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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
St. Marys River at Moniac Stage (ft)Flow (kcfs)Observed: 5.42 ft at 4:15AM Sep 21, 2023Observed: 5.42 ft at 4:30AM Sep 21, 2023Observed: 5.42 ft at 4:45AM Sep 21, 2023Observed: 5.42 ft at 5:00AM Sep 21, 2023Observed: 5.42 ft at 5:15AM Sep 21, 2023Observed: 5.42 ft at 5:30AM Sep 21, 2023Observed: 5.42 ft at 5:45AM Sep 21, 2023Observed: 5.42 ft at 6:00AM Sep 21, 2023Observed: 5.42 ft at 6:15AM Sep 21, 2023Observed: 5.41 ft at 6:30AM Sep 21, 2023Observed: 5.41 ft at 6:45AM Sep 21, 2023Observed: 5.41 ft at 7:00AM Sep 21, 2023Observed: 5.41 ft at 7:15AM Sep 21, 2023Observed: 5.41 ft at 7:30AM Sep 21, 2023Observed: 5.41 ft at 7:45AM Sep 21, 2023Observed: 5.41 ft at 8:00AM Sep 21, 2023Observed: 5.41 ft at 8:15AM Sep 21, 2023Observed: 5.41 ft at 8:30AM Sep 21, 2023Observed: 5.41 ft at 8:45AM Sep 21, 2023Observed: 5.41 ft at 9:00AM Sep 21, 2023Observed: 5.41 ft at 9:15AM Sep 21, 2023Observed: 5.41 ft at 9:30AM Sep 21, 2023Observed: 5.41 ft at 9:45AM Sep 21, 2023Observed: 5.41 ft at 10:00AM Sep 21, 2023Observed: 5.41 ft at 10:15AM Sep 21, 2023Observed: 5.41 ft at 10:30AM Sep 21, 2023Observed: 5.41 ft at 10:45AM Sep 21, 2023Observed: 5.41 ft at 11:00AM Sep 21, 2023Observed: 5.41 ft at 11:15AM Sep 21, 2023Observed: 5.4 ft at 11:30AM Sep 21, 2023Observed: 5.41 ft at 11:45AM Sep 21, 2023Observed: 5.41 ft at 12:00PM Sep 21, 2023Observed: 5.4 ft at 12:15PM Sep 21, 2023Observed: 5.4 ft at 12:30PM Sep 21, 2023Observed: 5.4 ft at 12:45PM Sep 21, 2023Observed: 5.4 ft at 1:00PM Sep 21, 2023Observed: 5.4 ft at 1:15PM Sep 21, 2023Observed: 5.4 ft at 1:30PM Sep 21, 2023Observed: 5.4 ft at 1:45PM Sep 21, 2023Observed: 5.4 ft at 2:00PM Sep 21, 2023Observed: 5.37 ft at 2:15PM Sep 21, 2023Observed: 5.39 ft at 2:30PM Sep 21, 2023Observed: 5.39 ft at 2:45PM Sep 21, 2023Observed: 5.4 ft at 3:00PM Sep 21, 2023Observed: 5.39 ft at 3:15PM Sep 21, 2023Observed: 5.39 ft at 3:30PM Sep 21, 2023Observed: 5.39 ft at 3:45PM Sep 21, 2023Observed: 5.39 ft at 4:00PM Sep 21, 2023Observed: 5.39 ft at 4:15PM Sep 21, 2023Observed: 5.38 ft at 4:30PM Sep 21, 2023Observed: 5.38 ft at 4:45PM Sep 21, 2023Observed: 5.39 ft at 5:00PM Sep 21, 2023Observed: 5.39 ft at 5:15PM Sep 21, 2023Observed: 5.39 ft at 5:30PM Sep 21, 2023Observed: 5.39 ft at 5:45PM Sep 21, 2023Observed: 5.38 ft at 6:00PM Sep 21, 2023Observed: 5.39 ft at 6:15PM Sep 21, 2023Observed: 5.38 ft at 6:30PM Sep 21, 2023Observed: 5.38 ft at 6:45PM Sep 21, 2023Observed: 5.38 ft at 8:00PM Sep 21, 2023Observed: 5.38 ft at 8:15PM Sep 21, 2023Observed: 5.38 ft at 8:30PM Sep 21, 2023Observed: 5.38 ft at 8:45PM Sep 21, 2023Observed: 5.38 ft at 9:00PM Sep 21, 2023Observed: 5.37 ft at 9:15PM Sep 21, 2023Observed: 5.37 ft at 9:30PM Sep 21, 2023Observed: 5.37 ft at 9:45PM Sep 21, 2023Observed: 5.37 ft at 10:00PM Sep 21, 2023Observed: 5.37 ft at 10:15PM Sep 21, 2023Observed: 5.37 ft at 10:30PM Sep 21, 2023Observed: 5.37 ft at 10:45PM Sep 21, 2023Observed: 5.37 ft at 11:00PM Sep 21, 2023Observed: 5.36 ft at 11:15PM Sep 21, 2023Observed: 5.37 ft at 11:30PM Sep 21, 2023Observed: 5.36 ft at 11:45PM Sep 21, 2023Observed: 5.37 ft at 12:00AM Sep 22, 2023Observed: 5.37 ft at 12:15AM Sep 22, 2023Observed: 5.37 ft at 12:30AM Sep 22, 2023Observed: 5.37 ft at 12:45AM Sep 22, 2023Observed: 5.36 ft at 1:00AM Sep 22, 2023Observed: 5.36 ft at 1:15AM Sep 22, 2023Observed: 5.36 ft at 1:30AM Sep 22, 2023Observed: 5.36 ft at 1:45AM Sep 22, 2023Observed: 5.36 ft at 2:00AM Sep 22, 2023Observed: 5.36 ft at 2:15AM Sep 22, 2023Observed: 5.36 ft at 