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Hydrograph River at a Glance Download
Long Island Sound above Lattingtown Tide Height (ft)Observed: 4.33 ft at 5:36PM May 09, 2024Observed: 4.21 ft at 5:42PM May 09, 2024Observed: 4.1 ft at 5:48PM May 09, 2024Observed: 3.99 ft at 5:54PM May 09, 2024Observed: 3.89 ft at 6:00PM May 09, 2024Observed: 3.8 ft at 6:06PM May 09, 2024Observed: 3.72 ft at 6:12PM May 09, 2024Observed: 3.64 ft at 6:18PM May 09, 2024Observed: 3.58 ft at 6:24PM May 09, 2024Observed: 3.51 ft at 6:30PM May 09, 2024Observed: 3.45 ft at 6:36PM May 09, 2024Observed: 3.4 ft at 6:42PM May 09, 2024Observed: 3.35 ft at 6:48PM May 09, 2024Observed: 3.31 ft at 6:54PM May 09, 2024Observed: 3.27 ft at 7:00PM May 09, 2024Observed: 3.23 ft at 7:06PM May 09, 2024Observed: 3.2 ft at 7:12PM May 09, 2024Observed: 3.16 ft at 7:13PM May 09, 2024Observed: 3.16 ft at 7:18PM May 09, 2024Observed: 3.13 ft at 7:19PM May 09, 2024Observed: 3.13 ft at 7:24PM May 09, 2024Observed: 3.11 ft at 7:30PM May 09, 2024Observed: 3.08 ft at 7:36PM May 09, 2024Observed: 3.06 ft at 7:42PM May 09, 2024Observed: 3.04 ft at 7:48PM May 09, 2024Observed: 3.02 ft at 7:54PM May 09, 2024Observed: 3 ft at 8:00PM May 09, 2024Observed: 2.98 ft at 8:06PM May 09, 2024Observed: 2.97 ft at 8:12PM May 09, 2024Observed: 2.95 ft at 8:18PM May 09, 2024Observed: 2.94 ft at 8:24PM May 09, 2024Observed: 2.93 ft at 8:30PM May 09, 2024Observed: 2.92 ft at 8:36PM May 09, 2024Observed: 2.91 ft at 8:42PM May 09, 2024Observed: 2.9 ft at 8:48PM May 09, 2024Observed: 2.89 ft at 8:54PM May 09, 2024Observed: 2.88 ft at 9:00PM May 09, 2024Observed: 2.87 ft at 9:06PM May 09, 2024Observed: 2.87 ft at 9:12PM May 09, 2024Observed: 2.86 ft at 9:18PM May 09, 2024Observed: 2.85 ft at 9:24PM May 09, 2024Observed: 2.85 ft at 9:30PM May 09, 2024Observed: 2.86 ft at 9:36PM May 09, 2024Observed: 2.9 ft at 9:42PM May 09, 2024Observed: 2.97 ft at 9:48PM May 09, 2024Observed: 3.1 ft at 9:54PM May 09, 2024Observed: 3.35 ft at 10:00PM May 09, 2024Observed: 3.67 ft at 10:06PM May 09, 2024Observed: 3.99 ft at 10:12PM May 09, 2024Observed: 4.29 ft at 10:18PM May 09, 2024Observed: 4.57 ft at 10:24PM May 09, 2024Observed: 4.84 ft at 10:30PM May 09, 2024Observed: 5.09 ft at 10:36PM May 09, 2024Observed: 5.31 ft at 10:42PM May 09, 2024Observed: 5.52 ft at 10:48PM May 09, 2024Observed: 5.72 ft at 10:54PM May 09, 2024Observed: 5.93 ft at 11:00PM May 09, 2024Observed: 6.15 ft at 11:06PM May 09, 2024Observed: 6.36 ft at 11:12PM May 09, 2024Observed: 6.58 ft at 11:18PM May 09, 2024Observed: 6.81 ft at 11:24PM May 09, 2024Observed: 7.03 ft at 11:30PM May 09, 2024Observed: 7.25 ft at 11:36PM May 09, 2024Observed: 7.47 ft at 11:42PM May 09, 2024Observed: 7.67 ft at 