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Web Portal Changes: The Advanced Hydrologic Prediction Service (AHPS) hosted at https://water.weather.gov will be replaced by the National Water Prediction Service (NWPS), with a target of March 2024. Existing AHPS content and features will be preserved and expanded within NWPS.

Experimental National Water Center Products: The National Hydrologic Discussion, Area Hydrologic Discussion, and Flood Hazard Outlook, and real-time geospatial services depicting River Forecast Center and National Water Model forecasts, continue to be accessible via https://www.weather.gov/owp/operations, as described in the StoryMap here.



Hydrograph River at a Glance Download
Housatonic River at Stevenson Stage (ft)Flow (cfs)Observed: 2.47 ft at 1:30PM May 28, 2023Observed: 2.48 ft at 1:45PM May 28, 2023Observed: 2.48 ft at 2:00PM May 28, 2023Observed: 2.47 ft at 2:15PM May 28, 2023Observed: 2.48 ft at 2:30PM May 28, 2023Observed: 2.48 ft at 2:45PM May 28, 2023Observed: 2.47 ft at 3:00PM May 28, 2023Observed: 2.48 ft at 3:15PM May 28, 2023Observed: 2.48 ft at 3:30PM May 28, 2023Observed: 2.47 ft at 3:45PM May 28, 2023Observed: 2.48 ft at 4:00PM May 28, 2023Observed: 2.48 ft at 4:15PM May 28, 2023Observed: 2.48 ft at 4:30PM May 28, 2023Observed: 2.47 ft at 4:45PM May 28, 2023Observed: 2.47 ft at 5:00PM May 28, 2023Observed: 2.47 ft at 5:15PM May 28, 2023Observed: 2.47 ft at 5:30PM May 28, 2023Observed: 2.48 ft at 5:45PM May 28, 2023Observed: 2.82 ft at 6:00PM May 28, 2023Observed: 4.78 ft at 6:15PM May 28, 2023Observed: 5.93 ft at 6:30PM May 28, 2023Observed: 6.56 ft at 6:45PM May 28, 2023Observed: 6.62 ft at 7:00PM May 28, 2023Observed: 6.64 ft at 7:15PM May 28, 2023Observed: 6.63 ft at 7:30PM May 28, 2023Observed: 6.63 ft at 7:45PM May 28, 2023Observed: 6.64 ft at 8:00PM May 28, 2023Observed: 6.64 ft at 8:01PM May 28, 2023Observed: 6.64 ft at 8:15PM May 28, 2023Observed: 6.64 ft at 8:30PM May 28, 2023Observed: 6.64 ft at 8:45PM May 28, 2023Observed: 6.64 ft at 9:00PM May 28, 2023Highest Observation: 6.65 ft at 9:15PM May 28, 2023Observed: 6.44 ft at 9:30PM May 28, 2023Observed: 5.78 ft at 9:45PM May 28, 2023Observed: 4.65 ft at 10:00PM May 28, 2023Observed: 3.48 ft at 10:15PM May 28, 2023Observed: 2.99 ft at 10:30PM May 28, 2023Observed: 2.77 ft at 10:45PM May 28, 2023Observed: 2.67 ft at 11:00PM May 28, 2023Observed: 2.63 ft at 11:15PM May 28, 2023Observed: 2.58 ft at 11:30PM May 28, 2023Observed: 2.55 ft at 11:45PM May 28, 2023Observed: 2.53 ft at 12:00AM May 29, 2023Observed: 2.52 ft at 12:15AM May 29, 2023Observed: 2.51 ft at 12:30AM May 29, 2023Observed: 2.5 ft at 12:45AM May 29, 2023Observed: 2.5 ft at 1:00AM May 29, 2023Observed: 2.51 ft at 1:15AM May 29, 2023Observed: 2.5 ft at 1:30AM May 29, 2023Observed: 2.5 ft at 1:45AM May 29, 2023Observed: 2.5 ft at 2:00AM May 29, 2023Observed: 2.49 ft at 2:15AM May 29, 2023Observed: 2.5 ft at 2:30AM May 29, 2023Observed: 2.5 ft at 2:45AM May 29, 2023Observed: 2.5 ft at 3:00AM May 29, 2023Observed: 2.49 ft at 3:15AM May 29, 2023Observed: 2.49 ft at 3:30AM May 29, 2023Observed: 2.49 ft at 3:45AM May 29, 2023Observed: 2.49 ft at 4:00AM May 29, 2023Observed: 2.5 ft at 4:15AM May 29, 2023Observed: 2.49 ft at 4:30AM May 29, 2023Observed: 2.49 ft at 4:45AM May 29, 2023Observed: 2.49 ft at 5:00AM