Station Name: GREAT SOUTH BAY AT WEST SAYVILLE NY
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 0 feet / 0 meters

Nearest Address:
198 Atlantic Ave
West Sayville, NY 11796
Suffolk County

GPS Coordinates: 40.72105556, -73.09125

Nearby Water Temperatures

Coastal Flood Statement issued October 30 at 3:57AM EDT until October 30 at 8:00PM EDT by NWS Upton NY

Effective: Thu October 30, 2025, 3:57 AM
Expires: Thu October 30, 2025, 8:00 PM

* WHAT...Up to one half foot of inundation above ground level expected in vulnerable areas near the waterfront and shoreline. * WHERE...Northeast Suffolk County. * WHEN...From this afternoon through this evening. * COASTAL FLOOD IMPACTS...Some water on low lying roads and property. * SHORELINE IMPACTS...Breaking waves of 4 to 7 ft along the shoreline will result in beach erosion as well as splashover onto shoreline roads and properties. Minor damage to shorefront structures possible.

Do not drive through flooded roadways.

Coastal Flood Advisory issued October 30 at 3:57AM EDT until October 30 at 9:00PM EDT by NWS Upton NY

Effective: Thu October 30, 2025, 3:57 AM
Expires: Thu October 30, 2025, 9:00 PM

* WHAT...One to locally two feet of inundation above ground level expected in vulnerable areas near the waterfront and shoreline. * WHERE...Southwest Suffolk County. * WHEN...From 2 PM to 9 PM EDT this afternoon and evening. * IMPACTS...Minor flooding in the more vulnerable locations near the waterfront and shoreline. Some roads and low lying properties including parking lots, parks, lawns, and homes and businesses with basements near the waterfront will experience minor flooding. * ADDITIONAL DETAILS...Locally moderate coastal flooding is possible across the western Great South Bay during this evening's high tide. There is also potential of minor coastal flooding during high tide Friday morning.

If travel is required, allow extra time as some roads may be closed. Do not drive around barricades or through water of unknown depth. Take the necessary actions to protect flood-prone property.

Wind Advisory issued October 30 at 2:45PM EDT until November 1 at 12:00AM EDT by NWS Upton NY

Effective: Thu October 30, 2025, 2:45 PM
Expires: Fri October 31, 2025, 4:00 AM

* WHAT...West winds 20 to 25 mph with gusts 40 to 45 mph expected. * WHERE...Southeast New York, northeast New Jersey, and southern Connecticut. * WHEN...From noon Friday to midnight EDT Friday Night. * IMPACTS...Gusty winds will blow around Halloween decorations and other unsecured objects. Tree limbs could be blown down and a few power outages may result.

Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. Secure outdoor objects.

Coastal Flood Advisory issued October 30 at 8:04PM EDT until October 30 at 9:00PM EDT by NWS Upton NY

Effective: Thu October 30, 2025, 8:04 PM
Expires: Fri October 31, 2025, 6:00 AM

* WHAT...For the Coastal Flood Advisory, up to 2 ft of inundation above ground level in vulnerable areas near the waterfront and shoreline. For the Coastal Flood Statement, 1 ft or less of inundation above ground level expected in vulnerable areas near the waterfront and shoreline. * WHERE...Southwest Suffolk County. * WHEN...For the Coastal Flood Advisory, until 9 PM EDT this evening. For the Coastal Flood Statement, from 2 AM EDT Friday through Friday morning. * IMPACTS... * COASTAL FLOOD IMPACTS...Minor to moderate flooding in the more vulnerable locations near the waterfront and shoreline. Several roads and low lying properties including parking lots, parks, lawns, and homes and businesses with basements near the waterfront will experience minor flooding. * SHORELINE IMPACTS...Breaking waves of 5 to 7 ft along the oceanfront will result in beach erosion flooding during the time of high tides with only minor damage possible to dune structures. * ADDITIONAL DETAILS...Another round of minor coastal flooding is likely during high tide early Friday morning.

If travel is required, allow extra time as some roads may be closed. Do not drive around barricades or through water of unknown depth. Take the necessary actions to protect flood-prone property.

Coastal Flood Statement issued October 30 at 8:04PM EDT until October 31 at 8:00AM EDT by NWS Upton NY

Effective: Thu October 30, 2025, 8:04 PM
Expires: Fri October 31, 2025, 6:00 AM

* WHAT...For the first Coastal Flood Statement, less than 1 ft of inundation above ground level in vulnerable areas near the waterfront and shoreline. For the second Coastal Flood Statement, Less than 1 ft of inundation above ground level expected in vulnerable areas near the waterfront and shoreline along the eastern Great South Bay. * WHERE...Southeast Suffolk County. * WHEN...For the first Coastal Flood Statement, until 6 PM EDT this evening. For the second Coastal Flood Statement, from 2 AM EDT Friday through Friday morning. * IMPACTS...Brief minor flooding of the more vulnerable locations near the waterfront and shoreline.

Do not drive through flooded roadways.

