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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 near Macclenny Stage (ft)Flow (kcfs)Observed: 3.14 ft at 10:45PM Sep 29, 2023Observed: 3.14 ft at 11:00PM Sep 29, 2023Observed: 3.14 ft at 11:15PM Sep 29, 2023Observed: 3.14 ft at 11:30PM Sep 29, 2023Observed: 3.14 ft at 11:45PM Sep 29, 2023Observed: 3.14 ft at 12:00AM Sep 30, 2023Observed: 3.14 ft at 12:15AM Sep 30, 2023Observed: 3.14 ft at 12:30AM Sep 30, 2023Observed: 3.14 ft at 12:45AM Sep 30, 2023Observed: 3.14 ft at 1:00AM Sep 30, 2023Observed: 3.14 ft at 1:15AM Sep 30, 2023Observed: 3.14 ft at 1:30AM Sep 30, 2023Observed: 3.14 ft at 1:45AM Sep 30, 2023Observed: 3.14 ft at 2:00AM Sep 30, 2023Observed: 3.14 ft at 2:15AM Sep 30, 2023Observed: 3.14 ft at 2:30AM Sep 30, 2023Observed: 3.14 ft at 2:45AM Sep 30, 2023Observed: 3.14 ft at 3:00AM Sep 30, 2023Observed: 3.13 ft at 3:15AM Sep 30, 2023Observed: 3.13 ft at 3:30AM Sep 30, 2023Observed: 3.13 ft at 3:45AM Sep 30, 2023Observed: 3.13 ft at 4:00AM Sep 30, 2023Observed: 3.13 ft at 4:15AM Sep 30, 2023Observed: 3.13 ft at 4:30AM Sep 30, 2023Observed: 3.13 ft at 4:45AM Sep 30, 2023Observed: 3.13 ft at 5:00AM Sep 30, 2023Observed: 3.13 ft at 5:15AM Sep 30, 2023Observed: 3.13 ft at 5:30AM Sep 30, 2023Observed: 3.13 ft at 5:45AM Sep 30, 2023Observed: 3.13 ft at 6:00AM Sep 30, 2023Observed: 3.13 ft at 6:15AM Sep 30, 2023Observed: 3.13 ft at 6:30AM Sep 30, 2023Observed: 3.13 ft at 6:45AM Sep 30, 2023Observed: 3.13 ft at 7:00AM Sep 30, 2023Observed: 3.13 ft at 7:15AM Sep 30, 2023Observed: 3.13 ft at 7:30AM Sep 30, 2023Observed: 3.13 ft at 7:45AM Sep 30, 2023Observed: 3.13 ft at 8:00AM Sep 30, 2023Observed: 3.13 ft at 8:15AM Sep 30, 2023Observed: 3.13 ft at 8:30AM Sep 30, 2023Observed: 3.12 ft at 8:45AM Sep 30, 2023Observed: 3.12 ft at 9:00AM Sep 30, 2023Observed: 3.12 ft at 9:15AM Sep 30, 2023Observed: 3.12 ft at 9:30AM Sep 30, 2023Observed: 3.12 ft at 9:45AM Sep 30, 2023Observed: 3.12 ft at 10:00AM Sep 30, 2023Observed: 3.13 ft at 10:15AM Sep 30, 2023Observed: 3.12 ft at 10:30AM Sep 30, 2023Observed: 3.12 ft at 10:45AM Sep 30, 2023Observed: 3.12 ft at 11:00AM Sep 30, 2023Observed: 3.12 ft at 11:15AM Sep 30, 2023Observed: 3.12 ft at 11:30AM Sep 30, 2023Observed: 3.12 ft at 11:45AM Sep 30, 2023Observed: 3.12 ft at 12:00PM Sep 30, 2023Observed: 3.13 ft at 12:15PM Sep 30, 2023Observed: 3.12 ft at 12:30PM Sep 30, 2023Observed: 3.13 ft at 12:45PM Sep 30, 2023Observed: 3.12 ft at 1:00PM Sep 30, 2023Observed: 3.12 ft at 1:15PM Sep 30, 2023Observed: 3.12 ft at 1:30PM Sep 30, 2023Observed: 3.12 ft at 1:45PM Sep 30, 2023Observed: 3.12 ft at 2:00PM Sep 30, 2023Observed: 3.12 ft at 2:15PM Sep 30, 2023Observed: 3.13 ft at 2:30PM Sep 30, 2023Observed: 3.12 ft at 2:45PM Sep 30, 2023Observed: 3.13 ft at 3:00PM Sep 30, 2023Observed: 