May 29, 2023Observed: 2.5 ft at 5:15AM May 29, 2023Observed: 2.49 ft at 5:30AM May 29, 2023Observed: 2.5 ft at 5:45AM May 29, 2023Observed: 2.5 ft at 6:00AM May 29, 2023Observed: 2.5 ft at 6:15AM May 29, 2023Observed: 2.5 ft at 6:30AM May 29, 2023Observed: 2.49 ft at 6:45AM May 29, 2023Observed: 2.5 ft at 7:00AM May 29, 2023Observed: 2.52 ft at 7:15AM May 29, 2023Observed: 2.54 ft at 7:30AM May 29, 2023Observed: 2.55 ft at 7:45AM May 29, 2023Observed: 2.56 ft at 8:00AM May 29, 2023Observed: 2.57 ft at 8:15AM May 29, 2023Observed: 2.58 ft at 8:30AM May 29, 2023Observed: 2.58 ft at 8:45AM May 29, 2023Observed: 2.57 ft at 9:00AM May 29, 2023Observed: 2.57 ft at 9:15AM May 29, 2023Observed: 2.58 ft at 9:30AM May 29, 2023Observed: 2.58 ft at 9:45AM May 29, 2023Observed: 2.57 ft at 10:00AM May 29, 2023Observed: 2.57 ft at 10:15AM May 29, 2023Observed: 2.58 ft at 10:30AM May 29, 2023Observed: 2.58 ft at 10:45AM May 29, 2023Observed: 2.58 ft at 11:00AM May 29, 2023Observed: 2.58 ft at 11:15AM May 29, 2023Observed: 2.58 ft at 11:30AM May 29, 2023Observed: 2.58 ft at 11:45AM May 29, 2023Observed: 2.58 ft at 12:00PM May 29, 2023Observed: 2.58 ft at 12:15PM May 29, 2023Observed: 2.58 ft at 12:30PM May 29, 2023Observed: 2.58 ft at 12:45PM May 29, 2023Observed: 2.58 ft at 1:00PM May 29, 2023Observed: 2.58 ft at 1:15PM May 29, 2023Observed: 2.59 ft at 1:30PM May 29, 2023Observed: 2.58 ft at 1:45PM May 29, 2023Observed: 2.57 ft at 2:00PM May 29, 2023Observed: 2.58 ft at 2:15PM May 29, 2023Observed: 2.59 ft at 2:30PM May 29, 2023Observed: 2.57 ft at 2:45PM May 29, 2023Observed: 2.53 ft at 3:00PM May 29, 2023Observed: 2.51 ft at 3:15PM May 29, 2023Observed: 2.49 ft at 3:30PM May 29, 2023Observed: 2.49 ft at 3:45PM May 29, 2023Observed: 2.49 ft at 4:00PM May 29, 2023Observed: 2.48 ft at 4:15PM May 29, 2023Observed: 2.49 ft at 4:30PM May 29, 2023Observed: 2.48 ft at 4:45PM May 29, 2023Observed: 2.48 ft at 5:00PM May 29, 2023Observed: 2.48 ft at 5:15PM May 29, 2023Observed: 2.49 ft at 5:30PM May 29, 2023Observed: 2.48 ft at 5:45PM May 29, 2023Observed: 2.78 ft at 6:00PM May 29, 2023Observed: 4.72 ft at 6:15PM May 29, 2023Observed: 5.48 ft at 6:30PM May 29, 2023Observed: 5.63 ft at 6:45PM May 29, 2023Observed: 5.65 ft at 7:00PM May 29, 2023Observed: 5.66 ft at 7:15PM May 29, 2023Observed: 5.66 ft at 7:30PM May 29, 2023Observed: 5.65 ft at 7:45PM May 29, 2023Observed: 5.65 ft at 8:00PM May 29, 2023Observed: 5.65 ft at 8:01PM May 29, 2023Observed: 4.62 ft at 8:15PM May 29, 2023Observed: 4.32 ft at 8:30PM May 29, 2023Observed: 4.22 ft at 8:45PM May 29, 2023Observed: 3.87 ft at 9:00PM May 29, 2023Observed: 3.11 ft at 9:15PM May 29, 2023Observed: 2.79 ft at 9:30PM May 29, 2023Observed: 2.63 ft at 9:45PM May 29, 2023Observed: 2.55 ft at 10:00PM May 29, 2023Observed: 2.51 ft at 10:15PM May 29, 2023Observed: 2.49 ft at 10:30PM May 29, 2023Observed: 2.48 ft at 10:45PM May 29, 2023Observed: 2.46 ft at 11:00PM May 29, 2023Observed: 2.46 ft at 11:15PM May 29, 2023Observed: 2.46 ft at 11:30PM May 29, 2023Observed: 2.45 ft at 11:45PM May 29, 2023Observed: 2.45 ft at 12:00AM May 30, 2023Observed: 2.45 ft at 12:15AM May 30, 2023Observed: 2.45 ft at 12:30AM May 30, 2023Observed: 2.46 ft at 12:45AM May 30, 2023Observed: 2.46 ft at 1:00AM May 30, 2023Observed: 2.46 ft at 1:15AM May 30, 2023Observed: 2.46 ft at 