Pemigewasset River at Plymouth, NH
Is Pemigewasset River at Plymouth, NH flooding right now?
Pemigewasset River at Plymouth, NH measured 0.82 ft on 2026-09-11 01:30:00 UTC. That observation was 12.2 ft below its 13 ft flood stage. This is the latest available reading, not a guarantee of current conditions.
Gauge height
0.82 ft
Streamflow
292 cfs
Minor flooding here begins at 13 ft, with major flooding at 21 ft. The highest crest on record was 29 ft on Thu, Mar 19, 1936.
Flood forecast
Flood stages at this gauge
| Category | Stage | Current distance |
|---|---|---|
| Action | 10 ft | 9.2 ft below |
| Minor flood | 13 ft | 12.2 ft below |
| Moderate flood | 18 ft | 17.2 ft below |
| Major flood | 21 ft | 20.2 ft below |
Highest crests on record
| Stage | Date |
|---|---|
| 29 ft | 1936-03-19 |
| 27.4 ft | 1927-11-04 |
| 23.62 ft | 1938-09-21 |
| 23.43 ft | 1987-04-01 |
| 22.68 ft | 1959-10-25 |
Nearby gauges
| Gauge | Distance | County |
|---|---|---|
| Cockermouth River below Hardy Brook, at Groton, NH | 8.3 mi | Grafton County |
| Baker River near Rumney, NH | 8.3 mi | Grafton County |
| Smith River near Bristol, NH | 13.7 mi | Merrimack County |
| Pemigewasset River at Woodstock, NH | 15.0 mi | Grafton County |
| East Branch Pemigewasset River at Lincoln, NH | 19.9 mi | Grafton County |
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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.