3.13 ft at 3:15PM Sep 30, 2023Observed: 3.13 ft at 3:30PM Sep 30, 2023Observed: 3.13 ft at 3:45PM Sep 30, 2023Observed: 3.13 ft at 4:00PM Sep 30, 2023Observed: 3.13 ft at 4:15PM Sep 30, 2023Observed: 3.13 ft at 4:30PM Sep 30, 2023Observed: 3.13 ft at 4:45PM Sep 30, 2023Observed: 3.13 ft at 5:00PM Sep 30, 2023Observed: 3.13 ft at 5:15PM Sep 30, 2023Observed: 3.13 ft at 5:30PM Sep 30, 2023Observed: 3.13 ft at 5:45PM Sep 30, 2023Observed: 3.13 ft at 6:00PM Sep 30, 2023Observed: 3.13 ft at 6:15PM Sep 30, 2023Observed: 3.13 ft at 6:30PM Sep 30, 2023Observed: 3.13 ft at 6:45PM Sep 30, 2023Observed: 3.13 ft at 7:00PM Sep 30, 2023Observed: 3.13 ft at 7:15PM Sep 30, 2023Observed: 3.13 ft at 7:30PM Sep 30, 2023Observed: 3.13 ft at 7:45PM Sep 30, 2023Observed: 3.13 ft at 8:00PM Sep 30, 2023Observed: 3.13 ft at 8:15PM Sep 30, 2023Observed: 3.13 ft at 8:30PM Sep 30, 2023Observed: 3.13 ft at 8:45PM Sep 30, 2023Observed: 3.13 ft at 9:00PM Sep 30, 2023Observed: 3.13 ft at 9:15PM Sep 30, 2023Observed: 3.13 ft at 9:30PM Sep 30, 2023Observed: 3.13 ft at 9:45PM Sep 30, 2023Observed: 3.13 ft at 10:00PM Sep 30, 2023Observed: 3.13 ft at 10:15PM Sep 30, 2023Observed: 3.13 ft at 10:30PM Sep 30, 2023Observed: 3.13 ft at 10:45PM Sep 30, 2023Observed: 3.13 ft at 11:00PM Sep 30, 2023Observed: 3.14 ft at 11:15PM Sep 30, 2023Observed: 3.14 ft at 11:30PM Sep 30, 2023Observed: 3.14 ft at 11:45PM Sep 30, 2023Observed: 3.14 ft at 12:00AM Oct 01, 2023Observed: 3.14 ft at 12:15AM Oct 01, 2023Observed: 3.14 ft at 12:30AM Oct 01, 2023Observed: 3.14 ft at 12:45AM Oct 01, 2023Observed: 3.14 ft at 1:00AM Oct 01, 2023Observed: 3.14 ft at 1:15AM Oct 01, 2023Observed: 3.14 ft at 1:30AM Oct 01, 2023Observed: 3.14 ft at 1:45AM Oct 01, 2023Observed: 3.14 ft at 2:00AM Oct 01, 2023Observed: 3.15 ft at 2:15AM Oct 01, 2023Observed: 3.15 ft at 2:30AM Oct 01, 2023Observed: 3.15 ft at 2:45AM Oct 01, 2023Observed: 3.15 ft at 3:00AM Oct 01, 2023Observed: 3.15 ft at 3:15AM Oct 01, 2023Observed: 3.15 ft at 3:30AM Oct 01, 2023Observed: 3.15 ft at 3:45AM Oct 01, 2023Observed: 3.15 ft at 4:00AM Oct 01, 2023Observed: 3.15 ft at 4:15AM Oct 01, 2023Observed: 3.16 ft at 4:30AM Oct 01, 2023Observed: 3.16 ft at 4:45AM Oct 01, 2023Observed: 3.16 ft at 5:00AM Oct 01, 2023Observed: 3.16 ft at 5:15AM Oct 01, 2023Observed: 3.16 ft at 5:30AM Oct 01, 2023Observed: 3.16 ft at 5:45AM Oct 01, 2023Observed: 3.16 ft at 6:00AM Oct 01, 2023Observed: 3.16 ft at 6:15AM Oct 01, 2023Observed: 3.17 ft at 6:30AM Oct 01, 2023Observed: 3.17 ft at 6:45AM Oct 01, 2023Observed: 3.17 ft at 7:00AM Oct 01, 2023Observed: 3.17 ft at 7:15AM Oct 01, 2023Observed: 3.17 ft at 7:30AM Oct 01, 2023Observed: 3.17 ft at 7:45AM Oct 01, 2023Observed: 3.17 ft at 8:00AM Oct 01, 2023Observed: 3.17 ft at 8:15AM Oct 01, 2023Observed: 3.17 ft at 8:30AM Oct 01, 2023Observed: 3.17 