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Hydrograph River at a Glance Download
Long Island Sound above Lattingtown Tide Height (ft)Observed: 2.82 ft at 6:18AM Mar 20, 2023Observed: 2.82 ft at 6:24AM Mar 20, 2023Observed: 2.82 ft at 6:30AM Mar 20, 2023Observed: 2.82 ft at 6:36AM Mar 20, 2023Observed: 2.82 ft at 6:42AM Mar 20, 2023Observed: 2.81 ft at 6:48AM Mar 20, 2023Observed: 2.81 ft at 6:54AM Mar 20, 2023Observed: 2.81 ft at 7:00AM Mar 20, 2023Observed: 2.81 ft at 7:06AM Mar 20, 2023Observed: 2.81 ft at 7:12AM Mar 20, 2023Observed: 2.8 ft at 7:18AM Mar 20, 2023Observed: 2.8 ft at 7:24AM Mar 20, 2023Observed: 2.8 ft at 7:30AM Mar 20, 2023Observed: 2.8 ft at 7:36AM Mar 20, 2023Observed: 2.8 ft at 7:42AM Mar 20, 2023Observed: 2.8 ft at 7:48AM Mar 20, 2023Observed: 2.79 ft at 7:54AM Mar 20, 2023Observed: 2.79 ft at 8:00AM Mar 20, 2023Observed: 2.8 ft at 8:06AM Mar 20, 2023Observed: 2.86 ft at 8:12AM Mar 20, 2023Observed: 3.06 ft at 8:18AM Mar 20, 2023Observed: 3.42 ft at 8:24AM Mar 20, 2023Observed: 3.8 ft at 8:30AM Mar 20, 2023Observed: 4.13 ft at 8:36AM Mar 20, 2023Observed: 4.41 ft at 8:42AM Mar 20, 2023Observed: 4.67 ft at 8:48AM Mar 20, 2023Observed: 4.91 ft at 8:54AM Mar 20, 2023Observed: 5.14 ft at 9:00AM Mar 20, 2023Observed: 5.34 ft at 9:06AM Mar 20, 2023Observed: 5.53 ft at 9:12AM Mar 20, 2023Observed: 5.72 ft at 9:18AM Mar 20, 2023Observed: 5.9 ft at 9:24AM Mar 20, 2023Observed: 6.07 ft at 9:30AM Mar 20, 2023Observed: 6.25 ft at 9:36AM Mar 20, 2023Observed: 6.43 ft at 9:42AM Mar 20, 2023Observed: 6.6 ft at 9:48AM Mar 20, 2023Observed: 6.77 ft at 9:54AM Mar 20, 2023Observed: 6.93 ft at 10:00AM Mar 20, 2023Observed: 7.09 ft at 10:06AM Mar 20, 2023Observed: 7.23 ft at 10:12AM Mar 20, 2023Observed: 7.37 ft at 10:18AM Mar 20, 2023Observed: 7.5 ft at 10:24AM Mar 20, 2023Observed: 7.62 ft at 10:30AM Mar 20, 2023Observed: 7.72 ft at 10:36AM Mar 20, 2023Observed: 7.81 ft at 10:42AM Mar 20, 2023Observed: 7.89 ft at 10:48AM Mar 20, 2023Observed: 7.97 ft at 10:54AM Mar 20, 2023Observed: 8.03 ft at 11:00AM Mar 20, 2023Observed: 8.08 ft at 11:06AM Mar 20, 2023Observed: 8.13 ft at 11:12AM Mar 20, 2023Observed: 8.16 ft at 11:13AM Mar 20, 2023Observed: 8.16 ft at 11:18AM Mar 20, 2023Highest Observation: 8.17 ft at 11:19AM Mar 20, 2023Highest Observation: 8.17 ft at 11:24AM Mar 20, 2023Highest Observation: 8.17 ft at 11:30AM Mar 20, 2023Observed: 8.16 ft at 11:36AM Mar 20, 2023Observed: 8.13 ft at 11:42AM Mar 20, 2023Observed: 8.09 ft at 11:48AM Mar 20, 2023Observed: 8.06 ft at 11:54AM Mar 20, 2023Observed: 8.01 ft at 12:00PM Mar 20, 2023Observed: 7.97 ft at 12:06PM Mar 20, 2023Observed: 7.92 ft at 12:12PM Mar 20, 2023Observed: 7.87 ft at 12:18PM Mar 20, 2023Observed: 7.81 ft at 12:24PM Mar 20, 2023Observed: 7.74 ft