Mattawamkeag River at Mattawamkeag, ME
River level and flood forecast · Penobscot County
The river is 10.4 ft below flood stage (13.5 ft).
Forecast to rise to 3.6 ft Thu 8 AM, below the 13.5 ft flood stage.
Flow: 24 cubic feet per second (USGS).
The lowest for October 13 in 92 years of records.
Usual for October 13: 249 to 1,400 cubic feet per second (the middle half of 92 years).
The last 7 days and the forecast
NWS forecast issued Mon, Oct 12, 11:14 AM. Forecasts change as rain falls and as upstream water arrives.
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An email when the National Weather Service forecasts Mattawamkeag River at Mattawamkeag to flood, when it floods, and when it's over.
Flood stages
| Major flood stage | 17.5 ft |
| Moderate flood stage | 16 ft |
| Flood stage | 13.5 ft |
| Action stage | 13 ft |
| Record crest (April 18, 2014) | 16.31 ft |
What floods at each level
From the National Weather Service, highest first.
- 16 ftRiver Road in Mattawamkeag inundated. Lancaster Road and Kingman Road in Kingman inundated closed to traffic. Bancroft Road in Bancroft inundated and closed. New Brunswick Southern Railroad tracks flooded due to backwater near the confluence of Molunkus Stream into the Mattawamkeag.
- 15.5 ftFlooding along River Road, Mattawamkeag Wilderness Park Road in Mattawamkeag and Lancaster Road in Kingman.
- 15 ftBridge Road near Haynesville flooded.
- 14 ftFlooding along the Bancroft Road between Wytopitlock and Bancroft.
- 13.5 ftMinor lowland flooding occurs near River Road and Mattawamkeag Wilderness Park Road.
- 13 ftRiver approaches bankfull.
Highest crests on record
- 16.31 ft — April 18, 2014
- 16.16 ft — April 15, 1993
- 15.93 ft — April 14, 1993
- 15.81 ft — April 24, 2019
- 15.73 ft — April 19, 1994
Recent crests: 12.23 ft (December 21, 2023) · 10.88 ft (October 21, 2022) · 12.14 ft (April 12, 2022) · 14.29 ft (April 16, 2020) · 15.81 ft (April 24, 2019)
Highest flow on record
46,600 cubic feet per second — May 1, 1923. From the USGS's yearly peaks since 1903.
Up and down the river, and nearby
- Wytopitlock Stream near Reed Plantation, ME
- Penobscot River above Grindstone, ME
- Penobscot River at West Enfield, ME
- Piscataquis River at Medford, ME
- Grand Lake Stream at Grand Lake Stream, ME
- Sebec River at Sebec, ME
- St. Croix River above Vanceboro, ME
- Meduxnekeag River above South Branch near Houlton, ME
Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (MATM1); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.