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Weather Forecast Office Jacksonville, FL

Southeast River Forecast Center

Hydrograph

River at a Glance

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NOTE: Water levels are referenced to the Mean Higher High Water (MHHW) Datum. This datum can be used to approximate sea water inundation of normally dry ground near the coast. For specific impacts, please refer to the statements on this page. NOTE: Forecasts are not available for the St. Johns River at Racy Point (in MHHW). Only observed stages are available for this point.

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Upstream Gauge

Downstream Gauge

Flood Categories (in feet) Major Flood Stage: 3 Moderate Flood Stage: 2 Flood Stage: 1.5 Action Stage: 1 Low Stage (in feet): -9999 Historic Crests (1) 4.41 ft on 10/07/2016 (2) 3.66 ft on 09/29/2022 (3) 3.29 ft on 09/30/2022 (4) 3.11 ft on 11/10/2022 (5) 3.02 ft on 09/30/2022 Show More Historic Crests (P): Preliminary values subject to further review. Recent Crests (1) 2.14 ft on 11/11/2022 (2) 2.48 ft on 11/11/2022 (3) 2.76 ft on 11/10/2022 (4) 3.11 ft on 11/10/2022 (5) 1.88 ft on 11/09/2022 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. Show FEMA's National Flood Hazard Layers FEMA's National Flood Hazard Layers not showing? Why aren't the FEMA National Flood Hazard Layers showing on the ESRI Map? Possible reasons: There are no FEMA National Flood Hazard Layers for the location which you are viewing on ESRI Maps. The FEMA Web Mapping Service (WMS) is down. Note: Your zoom level may have changed. ESRI's zoom levels must be between 14 and 16 to show National Flood Hazard layers.

Zoom Level:14 Legend FEMA Layer Gauge Location Disclaimer Latitude/Longitude Disclaimer: The gauge location shown in the above map is the approximate location based on the latitude/longitude coordinates provided to the NWS by the gauge owner.

Flood Impacts & Photos

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3	Major Flooding - 3.0 feet above MHHW - Extensive inundation of structures and roads in the area is expected. Evacuations of people or transfer of property to higher ground is likely and the advice of Emergency Management should be heeded.
2	Moderate Flooding - 2.0 feet above MHHW - Some flooding of structures and roads along the St. Johns River and other inland waterways is expected. Evacuation of people or property to higher ground is possible and the advice of Emergency Management or local officials should be heeded.
1.5	Minor Flooding - 1.5 feet above MHHW - Flooding of low lying areas, parks, campgrounds and normally flood prone roadways is likely. Some boat ramps and docks along the St. Johns River and other inland waterways will begin to flood.
1	Action Stage - 1.0 feet above MHHW - Minor Flooding possible. Should water levels continue rising...preparations to protect property should begin.

About This Location

Latitude: 29.800000° N, Longitude: 81.550000° W, Horizontal Datum: NAD83/WGS84 River Stage Reference Frame Gauge Height Flood Stage Uses NWS stage 0 ft 1.5 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 Not Available Not Available   Current/Historical Observations: U.S. Geological Survey (USGS) Data and Site Info for Racy Point (in MHHW)

Resources

Hydrologic Resources Text Products Past Precipitation Forecast Precipitation River Forecast Centers River Stage Summary Inundation Mapping Locations

Additional Resources Area Hydrographs NWS Precipitation and River Forecasting AHPS Iframes for Developers Mobile iNWS for emergency management River Gage Status Report Rain Gage Status Report AHPS Monitor - JAX AHPS Monitor - TAE

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