2:30AM Sep 22, 2023Observed: 5.36 ft at 2:45AM Sep 22, 2023Observed: 5.36 ft at 3:00AM Sep 22, 2023Observed: 5.36 ft at 3:15AM Sep 22, 2023Observed: 5.36 ft at 3:30AM Sep 22, 2023Observed: 5.36 ft at 3:45AM Sep 22, 2023Observed: 5.36 ft at 4:00AM Sep 22, 2023Observed: 5.36 ft at 4:15AM Sep 22, 2023Observed: 5.35 ft at 4:30AM Sep 22, 2023Observed: 5.35 ft at 4:45AM Sep 22, 2023Observed: 5.36 ft at 5:00AM Sep 22, 2023Observed: 5.35 ft at 5:15AM Sep 22, 2023Observed: 5.36 ft at 5:30AM Sep 22, 2023Observed: 5.36 ft at 5:45AM Sep 22, 2023Observed: 5.35 ft at 6:00AM Sep 22, 2023Observed: 5.35 ft at 6:15AM Sep 22, 2023Observed: 5.36 ft at 6:30AM Sep 22, 2023Observed: 5.35 ft at 6:45AM Sep 22, 2023Observed: 5.35 ft at 7:00AM Sep 22, 2023Observed: 5.35 ft at 7:15AM Sep 22, 2023Observed: 5.35 ft at 7:30AM Sep 22, 2023Observed: 5.35 ft at 7:45AM Sep 22, 2023Observed: 5.35 ft at 8:00AM Sep 22, 2023Observed: 5.35 ft at 8:15AM Sep 22, 2023Observed: 5.35 ft at 8:30AM Sep 22, 2023Observed: 5.35 ft at 8:45AM Sep 22, 2023Observed: 5.35 ft at 9:00AM Sep 22, 2023Observed: 5.35 ft at 9:15AM Sep 22, 2023Observed: 5.35 ft at 9:30AM Sep 22, 2023Observed: 5.35 ft at 9:45AM Sep 22, 2023Observed: 5.35 ft at 10:00AM Sep 22, 2023Observed: 5.35 ft at 10:15AM Sep 22, 2023Observed: 5.35 ft at 10:30AM Sep 22, 2023Observed: 5.35 ft at 10:45AM Sep 22, 2023Observed: 5.35 ft at 11:00AM Sep 22, 2023Observed: 5.35 ft at 11:15AM Sep 22, 2023Observed: 5.35 ft at 11:30AM Sep 22, 2023Observed: 5.35 ft at 11:45AM Sep 22, 2023Observed: 5.35 ft at 12:00PM Sep 22, 2023Observed: 5.35 ft at 12:15PM Sep 22, 2023Observed: 5.35 ft at 12:30PM Sep 22, 2023Observed: 5.34 ft at 12:45PM Sep 22, 2023Observed: 5.34 ft at 1:00PM Sep 22, 2023Observed: 5.34 ft at 1:15PM Sep 22, 2023Observed: 5.33 ft at 1:30PM Sep 22, 2023Observed: 5.34 ft at 1:45PM Sep 22, 2023Observed: 5.34 ft at 2:00PM Sep 22, 2023Observed: 5.34 ft at 2:15PM Sep 22, 2023Observed: 5.34 ft at 2:30PM Sep 22, 2023Observed: 5.34 ft at 2:45PM Sep 22, 2023Observed: 5.34 ft at 3:00PM Sep 22, 2023Observed: 5.34 ft at 3:15PM Sep 22, 2023Observed: 5.34 ft at 3:30PM Sep 22, 2023Observed: 5.34 ft at 3:45PM Sep 22, 2023Observed: 5.33 ft at 4:00PM Sep 22, 2023Observed: 5.34 ft at 4:15PM Sep 22, 2023Observed: 5.33 ft at 4:30PM Sep 22, 2023Observed: 5.33 ft at 4:45PM Sep 22, 2023Observed: 5.33 ft at 5:00PM Sep 22, 2023Observed: 5.33 ft at 5:15PM Sep 22, 2023Observed: 5.33 ft at 5:30PM Sep 22, 2023Observed: 5.33 ft at 5:45PM Sep 22, 2023Observed: 5.32 ft at 7:00PM Sep 22, 2023Observed: 5.32 ft at 7:15PM Sep 22, 2023Observed: 5.32 ft at 7:30PM Sep 22, 2023Observed: 5.32 ft at 7:45PM Sep 22, 2023Observed: 5.32 ft at 8:00PM Sep 22, 2023Observed: 5.32 ft at 8:15PM Sep 22, 2023Observed: 5.32 ft at 8:30PM Sep 22, 2023Observed: 5.31 ft at 8:45PM Sep 22, 2023Observed: 5.31 ft at 9:00PM Sep 22, 2023Observed: 5.31 ft at 9:15PM Sep 22, 2023Observed: 5.31 ft at 9:30PM Sep 22, 2023Observed: 5.31 ft at 9:45PM Sep 22, 2023Observed: 5.31 ft at 10:00PM Sep 22, 2023Observed: 5.3 ft at 10:15PM Sep 22, 2023Observed: 5.3 ft at 10:30PM Sep 22, 2023Observed: 5.3 ft at 10:45PM Sep 22, 2023Observed: 5.3 ft at 11:00PM Sep 22, 2023Observed: 5.3 ft at 11:15PM Sep 22, 2023Observed: 5.3 ft at 11:30PM Sep 22, 2023Observed: 5.3 ft at 11:45PM Sep 22, 2023Observed: 5.3 ft at 12:00AM Sep 23, 2023Observed: 5.3 ft at 12:15AM Sep 23, 2023Observed: 5.3 ft at 12:30AM Sep 23, 2023Observed: 5.3 ft at 12:45AM Sep 23, 2023Observed: 5.3 ft at 1:00AM Sep 23, 2023Observed: 5.29 ft at 1:15AM Sep 23, 2023Observed: 5.29 ft at 1:30AM Sep 23, 2023Observed: 5.29 ft at 1:45AM Sep 23, 2023Observed: 