at 12:30PM Mar 20, 2023Observed: 7.66 ft at 12:36PM Mar 20, 2023Observed: 7.58 ft at 12:42PM Mar 20, 2023Observed: 7.49 ft at 12:48PM Mar 20, 2023Observed: 7.39 ft at 12:54PM Mar 20, 2023Observed: 7.28 ft at 1:00PM Mar 20, 2023Observed: 7.17 ft at 1:06PM Mar 20, 2023Observed: 7.05 ft at 1:12PM Mar 20, 2023Observed: 6.93 ft at 1:18PM Mar 20, 2023Observed: 6.8 ft at 1:24PM Mar 20, 2023Observed: 6.67 ft at 1:30PM Mar 20, 2023Observed: 6.54 ft at 1:36PM Mar 20, 2023Observed: 6.4 ft at 1:42PM Mar 20, 2023Observed: 6.27 ft at 1:48PM Mar 20, 2023Observed: 6.13 ft at 1:54PM Mar 20, 2023Observed: 5.99 ft at 2:00PM Mar 20, 2023Observed: 5.85 ft at 2:06PM Mar 20, 2023Observed: 5.71 ft at 2:12PM Mar 20, 2023Observed: 5.57 ft at 2:18PM Mar 20, 2023Observed: 5.44 ft at 2:24PM Mar 20, 2023Observed: 5.29 ft at 2:30PM Mar 20, 2023Observed: 5.14 ft at 2:36PM Mar 20, 2023Observed: 5 ft at 2:42PM Mar 20, 2023Observed: 4.85 ft at 2:48PM Mar 20, 2023Observed: 4.7 ft at 2:54PM Mar 20, 2023Observed: 4.55 ft at 3:00PM Mar 20, 2023Observed: 4.42 ft at 3:06PM Mar 20, 2023Observed: 4.28 ft at 3:12PM Mar 20, 2023Observed: 4.16 ft at 3:18PM Mar 20, 2023Observed: 4.05 ft at 3:24PM Mar 20, 2023Observed: 3.94 ft at 3:30PM Mar 20, 2023Observed: 3.84 ft at 3:36PM Mar 20, 2023Observed: 3.75 ft at 3:42PM Mar 20, 2023Observed: 3.66 ft at 3:48PM Mar 20, 2023Observed: 3.59 ft at 3:54PM Mar 20, 2023Observed: 3.52 ft at 4:00PM Mar 20, 2023Observed: 3.45 ft at 4:06PM Mar 20, 2023Observed: 3.39 ft at 4:12PM Mar 20, 2023Observed: 3.34 ft at 4:18PM Mar 20, 2023Observed: 3.28 ft at 4:24PM Mar 20, 2023Observed: 3.24 ft at 4:30PM Mar 20, 2023Observed: 3.2 ft at 4:36PM Mar 20, 2023Observed: 3.17 ft at 4:42PM Mar 20, 2023Observed: 3.12 ft at 4:48PM Mar 20, 2023Observed: 3.09 ft at 4:54PM Mar 20, 2023Observed: 3.06 ft at 5:00PM Mar 20, 2023Observed: 3.03 ft at 5:06PM Mar 20, 2023Observed: 3.01 ft at 5:12PM Mar 20, 2023Observed: 2.98 ft at 5:13PM Mar 20, 2023Observed: 2.98 ft at 5:18PM Mar 20, 2023Observed: 2.96 ft at 5:19PM Mar 20, 2023Observed: 2.96 ft at 5:24PM Mar 20, 2023Observed: 2.94 ft at 5:30PM Mar 20, 2023Observed: 2.93 ft at 5:36PM Mar 20, 2023Observed: 2.91 ft at 5:42PM Mar 20, 2023Observed: 2.9 ft at 5:48PM Mar 20, 2023Observed: 2.89 ft at 5:54PM Mar 20, 2023Observed: 2.88 ft at 6:00PM Mar 20, 2023Observed: 2.87 ft at 6:06PM Mar 20, 2023Observed: 2.86 ft at 6:12PM Mar 20, 2023Observed: 2.86 ft at 6:18PM Mar 20, 2023Observed: 2.85 ft at 6:24PM Mar 20, 2023Observed: 2.84 ft at 6:30PM Mar 20, 2023Observed: 2.84 ft at 6:36PM Mar 20, 2023Observed: 2.84 ft at 6:42PM Mar 20, 2023Observed: 2.83 ft at 6:48PM Mar 20, 2023Observed: 2.83 ft at 6:54PM Mar 20, 2023Observed: 2.82 ft at 7:00PM Mar 20, 2023Observed: 2.82 ft at 7:06PM Mar 20, 2023Observed: 2.82 ft at 7:12PM Mar 