ft at 8:45AM Oct 01, 2023Observed: 3.18 ft at 9:00AM Oct 01, 2023Observed: 3.18 ft at 9:15AM Oct 01, 2023Observed: 3.18 ft at 9:30AM Oct 01, 2023Observed: 3.18 ft at 9:45AM Oct 01, 2023Observed: 3.18 ft at 10:00AM Oct 01, 2023Observed: 3.18 ft at 10:15AM Oct 01, 2023Observed: 3.19 ft at 10:30AM Oct 01, 2023Observed: 3.19 ft at 10:45AM Oct 01, 2023Observed: 3.19 ft at 11:00AM Oct 01, 2023Observed: 3.19 ft at 11:15AM Oct 01, 2023Observed: 3.19 ft at 11:30AM Oct 01, 2023Observed: 3.19 ft at 11:45AM Oct 01, 2023Observed: 3.2 ft at 12:00PM Oct 01, 2023Observed: 3.2 ft at 12:15PM Oct 01, 2023Observed: 3.2 ft at 12:30PM Oct 01, 2023Observed: 3.2 ft at 12:45PM Oct 01, 2023Observed: 3.2 ft at 1:00PM Oct 01, 2023Observed: 3.2 ft at 1:15PM Oct 01, 2023Observed: 3.2 ft at 1:30PM Oct 01, 2023Observed: 3.2 ft at 1:45PM Oct 01, 2023Observed: 3.2 ft at 2:00PM Oct 01, 2023Observed: 3.2 ft at 2:15PM Oct 01, 2023Observed: 3.21 ft at 2:30PM Oct 01, 2023Observed: 3.21 ft at 2:45PM Oct 01, 2023Observed: 3.21 ft at 3:00PM Oct 01, 2023Observed: 3.21 ft at 3:15PM Oct 01, 2023Observed: 3.21 ft at 3:30PM Oct 01, 2023Observed: 3.21 ft at 3:45PM Oct 01, 2023Observed: 3.21 ft at 4:00PM Oct 01, 2023Observed: 3.21 ft at 4:15PM Oct 01, 2023Observed: 3.21 ft at 4:30PM Oct 01, 2023Observed: 3.21 ft at 4:45PM Oct 01, 2023Observed: 3.22 ft at 5:00PM Oct 01, 2023Observed: 3.22 ft at 5:15PM Oct 01, 2023Observed: 3.22 ft at 5:30PM Oct 01, 2023Observed: 3.22 ft at 5:45PM Oct 01, 2023Observed: 3.22 ft at 6:00PM Oct 01, 2023Observed: 3.22 ft at 6:15PM Oct 01, 2023Observed: 3.22 ft at 6:30PM Oct 01, 2023Observed: 3.22 ft at 6:45PM Oct 01, 2023Observed: 3.22 ft at 7:00PM Oct 01, 2023Observed: 3.22 ft at 7:15PM Oct 01, 2023Observed: 3.22 ft at 7:30PM Oct 01, 2023Observed: 3.22 ft at 7:45PM Oct 01, 2023Observed: 3.22 ft at 8:00PM Oct 01, 2023Observed: 3.22 ft at 8:15PM Oct 01, 2023Observed: 3.22 ft at 8:30PM Oct 01, 2023Observed: 3.22 ft at 8:45PM Oct 01, 2023Observed: 3.22 ft at 9:00PM Oct 01, 2023Observed: 3.22 ft at 9:15PM Oct 01, 2023Observed: 3.22 ft at 9:30PM Oct 01, 2023Observed: 3.22 ft at 9:45PM Oct 01, 2023Observed: 3.22 ft at 10:00PM Oct 01, 2023Observed: 3.22 ft at 10:15PM Oct 01, 2023Observed: 3.22 ft at 10:30PM Oct 01, 2023Observed: 3.22 ft at 10:45PM Oct 01, 2023Observed: 3.22 ft at 11:00PM Oct 01, 2023Observed: 3.22 ft at 11:15PM Oct 01, 2023Observed: 3.22 ft at 11:30PM Oct 01, 2023Observed: 3.22 ft at 11:45PM Oct 01, 2023Observed: 3.22 ft at 12:00AM Oct 02, 2023Observed: 3.22 ft at 12:15AM Oct 02, 2023Observed: 3.22 ft at 12:30AM Oct 02, 2023Observed: 3.22 ft at 12:45AM Oct 02, 2023Observed: 3.22 ft at 1:00AM Oct 02, 2023Observed: 3.22 ft at 1:15AM Oct 02, 2023Observed: 3.22 ft at 1:30AM Oct 02, 2023Observed: 3.22 ft at 1:45AM Oct 02, 2023Observed: 3.22 ft at 2:00AM Oct 02, 2023Observed: 3.22 