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Hydrograph River at a Glance Download
Long Island Sound at New Haven (IN MLLW) Tide Height (ft)Observed: 3.75 ft at 5:48PM Jan 23, 2021Observed: 3.83 ft at 5:54PM Jan 23, 2021Observed: 3.91 ft at 6:00PM Jan 23, 2021Observed: 3.98 ft at 6:06PM Jan 23, 2021Observed: 4.03 ft at 6:12PM Jan 23, 2021Observed: 4.07 ft at 6:18PM Jan 23, 2021Observed: 4.13 ft at 6:24PM Jan 23, 2021Observed: 4.19 ft at 6:30PM Jan 23, 2021Observed: 4.28 ft at 6:36PM Jan 23, 2021Observed: 4.36 ft at 6:42PM Jan 23, 2021Observed: 4.44 ft at 6:48PM Jan 23, 2021Observed: 4.51 ft at 7:06PM Jan 23, 2021Observed: 4.5 ft at 7:12PM Jan 23, 2021Observed: 4.49 ft at 7:18PM Jan 23, 2021Observed: 4.47 ft at 7:24PM Jan 23, 2021Observed: 4.43 ft at 7:30PM Jan 23, 2021Observed: 4.4 ft at 7:36PM Jan 23, 2021Observed: 4.39 ft at 7:42PM Jan 23, 2021Observed: 4.37 ft at 7:48PM Jan 23, 2021Observed: 4.37 ft at 7:54PM Jan 23, 2021Observed: 4.33 ft at 8:00PM Jan 23, 2021Observed: 4.28 ft at 8:06PM Jan 23, 2021Observed: 4.24 ft at 8:12PM Jan 23, 2021Observed: 4.18 ft at 8:18PM Jan 23, 2021Observed: 3.73 ft at 8:48PM Jan 23, 2021Observed: 3.64 ft at 8:54PM Jan 23, 2021Observed: 3.53 ft at 9:00PM Jan 23, 2021Observed: 3.45 ft at 9:06PM Jan 23, 2021Observed: 3.37 ft at 9:12PM Jan 23, 2021Observed: 3.28 ft at 9:18PM Jan 23, 2021Observed: 3.19 ft at 9:24PM Jan 23, 2021Observed: 3.06 ft at 9:30PM Jan 23, 2021Observed: 2.95 ft at 9:36PM Jan 23, 2021Observed: 2.82 ft at 9:42PM Jan 23, 2021Observed: 2.71 ft at 9:48PM Jan 23, 2021Observed: 2.59 ft at 9:54PM Jan 23, 2021Observed: 2.49 ft at 10:00PM Jan 23, 2021Observed: 2.38 ft at 10:06PM Jan 23, 2021Observed: 2.29 ft at 10:12PM Jan 23, 2021Observed: 2.19 ft at 10:18PM Jan 23, 2021Observed: 2.06 ft at 10:24PM Jan 23, 2021Observed: 1.94 ft at 10:30PM Jan 23, 2021Observed: 1.82 ft at 10:36PM Jan 23, 2021Observed: 1.73 ft at 10:42PM Jan 23, 2021Observed: 1.6 ft at 10:48PM Jan 23, 2021Observed: 1.51 ft at 10:54PM Jan 23, 2021Observed: 1.42 ft at 11:00PM Jan 23, 2021Observed: 1.32 ft at 11:06PM Jan 23, 2021Observed: 1.22 ft at 11:12PM Jan 23, 2021Observed: 1.12 ft at 11:18PM Jan 23, 2021Observed: 0.4 ft at 12:18AM Jan 24, 2021Observed: 0.36 ft at 12:24AM Jan 24, 2021Observed: 0.33 ft at 12:30AM Jan 24, 2021Observed: 0.28 ft at 12:36AM Jan 24, 2021Observed: 0.23 ft at 12:42AM Jan 24, 2021Observed: 0.08 ft at 12:54AM Jan 24, 2021Observed: 0.02 ft at 1:00AM Jan 24, 2021Observed: 0.15 ft at 1:48AM Jan 24, 2021Observed: 0.21 ft at 1:54AM Jan 24, 2021Observed: 0.25 ft at 2:00AM Jan 24, 2021Observed: 0.31 ft at 2:06AM Jan 24, 2021Observed: 0.35 ft at 2:12AM Jan 24, 2021Observed: 0.41 ft at 2:18AM Jan 24, 2021Observed: 0.47 ft at 2:24AM Jan 24, 2021Observed: 0.55 ft at 2:30AM Jan 24, 2021Observed: 0.65 ft at 2:36AM Jan 24, 2021Observed: 0.75 ft at 2:42AM Jan 24, 2021Observed: 0.85 ft at 2:48AM Jan 24, 2021Observed: 0.95 ft at 2:54AM Jan 24, 2021Observed: 1.05 ft at 3:00AM Jan 24, 2021Observed: 1.15 ft at 3:06AM Jan 