Kennebec River at North Sidney

1. 39.00 ftThe 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.
2. 34.00 ftMany 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.
3. 31.50 ftExtensive 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.
4. 29.00 ftMajor flooding occurs. Closure of Route 201 is possible near Davis Street in Fairfield and Halifax Street in Winslow. In Fairfield, impacts expand to multiple properties along Upper Main Street, Water Street, and Bunker Island. Follow the directions of local officials if you are asked to evacuate.
5. 25.00 ftModerate flooding occurs. In Fairfield, water surrounds properties and inundates basements of low lying properties off Upper Main Street and Water Street. Impacts expand to buildings on Mill Road and Lithgow Street in Winslow. Impacts along Route 201 in Winslow are possible if concurrent with high flows along the Sebasticook River.
6. 22.50 ftIn Fairfield, floodwaters expand from Water Street to Dyer Court cutting off access to properties. Floodwaters reach Lithgow Street in Winslow.
7. 20.00 ftLowest portions of Winslow and Fairfield begin to flood. The most flood prone areas include Lithgow Street in Winslow and Water Street in Fairfield. Residents along the river in low lying areas should prepare for flooding if additional rises occur.
8. 17.00 ftThe river is at bankfull in low lying areas, and high flows could cause some erosion.

Chance of flooding, September to November

The three-month chances are the River Forecast Centers’ long-range flood outlook, issued September 21, 2026.

Most recent crests

• April 13, 2024: 20.62 ft
• March 8, 2024: 17.25 ft
• December 19, 2023: 32.32 ft
• May 2, 2023: 24.90 ft
• April 16, 2014: 21.25 ft
• June 4, 2012: 18.79 ft
• December 14, 2010: 20.85 ft
• April 30, 2008: 22.08 ft
• April 4, 2005: 22.29 ft
• December 19, 2003: 22.23 ft

• UpstreamKennebec River at Skowhegan
• DownstreamKennebec River at Augusta
• Kennebec River at Hallowell
• Kennebec River
• Cobbosseecontee Stream
• Sheepscot River at North Whitefield
• Sandy River (ME) at Mercer
• Kennebec River

Forecasts by the Northeast River Forecast Center. Forecasts are issued routinely year-round. Flood stage changes coming December 11, 2024. Please visit <a href='https://www.weather.gov/media/gyx/PNS_2024FloodStageChanges.pdf' >HERE</a> for more information.

Stage, flood stages, impacts and crest history from NOAA’s National Water Prediction Service. Streamflow and the daily record from the U.S. Geological Survey.