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Hydrograph River at a Glance Download
Long Island Sound at Stamford (IN MLLW) Tide Height (ft)Observed: 5.19 ft at 8:30PM Nov 28, 2021Observed: 4.49 ft at 9:00PM Nov 28, 2021Observed: 3.65 ft at 9:30PM Nov 28, 2021Observed: 2.82 ft at 10:00PM Nov 28, 2021Observed: 2.14 ft at 10:30PM Nov 28, 2021Observed: 1.62 ft at 11:00PM Nov 28, 2021Observed: 1.27 ft at 11:30PM Nov 28, 2021Observed: 1.03 ft at 12:00AM Nov 29, 2021Observed: 1.04 ft at 12:30AM Nov 29, 2021Observed: 1.26 ft at 1:00AM Nov 29, 2021Observed: 1.64 ft at 1:30AM Nov 29, 2021Observed: 2.17 ft at 2:00AM Nov 29, 2021Observed: 2.96 ft at 2:30AM Nov 29, 2021Observed: 3.82 ft at 3:00AM Nov 29, 2021Observed: 4.85 ft at 3:30AM Nov 29, 2021Observed: 5.71 ft at 4:00AM Nov 29, 2021Observed: 6.58 ft at 4:30AM Nov 29, 2021Observed: 7.18 ft at 5:00AM Nov 29, 2021Observed: 7.56 ft at 5:30AM Nov 29, 2021Observed: 7.72 ft at 6:00AM Nov 29, 2021Observed: 7.79 ft at 6:30AM Nov 29, 2021Observed: 7.7 ft at 7:00AM Nov 29, 2021Observed: 7.42 ft at 7:30AM Nov 29, 2021Observed: 6.92 ft at 8:00AM Nov 29, 2021Observed: 6.28 ft at 8:30AM Nov 29, 2021Observed: 5.46 ft at 9:00AM Nov 29, 2021Observed: 4.6 ft at 9:30AM Nov 29, 2021Observed: 3.74 ft at 10:00AM Nov 29, 2021Observed: 2.93 ft at 10:30AM Nov 29, 2021Observed: 2.29 ft at 11:00AM Nov 29, 2021Observed: 1.74 ft at 11:30AM Nov 29, 2021Observed: 1.35 ft at 12:00PM Nov 29, 2021Observed: 1.13 ft at 12:30PM Nov 29, 2021Observed: 1.05 ft at 1:00PM Nov 29, 2021Observed: 1.11 ft at 1:30PM Nov 29, 2021Observed: 1.3 ft at 2:00PM Nov 29, 2021Observed: 1.81 ft at 2:30PM Nov 29, 2021Observed: 2.51 ft at 3:00PM Nov 29, 2021Observed: 3.34 ft at 3:30PM Nov 29, 2021Observed: 4.31 ft at 4:00PM Nov 29, 2021Observed: 5.29 ft at 4:30PM Nov 29, 2021Observed: 6.13 ft at 5:00PM Nov 29, 2021Observed: 6.74 ft at 5:30PM Nov 29, 2021Observed: 7.13 ft at 6:00PM Nov 29, 2021Observed: 7.31 ft at 6:30PM Nov 29, 2021Observed: 7.3 ft at 7:00PM Nov 29, 2021Observed: 7.09 ft at 7:30PM Nov 29, 2021Observed: 6.81 ft at 8:00PM Nov 29, 2021Observed: 6.34 ft at 8:30PM Nov 29, 2021Observed: 5.7 ft at 9:00PM Nov 29, 2021Observed: 4.89 ft at 9:30PM Nov 29, 2021Observed: 4.03 ft at 10:00PM Nov 29, 2021Observed: 3.19 ft at 10:30PM Nov 29, 2021Observed: 2.34 ft at 11:00PM Nov 29, 2021Observed: 1.68 ft at 11:30PM Nov 29, 2021Observed: 1.18 ft at 12:00AM Nov 30, 2021Observed: 0.84 ft at 12:30AM Nov 30, 2021Observed: 0.69 ft at 1:00AM Nov 30, 2021Observed: 0.74 ft at 1:30AM Nov 30, 2021Observed: 0.96 ft at 2:00AM Nov 30, 2021Observed: 1.41 ft at 2:30AM Nov 30, 2021Observed: 2.08 ft at 3:00AM Nov 30, 2021Observed: 2.93 ft at 3:30AM Nov 30, 2021Observed: 3.9 ft at 4:00AM Nov 