1:30AM May 30, 2023Observed: 2.46 ft at 1:45AM May 30, 2023Observed: 2.45 ft at 2:00AM May 30, 2023Observed: 2.45 ft at 2:01AM May 30, 2023Observed: 2.45 ft at 2:15AM May 30, 2023Observed: 2.45 ft at 2:30AM May 30, 2023Observed: 2.45 ft at 2:45AM May 30, 2023Observed: 2.44 ft at 3:00AM May 30, 2023Observed: 2.44 ft at 3:15AM May 30, 2023Observed: 2.44 ft at 3:30AM May 30, 2023Observed: 2.44 ft at 3:45AM May 30, 2023Observed: 2.44 ft at 4:00AM May 30, 2023Observed: 2.45 ft at 4:15AM May 30, 2023Observed: 2.45 ft at 4:30AM May 30, 2023Observed: 2.45 ft at 4:45AM May 30, 2023Observed: 2.45 ft at 5:00AM May 30, 2023Observed: 2.46 ft at 5:15AM May 30, 2023Observed: 2.45 ft at 5:30AM May 30, 2023Observed: 2.45 ft at 5:45AM May 30, 2023Observed: 2.46 ft at 6:00AM May 30, 2023Observed: 2.48 ft at 6:15AM May 30, 2023Observed: 2.47 ft at 6:30AM May 30, 2023Observed: 2.46 ft at 6:45AM May 30, 2023Observed: 2.46 ft at 7:00AM May 30, 2023Observed: 2.47 ft at 7:15AM May 30, 2023Observed: 2.46 ft at 7:30AM May 30, 2023Observed: 2.46 ft at 7:45AM May 30, 2023Observed: 2.46 ft at 8:00AM May 30, 2023Observed: 2.46 ft at 8:01AM May 30, 2023Observed: 2.46 ft at 8:15AM May 30, 2023Observed: 2.46 ft at 8:30AM May 30, 2023Observed: 2.45 ft at 8:45AM May 30, 2023Observed: 2.46 ft at 9:00AM May 30, 2023Observed: 2.47 ft at 9:15AM May 30, 2023Observed: 2.47 ft at 9:30AM May 30, 2023Observed: 2.46 ft at 9:45AM May 30, 2023Observed: 2.46 ft at 10:00AM May 30, 2023Observed: 2.47 ft at 10:15AM May 30, 2023Observed: 2.46 ft at 10:30AM May 30, 2023Observed: 2.46 ft at 10:45AM May 30, 2023Observed: 2.45 ft at 11:00AM May 30, 2023Observed: 2.45 ft at 11:15AM May 30, 2023Observed: 2.46 ft at 11:30AM May 30, 2023Observed: 2.46 ft at 11:45AM May 30, 2023Observed: 2.45 ft at 12:00PM May 30, 2023Observed: 2.46 ft at 12:15PM May 30, 2023Observed: 2.45 ft at 12:30PM May 30, 2023Observed: 2.46 ft at 12:45PM May 30, 2023Observed: 2.46 ft at 1:00PM May 30, 2023Observed: 2.46 ft at 1:15PM May 30, 2023Observed: 2.46 ft at 1:30PM May 30, 2023Observed: 2.46 ft at 1:45PM May 30, 2023Observed: 2.45 ft at 2:00PM May 30, 2023Observed: 2.46 ft at 2:15PM May 30, 2023Observed: 2.46 ft at 2:30PM May 30, 2023Observed: 2.46 ft at 2:45PM May 30, 2023Observed: 2.46 ft at 3:00PM May 30, 2023Observed: 2.45 ft at 3:15PM May 30, 2023Observed: 2.46 ft at 3:30PM May 30, 2023Observed: 2.46 ft at 3:45PM May 30, 2023Observed: 2.46 ft at 4:00PM May 30, 2023Observed: 2.45 ft at 4:15PM May 30, 2023Observed: 2.45 ft at 4:30PM May 30, 2023Observed: 2.45 ft at 4:45PM May 30, 2023Observed: 2.46 ft at 5:00PM May 30, 2023Observed: 2.44 ft at 5:15PM May 30, 2023Observed: 2.44 ft at 5:30PM May 30, 2023Observed: 2.44 ft at 5:45PM May 30, 2023Observed: 2.58 ft at 6:00PM May 30, 2023Observed: 4.41 ft at 6:15PM May 30, 2023Observed: 5.44 ft at 6:30PM May 30, 2023Observed: 5.64 ft at 6:45PM May 30, 2023Observed: 5.67 ft at 7:00PM May 30, 2023Observed: 5.68 ft at 7:15PM May 30, 2023Observed: 5.69 ft at 7:30PM May 30, 2023Observed: 5.69 ft at 7:45PM May 30, 2023Observed: 5.68 ft at 8:00PM May 30, 2023Observed: 5.69 ft at 8:15PM May 30, 2023Observed: 5.69 ft at 8:30PM May 30, 2023Observed: 4.61 ft at 8:45PM May 30, 2023Observed: 3.64 ft at 9:00PM May 30, 2023Observed: 3.02 ft at 9:15PM May 30, 2023Observed: 2.76 ft at 9:30PM May 30, 2023Observed: 2.62 ft