New York alerts

Suffolk County, New York weather alerts

9 National Weather Service alerts are in force for Suffolk County: 4 coastal flood warnings, 2 rip current statements, a wind advisory and 2 high surf advisories.

Checked Sat, Sep 26, 2026, 12:12 PM EDT. Times are Eastern Daylight Time.

Suffolk County forecastLive radar here

Warnings on the map

Every watch, warning and advisory the National Weather Service has in force over Suffolk County, New York. Open it for the live map, where it pans and zooms.

Every watch, warning and advisory the National Weather Service has in force over Suffolk County, New York Open the live map with warnings and watches

Map layer from NOAA National Weather Service. Boundaries from the Iowa Environmental Mesonet.

Alerts in force9

Every product in force for Suffolk County, worst first, with its full text.

Coastal Flood Warning

Severe

Coastal Flood Warning issued September 26 at 5:14AM EDT until September 27 at 6:00PM EDT by NWS Upton NY

Issued Until 29 hr 47 min left

Areas Southwest Suffolk, NY; Southern Nassau, NY

Full text

* WHAT...For the Coastal Flood Warning, one to two feet and locally up to 2 1/2 feet of inundation above ground level in vulnerable areas near the waterfront and shoreline. For the High Surf Advisory, large breaking waves of 7 to 14 feet in the surf zone. For the High Rip Current Risk, dangerous rip currents. * WHERE...Southwest Suffolk and Southern Nassau Counties. * WHEN...For the Coastal Flood Warning, until 6 PM EDT Sunday. For the High Surf Advisory, until 8 PM EDT Sunday. For the High Rip Current Risk, through Sunday evening. * COASTAL FLOOD IMPACTS...Widespread moderate to major flooding of vulnerable areas near the waterfront and shoreline. There is an elevated threat to low lying properties. Flooding could extend inland from the waterfront and shoreline into areas that typically don't experience coastal flooding. Flooding will likely be exacerbated along north facing shorelines from wave action, particularly for the barrier island from Atlantic Beach, Long Beach to Jones Beach. This will result in numerous road closures and cause widespread flooding of low lying property including parking lots, parks, lawns, and homes and businesses with basements near the waterfront. Vehicles parked in vulnerable areas near the waterfront will likely become flooded. Flooding in the most vulnerable areas may not totally recede during the times of low tide. * SHOREFRONT AND BEACH IMPACTS...Breaking waves of 6 to 10 feet along with elevated water levels will result in widespread dune erosion and beach flooding. Localized overwashes are possible where dune structures are compromised, resulting in some flooding of roadways and vulnerable structures behind protective dunes. Dangerous swimming and surfing conditions and localized beach erosion. Life threatening rip currents are likely for all people entering the surf zone. Anyone visiting the beaches should stay out of the surf. Rip currents can sweep even the best swimmers away from shore into deeper water.

What to do

Take the necessary actions to protect flood prone property. If travel is required, do not drive around barricades or through water of unknown depth. Inexperienced swimmers should remain out of the water due to dangerous surf conditions.

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Coastal Flood Warning

Severe

Coastal Flood Warning issued September 26 at 5:14AM EDT until September 27 at 6:00PM EDT by NWS Upton NY

Issued Until 29 hr 47 min left

Areas Northeast Suffolk, NY

Full text

* WHAT...One to two feet and locally up to 2 1/2 feet of inundation above ground level in vulnerable areas near the waterfront and shoreline. * WHERE...Northeast Suffolk County. * WHEN...Until 6 PM EDT Sunday. * COASTAL IMPACTS...Widespread flooding of vulnerable areas near the waterfront and shoreline, including roads, parking lots, parks, lawns, and homes and businesses with basements near the waterfront. Numerous road closures are likely, and vehicles parked in vulnerable areas near the waterfront will likely become flooded. Flooding will also extend inland from the waterfront along tidal rivers and bays. * SHOREFRONT AND BEACH IMPACTS...Breaking waves of 4 to 7 feet along with elevated water levels will result in areas of dune erosion and beach flooding. Splashover over seawalls and overwashes where dune structures are compromised may locally exacerbate flooding of roadways and vulnerable structures behind protective dunes.

What to do

Take the necessary actions to protect flood prone property. If travel is required, do not drive around barricades or through water of unknown depth.