11:48PM May 09, 2024Observed: 7.85 ft at 11:54PM May 09, 2024Observed: 8.01 ft at 12:00AM May 10, 2024Observed: 8.18 ft at 12:06AM May 10, 2024Observed: 8.35 ft at 12:12AM May 10, 2024Observed: 8.53 ft at 12:18AM May 10, 2024Observed: 8.7 ft at 12:24AM May 10, 2024Observed: 8.85 ft at 12:30AM May 10, 2024Observed: 9.02 ft at 12:36AM May 10, 2024Observed: 9.18 ft at 12:42AM May 10, 2024Observed: 9.33 ft at 12:48AM May 10, 2024Observed: 9.47 ft at 12:54AM May 10, 2024Observed: 9.61 ft at 1:00AM May 10, 2024Observed: 9.73 ft at 1:06AM May 10, 2024Observed: 9.84 ft at 1:12AM May 10, 2024Observed: 9.92 ft at 1:13AM May 10, 2024Observed: 9.92 ft at 1:18AM May 10, 2024Observed: 10 ft at 1:19AM May 10, 2024Observed: 10 ft at 1:20AM May 10, 2024Observed: 10 ft at 1:21AM May 10, 2024Observed: 10 ft at 1:24AM May 10, 2024Observed: 10.06 ft at 1:25AM May 10, 2024Observed: 10.06 ft at 1:26AM May 10, 2024Observed: 10.06 ft at 1:27AM May 10, 2024Observed: 10.06 ft at 1:30AM May 10, 2024Observed: 10.1 ft at 1:31AM May 10, 2024Observed: 10.1 ft at 1:32AM May 10, 2024Observed: 10.1 ft at 1:36AM May 10, 2024Highest Observation: 10.12 ft at 1:37AM May 10, 2024Highest Observation: 10.12 ft at 1:38AM May 10, 2024Highest Observation: 10.12 ft at 1:42AM May 10, 2024Observed: 10.11 ft at 1:43AM May 10, 2024Observed: 10.11 ft at 1:48AM May 10, 2024Observed: 10.08 ft at 1:49AM May 10, 2024Observed: 10.08 ft at 1:50AM May 10, 2024Observed: 10.08 ft at 1:54AM May 10, 2024Observed: 10.04 ft at 1:56AM May 10, 2024Observed: 10.04 ft at 2:00AM May 10, 2024Observed: 9.99 ft at 2:06AM May 10, 2024Observed: 9.94 ft at 2:12AM May 10, 2024Observed: 9.88 ft at 2:18AM May 10, 2024Observed: 9.82 ft at 2:24AM May 10, 2024Observed: 9.76 ft at 2:30AM May 10, 2024Observed: 9.69 ft at 2:36AM May 10, 2024Observed: 9.61 ft at 2:42AM May 10, 2024Observed: 9.53 ft at 2:48AM May 10, 2024Observed: 9.44 ft at 2:54AM May 10, 2024Observed: 9.35 ft at 3:00AM May 10, 2024Observed: 9.25 ft at 3:06AM May 10, 2024Observed: 9.15 ft at 3:12AM May 10, 2024Observed: 9.04 ft at 3:18AM May 10, 2024Observed: 8.93 ft at 3:24AM May 10, 2024Observed: 8.81 ft at 3:30AM May 10, 2024Observed: 8.69 ft at 3:36AM May 10, 2024Observed: 8.56 ft at 3:42AM May 10, 2024Observed: 8.43 ft at 3:48AM May 10, 2024Observed: 8.3 ft at 3:54AM May 10, 2024Observed: 8.17 ft at 4:00AM May 10, 2024Observed: 8.02 ft at 4:06AM May 10, 2024Observed: 7.88 ft at 4:12AM May 10, 2024Observed: 7.74 ft at 4:18AM May 10, 2024Observed: 7.59 ft at 4:24AM May 10, 2024Observed: 7.44 ft at 4:30AM May 10, 2024Observed: 7.28 ft at 4:36AM May 10, 2024Observed: 7.12 ft at 4:42AM May 10, 2024Observed: 6.96 ft at 4:48AM May 10, 2024Observed: 6.8 ft at 4:54AM May 10, 2024Observed: 6.64 ft at 5:00AM May 