Saco River near Conway
No watches, warnings or advisories are in effect for this area.
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
- Upstream gauge unavailableWarning: no valid ratings curve available. Transformations to and from FEET/CFS/KCFS will not happen.
Traces and Thresholds Click to turn on/off display
Observed (OBS) 04/01/2025 5:45 AM EDTOfficial Forecast (FCST) 03/31/2025 11:12 AM EDTCATEGORY STAGE 
Major Flooding 16 ft Moderate Flooding 12.5 ft Minor Flooding 9 ft Action 7 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
- 21 - Very serious flooding with inundation near the FEMA 0.2 percent flood level. The Saco River valley could suffer worse damages than from the floods of Hurricane Irene in 2011 by several feet. Access in and out of the region is very difficult with homes surrounded by floodwaters for days.
- 17 - Severe flooding with inundation near the FEMA 1 percent flood level. The floodwaters will be as high as the flood which occurred in Hurricane Irene in 2011, and almost 2 feet higher than the flood crest which occurred on October 30, 2017. Widespread flood levels varying up to 12 feet in depth will cover campgrounds and agricultural lands along the river. In Conway, Hillside Avenue, Washington Street, and East Side Drive flood. This is an extremely dangerous and life threatening situation.
- 16 - Significant flooding along the Saco River. Hundreds of homes surrounded or isolated by floodwaters and travel in and out of the area is difficult.
Gauge Info
| Coordinates | 43.9908, -71.0906 |
| RFC | NERFC |
| State | NH |
| WFO | GYX |
| County | Carroll |
| Data Provider(s) | |
| US Geological Survey | USGS--Water Resources of the United States |
| USGS | 01064500 |
Gauge Location
Recent Crests
| 1. | 11.58 ft | on 04-13-2024 |
| 2. | 17.71 ft | on 12-19-2023 |
| 3. | 13.60 ft | on 05-01-2023 |
| 4. | 10.54 ft | on 12-24-2022 |
| 5. | 10.23 ft | on 10-15-2022 |
Recent Crests
| 1. | 11.58 ft | on 04-13-2024 |
| 2. | 17.71 ft | on 12-19-2023 |
| 3. | 13.60 ft | on 05-01-2023 |
| 4. | 10.54 ft | on 12-24-2022 |
| 5. | 10.23 ft | on 10-15-2022 |
| 6. | 9.77 ft | on 10-31-2021 |
| 7. | 15.04 ft | on 10-30-2017 |
| 8. | 9.60 ft | on 07-02-2017 |
| 9. | 13.13 ft | on 04-16-2014 |
| 10. | 10.59 ft | on 10-30-2012 |
| 11. | 10.78 ft | on 06-03-2012 |
| 12. | 17.23 ft | on 08-29-2011 |
| 13. | 9.91 ft | on 04-29-2008 |
| 14. | 11.79 ft | on 10-29-2006 |
| 15. | 9.98 ft | on 01-19-2006 |
| 16. | 12.11 ft | on 04-25-2005 |
| 17. | 12.86 ft | on 12-18-2003 |
| 18. | 11.47 ft | on 04-14-2002 |
| 19. | 10.93 ft | on 12-18-2000 |