at 9:45PM May 30, 2023Observed: 2.55 ft at 10:00PM May 30, 2023Observed: 2.5 ft at 10:15PM May 30, 2023Observed: 2.44 ft at 10:30PM May 30, 2023Observed: 2.41 ft at 10:45PM May 30, 2023Observed: 2.38 ft at 11:00PM May 30, 2023Observed: 2.38 ft at 11:15PM May 30, 2023Observed: 2.38 ft at 11:30PM May 30, 2023Observed: 2.36 ft at 11:45PM May 30, 2023Observed: 2.36 ft at 12:00AM May 31, 2023Observed: 2.37 ft at 12:15AM May 31, 2023Observed: 2.37 ft at 12:30AM May 31, 2023Observed: 2.37 ft at 12:45AM May 31, 2023Observed: 2.37 ft at 1:00AM May 31, 2023Observed: 2.37 ft at 1:15AM May 31, 2023Observed: 2.37 ft at 1:30AM May 31, 2023Observed: 2.36 ft at 1:45AM May 31, 2023Observed: 2.36 ft at 2:00AM May 31, 2023Observed: 2.36 ft at 2:01AM May 31, 2023Observed: 2.36 ft at 2:15AM May 31, 2023Observed: 2.36 ft at 2:30AM May 31, 2023Observed: 2.37 ft at 2:45AM May 31, 2023Observed: 2.37 ft at 3:00AM May 31, 2023Observed: 2.36 ft at 3:15AM May 31, 2023Observed: 2.36 ft at 3:30AM May 31, 2023Observed: 2.36 ft at 3:45AM May 31, 2023Observed: 2.36 ft at 4:00AM May 31, 2023Observed: 2.37 ft at 4:15AM May 31, 2023Observed: 2.37 ft at 4:30AM May 31, 2023Observed: 2.37 ft at 4:45AM May 31, 2023Observed: 2.37 ft at 5:00AM May 31, 2023Observed: 2.38 ft at 5:15AM May 31, 2023Observed: 2.38 ft at 5:30AM May 31, 2023Observed: 2.37 ft at 5:45AM May 31, 2023Observed: 2.37 ft at 6:00AM May 31, 2023Observed: 2.38 ft at 6:15AM May 31, 2023Observed: 2.38 ft at 6:30AM May 31, 2023Observed: 2.43 ft at 6:45AM May 31, 2023Observed: 2.54 ft at 7:00AM May 31, 2023Observed: 2.61 ft at 7:15AM May 31, 2023Observed: 2.63 ft at 7:30AM May 31, 2023Observed: 2.64 ft at 7:45AM May 31, 2023Observed: 2.66 ft at 8:00AM May 31, 2023Observed: 2.64 ft at 8:15AM May 31, 2023Observed: 2.64 ft at 8:16AM May 31, 2023Observed: 2.61 ft at 8:30AM May 31, 2023Observed: 2.59 ft at 8:45AM May 31, 2023Observed: 2.58 ft at 9:00AM May 31, 2023Observed: 2.58 ft at 9:15AM May 31, 2023Observed: 2.59 ft at 9:30AM May 31, 2023Observed: 2.58 ft at 9:45AM May 31, 2023Observed: 2.57 ft at 10:00AM May 31, 2023Observed: 2.57 ft at 10:15AM May 31, 2023Observed: 2.58 ft at 10:30AM May 31, 2023Observed: 2.56 ft at 10:45AM May 31, 2023Observed: 2.52 ft at 11:00AM May 31, 2023Observed: 2.51 ft at 11:15AM May 31, 2023Observed: 2.51 ft at 11:30AM May 31, 2023Observed: 2.5 ft at 11:45AM May 31, 2023Observed: 2.48 ft at 12:00PM May 31, 2023Observed: 2.48 ft at 12:15PM May 31, 2023Observed: 2.49 ft at 12:30PM May 31, 2023Forecast: 2.5 ft 2:00PM May 31, 2023Highest Forecast: 5.7 ft 8:00PM May 31, 2023Forecast: 2.4 ft 2:00AM Jun 01, 2023Forecast: 2.5 ft 8:00AM Jun 01, 2023Forecast: 2.4 ft 2:00PM Jun 01, 2023Highest Forecast: 5.7 ft 8:00PM Jun 01, 2023Forecast: 2.5 ft 2:00AM Jun 02, 2023Forecast: 2.5 ft 8:00AM Jun 02, 2023Forecast: 2.5 ft 2:00PM Jun 02, 2023Highest Forecast: 5.7 ft 8:00PM Jun 02, 2023Forecast: 2.4 ft 2:00AM Jun 03, 2023Forecast: 2.4 ft 8:00AM Jun 03, 2023USGS--Water Resources of the United StatesSTVC3(plotting HGIRG) Graph Created (1:15PM May 31, 2023)ObservedForecast (issued 10:48AM May 31)Latest observed value: 2.49 ft at 12:30 PM EDT 31-May-2023. Flood Stage is 11 ft
Printable Image
About this graph
Tabular Data (UTC)
Tabular Data (EDT)
XML Data
RSS Files
Datum: Not Available
Metadata
NOTE: Gauge reading affected by power generation.