ft at 2:15AM Oct 02, 2023Observed: 3.22 ft at 2:30AM Oct 02, 2023Observed: 3.22 ft at 2:45AM Oct 02, 2023Observed: 3.22 ft at 3:00AM Oct 02, 2023Observed: 3.22 ft at 3:15AM Oct 02, 2023Observed: 3.22 ft at 3:30AM Oct 02, 2023Observed: 3.22 ft at 3:45AM Oct 02, 2023Observed: 3.22 ft at 4:00AM Oct 02, 2023Observed: 3.22 ft at 4:15AM Oct 02, 2023Observed: 3.22 ft at 4:30AM Oct 02, 2023Observed: 3.22 ft at 4:45AM Oct 02, 2023Observed: 3.22 ft at 5:00AM Oct 02, 2023Observed: 3.22 ft at 5:15AM Oct 02, 2023Observed: 3.22 ft at 5:30AM Oct 02, 2023Observed: 3.22 ft at 5:45AM Oct 02, 2023Observed: 3.22 ft at 6:00AM Oct 02, 2023Observed: 3.21 ft at 6:15AM Oct 02, 2023Observed: 3.21 ft at 6:30AM Oct 02, 2023Observed: 3.21 ft at 6:45AM Oct 02, 2023Observed: 3.21 ft at 7:00AM Oct 02, 2023Observed: 3.21 ft at 7:15AM Oct 02, 2023Observed: 3.21 ft at 7:30AM Oct 02, 2023Observed: 3.21 ft at 7:45AM Oct 02, 2023Observed: 3.21 ft at 8:00AM Oct 02, 2023Observed: 3.21 ft at 8:15AM Oct 02, 2023Observed: 3.21 ft at 8:30AM Oct 02, 2023Observed: 3.21 ft at 8:45AM Oct 02, 2023Observed: 3.21 ft at 9:00AM Oct 02, 2023Observed: 3.21 ft at 9:15AM Oct 02, 2023Observed: 3.21 ft at 9:30AM Oct 02, 2023Observed: 3.21 ft at 9:45AM Oct 02, 2023Observed: 3.2 ft at 10:00AM Oct 02, 2023Observed: 3.21 ft at 10:15AM Oct 02, 2023Observed: 3.2 ft at 10:30AM Oct 02, 2023Observed: 3.2 ft at 10:45AM Oct 02, 2023Observed: 3.2 ft at 11:00AM Oct 02, 2023Observed: 3.21 ft at 11:15AM Oct 02, 2023Observed: 3.2 ft at 11:30AM Oct 02, 2023Observed: 3.2 ft at 11:45AM Oct 02, 2023Observed: 3.2 ft at 12:00PM Oct 02, 2023Observed: 3.2 ft at 12:15PM Oct 02, 2023Observed: 3.2 ft at 12:30PM Oct 02, 2023Observed: 3.2 ft at 12:45PM Oct 02, 2023Observed: 3.2 ft at 1:00PM Oct 02, 2023Observed: 3.2 ft at 1:15PM Oct 02, 2023Observed: 3.2 ft at 1:30PM Oct 02, 2023Observed: 3.2 ft at 1:45PM Oct 02, 2023Observed: 3.2 ft at 2:00PM Oct 02, 2023Observed: 3.2 ft at 2:15PM Oct 02, 2023Observed: 3.19 ft at 2:30PM Oct 02, 2023Observed: 3.2 ft at 2:45PM Oct 02, 2023Observed: 3.19 ft at 3:00PM Oct 02, 2023Observed: 3.19 ft at 3:15PM Oct 02, 2023Observed: 3.19 ft at 3:30PM Oct 02, 2023Observed: 3.19 ft at 3:45PM Oct 02, 2023Observed: 3.19 ft at 4:00PM Oct 02, 2023Observed: 3.19 ft at 4:15PM Oct 02, 2023Observed: 3.19 ft at 4:30PM Oct 02, 2023Observed: 3.19 ft at 4:45PM Oct 02, 2023Observed: 3.19 ft at 5:00PM Oct 02, 2023Observed: 3.19 ft at 5:15PM Oct 02, 2023Observed: 3.19 ft at 5:30PM Oct 02, 2023Observed: 3.19 ft at 5:45PM Oct 02, 2023Observed: 3.18 ft at 6:00PM Oct 02, 2023Observed: 3.18 ft at 6:15PM Oct 02, 2023Observed: 3.18 ft at 6:30PM Oct 02, 2023Observed: 3.18 ft at 6:45PM Oct 02, 2023Observed: 3.18 ft at 7:00PM Oct 02, 2023Observed: 3.18 ft at 7:15PM Oct 02, 2023Observed: 3.18 ft at 7:30PM Oct 02, 2023Observed: 3.17 ft at 7:45PM Oct 02, 