Long Island Sound at New Haven (IN MLLW)

Last updated: Jul 6, 2025, 4:38 AM UTC
No watches, warnings or advisories are in effect for this area.

Flood Impacts 🅘

  • 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.

Gauge Info

Coordinates 41.2833, -72.9083
RFC NERFC
State CT
WFO OKX
County New Haven
Data Provider(s)
USGS 8465705

Gauge Location

Recent Crests

1. 8.04 ft on 10-29-2012
2. 9.58 ft on 08-31-1954
3. 7.58 ft on 11-25-1950
4. 7.08 ft on 09-14-1944
5. 10.58 ft on 09-21-1938

Historic Crests

1. 10.58 ft on 09-21-1938
2. 9.58 ft on 08-31-1954
3. 8.04 ft on 10-29-2012
4. 7.58 ft on 11-25-1950
5. 7.08 ft on 09-14-1944

Vertical Datum Table

type MLLW*
major Flooding 10.60 ft
moderate Flooding 9.30 ft
minor Flooding 8.70 ft
action N/A
Latest Value 3.23 ft
Gauge Zero 0.00 ft

Gauge Photos

No Images Found

Probability Information

No Images Available

Unique Local Info

Potential Tide Levels - Used to

Potential Tide Levels
Used to Estimate the Chance of Flooding and the Range of Possible Tide Levels
GFS Based Guidance (ETSS) GEFS Based Guidance (P-ETSS) NAEFS Based Guidance (P-ETSS)
GFS (ETSS) GEFS (P-ETSS) NAEFS (P-ETSS)

Note: Use the official hydrograph at the top of this web page for tide levels within the next 72 hours.

The Potential Tide Level graphics above are from an EXPERIMENTAL web site. It is supported on an 8x5 basis, and has no guarantee of availability in the future.  Please see information HERE to understand the strengths and weakness of the Potential Tide Level graphics.  Click individual graphics to enlarge.

Collaborative Agencies

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.

WFO Information

Weather Forecast Office
Upton
175 Brookhaven Ave. Bldg. NWS-1
Upton, NY 11973
Official Homepage