NOTE: Forecasts for the Housatonic River at Stevenson are issued routinely year-round.

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Upstream Gauge - at Lake Lillinonah Upstream Gauge
Flood Categories (in feet)
Major Flood Stage: 20
Moderate Flood Stage: 15
Flood Stage: 11
Action Stage: 8
Low Stage (in feet): -9999

Historic Crests
(1) 24.50 ft on 10/16/1955
(2) 24.50 ft on 08/19/1955
(3) 23.50 ft on 03/12/1936
(4) 22.36 ft on 05/30/1984
(5) 21.68 ft on 03/07/2011
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 11.83 ft on 01/26/2023 (P)
(2) 13.59 ft on 04/08/2022 (P)
(3) 11.67 ft on 10/26/2021 (P)
(4) 16.97 ft on 09/02/2021 (P)
(5) 12.31 ft on 12/25/2020 (P)
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
(1) 0.75 ft on 11/09/2002

For more information on your flood risk go to www.floodsmart.gov.

Zoom Level:16
KML Image
Gauge LocationGauge Map Marker
Disclaimer
Latitude/Longitude Disclaimer: The gauge location shown in the above map is the approximate location based on the latitude/longitude coordinates provided to the NWS by the gauge owner.
Flood Impacts & Photos Collapse
If you notice any errors in the below information, please contact our Webmaster
20 Major flood stage with widespread inundation of low lying properties from Stevenson south to Bridgeport.
15 Moderate flood stage with numerous homes in the Maples area of Shelton affected.
11.5 Water reaches the Maples area of Shelton.
11 Flood stage.
9.5 Water reaches low lying areas in the Riverside neighborhood of Oxford.
8 The river is about a foot above the top end of normal generation levels.
7 The river is at the top end of normal generation levels.
2 The river is at the low end of normal generation levels.
About This Location Collapse

Latitude: 41.383889° N, Longitude: 73.168056° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 11 ft Interpreting hydrographs and NWS watch, warnings, and forecasts, and inundation maps
Vertical Datum Elevation
(gauge height = 0)
Elevation
(gauge height = flood stage)
Elevation information source
NAVD88 Not Available Not Available Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps
NGVD 29 24.98 ft 35.98 ft Older USGS topographic maps, NGVD29 benchmarks
MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks
Other Not Available Not Available  

Current/Historical Observations:

Additional Information Collapse
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) 7 Day (NAEFS) 7 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.

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Hydrologic Resources Additional Resources
Collaborative Agencies Collapse
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.
NWS Information
National Weather Service
Albany Weather Forecast Office
251 Fuller Road Suite B300
Albany, NY 12203-3650
(518) 435-9580
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Page last modified: 2-Nov-2020 7:30 PM
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