Major Flood
7 ft
Current Water Level
Gage Height
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Streamflow
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Last Reading
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FLOOD STAGES
Know the flood categories.
Flood stages defined by the National Weather Service. Gage height data from USGS Water Resources.
Moderate Flood
6 ft
Minor Flood
5.5 ft
Action Stage
5 ft
What Floods at Each Level
7 ft
Major Flooding - 7.0 feet above NAVD88 - 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. Water begins to flood structures in the lower end of the City of Brunswick. Howard Coffin Park flooded. Extensive beach erosion and possible breaches of the dune line, especially in lower areas and beach access areas.
6 ft
Moderate Flooding - 6.0 feet above NAVD88 - Significant Coastal Flooding begins and Coastal Flood Warning needed. Some flooding of structures and roads along the coast 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. Water in the parking lot near GA-Pacific Plant, in Lanier Blvd and Newcastle St near the Old City Hall. Marshside Grill parking lot flooded and structures threatened.
5.6 ft
Highest Astronomical Tide (HAT) - 5.6 feet above NAVD88 - ESTIMATED!!!
5.5 ft
Minor Flooding - 5.5 feet above NAVD88 - Coastal Flood Advisory is likely and Coastal Flood Warning possible if significant wind and wave action drives water levels higher along the immediate coast. Water comes up through the storm drains into Lanier Blvd and is high in marshes and along the causeways. Flooding of low lying roads and campgrounds possible. Water levels may surge up the dune lines and into beach access areas. Some boat ramps, docks and inland waterways may begin to flood.
5 ft
Action Stage - 5.0 feet above NAVD88 - 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.
-6.2 ft
Lowest Astronomical Tide (LAT) -6.2 feet below NAVD88 - ESTIMATED!!!
Impact statements from the National Weather Service, describing what typically happens at each water level.
7-Day Water Level Chart
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Historic Crests
| Date | Stage | Flow |
|---|---|---|
| Oct 27, 2015 | 6.31 ft | -9,999 cfs |
| Sep 29, 2015 | 5.89 ft | -9,999 cfs |
| Sep 27, 2015 | 5.85 ft | -9,999 cfs |
About This Gauge
USGS Site
NWS LID
SBNG1
River
Brunswick River
County
Glynn, GA
Coordinates
31.1217°N, 81.4831°W
Get Flood Alerts for Brunswick River
StormCast monitors this gauge and sends a push notification to your phone when the water level crosses into a new flood category — even at 3 AM.
Frequently Asked Questions
What is the current water level of Brunswick River at Brunswick?
The Brunswick River at Brunswick gauge is maintained by USGS (site 022261794) and reports water levels every 15 minutes. Visit this page to see the latest reading updated live, or download StormCast to get push alerts when levels rise.
What is flood stage for Brunswick River at Brunswick?
The NWS-defined flood stage for Brunswick River at Brunswick is 5.5 feet. Action stage begins at 5 feet. Moderate flooding starts at 6 feet, and major flooding at 7 feet.
How do I get alerts when Brunswick River rises?
Download StormCast free on Google Play, go to River Gauges, and add Brunswick River at Brunswick to your watchlist. StormCast will send a push notification to your phone whenever the water level crosses into a new NWS flood category.
Where is the Brunswick River at Brunswick gauge located?
The gauge is located in Glynn County, Georgia at coordinates 31.1217°N, 81.4831°W. USGS site number: 022261794. Data is provided by the U.S. Geological Survey and the National Weather Service.
More Resources
Source & Notes
Data provided by: US Geological Survey, Observations courtesy of U.S. Geological Survey
- This water level forecast may not account for the effects of storm surge from a tropical cyclone. Large waves during times of high water can also result in flooding. For navigational purposes, please refer to data provided by the National Ocean Service.