24, 2021Observed: 1.23 ft at 3:12AM Jan 24, 2021Observed: 1.41 ft at 3:24AM Jan 24, 2021Observed: 1.5 ft at 3:30AM Jan 24, 2021Observed: 1.6 ft at 3:36AM Jan 24, 2021Observed: 1.73 ft at 3:42AM Jan 24, 2021Observed: 1.83 ft at 3:48AM Jan 24, 2021Observed: 3 ft at 4:48AM Jan 24, 2021Observed: 3.12 ft at 4:54AM Jan 24, 2021Observed: 3.24 ft at 5:00AM Jan 24, 2021Observed: 3.36 ft at 5:06AM Jan 24, 2021Observed: 3.44 ft at 5:12AM Jan 24, 2021Observed: 3.53 ft at 5:18AM Jan 24, 2021Observed: 4.13 ft at 5:54AM Jan 24, 2021Observed: 4.23 ft at 6:00AM Jan 24, 2021Observed: 4.34 ft at 6:06AM Jan 24, 2021Observed: 4.43 ft at 6:12AM Jan 24, 2021Observed: 4.51 ft at 6:18AM Jan 24, 2021Observed: 4.57 ft at 6:24AM Jan 24, 2021Observed: 4.64 ft at 6:30AM Jan 24, 2021Observed: 4.67 ft at 6:36AM Jan 24, 2021Observed: 4.7 ft at 6:42AM Jan 24, 2021Observed: 4.76 ft at 6:54AM Jan 24, 2021Observed: 4.78 ft at 7:00AM Jan 24, 2021Observed: 4.8 ft at 7:06AM Jan 24, 2021Observed: 4.81 ft at 7:12AM Jan 24, 2021Observed: 4.85 ft at 7:18AM Jan 24, 2021Observed: 4.84 ft at 7:24AM Jan 24, 2021Observed: 4.86 ft at 7:30AM Jan 24, 2021Observed: 4.89 ft at 7:36AM Jan 24, 2021Observed: 4.88 ft at 7:42AM Jan 24, 2021Observed: 4.89 ft at 7:48AM Jan 24, 2021Observed: 4.87 ft at 7:54AM Jan 24, 2021Observed: 4.86 ft at 8:00AM Jan 24, 2021Observed: 4.81 ft at 8:06AM Jan 24, 2021Observed: 4.76 ft at 8:12AM Jan 24, 2021Observed: 4.71 ft at 8:18AM Jan 24, 2021Observed: 4.62 ft at 8:24AM Jan 24, 2021Observed: 4.55 ft at 8:30AM Jan 24, 2021Observed: 4.45 ft at 8:36AM Jan 24, 2021Observed: 4.37 ft at 8:42AM Jan 24, 2021Observed: 4.29 ft at 8:48AM Jan 24, 2021Observed: 4.22 ft at 8:54AM Jan 24, 2021Observed: 4.12 ft at 9:00AM Jan 24, 2021Observed: 4.06 ft at 9:06AM Jan 24, 2021Observed: 3.97 ft at 9:12AM Jan 24, 2021Observed: 3.9 ft at 9:18AM Jan 24, 2021Observed: 3.8 ft at 9:24AM Jan 24, 2021Observed: 3.69 ft at 9:30AM Jan 24, 2021Observed: 3.57 ft at 9:36AM Jan 24, 2021Observed: 3.47 ft at 9:42AM Jan 24, 2021Observed: 3.36 ft at 9:48AM Jan 24, 2021Observed: 2.76 ft at 10:18AM Jan 24, 2021Observed: 2.65 ft at 10:24AM Jan 24, 2021Observed: 2.54 ft at 10:30AM Jan 24, 2021Observed: 2.43 ft at 10:36AM Jan 24, 2021Observed: 2.33 ft at 10:42AM Jan 24, 2021Observed: 0.97 ft at 11:48AM Jan 24, 2021Observed: 0.89 ft at 11:54AM Jan 24, 2021Observed: 0.77 ft at 12:00PM Jan 24, 2021Observed: 0.69 ft at 12:06PM Jan 24, 2021Observed: 0.6 ft at 12:12PM Jan 24, 2021Observed: 0.52 ft at 12:18PM Jan 24, 2021Observed: 0.78 ft at 4:18PM Jan 24, 2021Observed: 0.92 ft at 4:24PM Jan 24, 2021Observed: 1.06 ft at 4:30PM Jan 24, 2021Observed: 1.19 ft at 4:36PM Jan 24, 2021Observed: 1.3 ft at 4:42PM Jan 24, 2021Observed: 1.39 ft at 4:48PM Jan 24, 2021Observed: 1.46 ft at 4:54PM Jan 24, 2021Observed: 1.54 ft at 5:00PM Jan 24, 2021Observed: 1.59 ft at 5:06PM Jan 24, 2021Observed: 1.67 ft at 5:12PM Jan 24, 2021Observed: 1.77 ft at 5:18PM Jan 24, 2021Observed: 2.35 ft at 5:48PM Jan 24, 2021Observed: 2.46 ft at 5:54PM Jan 