 26, 2023Observed: 3790.22 ft at 7:00PM Sep 26, 2023Observed: 3790.23 ft at 9:15PM Sep 26, 2023Observed: 3790.24 ft at 9:30PM Sep 26, 2023Observed: 3790.23 ft at 9:45PM Sep 26, 2023Observed: 3790.25 ft at 10:00PM Sep 26, 2023Observed: 3790.22 ft at 10:15PM Sep 26, 2023Observed: 3790.2 ft at 10:30PM Sep 26, 2023Observed: 3790.22 ft at 10:45PM Sep 26, 2023Observed: 3790.22 ft at 11:00PM Sep 26, 2023Observed: 3790.25 ft at 11:15PM Sep 26, 2023Observed: 3790.27 ft at 11:30PM Sep 26, 2023Observed: 3790.24 ft at 11:45PM Sep 26, 2023Observed: 3790.25 ft at 12:00AM Sep 27, 2023Observed: 3790.23 ft at 12:15AM Sep 27, 2023Observed: 3790.24 ft at 12:30AM Sep 27, 2023Observed: 3790.25 ft at 12:45AM Sep 27, 2023Observed: 3790.25 ft at 1:00AM Sep 27, 2023Observed: 3790.25 ft at 1:15AM Sep 27, 2023Observed: 3790.26 ft at 1:30AM Sep 27, 2023Observed: 3790.25 ft at 1:45AM Sep 27, 2023Observed: 3790.22 ft at 2:00AM Sep 27, 2023Observed: 3790.26 ft at 2:15AM Sep 27, 2023Observed: 3790.25 ft at 2:30AM Sep 27, 2023Observed: 3790.26 ft at 2:45AM Sep 27, 2023Observed: 3790.26 ft at 3:00AM Sep 27, 2023Observed: 3790.25 ft at 3:15AM Sep 27, 2023Observed: 3790.25 ft at 3:30AM Sep 27, 2023Observed: 3790.26 ft at 3:45AM Sep 27, 2023Observed: 3790.26 ft at 4:00AM Sep 27, 2023CYNM8(plotting HPIRG) Graph Created (4:08AM Oct 2, 2023)ObservedLatest observed value: 3790.26 ft at 4:00 AM MDT 27-Sep-2023.
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About this graph
Tabular Data (UTC)
Tabular Data (MDT)
XML Data
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Datum: Not Available
Metadata
NOTE: Forecasts are not available for the Missouri River at Canyon Ferry Reservoir. Only observed stages are available for this point.
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Upstream Gauge - at Toston Upstream Gauge Downstream Gauge Downstream Gauge - below Hauser Dam near Helena
Flood Categories (in feet)
Major Flood Stage: 0
Moderate Flood Stage: 0
Flood Stage: 0
Action Stage: 3800
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.
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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
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3800 At 3800 Feet...Canyon Ferry Reservoir would start to flood. (June 2017)
3797 At 3797 Feet...Canyon Ferry Reservoir is full. It becomes a pass thru. (June 2017)
3782 Per Bureau of Reclamation, water levels below 3782 feet make lauching of a boat too low to safely launch a boat at Silos South Ramp boat launch location. (April 2018)
3781 Per Bureau of Reclamation, water levels below 3781 feet make lauching of a boat too low to safely launch a boat at White Earth boat launch location. (April 2018)
3780 Per Bureau of Reclamation, water levels below 3780 feet make lauching of a boat too low to safely launch a boat at Silos North Ramp and Kims Marina launch locations. (April 2018)
3777 Per Bureau of Reclamation, water levels below 3777 feet make lauching of a boat too low to safely launch a boat at Yacht Basin Ramp location. (April 2018)
About This Location Collapse

Latitude: 46.649167° N, Longitude: 111.727500° 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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