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Coastal Flood Warning

Severe

Coastal Flood Warning issued September 26 at 5:14AM EDT until September 27 at 6:00PM EDT by NWS Upton NY

Issued Until 29 hr 47 min left

Areas Bronx, NY; Northwest Suffolk, NY; Northern Queens, NY; Northern Nassau, NY

Full text

* WHAT...One to two feet and locally up to 2 1/2 feet of inundation above ground level in vulnerable areas near the waterfront and shoreline. * WHERE...Bronx, Northwest Suffolk, Northern Queens and Northern Nassau Counties. * WHEN...Until 6 PM EDT Sunday. * COASTAL IMPACTS...Widespread flooding of vulnerable areas near the waterfront and shoreline, including roads, parking lots, parks, lawns, and homes and businesses with basements near the waterfront. Numerous road closures are likely, and vehicles parked in vulnerable areas near the waterfront will likely become flooded. Flooding will also extend inland from the waterfront along tidal rivers and bays. * SHOREFRONT AND BEACH IMPACTS...Breaking waves of 3 to 6 feet, along with elevated water levels, will result in areas of dune erosion with damage to a few waterfront structures possible. Splashover over seawalls and overwashes where dune structures are compromised may locally exacerbate flooding of roadways and vulnerable structures behind protective dunes.

What to do

Take the necessary actions to protect flood prone property. If travel is required, do not drive around barricades or through water of unknown depth.

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Coastal Flood Warning

Severe

Coastal Flood Warning issued September 26 at 5:14AM EDT until September 27 at 6:00PM EDT by NWS Upton NY

Issued Until 29 hr 47 min left

Areas Southeast Suffolk, NY

Full text

* WHAT...For the Coastal Flood Warning, one to two feet and locally up to 2 1/2 feet of inundation above ground level in vulnerable areas near the waterfront and shoreline. For the High Surf Advisory, large breaking waves of 7 to 14 feet in the surf zone. For the High Rip Current Risk, dangerous rip currents. * WHERE...Southeast Suffolk County. * WHEN...For the Coastal Flood Warning, until 6 PM EDT Sunday. For the High Surf Advisory, until 8 PM EDT Sunday. For the High Rip Current Risk, through Sunday evening. * COASTAL FLOOD IMPACTS...Widespread moderate to locally major flooding of vulnerable areas near the waterfront and shoreline. The threat for major flooding is mainly for the north shore of the south fork and north shore of Fire Island due to additive wave action potentially exacerbating flooding. This will result in numerous road closures and cause widespread flooding of low lying property including parking lots, parks, lawns, and homes and businesses with basements near the waterfront. Vehicles parked in vulnerable areas near the waterfront will likely become flooded. Flooding will also extend inland from the waterfront along tidal rivers and bays. * SHOREFRONT AND BEACH IMPACTS...Breaking waves of 6 to 10 feet along with elevated water levels will result in widespread dune erosion and beach flooding. Localized overwashes are possible where dune structures are compromised, resulting in some flooding of roadways and vulnerable structures behind protective dunes. Dangerous swimming and surfing conditions and localized beach erosion. Life threatening rip currents are likely for all people entering the surf zone. Anyone visiting the beaches should stay out of the surf. Rip currents can sweep even the best swimmers away from shore into deeper water.

What to do

Take the necessary actions to protect flood prone property. If travel is required, do not drive around barricades or through water of unknown depth. Inexperienced swimmers should remain out of the water due to dangerous surf conditions.

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Rip Current Statement

Moderate

Rip Current Statement issued September 26 at 5:14AM EDT until September 27 at 8:00PM EDT by NWS Upton NY