10, 2024Observed: 6.48 ft at 5:06AM May 10, 2024Observed: 6.33 ft at 5:12AM May 10, 2024Observed: 6.18 ft at 5:18AM May 10, 2024Observed: 6.03 ft at 5:24AM May 10, 2024Observed: 5.89 ft at 5:30AM May 10, 2024Observed: 5.74 ft at 5:36AM May 10, 2024Observed: 5.6 ft at 5:42AM May 10, 2024Observed: 5.46 ft at 5:48AM May 10, 2024Observed: 5.32 ft at 5:54AM May 10, 2024Observed: 5.18 ft at 6:00AM May 10, 2024Observed: 5.03 ft at 6:06AM May 10, 2024Observed: 4.88 ft at 6:12AM May 10, 2024Observed: 4.74 ft at 6:18AM May 10, 2024Observed: 4.59 ft at 6:24AM May 10, 2024Observed: 4.45 ft at 6:30AM May 10, 2024Observed: 4.32 ft at 6:36AM May 10, 2024Observed: 4.2 ft at 6:42AM May 10, 2024Observed: 4.09 ft at 6:48AM May 10, 2024Observed: 3.98 ft at 6:54AM May 10, 2024Observed: 3.88 ft at 7:00AM May 10, 2024Observed: 3.79 ft at 7:06AM May 10, 2024Observed: 3.71 ft at 7:12AM May 10, 2024Observed: 3.63 ft at 7:18AM May 10, 2024Observed: 3.57 ft at 7:24AM May 10, 2024Observed: 3.5 ft at 7:30AM May 10, 2024Observed: 3.45 ft at 7:36AM May 10, 2024Observed: 3.39 ft at 7:42AM May 10, 2024Observed: 3.34 ft at 7:48AM May 10, 2024Observed: 3.3 ft at 7:50AM May 10, 2024Observed: 3.3 ft at 7:54AM May 10, 2024Observed: 3.25 ft at 7:56AM May 10, 2024Observed: 3.25 ft at 8:00AM May 10, 2024Observed: 3.22 ft at 8:06AM May 10, 2024Observed: 3.18 ft at 8:12AM May 10, 2024Observed: 3.15 ft at 8:18AM May 10, 2024Observed: 3.12 ft at 8:24AM May 10, 2024Observed: 3.1 ft at 8:30AM May 10, 2024Observed: 3.07 ft at 8:36AM May 10, 2024Observed: 3.05 ft at 8:42AM May 10, 2024Observed: 3.03 ft at 8:48AM May 10, 2024Observed: 3.01 ft at 8:54AM May 10, 2024Observed: 2.98 ft at 9:00AM May 10, 2024Observed: 2.97 ft at 9:06AM May 10, 2024Observed: 2.95 ft at 9:12AM May 10, 2024Observed: 2.94 ft at 9:18AM May 10, 2024Observed: 2.93 ft at 9:24AM May 10, 2024Observed: 2.91 ft at 9:30AM May 10, 2024Observed: 2.9 ft at 9:36AM May 10, 2024Observed: 2.89 ft at 9:42AM May 10, 2024Observed: 2.88 ft at 9:48AM May 10, 2024Observed: 2.87 ft at 9:54AM May 10, 2024Observed: 2.86 ft at 10:00AM May 10, 2024Observed: 2.86 ft at 10:06AM May 10, 2024Observed: 2.86 ft at 10:12AM May 10, 2024Observed: 2.85 ft at 10:18AM May 10, 2024Observed: 2.85 ft at 10:24AM May 10, 2024Observed: 2.88 ft at 10:30AM May 10, 2024Observed: 2.94 ft at 10:36AM May 10, 2024Observed: 3.06 ft at 10:42AM May 10, 2024Observed: 3.29 ft at 10:48AM May 10, 2024Observed: 3.6 ft at 10:54AM May 10, 2024Observed: 3.92 ft at 11:00AM May 10, 2024Observed: 4.22 ft at 11:06AM May 10, 2024Observed: 4.5 ft at 11:12AM May 10, 2024Observed: 4.77 ft at 11:18AM May 10, 2024Observed: 5.02 ft at 11:24AM May 10, 2024Observed: 5.25 ft at 11:30AM May 10, 2024Observed: 5.46 ft at 11:36AM May 10, 