Lamprey River near Newmarket, NH

Strafford County, New Hampshire · USGS gauge 01073500 · NWS LAMN3 · Lamprey River flood status · New Hampshire river levels

Nearby: river levels near Dover

Is Lamprey River near Newmarket, NH flooding right now?

Lamprey River near Newmarket, NH measured 0.59 ft on 2026-09-11 01:15:00 UTC. That observation was 7.4 ft below its 8 ft flood stage. This is the latest available reading, not a guarantee of current conditions.

Gauge height
0.59 ft
as of 64 min ago
Streamflow
8 cfs
data refreshed 1 min ago

Minor flooding here begins at 8 ft, with major flooding at 16 ft. The highest crest on record was 18.31 ft on Tue, May 16, 2006.

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
Action7 ft6.4 ft below
Minor flood8 ft7.4 ft below
Moderate flood12 ft11.4 ft below
Major flood16 ft15.4 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
18.31 ft2006-05-16
17.49 ft2007-04-18
15.14 ft1987-04-07
14.88 ft1936-03-20
14.81 ft2010-03-16

Last 7 days

Past 7 days · 0.60–0.71 ft

Nearby gauges

GaugeDistanceCounty
Oyster River near Durham, NH3.2 miStrafford County
Winnicut River at Greenland, near Portsmouth, NH7.0 miRockingham County
Cocheco River, at Spaulding Turnpike, at Dover, NH7.7 miStrafford County
Isinglass River at Rochester Neck Rd, near Dover, NH9.1 miStrafford County
Exeter River at Haigh Road, near Brentwood, NH9.2 miRockingham 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