Major Flood
15 ft
Current Water Level
Gage Height
Loading...
Streamflow
Loading...
Last Reading
Loading...
This is an NWS forecast point (LID: BTBM1). 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
14 ft
Minor Flood
13 ft
Action Stage
12.5 ft
What Floods at Each Level
15 ft
Water depth up to 1 foot in some waterfront businessess. Flooding becomes more widespread including the Boothbay Harbor Pier with water inundation greater than 2 feet.
14 ft
Water approaches businesses on the waterfront with numerous piers becoming inundated with up to 1 to 2 feet of water in Boothbay Harbor.
13 ft
Flooding begins along shoreline parking lots and the waterfront of Boothbay Harbor.
Impact statements from the National Weather Service, describing what typically happens at each water level.
7-Day Water Level Chart
Loading chart data...
Historic Crests
| Date | Stage | Flow |
|---|---|---|
| Dec 5, 2024 | 13.54 ft | — |
About This Gauge
NWS LID
BTBM1
County
Lincoln, ME
Coordinates
43.8424°N, 69.6601°W
Get Flood Alerts for Boothbay Harbor Tide Gage (MLLW)
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 Boothbay Harbor Tide Gage (MLLW)?
The Boothbay Harbor Tide Gage (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 Boothbay Harbor Tide Gage (MLLW)?
The NWS-defined flood stage for Boothbay Harbor Tide Gage (MLLW) is 13 feet. Action stage begins at 12.5 feet. Moderate flooding starts at 14 feet, and major flooding at 15 feet.
How do I get alerts when this river rises?
Download StormCast free on Google Play, go to River Gauges, and add Boothbay Harbor Tide Gage (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 Boothbay Harbor Tide Gage (MLLW) gauge located?
The gauge is located in Lincoln County, Maine at coordinates 43.8424°N, 69.6601°W. Data is provided by the U.S. Geological Survey and the National Weather Service.
More Resources
Source & Notes
Data provided by: This link will lead you NERACOOS Marine Dashboard