2024Observed: 5.65 ft at 11:42AM May 10, 2024Observed: 5.85 ft at 11:48AM May 10, 2024Observed: 6.05 ft at 11:54AM May 10, 2024Observed: 6.24 ft at 12:00PM May 10, 2024Observed: 6.45 ft at 12:06PM May 10, 2024Observed: 6.65 ft at 12:12PM May 10, 2024Observed: 6.87 ft at 12:18PM May 10, 2024Observed: 7.07 ft at 12:24PM May 10, 2024Observed: 7.27 ft at 12:30PM May 10, 2024Observed: 7.47 ft at 12:36PM May 10, 2024Observed: 7.64 ft at 12:42PM May 10, 2024Observed: 7.8 ft at 12:48PM May 10, 2024Observed: 7.96 ft at 12:54PM May 10, 2024Observed: 8.1 ft at 1:00PM May 10, 2024Observed: 8.25 ft at 1:06PM May 10, 2024Observed: 8.38 ft at 1:12PM May 10, 2024Observed: 8.51 ft at 1:18PM May 10, 2024Observed: 8.64 ft at 1:24PM May 10, 2024Observed: 8.75 ft at 1:30PM May 10, 2024Observed: 8.87 ft at 1:36PM May 10, 2024Observed: 8.97 ft at 1:42PM May 10, 2024Observed: 9.06 ft at 1:48PM May 10, 2024Observed: 9.14 ft at 1:49PM May 10, 2024Observed: 9.14 ft at 1:54PM May 10, 2024Observed: 9.21 ft at 1:55PM May 10, 2024Observed: 9.21 ft at 2:00PM May 10, 2024Observed: 9.26 ft at 2:06PM May 10, 2024Observed: 9.29 ft at 2:12PM May 10, 2024Observed: 9.31 ft at 2:18PM May 10, 2024Observed: 9.3 ft at 2:24PM May 10, 2024Observed: 9.27 ft at 2:30PM May 10, 2024Observed: 9.24 ft at 2:36PM May 10, 2024Observed: 9.19 ft at 2:42PM May 10, 2024Observed: 9.14 ft at 2:48PM May 10, 2024Observed: 9.09 ft at 2:54PM May 10, 2024Observed: 9.03 ft at 3:00PM May 10, 2024Observed: 8.97 ft at 3:06PM May 10, 2024Observed: 8.9 ft at 3:12PM May 10, 2024Observed: 8.83 ft at 3:18PM May 10, 2024Observed: 8.75 ft at 3:24PM May 10, 2024Observed: 8.67 ft at 3:30PM May 10, 2024Observed: 8.58 ft at 3:36PM May 10, 2024Observed: 8.48 ft at 3:42PM May 10, 2024Observed: 8.39 ft at 3:48PM May 10, 2024Observed: 8.28 ft at 3:54PM May 10, 2024Observed: 8.18 ft at 4:00PM May 10, 2024Observed: 8.07 ft at 4:06PM May 10, 2024Observed: 7.95 ft at 4:12PM May 10, 2024Observed: 7.83 ft at 4:18PM May 10, 2024Observed: 7.71 ft at 4:24PM May 10, 2024Observed: 7.58 ft at 4:30PM May 10, 2024Observed: 7.44 ft at 4:36PM May 10, 2024Observed: 7.29 ft at 4:42PM May 10, 2024USGS--Water Resources of the United StatesLATN6(plotting HMIRG) Graph Created (5:31PM May 10, 2024)ObservedLatest observed value: 7.29 ft at 4:42 PM EDT 10-May-2024. 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:
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Hydrologic Resources Additional Resources
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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
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Upton Weather Forecast Office
175 Brookhaven Ave. Bldg. NWS-1
Upton, NY 11973
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