2023Observed: 3.17 ft at 8:00PM Oct 02, 2023Observed: 3.17 ft at 8:15PM Oct 02, 2023Observed: 3.17 ft at 8:30PM Oct 02, 2023Observed: 3.17 ft at 8:45PM Oct 02, 2023Observed: 3.17 ft at 9:00PM Oct 02, 2023Observed: 3.17 ft at 9:15PM Oct 02, 2023Observed: 3.16 ft at 9:30PM Oct 02, 2023Observed: 3.16 ft at 9:45PM Oct 02, 2023Observed: 3.16 ft at 10:00PM Oct 02, 2023Observed: 3.16 ft at 10:15PM Oct 02, 2023Observed: 3.16 ft at 10:30PM Oct 02, 2023Observed: 3.16 ft at 10:45PM Oct 02, 2023Observed: 3.16 ft at 11:00PM Oct 02, 2023Observed: 3.16 ft at 11:15PM Oct 02, 2023Observed: 3.16 ft at 11:30PM Oct 02, 2023Observed: 3.15 ft at 11:45PM Oct 02, 2023Observed: 3.15 ft at 12:00AM Oct 03, 2023Observed: 3.15 ft at 12:15AM Oct 03, 2023Observed: 3.15 ft at 12:30AM Oct 03, 2023Observed: 3.15 ft at 12:45AM Oct 03, 2023Observed: 3.15 ft at 1:00AM Oct 03, 2023Observed: 3.15 ft at 1:15AM Oct 03, 2023Observed: 3.14 ft at 1:30AM Oct 03, 2023Observed: 3.14 ft at 1:45AM Oct 03, 2023Observed: 3.14 ft at 2:00AM Oct 03, 2023Observed: 3.14 ft at 2:15AM Oct 03, 2023Observed: 3.14 ft at 2:30AM Oct 03, 2023Observed: 3.14 ft at 2:45AM Oct 03, 2023Observed: 3.14 ft at 3:00AM Oct 03, 2023Observed: 3.14 ft at 3:15AM Oct 03, 2023Observed: 3.13 ft at 3:30AM Oct 03, 2023Observed: 3.13 ft at 3:45AM Oct 03, 2023Observed: 3.13 ft at 4:00AM Oct 03, 2023Observed: 3.13 ft at 4:15AM Oct 03, 2023Observed: 3.13 ft at 4:30AM Oct 03, 2023Observed: 3.13 ft at 4:45AM Oct 03, 2023Observed: 3.13 ft at 5:00AM Oct 03, 2023Observed: 3.13 ft at 5:15AM Oct 03, 2023Observed: 3.12 ft at 5:30AM Oct 03, 2023Observed: 3.12 ft at 5:45AM Oct 03, 2023Observed: 3.12 ft at 6:00AM Oct 03, 2023Observed: 3.12 ft at 6:15AM Oct 03, 2023Observed: 3.12 ft at 6:30AM Oct 03, 2023Observed: 3.12 ft at 6:45AM Oct 03, 2023Observed: 3.11 ft at 7:00AM Oct 03, 2023Observed: 3.11 ft at 7:15AM Oct 03, 2023Observed: 3.11 ft at 7:30AM Oct 03, 2023Observed: 3.11 ft at 7:45AM Oct 03, 2023Observed: 3.11 ft at 8:00AM Oct 03, 2023Observed: 3.11 ft at 8:15AM Oct 03, 2023Observed: 3.1 ft at 8:30AM Oct 03, 2023Observed: 3.1 ft at 8:45AM Oct 03, 2023Observed: 3.1 ft at 9:00AM Oct 03, 2023Observed: 3.1 ft at 9:15AM Oct 03, 2023Observed: 3.1 ft at 9:30AM Oct 03, 2023Observed: 3.1 ft at 9:45AM Oct 03, 2023Observed: 3.09 ft at 10:00AM Oct 03, 2023Highest Observation: 3.29 ft at 10:15AM Oct 03, 2023Highest Observation: 3.29 ft at 10:30AM Oct 03, 2023Highest Observation: 3.29 ft at 10:45AM Oct 03, 2023Highest Observation: 3.29 ft at 11:00AM Oct 03, 2023Highest Observation: 3.29 ft at 11:15AM Oct 03, 2023Observed: 3.28 ft at 11:30AM Oct 03, 2023Observed: 3.28 ft at 11:45AM Oct 03, 2023Highest Observation: 3.29 ft at 12:00PM Oct 03, 2023Observed: 3.28 ft at 12:15PM Oct 03, 2023Observed: 3.28 ft at 12:30PM Oct 03, 2023Observed: 3.28 ft at 12:45PM Oct 03, 2023Observed: 