24, 2021Observed: 2.57 ft at 6:00PM Jan 24, 2021Observed: 2.67 ft at 6:06PM Jan 24, 2021Observed: 2.77 ft at 6:12PM Jan 24, 2021Observed: 2.86 ft at 6:18PM Jan 24, 2021Observed: 2.93 ft at 6:24PM Jan 24, 2021Observed: 3 ft at 6:30PM Jan 24, 2021Observed: 3.08 ft at 6:36PM Jan 24, 2021Observed: 3.17 ft at 6:42PM Jan 24, 2021Observed: 3.24 ft at 6:48PM Jan 24, 2021Observed: 3.72 ft at 7:18PM Jan 24, 2021Observed: 3.97 ft at 7:54PM Jan 24, 2021Observed: 4.01 ft at 8:00PM Jan 24, 2021Observed: 4.04 ft at 8:06PM Jan 24, 2021Observed: 4.07 ft at 8:12PM Jan 24, 2021Observed: 4.08 ft at 8:18PM Jan 24, 2021Observed: 3.77 ft at 9:18PM Jan 24, 2021Observed: 3.69 ft at 9:24PM Jan 24, 2021Observed: 3.63 ft at 9:30PM Jan 24, 2021Observed: 3.56 ft at 9:36PM Jan 24, 2021Observed: 3.49 ft at 9:42PM Jan 24, 2021Observed: 3.41 ft at 9:48PM Jan 24, 2021Observed: 2.96 ft at 10:18PM Jan 24, 2021Observed: 2.85 ft at 10:24PM Jan 24, 2021Observed: 2.76 ft at 10:30PM Jan 24, 2021Observed: 2.69 ft at 10:36PM Jan 24, 2021Observed: 2.61 ft at 10:42PM Jan 24, 2021Observed: 2.5 ft at 10:48PM Jan 24, 2021Observed: 2.29 ft at 11:00PM Jan 24, 2021Observed: 2.21 ft at 11:06PM Jan 24, 2021Observed: 1 ft at 12:48AM Jan 25, 2021Observed: 0.96 ft at 12:54AM Jan 25, 2021Observed: 0.89 ft at 1:00AM Jan 25, 2021Observed: 0.84 ft at 1:06AM Jan 25, 2021Observed: 0.8 ft at 1:12AM Jan 25, 2021Observed: 0.75 ft at 1:18AM Jan 25, 2021Observed: 0.72 ft at 1:24AM Jan 25, 2021Observed: 0.69 ft at 1:30AM Jan 25, 2021Observed: 0.66 ft at 1:36AM Jan 25, 2021Observed: 0.64 ft at 1:42AM Jan 25, 2021Observed: 0.62 ft at 1:48AM Jan 25, 2021Observed: 0.63 ft at 1:54AM Jan 25, 2021Observed: 0.66 ft at 2:00AM Jan 25, 2021Observed: 0.68 ft at 2:06AM Jan 25, 2021Observed: 0.71 ft at 2:12AM Jan 25, 2021Observed: 0.75 ft at 2:24AM Jan 25, 2021Observed: 0.78 ft at 2:30AM Jan 25, 2021Observed: 0.82 ft at 2:36AM Jan 25, 2021Observed: 0.86 ft at 2:42AM Jan 25, 2021Observed: 0.92 ft at 2:48AM Jan 25, 2021Observed: 0.99 ft at 2:54AM Jan 25, 2021Observed: 1.07 ft at 3:00AM Jan 25, 2021Observed: 1.16 ft at 3:06AM Jan 25, 2021Observed: 1.24 ft at 3:12AM Jan 25, 2021Observed: 1.34 ft at 3:18AM Jan 25, 2021Observed: 1.85 ft at 3:48AM Jan 25, 2021Observed: 1.99 ft at 3:54AM Jan 25, 2021Observed: 2.11 ft at 4:00AM Jan 25, 2021Observed: 2.25 ft at 4:06AM Jan 25, 2021Observed: 2.38 ft at 4:12AM Jan 25, 2021Observed: 2.52 ft at 4:18AM Jan 25, 2021Observed: 2.64 ft at 4:24AM Jan 25, 2021Observed: 2.79 ft at 4:30AM Jan 25, 2021Observed: 2.93 ft at 4:36AM Jan 25, 2021Observed: 3.07 ft at 4:42AM Jan 25, 2021Observed: 3.21 ft at 4:48AM Jan 25, 2021Observed: 3.35 ft at 4:54AM Jan 25, 2021Observed: 3.47 ft at 5:00AM Jan 25, 2021Observed: 3.6 ft at 5:06AM Jan 25, 2021Observed: 3.73 ft at 5:12AM Jan 25, 2021Observed: 3.88 ft at 5:18AM Jan 25, 2021Observed: 4.02 ft at 5:24AM Jan 25, 2021Observed: 4.18 ft at 5:30AM Jan 25, 2021Observed: 4.34 ft at 5:36AM Jan 25, 2021Observed: 4.48 ft at 5:42AM Jan 25, 2021Observed: 4.75 ft at 5:54AM