Kennebec River at North Sidney
Future / Actual / Minor
OWP 2.0 WWA Modal Title
01/11/2021, 10:04 PM UTC through 01/11/2021, 10:04 PM UTC
Sender
Sent
- Warning: no valid ratings curve available. Transformations to and from FEET/CFS/KCFS will not happen.
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Observed (OBS) 04/01/2025 7:15 AM EDTOfficial Forecast (FCST) 03/31/2025 11:12 AM EDTRecord: 39.3 ftCATEGORY STAGE 
Major Flooding 29 ft Moderate Flooding 25 ft Minor Flooding 20 ft Action 17 ft Reliability of the Forecast:
NOTE: Forecasts are issued routinely year-round.
National Water Model Hydrograph
Official NWS streamflow forecasts are produced by NWS hydrologic forecasters for river gauge locations using hydrologic models which are calibrated to that location. This process considers additional guidance and information, including local expertise and experience, to produce the best forecast possible. The NWM output provides supplemental guidance to NWS forecasters and should not be considered an official NWS river forecast.
Flood Impacts
- 39 - The river is nearing or exceeding flood levels seen during the historic 1987 flood. Follow the directions of local officials if you are asked to evacuate.
- 34 - Many homes and businesses are severely flooded or are totally isolated for an extended duration between Waterville and North Sidney. This is a very dangerous and life threatening situation. Roadways will remain unsafe during and after the storm and driving will be extremely hazardous.
- 31.5 - Extensive flooding with major damage to roads, bridges and structures from Fairfield to Sidney. Flood levels are comparable with the severe December 2023 flooding. Several main thruways flooded making travel very difficult. Don’t put first responders at risk, follow local officials’ instructions on evacuation and safety precautions.
Gauge Location
Recent Crests
| 1. | 20.62 ft | on 04-13-2024 | (P) |
| 2. | 17.25 ft | on 03-08-2024 | (P) |
| 3. | 32.32 ft | on 12-19-2023 | |
| 4. | 24.90 ft | on 05-02-2023 | |
| 5. | 21.25 ft | on 04-16-2014 |
Recent Crests
| 1. | 20.62 ft | on 04-13-2024 | (P) |
| 2. | 17.25 ft | on 03-08-2024 | (P) |
| 3. | 32.32 ft | on 12-19-2023 | |
| 4. | 24.90 ft | on 05-02-2023 | |
| 5. | 21.25 ft | on 04-16-2014 | |
| 6. | 18.79 ft | on 06-04-2012 | |
| 7. | 20.85 ft | on 12-14-2010 | |
| 8. | 22.08 ft | on 04-30-2008 | |
| 9. | 22.29 ft | on 04-04-2005 | |
| 10. | 22.23 ft | on 12-19-2003 | |
| 11. | 23.61 ft | on 04-12-1993 | |
| 12. | 18.77 ft | on 03-29-1992 | |
| 13. | 18.90 ft | on 10-25-1990 | |
| 14. | 21.24 ft | on 05-13-1989 | |
| 15. | 39.31 ft | on 04-02-1987 | |
| 16. | 25.56 ft | on 01-28-1986 | |
| 17. | 26.60 ft | on 06-01-1984 | |
| 18. | 25.69 ft | on 04-26-1983 | |
| 19. | 17.33 ft | on 10-24-1981 | |
| 20. | 14.72 ft | on 09-25-1981 | |
| 21. | 16.66 ft | on 04-11-1980 | |
| 22. | 26.40 ft | on 04-28-1979 |
Historic Crests
| 1. | 39.31 ft | on 04-02-1987 |
| 2. | 32.32 ft | on 12-19-2023 |
| 3. | 26.60 ft | on 06-01-1984 |
| 4. | 26.40 ft | on 04-28-1979 |
| 5. | 25.69 ft | on 04-26-1983 |
Historic Crests
| 1. | 39.31 ft | on 04-02-1987 | |
| 2. | 32.32 ft | on 12-19-2023 | |
| 3. | 26.60 ft | on 06-01-1984 | |
| 4. | 26.40 ft | on 04-28-1979 | |
| 5. | 25.69 ft | on 04-26-1983 | |
| 6. | 25.56 ft | on 01-28-1986 | |
| 7. | 24.90 ft | on 05-02-2023 | |
| 8. | 23.61 ft | on 04-12-1993 | |
| 9. | 22.29 ft | on 04-04-2005 | |
| 10. | 22.23 ft | on 12-19-2003 | |
| 11. | 22.08 ft | on 04-30-2008 | |
| 12. | 21.25 ft | on 04-16-2014 | |
| 13. | 21.24 ft | on 05-13-1989 | |
| 14. | 20.85 ft | on 12-14-2010 | |
| 15. | 20.62 ft | on 04-13-2024 | (P) |
| 16. | 18.90 ft | on 10-25-1990 | |
| 17. | 18.79 ft | on 06-04-2012 | |
| 18. | 18.77 ft | on 03-29-1992 | |
| 19. | 17.33 ft | on 10-24-1981 | |
| 20. | 17.25 ft | on 03-08-2024 | (P) |
| 21. | 16.66 ft | on 04-11-1980 | |
| 22. | 14.72 ft | on 09-25-1981 |
Vertical Datum Table
| type | NGVD29 |
|---|---|
| major Flooding | 43.17 ft |
| moderate Flooding | 39.17 ft |
| minor Flooding | 34.17 ft |
| action | 31.17 ft |
| Latest Value | 22.92 ft |
| Gauge Zero | 14.17 ft |
Gauge Photos
No Images Found
Unique Local Info
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Potential River Levels Used to Estimate the Chance of Flooding and the Range of Possible River Levels |
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| 10 Day (HEFS) | 7 Day (NAEFS) | 7 Day (GEFS) |
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Note: Use the official hydrograph at the top of this web page for river levels within the next 72 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
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.