Major Flood
15.5 ft
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: SCTM3). Live data may be limited. View on NWS AHPS →
FLOOD STAGES
Know the flood categories.
Flood stages defined by the National Weather Service. Gage height data from USGS Water Resources.
Moderate Flood
13.5 ft
Minor Flood
11.5 ft
Action Stage
11 ft
What Floods at Each Level
14 ft
Widespread flooding of coastal areas along the south shore from Cohasset to Plymouth is expected. Large swells breaking on the coastline may produce structural damage to roads and homes near the time of high tide. Evacuations and road closures may be required. Significant beach erosion is also expected.
13.5 ft
Significant flooding of coastal areas along the South Shore from Cohasset to Plymouth is expected. Large swells breaking on the coastline may damage some immediate coastal roads and homes near the time of high tide. Evacuations and road closures may be required. Significant beach erosion is also likely.
13 ft
Flooding is expected in low lying areas of Cohasset, Scituate and Marshfield. Some localized evaucations may be required as coastal roads become inundated. Large waves will produce beach erosion.
12.5 ft
Minor flooding and beach erosion is expected across low lying sections of Cohasset, Scituate and Marshfield. Immediate coastal roads may be impassable for a time nearest the time of high tide.
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 4, 2018 | 14.78 ft | — |
| Mar 2, 2018 | 14.59 ft | — |
| Mar 2, 2018 | 14.36 ft | — |
About This Gauge
NWS LID
SCTM3
River
Massachusetts Bay
County
Plymouth, MA
Coordinates
42.1994°N, 70.7200°W
Get Flood Alerts for Massachusetts 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 Massachusetts Bay at Scituate (IN MLLW)?
The Massachusetts Bay at Scituate (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 Massachusetts Bay at Scituate (IN MLLW)?
The NWS-defined flood stage for Massachusetts Bay at Scituate (IN MLLW) is 11.5 feet. Action stage begins at 11 feet. Moderate flooding starts at 13.5 feet, and major flooding at 15.5 feet.
How do I get alerts when Massachusetts Bay rises?
Download StormCast free on Google Play, go to River Gauges, and add Massachusetts Bay at Scituate (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 Massachusetts Bay at Scituate (IN MLLW) gauge located?
The gauge is located in Plymouth County, Massachusetts at coordinates 42.1994°N, 70.7200°W. Data is provided by the U.S. Geological Survey and the National Weather Service.
More Resources
Source & Notes
- Gauge readings are temporarily unavailable.
- <span style="color: #ff0000;">Please refer to our <span style="background-color: #ffff00;"><a style="color: #ff0000; background-color: #ffff00;" title="Link to CFWBOX" href="https://forecast.weather.gov/product.php?site=NWS&issuedby=BOX&product=CFW&format=CI&version=1&glossary=0">Coastal Hazard Message</a></span> for specific information regarding Coastal Flood Watches, Warnings and Advisories. Actual impacts from any coastal 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 style="background-color: #ffff00;"><a style="background-color: #ffff00;" title="Link to TCVBOX" href="https://forecast.weather.gov/product.php?site=NWS&issuedby=BOX&product=TCV&format=CI&version=1&glossary=1">here</a></span> for additional storm surge information.</span>
- <span style="color: #ff0000;">During a Tropical Storm or Hurricane Watch or Warning, inundation mapping provided by the <span style="background-color: #ffff00;"><a style="color: #ff0000; background-color: #ffff00;" href="https://www.nhc.noaa.gov">National Hurricane Center</a></span> (go to the web site and select the storm of interest) reflects a reasonable worst case scenario. The forecast above is the total water forecast that is most likely to occur.</span>