Allagash River near Allagash, Maine

Aroostook County, Maine · USGS gauge 01011000 · NWS ALLM1 · Maine river levels

Is Allagash River near Allagash, Maine flooding right now?

Allagash River near Allagash, Maine measured 2.05 ft on 2026-09-11 01:00:00 UTC. That observation was 12.9 ft below its 15 ft flood stage. This is the latest available reading, not a guarantee of current conditions.

Gauge height
2.05 ft
as of 66 min ago
Streamflow
319 cfs
data refreshed 5 min ago

Minor flooding here begins at 15 ft, with major flooding at 19 ft. The highest crest on record was 19.78 ft on Wed, Apr 10, 1991.

Streamflow outlook

NOAA National Water Model forecast, issued 14 hours ago. The NWM models discharge for every river reach in the country, including the many gauges the National Weather Service does not forecast individually. It is a model, not an official NWS river forecast, and it predicts flow rather than water level.

Flood stages at this gauge

CategoryStageCurrent distance
Action13 ft10.9 ft below
Minor flood15 ft12.9 ft below
Moderate flood17 ft14.9 ft below
Major flood19 ft16.9 ft below

New to these numbers? What does flood stage mean? · How to read a river gauge · Why is the river rising?

Highest crests on record

StageDate
19.78 ft1991-04-10
19.48 ft1983-04-18
17.55 ft1988-04-06
14.89 ft2008-04-30
14.43 ft1975-04-03

Nearby gauges

GaugeDistanceCounty
St. John River at Dickey, Maine3.0 miAroostook County
Fish River at Soldier Pond, Maine24.5 miAroostook County
Fish River near Fort Kent, Maine26.1 miAroostook County
St. John River below Fish River, near Fort Kent, Maine27.5 miAroostook County
Big Black River near Depot Mtn, Maine33.8 miAroostook County
Provisional data: Real-time readings are provisional and subject to revision by the USGS — sensors can be affected by ice, debris, or equipment malfunction. Do not rely on this site for decisions involving personal safety; follow official guidance from the National Weather Service and local authorities.

Sources: USGS monitoring location · NWS gauge & forecast