5.29 ft at 2:00AM Sep 23, 2023Observed: 5.29 ft at 2:15AM Sep 23, 2023Observed: 5.29 ft at 2:30AM Sep 23, 2023Observed: 5.29 ft at 2:45AM Sep 23, 2023Observed: 5.29 ft at 3:00AM Sep 23, 2023Observed: 5.29 ft at 3:15AM Sep 23, 2023Observed: 5.29 ft at 3:30AM Sep 23, 2023Observed: 5.29 ft at 3:45AM Sep 23, 2023Observed: 5.28 ft at 4:00AM Sep 23, 2023Observed: 5.28 ft at 4:15AM Sep 23, 2023Observed: 5.28 ft at 4:30AM Sep 23, 2023Observed: 5.28 ft at 4:45AM Sep 23, 2023Observed: 5.28 ft at 5:00AM Sep 23, 2023Observed: 5.28 ft at 5:15AM Sep 23, 2023Observed: 5.28 ft at 5:30AM Sep 23, 2023Observed: 5.28 ft at 5:45AM Sep 23, 2023Observed: 5.28 ft at 6:00AM Sep 23, 2023Observed: 5.28 ft at 6:15AM Sep 23, 2023Observed: 5.28 ft at 6:30AM Sep 23, 2023Observed: 5.28 ft at 6:45AM Sep 23, 2023Observed: 5.12 ft at 10:00AM Sep 25, 2023Observed: 5.12 ft at 10:15AM Sep 25, 2023Observed: 5.12 ft at 10:30AM Sep 25, 2023Observed: 5.12 ft at 10:45AM Sep 25, 2023Observed: 5.12 ft at 11:00AM Sep 25, 2023Observed: 5.12 ft at 11:15AM Sep 25, 2023Observed: 5.11 ft at 11:30AM Sep 25, 2023Observed: 5.12 ft at 11:45AM Sep 25, 2023Observed: 5.11 ft at 12:00PM Sep 25, 2023Observed: 5.11 ft at 12:15PM Sep 25, 2023Observed: 5.11 ft at 12:30PM Sep 25, 2023Observed: 5.11 ft at 12:45PM Sep 25, 2023Observed: 5.11 ft at 1:00PM Sep 25, 2023Observed: 5.11 ft at 1:15PM Sep 25, 2023Observed: 5.11 ft at 1:30PM Sep 25, 2023Observed: 5.11 ft at 1:45PM Sep 25, 2023Observed: 5.11 ft at 2:00PM Sep 25, 2023Observed: 5.11 ft at 2:15PM Sep 25, 2023Observed: 5.11 ft at 2:30PM Sep 25, 2023Observed: 5.11 ft at 2:45PM Sep 25, 2023Observed: 5.11 ft at 3:00PM Sep 25, 2023Observed: 5.11 ft at 3:15PM Sep 25, 2023Observed: 5.11 ft at 3:30PM Sep 25, 2023Observed: 5.11 ft at 3:45PM Sep 25, 2023Observed: 5.1 ft at 4:00PM Sep 25, 2023Observed: 5.11 ft at 4:15PM Sep 25, 2023Observed: 5.11 ft at 4:30PM Sep 25, 2023Observed: 5.11 ft at 4:45PM Sep 25, 2023Observed: 5.11 ft at 5:00PM Sep 25, 2023Observed: 5.11 ft at 5:15PM Sep 25, 2023Observed: 5.11 ft at 5:30PM Sep 25, 2023Observed: 5.11 ft at 5:45PM Sep 25, 2023Observed: 5.11 ft at 6:00PM Sep 25, 2023Observed: 5.1 ft at 6:15PM Sep 25, 2023Observed: 5.1 ft at 6:30PM Sep 25, 2023Observed: 5.08 ft at 6:45PM Sep 25, 2023Observed: 5.06 ft at 7:00PM Sep 25, 2023Observed: 5.06 ft at 7:15PM Sep 25, 2023Observed: 5.05 ft at 7:30PM Sep 25, 2023Observed: 5.04 ft at 7:45PM Sep 25, 2023Observed: 5.04 ft at 8:00PM Sep 25, 2023Observed: 5.04 ft at 8:15PM Sep 25, 2023Observed: 5.04 ft at 8:30PM Sep 25, 2023Observed: 5.04 ft at 8:45PM Sep 25, 2023Observed: 5.04 ft at 9:00PM Sep 25, 2023Observed: 5.04 ft at 9:15PM Sep 25, 2023Observed: 5.04 ft at 9:30PM Sep 25, 2023Observed: 5.04 ft at 9:45PM Sep 25, 2023Observed: 5.04 ft at 10:00PM Sep 25, 2023Observed: 5.04 ft at 10:15PM Sep 25, 2023Observed: 5.04 ft at 10:30PM Sep 25, 2023Observed: 5.04 ft at 10:45PM Sep 25, 2023Observed: 5.03 ft at 12:00AM Sep 26, 2023Observed: 5.03 ft at 12:15AM Sep 26, 2023Observed: 5.03 ft at 12:30AM Sep 26, 2023Observed: 5.03 ft at 12:45AM Sep 26, 2023Observed: 5.03 ft at 1:00AM Sep 26, 2023Observed: 5.03 ft at 1:15AM Sep 26, 2023Observed: 5.03 ft at 1:30AM Sep 26, 2023Observed: 5.03 ft at 1:45AM Sep 26, 2023Observed: 5.03 ft at 2:00AM Sep 26, 2023Observed: 5.03 ft at 2:15AM Sep 26, 2023Observed: 5.02 ft at 2:30AM Sep 26, 2023Observed: 5.03 ft at 2:45AM Sep 26, 2023Observed: 5.02 ft at 3:00AM Sep 26, 2023Observed: 5.02 ft at 3:15AM Sep 26, 2023Observed: 5.02 ft at 3:30AM Sep 26, 2023Observed: 5.02 ft at 3:45AM Sep 26, 2023Observed: 5.02 ft at 4:00AM Sep 26, 2023Observed: 5.02 ft