Atlantic Coast at Hampton (IN MLLW)
New Hampshire — Water Level & Flood Stage
Located in Rockingham County, New Hampshire on the Atlantic Coast. Live water level data from USGS, updated every 15 minutes.
Current Water Level
Gage Height
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Streamflow
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Last Reading
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This is an NWS forecast point (LID: HPMN3). Live data may be limited. View on NWS AHPS →
Flood Stages
Major Flood
13 ft
Moderate Flood
12 ft
Minor Flood
11 ft
Action Stage
10 ft
Flood stages defined by the National Weather Service. Gage height data from USGS Water Resources.
What Floods at Each Level
13.3 ft
Cars flooded with low lying Backbay roads in Hampton covered by up to three feet of water
12 ft
Roads flooded up to a foot deep in the Backbay area of Hampton
11 ft
Onset of flooding along low lying streets in the Hampton Backbay area
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 |
|---|---|---|
| Jan 13, 2024 | 13.76 ft | — |
| Jan 13, 2024 | 13.76 ft | — |
| Jan 10, 2024 | 13.67 ft | — |
| Jan 10, 2024 | 13.67 ft | — |
| Dec 23, 2022 | 13.25 ft | — |
About This Gauge
NWS LID
HPMN3
River
Atlantic Coast
County
Rockingham, NH
Coordinates
42.9003°N, 70.8186°W
Get Flood Alerts for Atlantic Coast
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 Atlantic Coast at Hampton (IN MLLW)?
The Atlantic Coast at Hampton (IN MLLW) gauge is maintained by USGS 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 Atlantic Coast at Hampton (IN MLLW)?
The NWS-defined flood stage for Atlantic Coast at Hampton (IN MLLW) is 11 feet. Action stage begins at 10 feet. Moderate flooding starts at 12 feet, and major flooding at 13 feet.
How do I get alerts when Atlantic Coast rises?
Download StormCast free on Google Play, go to River Gauges, and add Atlantic Coast at Hampton (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 — even when your screen is off.
Where is the Atlantic Coast at Hampton (IN MLLW) gauge located?
The gauge is located in Rockingham County, New Hampshire at coordinates 42.9003°N, 70.8186°W. Data is provided by the U.S. Geological Survey and the National Weather Service.
More Gauges on Atlantic Coast
More Resources
Source & Notes
Data provided by: the link to NERACOOS Hampton page
- Please refer to our <style type="text/css"> .style1 {background-color: #FFFF00;}</style> <a href="http://forecast.weather.gov/product.php?site=NWS&issuedby=GYX&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=GYX&product=TCV&format=CI&version=1&glossary=1"><span class="style1"> here</span></a> for additional storm surge information.
- Coastal flood impacts are dependent upon waves as well as tide level. High waves can result in flooding even if the tide level is below flood stage.