Rivers in flood in New Hampshire right now

National Weather Service river gauges in New Hampshire that are at or above flood stage, forecast to reach it, or at action stage just below it. Observed and forecast river levels, not warnings: for flood warnings, see New Hampshire weather alerts.

Updated 19 Oct 2026, 19:23 UTC · NWS river gauges

Are any rivers flooding in New Hampshire right now?

No NWS river gauge in New Hampshire is at or above flood stage right now.

No NWS river gauge in New Hampshire is at action stage or above, and none is forecast to reach flood stage. Small streams and flash floods can still flood without a gauge showing it, so follow local warnings.

Other states with rivers in flood

Florida (10 in flood, 29 at action stage) · North Dakota (2 in flood) · Virginia (1 in flood, 28 forecast to flood, 4 at action stage) · Texas (1 in flood, 2 at action stage) · Alabama (1 in flood) · Georgia (1 in flood, 6 at action stage) · Puerto Rico (1 in flood) · Maryland (8 forecast to flood, 2 at action stage) · North Carolina (3 forecast to flood, 9 at action stage) · Alaska (2 forecast to flood, 3 at action stage) · New Jersey (6 forecast to flood, 1 at action stage) · Delaware (3 forecast to flood) · Colorado (1 forecast to flood) · District of Columbia (1 forecast to flood, 1 at action stage) · Pennsylvania (1 forecast to flood, 1 at action stage)

What the flood categories mean

  • Action stage The river is near flood stage. NWS and local officials start preparing; there is no flooding yet.
  • Minor flooding Minimal or no property damage, but possibly some public threat, such as water over low roads.
  • Moderate flooding Some buildings near the river may flood, roads may close and some evacuations may be needed.
  • Major flooding Extensive flooding of buildings and roads, with significant evacuations of people and property.

Questions

Which rivers are flooding in New Hampshire right now?

No NWS river gauge in New Hampshire is at or above flood stage right now. This list is rebuilt from National Weather Service river gauges every 15 minutes.

What is flood stage?

Flood stage is the river level, measured at a gauge, at which the river starts to cause flooding at that place. The National Weather Service sets it for each gauge, along with an action stage just below it and levels for minor, moderate and major flooding. The numbers are gauge heights, not water depths, so 20 feet at one gauge cannot be compared with 20 feet at another.

What do action, minor, moderate and major flooding mean?

Action stage means the river is close to flooding and officials start preparing. Minor flooding means little or no property damage but some public threat, such as water over low roads. Moderate flooding means some buildings near the river may flood and some evacuations may be needed. Major flooding means extensive flooding of buildings and roads and significant evacuations.

Is this a flood warning?

No. These are observed and forecast river levels from National Weather Service gauges. Flood warnings are issued separately by NWS forecast offices and are listed on this site's US weather alerts pages. A river can be in flood at a gauge without a warning for your street, and a flash flood can happen far from any gauge, so follow local warnings and officials.

US rivers in flood, every state · New Hampshire weather alerts · River flood forecast worldwide

River stages and forecasts from the NOAA National Weather Service, National Water Prediction Service (public domain). water.noaa.gov has each gauge's full hydrograph.