at 4:15AM Sep 26, 2023Observed: 5.02 ft at 4:30AM Sep 26, 2023Observed: 5.02 ft at 4:45AM Sep 26, 2023Observed: 5.02 ft at 5:00AM Sep 26, 2023Observed: 5.02 ft at 5:15AM Sep 26, 2023Observed: 5.02 ft at 5:30AM Sep 26, 2023Observed: 5.02 ft at 5:45AM Sep 26, 2023Observed: 5.02 ft at 7:00AM Sep 26, 2023Observed: 5.02 ft at 7:15AM Sep 26, 2023Observed: 5.02 ft at 7:30AM Sep 26, 2023Observed: 5.02 ft at 7:45AM Sep 26, 2023Observed: 5.02 ft at 8:00AM Sep 26, 2023Observed: 5.02 ft at 8:15AM Sep 26, 2023Observed: 5.02 ft at 8:30AM Sep 26, 2023Observed: 5.02 ft at 8:45AM Sep 26, 2023Observed: 5.02 ft at 9:00AM Sep 26, 2023Observed: 5.02 ft at 9:15AM Sep 26, 2023Observed: 5.02 ft at 9:30AM Sep 26, 2023Observed: 5.02 ft at 9:45AM Sep 26, 2023Observed: 5.02 ft at 10:00AM Sep 26, 2023Observed: 5.02 ft at 10:15AM Sep 26, 2023Observed: 5.02 ft at 10:30AM Sep 26, 2023Observed: 5.02 ft at 10:45AM Sep 26, 2023Observed: 5.02 ft at 11:00AM Sep 26, 2023Observed: 5.02 ft at 11:15AM Sep 26, 2023Observed: 5.02 ft at 11:30AM Sep 26, 2023Observed: 5.01 ft at 11:45AM Sep 26, 2023Observed: 5.02 ft at 12:00PM Sep 26, 2023Observed: 5.02 ft at 12:15PM Sep 26, 2023Observed: 5.01 ft at 12:30PM Sep 26, 2023Observed: 5.01 ft at 12:45PM Sep 26, 2023Observed: 5.01 ft at 1:00PM Sep 26, 2023Observed: 5.01 ft at 1:15PM Sep 26, 2023Observed: 5.01 ft at 1:30PM Sep 26, 2023Observed: 5.01 ft at 1:45PM Sep 26, 2023Observed: 5.01 ft at 2:00PM Sep 26, 2023Observed: 5.02 ft at 2:15PM Sep 26, 2023Observed: 5.01 ft at 2:30PM Sep 26, 2023Observed: 5.01 ft at 2:45PM Sep 26, 2023Observed: 5.01 ft at 3:00PM Sep 26, 2023Observed: 5.01 ft at 3:15PM Sep 26, 2023Observed: 5.02 ft at 3:30PM Sep 26, 2023Observed: 5.02 ft at 3:45PM Sep 26, 2023Observed: 5.02 ft at 4:00PM Sep 26, 2023Observed: 4.96 ft at 4:15PM Sep 26, 2023Observed: 5.02 ft at 4:30PM Sep 26, 2023Observed: 5.06 ft at 4:45PM Sep 26, 2023Observed: 5.08 ft at 5:00PM Sep 26, 2023Observed: 5.08 ft at 5:15PM Sep 26, 2023Observed: 5.07 ft at 5:30PM Sep 26, 2023Observed: 5.07 ft at 5:45PM Sep 26, 2023Observed: 5.07 ft at 6:00PM Sep 26, 2023Observed: 5.08 ft at 6:15PM Sep 26, 2023Observed: 5.09 ft at 6:30PM Sep 26, 2023Observed: 5.09 ft at 6:45PM Sep 26, 2023Observed: 5.09 ft at 7:00PM Sep 26, 2023Observed: 5.1 ft at 7:15PM Sep 26, 2023Observed: 5.1 ft at 7:30PM Sep 26, 2023Observed: 5.11 ft at 7:45PM Sep 26, 2023Observed: 5.12 ft at 8:00PM Sep 26, 2023Observed: 5.12 ft at 8:15PM Sep 26, 2023Observed: 5.12 ft at 8:30PM Sep 26, 2023Observed: 5.13 ft at 8:45PM Sep 26, 2023Observed: 5.15 ft at 10:00PM Sep 26, 2023Observed: 5.15 ft at 10:15PM Sep 26, 2023Observed: 5.15 ft at 10:30PM Sep 26, 2023Observed: 5.16 ft at 10:45PM Sep 26, 2023Observed: 5.16 ft at 11:00PM Sep 26, 2023Observed: 5.17 ft at 11:15PM Sep 26, 2023Observed: 5.17 ft at 11:30PM Sep 26, 2023Observed: 5.18 ft at 11:45PM Sep 26, 2023Observed: 5.18 ft at 12:00AM Sep 27, 2023Observed: 5.18 ft at 12:15AM Sep 27, 2023Observed: 5.19 ft at 12:30AM Sep 27, 2023Observed: 5.2 ft at 12:45AM Sep 27, 2023Observed: 5.2 ft at 1:00AM Sep 27, 2023Observed: 5.21 ft at 1:15AM Sep 27, 2023Observed: 5.21 ft at 1:30AM Sep 27, 2023Observed: 5.22 ft at 1:45AM Sep 27, 2023Observed: 5.23 ft at 2:00AM Sep 27, 2023Observed: 5.23 ft at 2:15AM Sep 27, 2023Observed: 5.24 ft at 2:30AM Sep 27, 2023Observed: 5.25 ft at 2:45AM Sep 27, 2023Observed: 5.25 ft at 3:00AM Sep 27, 2023Observed: 5.26 ft at 3:15AM Sep 27, 2023Observed: 5.27 ft at 3:30AM Sep 27, 2023Observed: 5.28 ft at 3:45AM Sep 27, 2023Observed: 5.28 ft at 4:00AM Sep 27, 2023Observed: 5.29 ft at 4:15AM Sep 27, 2023Observed: 5.3 ft at 4:30AM Sep 