Major Flood
7.7 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
6.7 ft
Minor Flood
5.7 ft
What Floods at Each Level
9.91 ft
(Mean Lower Low Water (MLLW)) The level reached on October 29, 2012 during Post Tropical Cyclone Sandy.
8.79 ft
(MLLW) The level reached on January 23, 2016.
8.49 ft
(MLLW) The level reached during the northeaster on December 11, 1992.
7.85 ft
(MLLW) The level reached on November 13, 2009.
7.7 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 Sea Isle City and Strathmere. 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 danger to anyone who attempts to cross on foot or in a vehicle.
6.7 ft
(MLLW) MODERATE FLOODING. At this level, widespread flooding of roadways begins due to high water and/or wave action with many roads becoming impassable in Sea Isle City and Strathmere. 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.
6.5 ft
(MLLW) Flooding begins on Central Avenue in Sea Isle City.
6.3 ft
(MLLW) Flooding begins along Landis Avenue in Sea Isle City (around 29th Street). Flooding begins around the Townsends Inlet Bridge (Cape May County Route 619) between Sea Isle City and Avalon.
6.1 ft
(MLLW) Flooding begins in Strathmere.
6 ft
(MLLW) COASTAL FLOOD ADVISORY LEVEL.
5.7 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 | 9.91 ft | — |
| Jan 22, 2016 | 8.79 ft | — |
| Dec 10, 1992 | 8.49 ft | — |
About This Gauge
USGS Site
NWS LID
SICN4
River
Ludlum Thorofare
County
Cape May, NJ
Coordinates
39.1578°N, 74.6978°W
Get Flood Alerts for Ludlum Thorofare
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 Ludlum Thorofare at Sea Isle City (IN MLLW)?
The Ludlum Thorofare at Sea Isle City (IN MLLW) gauge is maintained by USGS (site 01411350) 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 Ludlum Thorofare at Sea Isle City (IN MLLW)?
The NWS-defined flood stage for Ludlum Thorofare at Sea Isle City (IN MLLW) is 5.7 feet. Action stage begins at N/A feet. Moderate flooding starts at 6.7 feet, and major flooding at 7.7 feet.
How do I get alerts when Ludlum Thorofare rises?
Download StormCast free on Google Play, go to River Gauges, and add Ludlum Thorofare at Sea Isle City (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 Ludlum Thorofare at Sea Isle City (IN MLLW) gauge located?
The gauge is located in Cape May County, New Jersey at coordinates 39.1578°N, 74.6978°W. USGS site number: 01411350. 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
- <style type="text/css"> .style1 {background-color: #FFFF00;}</style>Please refer to our <style type="text/css"> .style1 { background-color: #FFFF00;} .style2 {background-color: #FFFF00;} </style> <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. During tropical cyclones, please refer<a href="https://forecast.weather.gov/product.php?site=NWS&issuedby=PHI&product=TCV&format=CI&version=1&glossary=1"> <span class="style2">here</span></a> for additional storm surge information.
- 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.