3.27 ft at 1:00PM Oct 03, 2023Observed: 3.28 ft at 1:15PM Oct 03, 2023Observed: 3.27 ft at 1:30PM Oct 03, 2023Observed: 3.28 ft at 1:45PM Oct 03, 2023Observed: 3.27 ft at 2:00PM Oct 03, 2023Observed: 3.27 ft at 2:15PM Oct 03, 2023Observed: 3.27 ft at 2:30PM Oct 03, 2023Observed: 3.27 ft at 2:45PM Oct 03, 2023Observed: 3.27 ft at 3:00PM Oct 03, 2023Observed: 3.27 ft at 3:15PM Oct 03, 2023Observed: 3.26 ft at 3:30PM Oct 03, 2023Observed: 3.26 ft at 3:45PM Oct 03, 2023Observed: 3.26 ft at 4:00PM Oct 03, 2023Observed: 3.26 ft at 4:15PM Oct 03, 2023Observed: 3.26 ft at 4:30PM Oct 03, 2023Observed: 3.26 ft at 4:45PM Oct 03, 2023Observed: 3.26 ft at 5:00PM Oct 03, 2023Observed: 3.26 ft at 5:15PM Oct 03, 2023Observed: 3.25 ft at 5:30PM Oct 03, 2023Observed: 3.25 ft at 5:45PM Oct 03, 2023Observed: 3.25 ft at 6:00PM Oct 03, 2023Observed: 3.25 ft at 6:15PM Oct 03, 2023Observed: 3.25 ft at 6:30PM Oct 03, 2023Observed: 3.25 ft at 6:45PM Oct 03, 2023Observed: 3.25 ft at 7:00PM Oct 03, 2023Observed: 3.24 ft at 7:15PM Oct 03, 2023Observed: 3.24 ft at 7:30PM Oct 03, 2023Observed: 3.24 ft at 7:45PM Oct 03, 2023Observed: 3.24 ft at 8:00PM Oct 03, 2023Observed: 3.24 ft at 8:15PM Oct 03, 2023Observed: 3.24 ft at 8:30PM Oct 03, 2023Observed: 3.23 ft at 8:45PM Oct 03, 2023Observed: 3.23 ft at 9:00PM Oct 03, 2023Observed: 3.23 ft at 9:15PM Oct 03, 2023Observed: 3.23 ft at 9:30PM Oct 03, 2023Observed: 3.23 ft at 9:45PM Oct 03, 2023Observed: 3.23 ft at 10:00PM Oct 03, 2023Observed: 3.22 ft at 10:15PM Oct 03, 2023Observed: 3.22 ft at 10:30PM Oct 03, 2023Observed: 3.22 ft at 10:45PM Oct 03, 2023Observed: 3.22 ft at 11:00PM Oct 03, 2023Observed: 3.22 ft at 11:15PM Oct 03, 2023Observed: 3.22 ft at 11:30PM Oct 03, 2023Observed: 3.22 ft at 11:45PM Oct 03, 2023Observed: 3.21 ft at 12:00AM Oct 04, 2023Observed: 3.21 ft at 12:15AM Oct 04, 2023Observed: 3.21 ft at 12:30AM Oct 04, 2023Observed: 3.21 ft at 12:45AM Oct 04, 2023Observed: 3.21 ft at 1:00AM Oct 04, 2023Observed: 3.21 ft at 1:15AM Oct 04, 2023Observed: 3.21 ft at 1:30AM Oct 04, 2023Observed: 3.2 ft at 1:45AM Oct 04, 2023Observed: 3.2 ft at 2:00AM Oct 04, 2023Observed: 3.2 ft at 2:15AM Oct 04, 2023Observed: 3.2 ft at 2:30AM Oct 04, 2023Observed: 3.2 ft at 2:45AM Oct 04, 2023Observed: 3.2 ft at 3:00AM Oct 04, 2023Observed: 3.2 ft at 3:15AM Oct 04, 2023Observed: 3.19 ft at 3:30AM Oct 04, 2023Observed: 3.19 ft at 3:45AM Oct 04, 2023Observed: 3.19 ft at 4:00AM Oct 04, 2023Observed: 3.19 ft at 4:15AM Oct 04, 2023Observed: 3.19 ft at 4:30AM Oct 04, 2023Observed: 3.19 ft at 4:45AM Oct 04, 2023Observed: 3.19 ft at 5:00AM Oct 04, 2023Observed: 3.19 ft at 5:15AM Oct 04, 2023Observed: 3.18 ft at 5:30AM Oct 04, 2023Observed: 3.18 ft at 5:45AM Oct 04, 2023Observed: 3.18 ft at 6:00AM Oct 04, 2023Observed: 3.18 ft at 6:15AM Oct 04, 2023Observed: 3.18 ft