27, 2023Observed: 5.3 ft at 4:45AM Sep 27, 2023Observed: 5.31 ft at 5:00AM Sep 27, 2023Observed: 5.32 ft at 5:15AM Sep 27, 2023Observed: 5.32 ft at 5:30AM Sep 27, 2023Observed: 5.33 ft at 5:45AM Sep 27, 2023Observed: 5.34 ft at 6:00AM Sep 27, 2023Observed: 5.34 ft at 6:15AM Sep 27, 2023Observed: 5.35 ft at 6:30AM Sep 27, 2023Observed: 5.35 ft at 6:45AM Sep 27, 2023Observed: 5.36 ft at 7:00AM Sep 27, 2023Observed: 5.36 ft at 7:15AM Sep 27, 2023Observed: 5.37 ft at 7:30AM Sep 27, 2023Observed: 5.37 ft at 7:45AM Sep 27, 2023Observed: 5.38 ft at 8:00AM Sep 27, 2023Observed: 5.38 ft at 8:15AM Sep 27, 2023Observed: 5.38 ft at 8:30AM Sep 27, 2023Observed: 5.39 ft at 8:45AM Sep 27, 2023Observed: 5.39 ft at 9:00AM Sep 27, 2023Observed: 5.4 ft at 9:15AM Sep 27, 2023Observed: 5.4 ft at 9:30AM Sep 27, 2023Observed: 5.41 ft at 9:45AM Sep 27, 2023Observed: 5.41 ft at 10:00AM Sep 27, 2023Observed: 5.42 ft at 10:15AM Sep 27, 2023Observed: 5.42 ft at 10:30AM Sep 27, 2023Observed: 5.42 ft at 10:45AM Sep 27, 2023Observed: 5.43 ft at 11:00AM Sep 27, 2023Observed: 5.43 ft at 11:15AM Sep 27, 2023Observed: 5.44 ft at 11:30AM Sep 27, 2023Observed: 5.44 ft at 11:45AM Sep 27, 2023Observed: 5.44 ft at 12:00PM Sep 27, 2023Observed: 5.45 ft at 12:15PM Sep 27, 2023Observed: 5.45 ft at 12:30PM Sep 27, 2023Observed: 5.45 ft at 12:45PM Sep 27, 2023Observed: 5.46 ft at 1:00PM Sep 27, 2023Observed: 5.46 ft at 1:15PM Sep 27, 2023Observed: 5.47 ft at 1:30PM Sep 27, 2023Observed: 5.47 ft at 1:45PM Sep 27, 2023Observed: 5.48 ft at 2:00PM Sep 27, 2023Observed: 5.48 ft at 2:15PM Sep 27, 2023Observed: 5.48 ft at 2:30PM Sep 27, 2023Observed: 5.49 ft at 2:45PM Sep 27, 2023Observed: 5.49 ft at 3:00PM Sep 27, 2023Observed: 5.49 ft at 3:15PM Sep 27, 2023Observed: 5.5 ft at 3:30PM Sep 27, 2023Observed: 5.5 ft at 3:45PM Sep 27, 2023Observed: 5.5 ft at 4:00PM Sep 27, 2023Observed: 5.51 ft at 4:15PM Sep 27, 2023Observed: 5.51 ft at 4:30PM Sep 27, 2023Observed: 5.51 ft at 4:45PM Sep 27, 2023Observed: 5.51 ft at 5:00PM Sep 27, 2023Observed: 5.51 ft at 5:15PM Sep 27, 2023Observed: 5.52 ft at 5:30PM Sep 27, 2023Observed: 5.52 ft at 5:45PM Sep 27, 2023Observed: 5.52 ft at 6:00PM Sep 27, 2023Observed: 5.52 ft at 6:15PM Sep 27, 2023Observed: 5.53 ft at 6:30PM Sep 27, 2023Observed: 5.53 ft at 6:45PM Sep 27, 2023Observed: 5.53 ft at 7:00PM Sep 27, 2023Observed: 5.54 ft at 7:15PM Sep 27, 2023Observed: 5.54 ft at 7:30PM Sep 27, 2023Observed: 5.54 ft at 7:45PM Sep 27, 2023Observed: 5.54 ft at 8:00PM Sep 27, 2023Observed: 5.54 ft at 8:15PM Sep 27, 2023Observed: 5.55 ft at 8:30PM Sep 27, 2023Observed: 5.55 ft at 8:45PM Sep 27, 2023Observed: 5.55 ft at 9:00PM Sep 27, 2023Observed: 5.55 ft at 9:15PM Sep 27, 2023Observed: 5.56 ft at 9:30PM Sep 27, 2023Observed: 5.56 ft at 9:45PM Sep 27, 2023Observed: 5.56 ft at 10:00PM Sep 27, 2023Observed: 5.56 ft at 10:15PM Sep 27, 2023Observed: 5.56 ft at 10:30PM Sep 27, 2023Observed: 5.57 ft at 10:45PM Sep 27, 2023Observed: 5.57 ft at 11:00PM Sep 27, 2023Observed: 5.57 ft at 11:15PM Sep 27, 2023Observed: 5.58 ft at 11:30PM Sep 27, 2023Observed: 5.58 ft at 11:45PM Sep 27, 2023Observed: 5.58 ft at 12:00AM Sep 28, 2023Observed: 5.58 ft at 12:15AM Sep 28, 2023Observed: 5.58 ft at 12:30AM Sep 28, 2023Observed: 5.58 ft at 12:45AM Sep 28, 2023Observed: 5.58 ft at 1:00AM Sep 28, 2023Observed: 5.59 ft at 1:15AM Sep 28, 2023Observed: 5.58 ft at 1:30AM Sep 28, 2023Observed: 5.58 ft at 1:45AM Sep 28, 2023Observed: 5.59 ft at 2:00AM Sep 28, 2023Observed: 5.59 ft at 2:15AM Sep 28, 2023Observed: 5.59 ft at 2:30AM Sep 28, 2023Observed: 5.59 ft at 2:45AM Sep 28, 2023Observed: 