Coastal Flood Statement issued October 30 at 8:04PM EDT until October 31 at 8:00AM EDT by NWS Upton NY

Effective: Thu October 30, 2025, 8:04 PM
Expires: Fri October 31, 2025, 6:00 AM

* WHAT...For the Coastal Flood Advisory, up to 2 ft of inundation above ground level in vulnerable areas near the waterfront and shoreline. For the Coastal Flood Statement, 1 ft or less of inundation above ground level expected in vulnerable areas near the waterfront and shoreline. * WHERE...Southwest Suffolk County. * WHEN...For the Coastal Flood Advisory, until 9 PM EDT this evening. For the Coastal Flood Statement, from 2 AM EDT Friday through Friday morning. * IMPACTS... * COASTAL FLOOD IMPACTS...Minor to moderate flooding in the more vulnerable locations near the waterfront and shoreline. Several roads and low lying properties including parking lots, parks, lawns, and homes and businesses with basements near the waterfront will experience minor flooding. * SHORELINE IMPACTS...Breaking waves of 5 to 7 ft along the oceanfront will result in beach erosion flooding during the time of high tides with only minor damage possible to dune structures. * ADDITIONAL DETAILS...Another round of minor coastal flooding is likely during high tide early Friday morning.

If travel is required, allow extra time as some roads may be closed. Do not drive around barricades or through water of unknown depth. Take the necessary actions to protect flood-prone property.

Flood Advisory issued October 30 at 7:39PM EDT until October 30 at 9:45PM EDT by NWS Upton NY

Effective: Thu October 30, 2025, 7:39 PM
Expires: Thu October 30, 2025, 9:45 PM

* WHAT...Minor flooding caused by excessive rainfall is expected. * WHERE...A portion of southeast New York, including the following county, Suffolk. * WHEN...Until 945 PM EDT. * IMPACTS...Minor flooding in low-lying and poor drainage areas. * ADDITIONAL DETAILS... - At 738 PM EDT, Doppler radar indicated heavy rain. Minor flooding is already occurring in the advisory area. Between 0.5 and 1 inch of rain has fallen. - Additional rainfall amounts up to 1 inch are expected over the area. This additional rain will result in minor flooding. - Some locations that will experience flooding include... Riverhead, Southold, Manorville, Wading River, Center Moriches, Mattituck, Southampton, Westhampton, Sag Harbor, Bridgehampton, Plum Island, Gardiners Island, Mastic, Mastic Beach, Calverton, Noyack, Shelter Island, Greenport, Shinnecock Hills and East Hampton. - http://www.weather.gov/safety/flood

Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles.

Coastal Flood Advisory issued October 30 at 3:57AM EDT until October 30 at 8:00PM EDT by NWS Upton NY

Effective: Thu October 30, 2025, 3:57 AM
Expires: Thu October 30, 2025, 8:00 PM

* WHAT...Up to one foot of inundation above ground level expected in vulnerable areas near the waterfront and shoreline. * WHERE...In Connecticut, Southern Fairfield County. In New York, Southern Westchester County. * WHEN...From 4 PM to 8 PM EDT this afternoon and evening. * IMPACTS...Minor flooding in the more vulnerable locations near the waterfront and shoreline. Some roads and low lying properties including parking lots, parks, lawns, and homes and businesses with basements near the waterfront will experience minor flooding.

If travel is required, allow extra time as some roads may be closed. Do not drive around barricades or through water of unknown depth. Take the necessary actions to protect flood-prone property.

Flood Advisory issued October 30 at 6:45PM EDT until October 30 at 8:45PM EDT by NWS Upton NY

Effective: Thu October 30, 2025, 6:45 PM
Expires: Thu October 30, 2025, 8:45 PM

* WHAT...Minor flooding caused by excessive rainfall is expected. * WHERE...A portion of southern Connecticut, including the following counties, Fairfield, Middlesex and New Haven. * WHEN...Until 845 PM EDT. * IMPACTS...Minor flooding in low-lying and poor drainage areas. * ADDITIONAL DETAILS... - At 645 PM EDT, Doppler radar indicated heavy showers. Minor flooding is already occurring in the advisory area. Between 1 and 2 inches of rain have fallen. - Additional rainfall amounts up to 1 inch are expected over the area. This additional rain will result in minor flooding. - Some locations that will experience flooding include... Bridgeport, New Haven, Waterbury, Norwalk, Danbury, Meriden, Milford, Middletown, Wallingford, Shelton, Naugatuck, Guilford, Southbury, New Canaan, Wolcott, Clinton, East Hampton, Durham, Chester and Newtown. - http://www.weather.gov/safety/flood

Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be aware of your surroundings and do not drive on flooded roads.

Coastal Flood Statement issued October 30 at 3:57AM EDT until October 30 at 8:00PM EDT by NWS Upton NY

Effective: Thu October 30, 2025, 3:57 AM
Expires: Thu October 30, 2025, 8:00 PM

* WHAT...Up to one half foot of inundation above ground level expected in vulnerable areas near the waterfront and shoreline. * WHERE...Bronx County. * WHEN...From this afternoon through this evening. * IMPACTS...Some water on low lying roads and property.

Do not drive through flooded roadways.