30, 2021Observed: 4.92 ft at 4:30AM Nov 30, 2021Observed: 5.9 ft at 5:00AM Nov 30, 2021Observed: 6.71 ft at 5:30AM Nov 30, 2021Observed: 7.38 ft at 6:00AM Nov 30, 2021Observed: 7.79 ft at 6:30AM Nov 30, 2021Highest Observation: 7.99 ft at 7:00AM Nov 30, 2021Observed: 7.95 ft at 7:30AM Nov 30, 2021Observed: 7.78 ft at 8:00AM Nov 30, 2021Observed: 7.42 ft at 8:30AM Nov 30, 2021Observed: 6.87 ft at 9:00AM Nov 30, 2021Observed: 6.08 ft at 9:30AM Nov 30, 2021Observed: 5.12 ft at 10:00AM Nov 30, 2021Observed: 4.12 ft at 10:30AM Nov 30, 2021Observed: 3.17 ft at 11:00AM Nov 30, 2021Observed: 2.26 ft at 11:30AM Nov 30, 2021Observed: 1.5 ft at 12:00PM Nov 30, 2021Observed: 0.92 ft at 12:30PM Nov 30, 2021Observed: 0.44 ft at 1:00PM Nov 30, 2021Observed: 0.2 ft at 1:30PM Nov 30, 2021Observed: 0.15 ft at 2:00PM Nov 30, 2021Observed: 0.25 ft at 2:30PM Nov 30, 2021Observed: 0.6 ft at 3:00PM Nov 30, 2021Observed: 1.27 ft at 3:30PM Nov 30, 2021Observed: 2.06 ft at 4:00PM Nov 30, 2021Observed: 3 ft at 4:30PM Nov 30, 2021Observed: 4.02 ft at 5:00PM Nov 30, 2021Observed: 4.97 ft at 5:30PM Nov 30, 2021Observed: 5.82 ft at 6:00PM Nov 30, 2021Observed: 6.42 ft at 6:30PM Nov 30, 2021Observed: 6.8 ft at 7:00PM Nov 30, 2021Observed: 7 ft at 7:30PM Nov 30, 2021Observed: 7.01 ft at 8:00PM Nov 30, 2021USGS--Water Resources of the United StatesSTDC3(plotting HMIRG) Graph Created (8:16PM Nov 30, 2021)ObservedLatest observed value: 7.01 ft at 8:00 PM EST 30-Nov-2021. Flood Stage is 9.4 ft
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Tabular Data (UTC)
Tabular Data (EST)
XML Data
RSS Files
Datum: Not Available
NOTE: Forecasts are not available for the Long Island Sound at Stamford (IN MLLW). Only observed stages are available for this point.

Vertical Datum references a tidal datum (MLLW). For more information click on USGS link below.

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Flood Categories (in feet)
Major Flood Stage: 12.4
Moderate Flood Stage: 11
Flood Stage: 9.4
Action Stage: 0
Low Stage (in feet): -9999

Historic Crests
Currently none available.

Recent Crests
Currently none available.

Low Water Records
Currently none available.
Zoom Level:16
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Gauge LocationGauge Map Marker
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.
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Latitude: 41.037222° N, Longitude: 73.534722° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 9.4 ft Interpreting hydrographs and NWS watch, warnings, and forecasts, and inundation maps
Vertical Datum Elevation
(gauge height = 0)
(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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