5.59 ft at 3:00AM Sep 28, 2023Observed: 5.6 ft at 3:15AM Sep 28, 2023Observed: 5.6 ft at 3:30AM Sep 28, 2023Observed: 5.6 ft at 3:45AM Sep 28, 2023Observed: 5.6 ft at 4:00AM Sep 28, 2023Observed: 5.6 ft at 4:15AM Sep 28, 2023Observed: 5.6 ft at 4:30AM Sep 28, 2023Observed: 5.6 ft at 4:45AM Sep 28, 2023Observed: 5.6 ft at 5:00AM Sep 28, 2023Observed: 5.6 ft at 5:15AM Sep 28, 2023Observed: 5.6 ft at 5:30AM Sep 28, 2023Observed: 5.6 ft at 5:45AM Sep 28, 2023Observed: 5.61 ft at 6:00AM Sep 28, 2023Observed: 5.61 ft at 6:15AM Sep 28, 2023Observed: 5.61 ft at 6:30AM Sep 28, 2023Observed: 5.61 ft at 6:45AM Sep 28, 2023Observed: 5.61 ft at 7:00AM Sep 28, 2023Observed: 5.61 ft at 7:15AM Sep 28, 2023Observed: 5.61 ft at 7:30AM Sep 28, 2023Observed: 5.62 ft at 7:45AM Sep 28, 2023Observed: 5.61 ft at 8:00AM Sep 28, 2023Observed: 5.61 ft at 8:15AM Sep 28, 2023Observed: 5.62 ft at 8:30AM Sep 28, 2023Observed: 5.62 ft at 8:45AM Sep 28, 2023Observed: 5.62 ft at 9:00AM Sep 28, 2023Observed: 5.62 ft at 9:15AM Sep 28, 2023Observed: 5.62 ft at 9:30AM Sep 28, 2023Observed: 5.62 ft at 9:45AM Sep 28, 2023Observed: 5.62 ft at 10:00AM Sep 28, 2023Observed: 5.63 ft at 10:15AM Sep 28, 2023Observed: 5.63 ft at 10:30AM Sep 28, 2023Observed: 5.62 ft at 10:45AM Sep 28, 2023Observed: 5.62 ft at 11:00AM Sep 28, 2023Observed: 5.63 ft at 11:15AM Sep 28, 2023Observed: 5.63 ft at 11:30AM Sep 28, 2023Observed: 5.63 ft at 11:45AM Sep 28, 2023Observed: 5.63 ft at 12:00PM Sep 28, 2023Observed: 5.63 ft at 12:15PM Sep 28, 2023Observed: 5.63 ft at 12:30PM Sep 28, 2023Observed: 5.64 ft at 12:45PM Sep 28, 2023Observed: 5.63 ft at 1:00PM Sep 28, 2023Observed: 5.64 ft at 1:15PM Sep 28, 2023Observed: 5.64 ft at 1:30PM Sep 28, 2023Observed: 5.64 ft at 1:45PM Sep 28, 2023Observed: 5.64 ft at 2:00PM Sep 28, 2023Observed: 5.64 ft at 2:15PM Sep 28, 2023Observed: 5.65 ft at 2:30PM Sep 28, 2023Observed: 5.64 ft at 2:45PM Sep 28, 2023Observed: 5.65 ft at 3:00PM Sep 28, 2023Observed: 5.64 ft at 3:15PM Sep 28, 2023Observed: 5.64 ft at 3:30PM Sep 28, 2023Observed: 5.64 ft at 3:45PM Sep 28, 2023Observed: 5.64 ft at 4:00PM Sep 28, 2023Observed: 5.65 ft at 4:15PM Sep 28, 2023Observed: 5.65 ft at 4:30PM Sep 28, 2023Observed: 5.65 ft at 4:45PM Sep 28, 2023Observed: 5.65 ft at 5:00PM Sep 28, 2023Observed: 5.65 ft at 5:15PM Sep 28, 2023Observed: 5.65 ft at 5:30PM Sep 28, 2023Observed: 5.65 ft at 5:45PM Sep 28, 2023Observed: 5.65 ft at 6:00PM Sep 28, 2023Observed: 5.65 ft at 6:15PM Sep 28, 2023Observed: 5.65 ft at 6:30PM Sep 28, 2023Observed: 5.65 ft at 6:45PM Sep 28, 2023Observed: 5.65 ft at 7:00PM Sep 28, 2023Observed: 5.66 ft at 7:15PM Sep 28, 2023Observed: 5.66 ft at 7:30PM Sep 28, 2023Observed: 5.66 ft at 7:45PM Sep 28, 2023Observed: 5.66 ft at 8:00PM Sep 28, 2023Observed: 5.66 ft at 8:15PM Sep 28, 2023Observed: 5.66 ft at 8:30PM Sep 28, 2023Observed: 5.66 ft at 8:45PM Sep 28, 2023Observed: 5.67 ft at 9:00PM Sep 28, 2023Observed: 5.67 ft at 9:15PM Sep 28, 2023Observed: 5.67 ft at 9:30PM Sep 28, 2023Observed: 5.67 ft at 9:45PM Sep 28, 2023Observed: 5.67 ft at 10:00PM Sep 28, 2023Observed: 5.67 ft at 10:15PM Sep 28, 2023Observed: 5.68 ft at 10:30PM Sep 28, 2023Observed: 5.68 ft at 10:45PM Sep 28, 2023Observed: 5.68 ft at 11:00PM Sep 28, 2023Observed: 5.68 ft at 11:15PM Sep 28, 2023Observed: 5.69 ft at 11:30PM Sep 28, 2023Observed: 5.69 ft at 11:45PM Sep 28, 2023Observed: 5.69 ft at 12:00AM Sep 29, 2023Observed: 5.69 ft at 12:15AM Sep 29, 2023Observed: 5.7 ft at 12:30AM Sep 29, 2023Observed: 5.7 ft at 12:45AM Sep 29, 2023Observed: 5.7 ft at 1:00AM Sep 29, 2023Observed: 5.71 ft at 1:15AM