National Weather Service United States Department of Commerce


Coastal Flood Monitor for Southeastern

Georgia and Northeastern Florida

This webpage depicts current water levels across selected areas of Southeastern Georgia and Northeastern Florida. Water levels appearing on this page are shown relative to the North American Vertical Datum 1988 (NAVD88). Datum conversion charts can be found on each individual gage page. For more information on datums, or how to make an adjustment to a level of your choice, please visit this website:

To see water levels within a particular county, click on the link below. Note that each gage appearing on this page has four categories used to describe general impacts during times of high water. Details on specific impacts can be found by clicking on each individual graph.



Glynn County Camden County
Nassau County Duval County


Action Stage Should water levels continue rising, preparations to protect property should begin
Minor Flood Minimal or no property damage. Flooding of low lying roads near the coast.
Moderate Flood Some inundation of structures and flooding roads. Evacuation of people or property to higher elevations possible
Major Flood Extensive inundation of structures in roads in the area. Evacuations of people or transfer or property to higher elevations likely.




Glynn County, Georgia

BRNG1 - Atlantic Coast - St. Simons Island, Georgia

SBNG1 - Brunswick River - Brunswick, Georgia



  Camden County, Georgia

SRWG1 - Satilla River - Woodbine, Georgia

CSAG1 - Cumberland Island - Sea Camp Dock, Georgia

KLNG1 - St. Marys River - Interstate 95 Bridge

FRDF1 - Atlantic Coast - Fernandina Beach, Florida

Nassau County, Florida

FRDF1 - Atlantic Coast - Fernandina Beach, Florida

NATF1 - Nassau River - Tisonia, Florida


Duval County, Florida


NATF1 - Nassau River - Tisonia, Florida

   MYPF1 - Atlantic Coast - Mayport, Florida


                                         SJLF1 - St Johns River - Jacksonville, Florida