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Hydrograph River at a Glance Download
Atlantic Coast at Fernandina Beach (in MHHW) Stage (ft)National Ocean Service.FRDF1(plotting HMIRG) Graph Created (8:24AM Jun 15, 2021)Flood Stage is 2 ft
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Datum: Not Available
Metadata
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 Atlantic Coast at Fernandina Beach (in MHHW). Only observed stages are available for this point.

Return to Area Map
Flood Categories (in feet)
Major Flood Stage: 3.5
Moderate Flood Stage: 2.5
Flood Stage: 2
Action Stage: 1.5
Low Stage (in feet): -9.24

Historic Crests
(1) 6.94 ft on 10/01/1898
(2) 4.13 ft on 10/07/2016
(3) 4.04 ft on 10/19/1944
(4) 3.94 ft on 09/10/1964
(5) 3.58 ft on 09/11/2017
(6) 3.06 ft on 10/08/1946 (P)
(7) 2.77 ft on 09/20/2020
(8) 2.76 ft on 09/26/2004
(9) 2.75 ft on 09/21/2020
(10) 2.66 ft on 10/17/1950 (P)
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 2.05 ft on 11/15/2020
(2) 2.27 ft on 10/19/2020
(3) 2.30 ft on 10/18/2020
(4) 2.06 ft on 10/17/2020
(5) 2.75 ft on 09/21/2020
(6) 2.21 ft on 09/21/2020
(7) 2.77 ft on 09/20/2020
(8) 2.33 ft on 09/19/2020
(9) 2.55 ft on 09/19/2020
(10) 2.07 ft on 09/16/2020
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
(1) -10.66 ft on 01/23/1940
(2) -10.50 ft on 03/13/1993
(3) -10.26 ft on 11/29/1963
(4) -9.79 ft on 12/12/2008
(5) -9.70 ft on 04/07/1989
Show More Low Water Records

For more information on your flood risk go to www.floodsmart.gov.
Zoom Level:14
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Gauge LocationGauge Map Marker
 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
3.5 Major Flooding - 3.5 feet above MHHW - Major Coastal Flooding. Coastal Flood Warning needed. 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. Extensive beach erosion is possible and possible breaches of the dune line, especially in lower areas and beach access areas. Significant past events: 2 October 1898 Hurricane.
2.5 Moderate Flooding - 2.5 feet above MHHW - Significant Coastal Flooding begins and Coastal Flood Warning needed. Some flooding of structures and roads along the coast, St. Mary's 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. Significant past events: Hurricane Dora 1964.
2 Minor Flooding - 2.0 feet above MHHW - Coastal Flood Advisory is likely and Coastal Flood Warning Possible if significant wind and wave action drives water levels higher along the immediate coast. Flooding of low lying roads and campgrounds possible. Water levels may surge up the dune lines and into beach access areas. Some boat ramps and docks near the St. Mary's River entrance and other inland waterways may begin to flood. Significant past events: Tropical Storm Fay...Hurricane Jeanne and 11/23/1984.
1.5 Action Stage - 1.5 feet above MHHW - Coastal Flood Statement Likely and Coastal Flood Advisory is possible if significant wind and wave action drives water levels higher along the immediate coast. Should water levels continue rising...preparations to protect property should begin.
About This Location Collapse

Latitude: 30.671667° N, Longitude: 81.465000° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame		 Gauge Height Flood Stage Uses
NWS stage 0 ft 2 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 2.74 4.8 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 Mean Higher High Water - Used to approximate inundation
Additional Information Collapse
Navigational Users: Visit the National Ocean Service's site for Fernandina Beach here
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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
Jacksonville Weather Forecast Office
13701 Fang Drive
Jacksonville, FL 32218
(904) 741-4370
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