Sep 29, 2023Observed: 5.71 ft at 1:30AM Sep 29, 2023Observed: 5.71 ft at 1:45AM Sep 29, 2023Observed: 5.72 ft at 2:00AM Sep 29, 2023Observed: 5.72 ft at 2:15AM Sep 29, 2023Observed: 5.73 ft at 2:30AM Sep 29, 2023Observed: 5.73 ft at 2:45AM Sep 29, 2023Observed: 5.73 ft at 3:00AM Sep 29, 2023Observed: 5.74 ft at 3:15AM Sep 29, 2023Observed: 5.74 ft at 3:30AM Sep 29, 2023Observed: 5.75 ft at 3:45AM Sep 29, 2023Observed: 5.75 ft at 4:00AM Sep 29, 2023Observed: 5.75 ft at 4:15AM Sep 29, 2023Observed: 5.76 ft at 4:30AM Sep 29, 2023Observed: 5.76 ft at 4:45AM Sep 29, 2023Observed: 5.77 ft at 5:00AM Sep 29, 2023Observed: 5.77 ft at 5:15AM Sep 29, 2023Observed: 5.78 ft at 5:30AM Sep 29, 2023Observed: 5.78 ft at 5:45AM Sep 29, 2023Observed: 5.79 ft at 6:00AM Sep 29, 2023Observed: 5.79 ft at 6:15AM Sep 29, 2023Observed: 5.8 ft at 6:30AM Sep 29, 2023Observed: 5.81 ft at 6:45AM Sep 29, 2023Observed: 5.81 ft at 7:00AM Sep 29, 2023Observed: 5.81 ft at 7:15AM Sep 29, 2023Observed: 5.82 ft at 7:30AM Sep 29, 2023Observed: 5.83 ft at 7:45AM Sep 29, 2023Observed: 5.83 ft at 8:00AM Sep 29, 2023Observed: 5.84 ft at 8:15AM Sep 29, 2023Observed: 5.85 ft at 8:30AM Sep 29, 2023Observed: 5.84 ft at 8:45AM Sep 29, 2023Observed: 5.86 ft at 9:00AM Sep 29, 2023Observed: 5.86 ft at 9:15AM Sep 29, 2023Observed: 5.87 ft at 9:30AM Sep 29, 2023Observed: 5.87 ft at 9:45AM Sep 29, 2023Observed: 5.88 ft at 10:00AM Sep 29, 2023Observed: 5.89 ft at 10:15AM Sep 29, 2023Observed: 5.89 ft at 10:30AM Sep 29, 2023Observed: 5.9 ft at 10:45AM Sep 29, 2023Observed: 5.91 ft at 11:00AM Sep 29, 2023Observed: 5.91 ft at 11:15AM Sep 29, 2023Observed: 5.92 ft at 11:30AM Sep 29, 2023Observed: 5.93 ft at 11:45AM Sep 29, 2023Observed: 5.93 ft at 12:00PM Sep 29, 2023Observed: 5.93 ft at 12:15PM Sep 29, 2023Observed: 5.95 ft at 12:30PM Sep 29, 2023Observed: 5.96 ft at 12:45PM Sep 29, 2023Observed: 5.96 ft at 1:00PM Sep 29, 2023Observed: 5.97 ft at 1:15PM Sep 29, 2023Observed: 5.97 ft at 1:30PM Sep 29, 2023Observed: 5.98 ft at 1:45PM Sep 29, 2023Observed: 5.98 ft at 2:00PM Sep 29, 2023Observed: 5.99 ft at 2:15PM Sep 29, 2023Observed: 5.99 ft at 2:30PM Sep 29, 2023Observed: 6 ft at 2:45PM Sep 29, 2023Observed: 6.01 ft at 3:00PM Sep 29, 2023Observed: 6.01 ft at 3:15PM Sep 29, 2023Observed: 6.02 ft at 3:30PM Sep 29, 2023Observed: 6.02 ft at 3:45PM Sep 29, 2023Observed: 6.03 ft at 4:00PM Sep 29, 2023Observed: 6.04 ft at 4:15PM Sep 29, 2023Observed: 6.04 ft at 4:30PM Sep 29, 2023Observed: 6.05 ft at 4:45PM Sep 29, 2023Observed: 6.06 ft at 5:00PM Sep 29, 2023Observed: 6.06 ft at 5:15PM Sep 29, 2023Observed: 6.07 ft at 5:30PM Sep 29, 2023Observed: 6.07 ft at 5:45PM Sep 29, 2023Observed: 6.08 ft at 6:00PM Sep 29, 2023Observed: 6.08 ft at 6:15PM Sep 29, 2023Observed: 6.09 ft at 6:30PM Sep 29, 2023Observed: 6.1 ft at 6:45PM Sep 29, 2023Observed: 6.11 ft at 7:00PM Sep 29, 2023Observed: 6.11 ft at 7:15PM Sep 29, 2023Observed: 6.12 ft at 7:30PM Sep 29, 2023Observed: 6.13 ft at 7:45PM Sep 29, 2023Observed: 6.14 ft at 8:00PM Sep 29, 2023Observed: 6.14 ft at 8:15PM Sep 29, 2023Observed: 6.14 ft at 8:30PM Sep 29, 2023Observed: 6.15 ft at 8:45PM Sep 29, 2023Observed: 6.16 ft at 9:00PM Sep 29, 2023Observed: 6.16 ft at 9:15PM Sep 29, 2023Observed: 6.17 ft at 9:30PM Sep 29, 2023Observed: 6.17 ft at 9:45PM Sep 29, 2023Observed: 6.17 ft at 10:00PM Sep 29, 2023Observed: 6.18 ft at 10:15PM Sep 29, 2023Observed: 6.19 ft at 10:30PM Sep 29, 2023Observed: 6.19 ft at 10:45PM Sep 29, 2023Observed: 6.2 ft at 11:00PM Sep 29, 2023Observed: 6.21 ft at 11:15PM Sep 29, 2023Observed: 6.21 ft at 11:30PM Sep 29, 2023Observed: 