20, 2023Observed: 2.81 ft at 7:18PM Mar 20, 2023Observed: 2.81 ft at 7:24PM Mar 20, 2023Observed: 2.81 ft at 7:30PM Mar 20, 2023Observed: 2.81 ft at 7:36PM Mar 20, 2023Observed: 2.81 ft at 7:42PM Mar 20, 2023Observed: 2.8 ft at 7:48PM Mar 20, 2023Observed: 2.8 ft at 7:54PM Mar 20, 2023Observed: 2.8 ft at 8:00PM Mar 20, 2023Observed: 2.8 ft at 8:06PM Mar 20, 2023Observed: 2.8 ft at 8:12PM Mar 20, 2023Observed: 2.8 ft at 8:18PM Mar 20, 2023Observed: 2.8 ft at 8:24PM Mar 20, 2023Observed: 2.8 ft at 8:30PM Mar 20, 2023Observed: 2.81 ft at 8:36PM Mar 20, 2023Observed: 2.88 ft at 8:42PM Mar 20, 2023Observed: 3.1 ft at 8:48PM Mar 20, 2023Observed: 3.51 ft at 8:54PM Mar 20, 2023Observed: 3.91 ft at 9:00PM Mar 20, 2023Observed: 4.25 ft at 9:06PM Mar 20, 2023Observed: 4.53 ft at 9:12PM Mar 20, 2023Observed: 4.8 ft at 9:18PM Mar 20, 2023Observed: 5.05 ft at 9:24PM Mar 20, 2023Observed: 5.27 ft at 9:30PM Mar 20, 2023Observed: 5.48 ft at 9:36PM Mar 20, 2023Observed: 5.68 ft at 9:42PM Mar 20, 2023Observed: 5.87 ft at 9:48PM Mar 20, 2023Observed: 6.05 ft at 9:54PM Mar 20, 2023Observed: 6.24 ft at 10:00PM Mar 20, 2023Observed: 6.43 ft at 10:06PM Mar 20, 2023Observed: 6.62 ft at 10:12PM Mar 20, 2023Observed: 6.8 ft at 10:18PM Mar 20, 2023Observed: 6.97 ft at 10:24PM Mar 20, 2023Observed: 7.13 ft at 10:30PM Mar 20, 2023Observed: 7.29 ft at 10:36PM Mar 20, 2023Observed: 7.43 ft at 10:42PM Mar 20, 2023Observed: 7.56 ft at 10:48PM Mar 20, 2023Observed: 7.67 ft at 10:54PM Mar 20, 2023Observed: 7.77 ft at 11:00PM Mar 20, 2023Observed: 7.86 ft at 11:06PM Mar 20, 2023Observed: 7.93 ft at 11:12PM Mar 20, 2023Observed: 8 ft at 11:14PM Mar 20, 2023Observed: 8 ft at 11:18PM Mar 20, 2023Observed: 8.06 ft at 11:20PM Mar 20, 2023Observed: 8.06 ft at 11:24PM Mar 20, 2023Observed: 8.11 ft at 11:30PM Mar 20, 2023Observed: 8.14 ft at 11:36PM Mar 20, 2023Observed: 8.15 ft at 11:42PM Mar 20, 2023Observed: 8.15 ft at 11:48PM Mar 20, 2023Observed: 8.13 ft at 11:54PM Mar 20, 2023Observed: 8.09 ft at 12:00AM Mar 21, 2023Observed: 8.05 ft at 12:06AM Mar 21, 2023Observed: 8 ft at 12:12AM Mar 21, 2023Observed: 7.96 ft at 12:18AM Mar 21, 2023Observed: 7.91 ft at 12:24AM Mar 21, 2023Observed: 7.86 ft at 12:30AM Mar 21, 2023Observed: 7.81 ft at 12:36AM Mar 21, 2023Observed: 7.75 ft at 12:42AM Mar 21, 2023Observed: 7.69 ft at 12:48AM Mar 21, 2023Observed: 7.61 ft at 12:54AM Mar 21, 2023Observed: 7.53 ft at 1:00AM Mar 21, 2023Observed: 7.44 ft at 1:06AM Mar 21, 2023Observed: 7.34 ft at 1:12AM Mar 21, 2023Observed: 7.24 ft at 1:18AM Mar 21, 2023Observed: 7.13 ft at 1:24AM Mar 21, 2023Observed: 7.01 ft at 1:30AM Mar 21, 2023Observed: 6.89 ft at 1:36AM Mar 21, 2023Observed: 6.77 ft at 1:42AM Mar 21, 2023Observed: 6.64 ft at 1:48AM Mar 21, 2023Observed: 6.51 ft at 1:54AM Mar 