at 6:30AM Oct 04, 2023Observed: 3.18 ft at 6:45AM Oct 04, 2023Observed: 3.17 ft at 7:00AM Oct 04, 2023Observed: 3.17 ft at 7:15AM Oct 04, 2023Observed: 3.17 ft at 7:30AM Oct 04, 2023Observed: 3.17 ft at 7:45AM Oct 04, 2023Observed: 3.17 ft at 8:00AM Oct 04, 2023Observed: 3.17 ft at 8:15AM Oct 04, 2023Observed: 3.17 ft at 8:30AM Oct 04, 2023Observed: 3.17 ft at 8:45AM Oct 04, 2023Observed: 3.16 ft at 9:00AM Oct 04, 2023Observed: 3.16 ft at 9:15AM Oct 04, 2023Observed: 3.16 ft at 9:30AM Oct 04, 2023Observed: 3.16 ft at 9:45AM Oct 04, 2023Observed: 3.16 ft at 10:00AM Oct 04, 2023Observed: 3.16 ft at 10:15AM Oct 04, 2023Observed: 3.16 ft at 10:30AM Oct 04, 2023Observed: 3.15 ft at 10:45AM Oct 04, 2023Observed: 3.15 ft at 11:00AM Oct 04, 2023Observed: 3.15 ft at 11:15AM Oct 04, 2023Observed: 3.15 ft at 11:30AM Oct 04, 2023Observed: 3.15 ft at 11:45AM Oct 04, 2023Observed: 3.15 ft at 12:00PM Oct 04, 2023Observed: 3.15 ft at 12:15PM Oct 04, 2023Observed: 3.15 ft at 12:30PM Oct 04, 2023Observed: 3.15 ft at 12:45PM Oct 04, 2023Observed: 3.15 ft at 1:00PM Oct 04, 2023Observed: 3.14 ft at 1:15PM Oct 04, 2023Observed: 3.14 ft at 1:30PM Oct 04, 2023Observed: 3.14 ft at 1:45PM Oct 04, 2023Observed: 3.14 ft at 2:00PM Oct 04, 2023Observed: 3.14 ft at 2:15PM Oct 04, 2023Observed: 3.14 ft at 2:30PM Oct 04, 2023Observed: 3.14 ft at 2:45PM Oct 04, 2023Observed: 3.14 ft at 3:00PM Oct 04, 2023Observed: 3.14 ft at 3:15PM Oct 04, 2023Observed: 3.14 ft at 3:30PM Oct 04, 2023Observed: 3.14 ft at 3:45PM Oct 04, 2023Observed: 3.13 ft at 4:00PM Oct 04, 2023Observed: 3.13 ft at 4:15PM Oct 04, 2023Observed: 3.13 ft at 4:30PM Oct 04, 2023Observed: 3.13 ft at 4:45PM Oct 04, 2023Observed: 3.13 ft at 5:00PM Oct 04, 2023Observed: 3.13 ft at 5:15PM Oct 04, 2023Observed: 3.13 ft at 5:30PM Oct 04, 2023Observed: 3.13 ft at 5:45PM Oct 04, 2023Observed: 3.13 ft at 6:00PM Oct 04, 2023Observed: 3.12 ft at 6:15PM Oct 04, 2023Observed: 3.12 ft at 6:30PM Oct 04, 2023Observed: 3.12 ft at 6:45PM Oct 04, 2023Observed: 3.12 ft at 7:00PM Oct 04, 2023Observed: 3.12 ft at 7:15PM Oct 04, 2023Observed: 3.12 ft at 7:30PM Oct 04, 2023Observed: 3.12 ft at 7:45PM Oct 04, 2023Observed: 3.11 ft at 8:00PM Oct 04, 2023Observed: 3.11 ft at 8:15PM Oct 04, 2023Observed: 3.11 ft at 8:30PM Oct 04, 2023Observed: 3.11 ft at 8:45PM Oct 04, 2023Observed: 3.11 ft at 9:00PM Oct 04, 2023Observed: 3.11 ft at 9:15PM Oct 04, 2023Observed: 3.11 ft at 9:30PM Oct 04, 2023Observed: 3.11 ft at 9:45PM Oct 04, 2023USGS--Water Resources of the United StatesMACF1(plotting HGIRG) Graph Created (10:39PM Oct 4, 2023)ObservedLatest observed value: 3.11 ft at 9:45 PM EDT 4-Oct-2023. Flood Stage is 12 ft
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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: Forecasts for the St. Marys River near Macclenny are issued as needed during times of high water, but are not routinely available.