Jan 25, 2021Observed: 4.87 ft at 6:00AM Jan 25, 2021Observed: 4.97 ft at 6:06AM Jan 25, 2021Observed: 5.09 ft at 6:12AM Jan 25, 2021Observed: 5.31 ft at 6:24AM Jan 25, 2021Observed: 5.43 ft at 6:30AM Jan 25, 2021Observed: 5.54 ft at 6:36AM Jan 25, 2021Observed: 5.64 ft at 6:42AM Jan 25, 2021Observed: 5.75 ft at 6:48AM Jan 25, 2021Observed: 5.86 ft at 6:54AM Jan 25, 2021Observed: 5.95 ft at 7:00AM Jan 25, 2021Observed: 6.03 ft at 7:06AM Jan 25, 2021Observed: 6.12 ft at 7:12AM Jan 25, 2021Observed: 6.2 ft at 7:18AM Jan 25, 2021Observed: 6.28 ft at 7:24AM Jan 25, 2021Observed: 6.36 ft at 7:30AM Jan 25, 2021Observed: 6.42 ft at 7:36AM Jan 25, 2021Observed: 6.48 ft at 7:42AM Jan 25, 2021Observed: 6.52 ft at 7:48AM Jan 25, 2021Observed: 6.56 ft at 7:54AM Jan 25, 2021Observed: 6.6 ft at 8:00AM Jan 25, 2021Observed: 6.63 ft at 8:06AM Jan 25, 2021Observed: 6.65 ft at 8:12AM Jan 25, 2021Observed: 6.68 ft at 8:24AM Jan 25, 2021Observed: 6.68 ft at 8:30AM Jan 25, 2021Highest Observation: 6.69 ft at 8:36AM Jan 25, 2021Observed: 6.68 ft at 8:42AM Jan 25, 2021Observed: 6.4 ft at 9:18AM Jan 25, 2021Observed: 6.31 ft at 9:24AM Jan 25, 2021Observed: 6.25 ft at 9:30AM Jan 25, 2021Observed: 6.2 ft at 9:36AM Jan 25, 2021Observed: 6.15 ft at 9:42AM Jan 25, 2021Observed: 6.07 ft at 9:48AM Jan 25, 2021Observed: 5.51 ft at 10:18AM Jan 25, 2021Observed: 5.37 ft at 10:24AM Jan 25, 2021Observed: 5.25 ft at 10:30AM Jan 25, 2021Observed: 5.13 ft at 10:36AM Jan 25, 2021Observed: 5.02 ft at 10:42AM Jan 25, 2021Observed: 4.92 ft at 10:48AM Jan 25, 2021Observed: 4.8 ft at 10:54AM Jan 25, 2021Observed: 4.67 ft at 11:00AM Jan 25, 2021Observed: 4.52 ft at 11:06AM Jan 25, 2021Observed: 4.37 ft at 11:12AM Jan 25, 2021Observed: 4.21 ft at 11:18AM Jan 25, 2021Observed: 4.07 ft at 11:24AM Jan 25, 2021Observed: 3.94 ft at 11:30AM Jan 25, 2021Observed: 3.78 ft at 11:36AM Jan 25, 2021Observed: 3.66 ft at 11:42AM Jan 25, 2021Observed: 3.41 ft at 11:54AM Jan 25, 2021Observed: 3.28 ft at 12:00PM Jan 25, 2021Observed: 3.18 ft at 12:06PM Jan 25, 2021Observed: 3.07 ft at 12:12PM Jan 25, 2021Observed: 2.79 ft at 12:24PM Jan 25, 2021Observed: 2.63 ft at 12:30PM Jan 25, 2021Observed: 2.49 ft at 12:36PM Jan 25, 2021Observed: 2.36 ft at 12:42PM Jan 25, 2021Observed: 2.25 ft at 12:48PM Jan 25, 2021Observed: 2.14 ft at 12:54PM Jan 25, 2021Observed: 2.04 ft at 1:00PM Jan 25, 2021Observed: 1.93 ft at 1:06PM Jan 25, 2021Observed: 1.84 ft at 1:12PM Jan 25, 2021Observed: 1.75 ft at 1:18PM Jan 25, 2021Observed: 1.65 ft at 1:24PM Jan 25, 2021Observed: 1.54 ft at 1:30PM Jan 25, 2021Observed: 1.42 ft at 1:36PM Jan 25, 2021Observed: 1.31 ft at 1:42PM Jan 25, 2021Observed: 1.14 ft at 1:54PM Jan 25, 2021Observed: 1.1 ft at 2:00PM Jan 25, 2021Observed: 1.06 ft at 2:06PM Jan 25, 2021Observed: 1.04 ft at 2:12PM Jan 25, 2021Observed: 1.01 ft at 2:18PM Jan 25, 2021Observed: 0.96 ft at 2:24PM Jan 25, 2021Observed: 0.9 ft at 2:30PM Jan 25, 2021Observed: 0.85 ft at 2:36PM Jan 25, 2021Observed: 0.79 ft at 2:42PM Jan 25, 