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

Elevation Above Sea Level: 0 feet

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

GPS Coordinates: 40.72105556, -73.09125

Nearby Water Temperatures

Coastal Flood Statement issued January 24 at 1:44PM EST until January 26 at 6:00AM EST by NWS Upton NY

Effective: Sat January 24, 2026, 1:44 PM
Expires: Mon January 26, 2026, 6:00 AM

* WHAT...Less than 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, Bronx, Northwest Suffolk, Northeast Suffolk, Southeast Suffolk, Northern Queens and Northern Nassau Counties. * WHEN...Late Sunday night. * COASTAL FLOOD IMPACTS...Brief minor flooding of the most vulnerable locations near the waterfront and shoreline. * SHORELINE IMPACTS...3 to 5 ft breaking waves along north to northeast facing shorelines along western Long Island Sound and Gardiners Bay will locally exacerbate flooding of shoreline roads and adjacent properties, with minor beach erosion.

Do not drive through flooded roadways.

Winter Storm Warning issued January 25 at 1:54PM EST until January 26 at 1:00PM EST by NWS Upton NY

Effective: Sun January 25, 2026, 1:54 PM
Expires: Sun January 25, 2026, 10:00 PM

* WHAT...Heavy snow, mixing with and changing to sleet late this afternoon and then mixing with or changing to light freezing rain tonight. Additional snow and sleet accumulations between 3 and 5 inches and ice accumulations up to one tenth of an inch. Winds gusting as high as 40 mph. * WHERE...Portions of northeast New Jersey and southeast New York. * WHEN...Until 1 PM EST Monday. * IMPACTS...Roads, and especially bridges and overpasses, are already slick and hazardous. Visibilities may drop below 1/4 mile due to falling and blowing snow.

If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. Check local Department of Transportation information services for the latest road conditions.

Coastal Flood Statement issued January 25 at 3:15PM EST until January 26 at 6:00AM EST by NWS Upton NY

Effective: Sun January 25, 2026, 3:15 PM
Expires: Mon January 26, 2026, 6:00 AM

* WHAT...Up to one half 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, Bronx, Northwest Suffolk, Northeast Suffolk, Southeast Suffolk, Northern Queens and Northern Nassau Counties. * WHEN...From 1 AM EST Monday through late tonight. * COASTAL FLOOD IMPACTS...Brief minor flooding of the most vulnerable locations near the waterfront and shoreline. * SHORELINE IMPACTS...Breaking waves 3 to 5 feet along north to northeast facing shorelines along western Long Island Sound and Gardiners Bay could locally exacerbate flooding of shoreline roads and adjacent properties, with minor beach erosion also possible.

Do not drive through flooded roadways.

Winter Storm Warning issued January 25 at 8:44PM EST until January 26 at 1:00PM EST by NWS Upton NY

Effective: Sun January 25, 2026, 8:44 PM
Expires: Mon January 26, 2026, 6:00 AM

* WHAT...Mixed snow and sleet. Freezing light rain possible mainly along the south shore of Long Island and the twin forks area of Long Island. Freezing light rain or drizzle will however be possible across the entire area late tonight. Additional snow and sleet accumulations up to one inch and ice accumulations up to one tenth of an inch. Winds gusting as high as 40 mph. * WHERE...Portions of northeast New Jersey and southeast New York. * WHEN...Until 1 PM EST Monday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. * ADDITIONAL DETAILS...Snow showers will still be possible through Monday morning with little potential additional accumulation. Hazardous road conditions are anticipated regardless.

If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. Check local Department of Transportation information services for the latest road conditions.

Coastal Flood Statement issued January 24 at 1:44PM EST until January 26 at 4:00AM EST by NWS Upton NY

Effective: Sat January 24, 2026, 1:44 PM
Expires: Mon January 26, 2026, 4:00 AM

* WHAT...Less than one foot of inundation above ground level expected in vulnerable areas near the waterfront and shoreline. * WHERE...Southern Nassau County. * WHEN...Late Sunday night. * IMPACTS...Brief minor flooding of the most vulnerable locations near the waterfront and shoreline.

Do not drive through flooded roadways.

Coastal Flood Statement issued January 25 at 3:15PM EST until January 26 at 4:00AM EST by NWS Upton NY

Effective: Sun January 25, 2026, 3:15 PM
Expires: Mon January 26, 2026, 4:00 AM

* WHAT...Up to one half foot of inundation above ground level expected in vulnerable areas near the waterfront and shoreline. * WHERE...Southern Nassau County. * WHEN...From midnight EST tonight through late tonight. * IMPACTS...Brief minor flooding of the more vulnerable locations near the waterfront and shoreline.

Do not drive through flooded roadways.

Coastal Flood Statement issued January 25 at 3:15PM EST until January 26 at 4:00AM EST by NWS Upton NY

Effective: Sun January 25, 2026, 3:15 PM
Expires: Mon January 26, 2026, 4:00 AM

* WHAT...Up to one half foot of inundation above ground level expected in vulnerable areas near the waterfront and shoreline. * WHERE...In New Jersey, Hudson, Eastern Essex and Eastern Union Counties. In New York, Richmond (Staten Island) and Southern Queens Counties. * WHEN...From midnight EST tonight through late tonight. * IMPACTS...Brief minor flooding of the more vulnerable locations near the waterfront and shoreline.

Do not drive through flooded roadways.

Winter Storm Warning issued January 25 at 1:54PM EST until January 26 at 1:00PM EST by NWS Upton NY

Effective: Sun January 25, 2026, 1:54 PM
Expires: Sun January 25, 2026, 10:00 PM

* WHAT...Heavy snow, mixing with or changing to sleet this evening, then changing to light freezing rain or freezing drizzle overnight. Additional snow and sleet accumulations between 5 and 11 inches and ice accumulations around a light glaze. Winds gusting as high as 35 mph. * WHERE...Portions of southern Connecticut, northeast New Jersey, and southeast New York. * WHEN...Until 1 PM EST Monday. * IMPACTS...Roads, and especially bridges and overpasses, are already slick and hazardous. Visibilities may drop below 1/4 mile due to falling and blowing snow.

If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. Check local Department of Transportation information services for the latest road conditions.

Winter Storm Warning issued January 25 at 8:44PM EST until January 26 at 1:00PM EST by NWS Upton NY

Effective: Sun January 25, 2026, 8:44 PM
Expires: Mon January 26, 2026, 6:00 AM

* WHAT...Mainly snow, but a mix of sleet and snow mainly near the Connecticut coast and parts of the Lower Hudson Valley. Light freezing rain or drizzle possible late tonight. Additional snow accumulations between 1 and 3 inches and ice accumulations around a light glaze. Winds gusting as high as 35 mph. * WHERE...Portions of southern Connecticut, northeast New Jersey, and southeast New York. * WHEN...Until 1 PM EST Monday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. Visibilities may briefly drop below 1/4 mile due to falling and blowing snow. * ADDITIONAL DETAILS...Snow showers will still be possible through Monday morning with little potential additional accumulation. Hazardous road conditions are anticipated regardless.

If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. Check local Department of Transportation information services for the latest road conditions.