Major Flood
5.5 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
4.5 ft
Minor Flood
3.5 ft
What Floods at Each Level
6.39 ft
(Mean Lower Low Water (MLLW)) The level reached on October 29, 2012 during Post Tropical Cyclone Sandy.
6.11 ft
(MLLW) The level reached during the northeaster on December 11, 1992.
5.5 ft
(MLLW) MAJOR FLOODING. At this level, flooding starts to become severe enough to begin causing structural damage along with widespread flooding of roadways in Lacey Township, Ocean Township, Barnegat Township, Barnegat Light, Harvey Cedars and nearby communties. Vulnerable homes and businesses may be severely damaged as water levels rise further above this threshold. Numerous roads become impassable and some neighborhoods may be isolated. The flood waters become a life-threatening danger.
4.5 ft
(MLLW) MODERATE FLOODING. At this level, widespread flooding of roadways begins with many roads becoming impassable in Lacey Township, Ocean Township, Barnegat Township, Barnegat Light, Harvey Cedars and nearby communities. Lives may be at risk when people put themselves in harm's way. Some damage to vulnerable structures may begin to occur. COASTAL FLOOD WARNING LEVEL.
3.9 ft
(MLLW) Flooding begins in Lacey Township and Ocean Township. Flooding begins along local roads in Barnegat Township, including Bay Shore Drive and East Bay Avenue. Bayside flooding begins in Harvey Cedars.
3.8 ft
(MLLW) COASTAL FLOOD ADVISORY LEVEL.
3.5 ft
(MLLW) MINOR FLOODING.
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 28, 2012 | 6.39 ft | — |
| Dec 10, 1992 | 6.11 ft | — |
| Oct 17, 2009 | 4.95 ft | — |
About This Gauge
Get Flood Alerts for Barnegat Bay
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 Barnegat Bay at Barnegat Light (IN MLLW)?
The Barnegat Bay at Barnegat Light (IN MLLW) gauge is maintained by USGS (site 01409125) 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 Barnegat Bay at Barnegat Light (IN MLLW)?
The NWS-defined flood stage for Barnegat Bay at Barnegat Light (IN MLLW) is 3.5 feet. Action stage begins at N/A feet. Moderate flooding starts at 4.5 feet, and major flooding at 5.5 feet.
How do I get alerts when Barnegat Bay rises?
Download StormCast free on Google Play, go to River Gauges, and add Barnegat Bay at Barnegat Light (IN MLLW) 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 Barnegat Bay at Barnegat Light (IN MLLW) gauge located?
The gauge is located in Ocean County, New Jersey at coordinates 39.7608°N, 74.1106°W. USGS site number: 01409125. Data is provided by the U.S. Geological Survey and the National Weather Service.
More Gauges on Barnegat Bay
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Source & Notes
Data provided by: US Geological Survey, Observations courtesy of U.S. Geological Survey
- <head> <meta charset="utf-8"> <style type="text/css"> .style1 {background-color: #FFFF00;} </style> </head> Please refer to our <a href="http://forecast.weather.gov/product.php?site=NWS&issuedby=PHI&product=CFW&format=CI&version=1&glossary=0"> <span class="style1">Coastal Hazard Message</span></a> for specific information regarding Coastal Flood Watches, Warnings and Advisories. Flood impacts are based on long-term averages. Actual impacts from any tidal flooding event may vary due to factors such as rainfall, wave action, and the number of tide cycles during which there is an onshore flow. During tropical cyclones, please refer <span class="style1"> <a href="https://forecast.weather.gov/product.php?site=NWS&issuedby=PHI&product=TCV&format=CI&version=1&glossary=1">here</a></span> for additional storm surge information.
- <style type="text/css">.style1 { background-color: #FFFF00;}</style> During a Tropical Storm or Hurricane Watch or Warning, inundation mapping provided by the <a href="http://www.nhc.noaa.gov/"><span class="style1">National Hurricane Center</span> </a>reflects a reasonable worst case scenario. The experimental forecast above is the total water forecast that is expected to occur.