Connecticut River at Hartford

Last updated: Jun 22, 2025, 5:57 AM UTC
No watches, warnings or advisories are in effect for this area.

Flood Impacts 🅘

  • 32 - This is a serious and life threatening flood episode. Follow the direction of your local emergency management officals. If asked to evacuate, do so immediately. All flood protection measures must be rushed to completion in flood prone areas. Towns from Windsor Locks and East Windsor south through Middletown, Haddam and Portland to the river mouth at Old Saybrook will experience significant flooding outside of levees and flood protection walls.
  • 30 - This is a serious and life threatening flood episode. Follow the direction of your local emergency management officals. If asked to evacuate, do so immediately. All flood protection measures must be rushed to completion in flood prone areas. Towns from Windsor Locks and East Windsor south through Middletown, Haddam and Portland to Old Saybrook will experience significant flooding outside of levees and flood protection walls.
  • 28 - This is a serious flood episode. Follow the direction of your local emergency management officals. If asked to evacuate, do so immediately. All flood protection measures must be rushed to completion in flood prone areas. Towns from Windsor Locks and East Windsor south through Haddam and Portland will experience significant flooding outside of levees and flood protection walls. Further downstream through Cromwell, Middletown and further downstream this is a serious potentially life threatening flood.

Gauge Info

Coordinates 41.7691, -72.6676
RFC NERFC
State CT
WFO BOX
County Hartford
Data Provider(s)
US Geological Survey USGS--Water Resources of the United States
USGS 01190070

Gauge Location

Recent Crests

1. 19.20 ft on 05-12-2025
2. 17.02 ft on 05-07-2025
3. 18.24 ft on 03-19-2025
4. 19.95 ft on 04-14-2024
5. 19.11 ft on 03-09-2024 (P)

Historic Crests

1. 37.60 ft on 03-21-1936
2. 35.40 ft on 09-23-1938
3. 30.74 ft on 06-01-1984
4. 30.60 ft on 08-20-1955
5. 29.30 ft on 05-01-1854

Vertical Datum Table

type NAVD88 NGVD29
major Flooding 27.00 ft28.00 ft
moderate Flooding 23.00 ft24.00 ft
minor Flooding 15.00 ft16.00 ft
action 11.00 ft12.00 ft
Latest Value 3.66 ft4.66 ft
Gauge Zero -1.00 ft0.00 ft

Gauge Photos

No Images Found

Probability Information

Photo 1 of 3

Unique Local Info

Potential River Levels - Used to

Potential River Levels
Used to Estimate the Chance of Flooding and the Range of Possible River Levels
10 Day (HEFS) 10 Day (NAEFS) 10 Day (GEFS)
HEFS Ensemble NAEFS Ensemble GEFS Ensemble

Note: Use the official hydrograph at the top of this web page for river levels within the next 72 hours.

Click individual graphics to enlarge.

Collaborative Agencies

The National Weather Service prepares its forecasts and other services in collaboration with agencies like the US Geological Survey, US Bureau of Reclamation, US Army Corps of Engineers, Natural Resource Conservation Service, National Park Service, ALERT Users Group, Bureau of Indian Affairs, and many state and local emergency managers across the country. For details, please click here.

WFO Information

Weather Forecast Office
Boston / Norton
46 Commerce Way
Norton, MA 02766
Official Homepage