| 20. | 10.59 ft | on 04-09-2000 |
| 21. | 11.92 ft | on 09-17-1999 |
| 22. | 14.67 ft | on 06-14-1998 |
| 23. | 11.54 ft | on 10-22-1996 |
| 24. | 13.35 ft | on 11-12-1995 |
| 25. | 12.08 ft | on 10-28-1995 |
| 26. | 10.49 ft | on 11-29-1993 |
| 27. | 11.15 ft | on 04-17-1993 |
| 28. | 9.76 ft | on 10-07-1991 |
| 29. | 12.38 ft | on 12-24-1990 |
| 30. | 10.42 ft | on 08-11-1990 |
| 31. | 11.72 ft | on 05-12-1989 |
| 32. | 11.66 ft | on 04-29-1988 |
| 33. | 17.04 ft | on 04-01-1987 |
| 34. | 13.73 ft | on 01-28-1986 |
| 35. | 12.41 ft | on 04-06-1984 |
| 36. | 9.53 ft | on 03-20-1983 |
| 37. | 9.06 ft | on 04-27-1982 |
| 38. | 10.21 ft | on 02-21-1981 |
| 39. | 10.34 ft | on 04-10-1980 |
| 40. | 13.25 ft | on 04-27-1979 |
| 41. | 11.41 ft | on 01-09-1978 |
| 42. | 15.61 ft | on 03-14-1977 |
| 43. | 10.77 ft | on 04-02-1976 |
| 44. | 13.06 ft | on 12-21-1973 |
| 45. | 15.06 ft | on 06-30-1973 |
| 46. | 9.89 ft | on 05-04-1971 |
| 47. | 10.49 ft | on 12-27-1969 |
| 48. | 10.02 ft | on 04-19-1969 |
| 49. | 13.65 ft | on 04-25-1968 |
| 50. | 13.46 ft | on 11-03-1966 |
| 51. | 12.70 ft | on 11-08-1963 |
| 52. | 11.71 ft | on 10-07-1962 |
| 53. | 16.39 ft | on 10-24-1959 |
| 54. | 11.17 ft | on 12-21-1957 |
| 55. | 9.96 ft | on 10-16-1954 |
| 56. | 12.55 ft | on 05-09-1954 |
| 57. | 17.20 ft | on 03-27-1953 |
| 58. | 12.01 ft | on 06-02-1952 |
| 59. | 13.84 ft | on 11-26-1950 |
| 60. | 11.21 ft | on 04-21-1950 |
| 61. | 9.31 ft | on 04-02-1948 |
| 62. | 9.06 ft | on 08-03-1946 |
| 63. | 9.17 ft | on 03-30-1945 |
| 64. | 11.60 ft | on 11-09-1943 |
| 65. | 11.30 ft | on 05-03-1940 |
| 66. | 11.54 ft | on 09-21-1938 |
| 67. | 11.00 ft | on 05-07-1937 |
| 68. | 16.45 ft | on 03-19-1936 |
| 69. | 14.33 ft | on 03-12-1936 |
| 70. | 10.25 ft | on 04-13-1934 |
| 71. | 9.11 ft | on 04-18-1933 |
| 72. | 10.35 ft | on 09-17-1932 |
| 73. | 10.12 ft | on 06-09-1931 |
| 74. | 10.05 ft | on 04-07-1930 |
Historic Crests
| 1. | 17.71 ft | on 12-19-2023 |
| 2. | 17.23 ft | on 08-29-2011 |
| 3. | 17.20 ft | on 03-27-1953 |
| 4. | 17.04 ft | on 04-01-1987 |
| 5. | 16.45 ft | on 03-19-1936 |
Historic Crests
| 1. | 17.71 ft | on 12-19-2023 |
| 2. | 17.23 ft | on 08-29-2011 |
| 3. | 17.20 ft | on 03-27-1953 |
| 4. | 17.04 ft | on 04-01-1987 |
| 5. | 16.45 ft | on 03-19-1936 |
| 6. | 16.39 ft | on 10-24-1959 |
| 7. | 15.61 ft | on 03-14-1977 |
| 8. | 15.06 ft | on 06-30-1973 |
| 9. | 15.04 ft | on 10-30-2017 |
| 10. | 14.67 ft | on 06-14-1998 |
| 11. | 14.33 ft | on 03-12-1936 |
| 12. | 13.84 ft | on 11-26-1950 |
| 13. | 13.73 ft | on 01-28-1986 |
| 14. | 13.65 ft | on 04-25-1968 |
| 15. | 13.60 ft | on 05-01-2023 |