6.22 ft at 11:45PM Sep 29, 2023Observed: 6.23 ft at 12:00AM Sep 30, 2023Observed: 6.23 ft at 12:15AM Sep 30, 2023Observed: 6.24 ft at 12:30AM Sep 30, 2023Observed: 6.25 ft at 12:45AM Sep 30, 2023Observed: 6.25 ft at 1:00AM Sep 30, 2023Observed: 6.26 ft at 1:15AM Sep 30, 2023Observed: 6.28 ft at 1:30AM Sep 30, 2023Observed: 6.29 ft at 1:45AM Sep 30, 2023Observed: 6.3 ft at 2:00AM Sep 30, 2023Observed: 6.3 ft at 2:15AM Sep 30, 2023Observed: 6.3 ft at 2:30AM Sep 30, 2023Observed: 6.31 ft at 2:45AM Sep 30, 2023Observed: 6.31 ft at 3:00AM Sep 30, 2023Observed: 6.31 ft at 3:15AM Sep 30, 2023Highest Observation: 6.32 ft at 3:30AM Sep 30, 2023Highest Observation: 6.32 ft at 3:45AM Sep 30, 2023USGS--Water Resources of the United StatesMNIG1(plotting HGIRG) Graph Created (4:09AM Sep 30, 2023)ObservedLatest observed value: 6.32 ft at 3:45 AM EDT 30-Sep-2023. Flood Stage is 12 ft
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About this graph
Tabular Data (UTC)
Tabular Data (EDT)
XML Data
RSS Files
Datum: NGVD29
Metadata
NOTE: Forecasts are not available for the St. Marys River at Moniac. Only observed stages are available for this point.

Vertical datum height surveyed by the USGS

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Downstream Gauge Downstream Gauge - near Macclenny
Flood Categories (in feet)
Major Flood Stage: 17
Moderate Flood Stage: 15
Flood Stage: 12
Action Stage: 10
Low Stage (in feet): 4.2

Historic Crests
(1) 22.98 ft on 04/05/1973
(2) 19.90 ft on 09/19/1928
(3) 19.15 ft on 08/24/2008
(4) 18.69 ft on 06/28/2012
(5) 18.41 ft on 09/13/1964
(6) 17.78 ft on 09/09/2004
(7) 17.57 ft on 03/30/1970
(8) 17.51 ft on 09/13/2017
(9) 17.03 ft on 02/18/1998
(10) 16.38 ft on 09/29/2004 (P)
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 12.32 ft on 09/04/2022
(2) 13.00 ft on 04/18/2022
(3) 12.38 ft on 04/09/2022
(4) 12.72 ft on 03/14/2022
(5) 12.22 ft on 11/08/2021
(6) 12.05 ft on 09/20/2021
(7) 15.53 ft on 08/07/2021
(8) 13.90 ft on 07/08/2021
(9) 12.44 ft on 08/13/2020
(10) 12.30 ft on 06/13/2020
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
(1) 3.52 ft on 07/10/2011
(2) 3.67 ft on 06/25/1955
(3) 3.78 ft on 06/28/1954
(4) 3.86 ft on 05/13/1934
(5) 3.88 ft on 06/07/1927
Show More Low Water Records

For more information on your flood risk go to www.floodsmart.gov.
Zoom Level:14
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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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17 Trailers and houses on both sides of the river become endangered.
15 Flooding begins to impact Mocassin Creek Circle on Florida side with some portions of the road becoming cut-off. Access roads on both sides of the river in Florida and Georgia begin to flood.
14 Bethea State Forest campground sites completely flooded on Florida side and water begins to enter campground parking lot.
12 Bethea State Forest campground sites begin to flood on the Florida side just north of the gage.
About This Location Collapse

Latitude: 30.517500° N, Longitude: 82.230556° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame		 Gauge Height Flood Stage Uses
NWS stage 0 ft 12 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 89.40 Not Available Older USGS topographic maps, NGVD29 benchmarks
MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks
Other Not Available Not Available USGS NWIS

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
Jacksonville Weather Forecast Office
13701 Fang Drive
Jacksonville, FL 32218
(904) 741-4370
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