21, 2023Observed: 6.38 ft at 2:00AM Mar 21, 2023Observed: 6.24 ft at 2:06AM Mar 21, 2023Observed: 6.11 ft at 2:12AM Mar 21, 2023Observed: 5.97 ft at 2:18AM Mar 21, 2023Observed: 5.83 ft at 2:24AM Mar 21, 2023Observed: 5.7 ft at 2:30AM Mar 21, 2023Observed: 5.56 ft at 2:36AM Mar 21, 2023Observed: 5.42 ft at 2:42AM Mar 21, 2023Observed: 5.28 ft at 2:48AM Mar 21, 2023Observed: 5.13 ft at 2:54AM Mar 21, 2023Observed: 4.98 ft at 3:00AM Mar 21, 2023Observed: 4.83 ft at 3:06AM Mar 21, 2023Observed: 4.68 ft at 3:12AM Mar 21, 2023Observed: 4.53 ft at 3:18AM Mar 21, 2023Observed: 4.39 ft at 3:24AM Mar 21, 2023Observed: 4.25 ft at 3:30AM Mar 21, 2023Observed: 4.13 ft at 3:36AM Mar 21, 2023Observed: 4.01 ft at 3:42AM Mar 21, 2023Observed: 3.9 ft at 3:48AM Mar 21, 2023Observed: 3.8 ft at 3:54AM Mar 21, 2023Observed: 3.71 ft at 4:00AM Mar 21, 2023Observed: 3.63 ft at 4:06AM Mar 21, 2023Observed: 3.55 ft at 4:12AM Mar 21, 2023Observed: 3.48 ft at 4:18AM Mar 21, 2023Observed: 3.41 ft at 4:24AM Mar 21, 2023Observed: 3.35 ft at 4:30AM Mar 21, 2023Observed: 3.3 ft at 4:36AM Mar 21, 2023Observed: 3.25 ft at 4:42AM Mar 21, 2023Observed: 3.2 ft at 4:48AM Mar 21, 2023Observed: 3.16 ft at 4:54AM Mar 21, 2023Observed: 3.12 ft at 5:00AM Mar 21, 2023Observed: 3.09 ft at 5:06AM Mar 21, 2023Observed: 3.05 ft at 5:12AM Mar 21, 2023Observed: 3.02 ft at 5:13AM Mar 21, 2023Observed: 3.02 ft at 5:18AM Mar 21, 2023Observed: 3 ft at 5:19AM Mar 21, 2023Observed: 3 ft at 5:24AM Mar 21, 2023Observed: 2.97 ft at 5:30AM Mar 21, 2023Observed: 2.95 ft at 5:36AM Mar 21, 2023Observed: 2.93 ft at 5:42AM Mar 21, 2023USGS--Water Resources of the United StatesLATN6(plotting HMIRG) Graph Created (6:16AM Mar 21, 2023)ObservedLatest observed value: 2.93 ft at 5:42 AM EDT 21-Mar-2023. Flood Stage is 10.1 ft
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About this graph
Tabular Data (UTC)
Tabular Data (EDT)
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: Graphical forecasts are not available for the Long Island Sound above Lattingtown. During times of high water, forecast crest information can be found in the text products.

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: 13.1
Moderate Flood Stage: 11.1
Flood Stage: 10.1
Action Stage: 0
Low Stage (in feet): -1.8

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.
About This Location Collapse

Latitude: 40.905000° N, Longitude: 73.593333° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame		 Gauge Height Flood Stage Uses
NWS stage 0 ft 10.1 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:
Resources Collapse
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
Upton Weather Forecast Office
175 Brookhaven Ave. Bldg. NWS-1
Upton, NY 11973
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