2021Observed: 0.84 ft at 3:18PM Jan 25, 2021Observed: 0.88 ft at 3:24PM Jan 25, 2021Observed: 0.93 ft at 3:30PM Jan 25, 2021Observed: 1 ft at 3:36PM Jan 25, 2021Observed: 1.06 ft at 3:42PM Jan 25, 2021Observed: 1.47 ft at 4:18PM Jan 25, 2021Observed: 2.06 ft at 4:48PM Jan 25, 2021Observed: 2.18 ft at 4:54PM Jan 25, 2021Observed: 2.3 ft at 5:00PM Jan 25, 2021Observed: 2.41 ft at 5:06PM Jan 25, 2021Observed: 2.51 ft at 5:12PM Jan 25, 2021Observed: 2.63 ft at 5:18PM Jan 25, 2021NWHC3(plotting HMIRP) Graph Created (5:46PM Jan 25, 2021)ObservedLatest observed value: 2.63 ft at 5:18 PM EST 25-Jan-2021. Flood Stage is 8.6 ft
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About this graph
Tabular Data (UTC)
Tabular Data (EST)
XML Data
RSS Files
Datum: Not Available
Metadata
Reliability of the Forecast: Forecast data shown here are guidance values only. Please refer to your local NWS office.

NOTE: Forecasts are not available for the Long Island Sound at New Haven (IN MLLW). Only observed stages are available for this point.

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Flood Categories (in feet)
Major Flood Stage: 10.5
Moderate Flood Stage: 9.2
Flood Stage: 8.6
Action Stage: 0
Low Stage (in feet): 0

Historic Crests
Currently none available.

Recent Crests
Currently none available.

Low Water Records
Currently none available.
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
11.6 Longshore Drive from LI sound becomes impassable with several feet of water. Two to three feet of inundation into roadway properties surrounding corner of Water Street and River Street along the West River.One to two feet of inundation across Long Wharf Drive and surrounding properties including IKEA shopping center.
9.6 Homes surrounded by water in East Haven. Water up to car windows on Cosey Beach Avenue. Several neighborhood roads in Silver Sands Beach 2 to 4 feet of inundation. New Haven, 2 to 3 feet of flooding on Middletown avenue in front of Petrillos used auto parts, just east of Quinnipiac River.
9.2 Two to three feet of flooding on Middletown Avenue in front of Petrillos used auto parts, just east of the Quinnipiac River.
8.6 East Haven, about 1 foot of inundation on Ellis Road. Minor inundation at Bruce and Johnson's West. Inundation onto Route 146 and Limewood Avenue. Minor inundation of Westland Avenue and Bayview Beach. Minor inundation of Middle Avenue.
About This Location Collapse

Latitude: 41.283300° N, Longitude: 72.908300° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 8.6 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 Not Available Not Available 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:

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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
Upton Weather Forecast Office
175 Brookhaven Ave. Bldg. NWS-1
Upton, NY 11973
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Page last modified: 30-Oct-2020 4:10 PM
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