| 16. | 13.46 ft | on 11-03-1966 |
| 17. | 13.35 ft | on 11-12-1995 |
| 18. | 13.25 ft | on 04-27-1979 |
| 19. | 13.13 ft | on 04-16-2014 |
| 20. | 13.06 ft | on 12-21-1973 |
| 21. | 12.86 ft | on 12-18-2003 |
| 22. | 12.70 ft | on 11-08-1963 |
| 23. | 12.55 ft | on 05-09-1954 |
| 24. | 12.41 ft | on 04-06-1984 |
| 25. | 12.38 ft | on 12-24-1990 |
| 26. | 12.11 ft | on 04-25-2005 |
| 27. | 12.08 ft | on 10-28-1995 |
| 28. | 12.01 ft | on 06-02-1952 |
| 29. | 11.92 ft | on 09-17-1999 |
| 30. | 11.79 ft | on 10-29-2006 |
| 31. | 11.72 ft | on 05-12-1989 |
| 32. | 11.71 ft | on 10-07-1962 |
| 33. | 11.66 ft | on 04-29-1988 |
| 34. | 11.60 ft | on 11-09-1943 |
| 35. | 11.58 ft | on 04-13-2024 |
| 36. | 11.54 ft | on 09-21-1938 |
| 37. | 11.54 ft | on 10-22-1996 |
| 38. | 11.47 ft | on 04-14-2002 |
| 39. | 11.41 ft | on 01-09-1978 |
| 40. | 11.30 ft | on 05-03-1940 |
| 41. | 11.21 ft | on 04-21-1950 |
| 42. | 11.17 ft | on 12-21-1957 |
| 43. | 11.15 ft | on 04-17-1993 |
| 44. | 11.00 ft | on 05-07-1937 |
| 45. | 10.93 ft | on 12-18-2000 |
| 46. | 10.78 ft | on 06-03-2012 |
| 47. | 10.77 ft | on 04-02-1976 |
| 48. | 10.59 ft | on 04-09-2000 |
| 49. | 10.59 ft | on 10-30-2012 |
| 50. | 10.54 ft | on 12-24-2022 |
| 51. | 10.49 ft | on 12-27-1969 |
| 52. | 10.49 ft | on 11-29-1993 |
| 53. | 10.42 ft | on 08-11-1990 |
| 54. | 10.35 ft | on 09-17-1932 |
| 55. | 10.34 ft | on 04-10-1980 |
| 56. | 10.25 ft | on 04-13-1934 |
| 57. | 10.23 ft | on 10-15-2022 |
| 58. | 10.21 ft | on 02-21-1981 |
| 59. | 10.12 ft | on 06-09-1931 |
| 60. | 10.05 ft | on 04-07-1930 |
| 61. | 10.02 ft | on 04-19-1969 |
| 62. | 9.98 ft | on 01-19-2006 |
| 63. | 9.96 ft | on 10-16-1954 |
| 64. | 9.91 ft | on 04-29-2008 |
| 65. | 9.89 ft | on 05-04-1971 |
| 66. | 9.77 ft | on 10-31-2021 |
| 67. | 9.76 ft | on 10-07-1991 |
| 68. | 9.60 ft | on 07-02-2017 |
| 69. | 9.53 ft | on 03-20-1983 |
| 70. | 9.31 ft | on 04-02-1948 |
| 71. | 9.17 ft | on 03-30-1945 |
| 72. | 9.11 ft | on 04-18-1933 |
| 73. | 9.06 ft | on 08-03-1946 |
| 74. | 9.06 ft | on 04-27-1982 |
Vertical Datum Table
| type | NGVD29 |
|---|---|
| major Flooding | 434.19 ft |
| moderate Flooding | 430.69 ft |
| minor Flooding | 427.19 ft |
| action | 425.19 ft |
| Latest Value | 423.47 ft |
| Gauge Zero | 418.19 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 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
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.
Resources
Hydrologic Resource Links
WFO Information
Weather Forecast Office
Gray
P.O. Box 1208, 1 Weather Lane, Route 231
Gray, ME 04039
Official Homepage