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This probabilistic forecast is issued by the Northeast River Forecast Center.
tab left off Hydrograph tab right off tab left off River at a Glance tab right off tab left off Download tab right off tab left on tab right on
About this graph
Forecasts for the Ammonoosuc River at Bethlehem are issued as needed during times of high water, but are not routinely available.
Return to Area Map

Zoom Level:15
Flood Categories (in feet)
Major Flood Stage: 14
Moderate Flood Stage: 12
Flood Stage: 8
Action Stage: 6
Low Stage (in feet): -9999

Historic Crests
(1) 12.34 ft on 11/12/1995
(2) 12.09 ft on 10/24/1959
(3) 11.96 ft on 06/30/1973
(4) 11.22 ft on 03/27/1953
(5) 10.90 ft on 08/28/2011
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 9.24 ft on 12/24/2022 (P)
(2) 9.75 ft on 04/15/2014
(3) 10.90 ft on 08/28/2011
(4) 9.91 ft on 04/24/2005
(5) 9.22 ft on 04/14/2002
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
Currently none available.
KML Image
Gauge LocationGauge Map Marker
 Disclaimer
Latitude/Longitude Disclaimer: The gauge location shown in the above map is the approximate location based on the latitude/longitude coordinates provided to the NWS by the gauge owner.
Flood Impacts & Photos Collapse
If you notice any errors in the below information, please contact our Webmaster
12 Flooding occurs along portions Route 116/Whitefield Road. Portions of Feather Lane, Wing Road, Hazen Road, and Prospect Street are flooded.
8 Flooding begins along River Road in the vicinity of Black Brook.

Other Real-time and/or Archive Data Sources:
Additional Information Collapse
Potential River Levels - Used to
Potential River Levels
Used to Estimate the Chance of Flooding and the Range of Possible River Levels
10 day (HEFS) 7 Day (NAEFS) 7 Day (GEFS)
HEFS Ensemble NAEFS Ensemble GEFS Ensemble

Note: Use the official hydrograph at the top of this web page for river levels within the next 48 hours.

See the Product Description Document link for more details on the interpretation of the 3,7 day graphics.

Click individual graphics to enlarge.
Collaborative Agencies Collapse
The National Weather Service prepares its forecasts and other services in collaboration with agencies like the US Geological Survey, US Bureau of Reclamation, US Army Corps of Engineers, Natural Resource Conservation Service, National Park Service, ALERT Users Group, Bureau of Indian Affairs, and many state and local emergency managers across the country. For details, please click here.
NWS Information
National Weather Service
Gray Weather Forecast Office
P.O. Box 1208, 1 Weather Lane, Route 231
Gray, ME 04039
(207) 688-3216
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