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Upstream Gauge - at Moniac Upstream Gauge
Flood Categories (in feet)
Major Flood Stage: 19
Moderate Flood Stage: 15
Flood Stage: 12
Action Stage: 10
Low Stage (in feet): 1.5

Historic Crests
(1) 24.38 ft on 06/28/2012
(2) 23.25 ft on 09/13/1964
(3) 22.86 ft on 04/05/1973
(4) 22.32 ft on 09/12/2017
(5) 22.29 ft on 09/25/1947
(6) 21.97 ft on 04/03/1948
(7) 21.96 ft on 09/07/1950
(8) 21.90 ft on 09/20/1928
(9) 21.23 ft on 10/22/1950
(10) 21.14 ft on 08/24/2008
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 12.65 ft on 08/03/2023
(2) 12.86 ft on 09/12/2022
(3) 13.33 ft on 09/06/2022
(4) 12.85 ft on 08/30/2022
(5) 13.31 ft on 03/26/2022
(6) 14.52 ft on 03/14/2022
(7) 13.08 ft on 11/08/2021
(8) 13.33 ft on 09/24/2021
(9) 17.54 ft on 08/07/2021
(10) 12.54 ft on 07/29/2021
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
(1) 0.04 ft on 06/04/1927
(2) 0.24 ft on 06/09/1943
(3) 0.34 ft on 06/11/1945
(4) 0.38 ft on 02/12/1928
(5) 0.44 ft on 06/08/1935
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
If you notice any errors in the below information, please contact our Webmaster
20 High banks on the Florida side begin to overflow. Trailers and houses along the river in Baker County are endangered. Trailers and houses on the Georgia side near Stokesville are endangered.
17 High water on the river reaches the bottom of the Stokes Road Bridge.
16 Access roads on both sides of the river in Florida and Georgia are flooded, including the entire low lying stretch of St. Mary's River Bluff Road on the Georgia side which cuts off 40 to 50 homes. On the Florida side, the lower end of St. Mary's Cove Road past the public boat ramp becomes flooded and cuts off access to 20 to 30 homes. The Stokes Road Bridge over the river is generally closed due to high water.
15 Flooding begins to impact the lower end of Steel Bridge Road on the Florida side and cuts off access to the river gage as well as access to several homes.
14 Flooding of bottomlands along the river and some lower access roads including the lower half of St. Mary's River Bluff Road which cuts off 15 to 20 homes on the Georgia side.
12 Minor flooding of low lying areas and timber lands including some properties along St. Mary's River Bluff Road and the Cypress Landing Resort on the Georgia side.
About This Location Collapse

Latitude: 30.358611° N, Longitude: 82.081667° 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 Not Available Not Available Older USGS topographic maps, NGVD29 benchmarks
MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks
Other 40 ft 52 ft  

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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