Issued Until 31 hr 47 min left

Areas Southeast Suffolk, NY

Full text

* WHAT...For the Coastal Flood Warning, one to two feet and locally up to 2 1/2 feet of inundation above ground level in vulnerable areas near the waterfront and shoreline. For the High Surf Advisory, large breaking waves of 7 to 14 feet in the surf zone. For the High Rip Current Risk, dangerous rip currents. * WHERE...Southeast Suffolk County. * WHEN...For the Coastal Flood Warning, until 6 PM EDT Sunday. For the High Surf Advisory, until 8 PM EDT Sunday. For the High Rip Current Risk, through Sunday evening. * COASTAL FLOOD IMPACTS...Widespread moderate to locally major flooding of vulnerable areas near the waterfront and shoreline. The threat for major flooding is mainly for the north shore of the south fork and north shore of Fire Island due to additive wave action potentially exacerbating flooding. This will result in numerous road closures and cause widespread flooding of low lying property including parking lots, parks, lawns, and homes and businesses with basements near the waterfront. Vehicles parked in vulnerable areas near the waterfront will likely become flooded. Flooding will also extend inland from the waterfront along tidal rivers and bays. * SHOREFRONT AND BEACH IMPACTS...Breaking waves of 6 to 10 feet along with elevated water levels will result in widespread dune erosion and beach flooding. Localized overwashes are possible where dune structures are compromised, resulting in some flooding of roadways and vulnerable structures behind protective dunes. Dangerous swimming and surfing conditions and localized beach erosion. Life threatening rip currents are likely for all people entering the surf zone. Anyone visiting the beaches should stay out of the surf. Rip currents can sweep even the best swimmers away from shore into deeper water.

What to do

Take the necessary actions to protect flood prone property. If travel is required, do not drive around barricades or through water of unknown depth. Inexperienced swimmers should remain out of the water due to dangerous surf conditions.

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Rip Current Statement

Moderate

Rip Current Statement issued September 26 at 5:14AM EDT until September 27 at 8:00PM EDT by NWS Upton NY

Issued Until 31 hr 47 min left

Areas Southwest Suffolk, NY; Southern Nassau, NY

Full text

* WHAT...For the Coastal Flood Warning, one to two feet and locally up to 2 1/2 feet of inundation above ground level in vulnerable areas near the waterfront and shoreline. For the High Surf Advisory, large breaking waves of 7 to 14 feet in the surf zone. For the High Rip Current Risk, dangerous rip currents. * WHERE...Southwest Suffolk and Southern Nassau Counties. * WHEN...For the Coastal Flood Warning, until 6 PM EDT Sunday. For the High Surf Advisory, until 8 PM EDT Sunday. For the High Rip Current Risk, through Sunday evening. * COASTAL FLOOD IMPACTS...Widespread moderate to major flooding of vulnerable areas near the waterfront and shoreline. There is an elevated threat to low lying properties. Flooding could extend inland from the waterfront and shoreline into areas that typically don't experience coastal flooding. Flooding will likely be exacerbated along north facing shorelines from wave action, particularly for the barrier island from Atlantic Beach, Long Beach to Jones Beach. This will result in numerous road closures and cause widespread flooding of low lying property including parking lots, parks, lawns, and homes and businesses with basements near the waterfront. Vehicles parked in vulnerable areas near the waterfront will likely become flooded. Flooding in the most vulnerable areas may not totally recede during the times of low tide. * SHOREFRONT AND BEACH IMPACTS...Breaking waves of 6 to 10 feet along with elevated water levels will result in widespread dune erosion and beach flooding. Localized overwashes are possible where dune structures are compromised, resulting in some flooding of roadways and vulnerable structures behind protective dunes. Dangerous swimming and surfing conditions and localized beach erosion. Life threatening rip currents are likely for all people entering the surf zone. Anyone visiting the beaches should stay out of the surf. Rip currents can sweep even the best swimmers away from shore into deeper water.

What to do

Take the necessary actions to protect flood prone property. If travel is required, do not drive around barricades or through water of unknown depth. Inexperienced swimmers should remain out of the water due to dangerous surf conditions.

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Wind Advisory

Moderate

Wind Advisory issued September 26 at 4:40AM EDT until September 27 at 6:00AM EDT by NWS Upton NY

Issued Until 17 hr 47 min left

Areas Northern Middlesex, CT; Northern New London, CT; Southern Fairfield, CT; Southern New Haven, CT; Southern Middlesex, CT; Southern New London, CT; Southern Westchester, NY; New York (Manhattan), NY; Bronx, NY; Richmond (Staten Is.), NY; Kings (Brooklyn), NY; Northwest Suffolk, NY; Northeast Suffolk, NY; Southwest Suffolk, NY; Southeast Suffolk, NY; Northern Queens, NY; Northern Nassau, NY; Southern Queens, NY; Southern Nassau, NY

Full text

* WHAT...North winds 25 to 35 mph with gusts up to 55 mph. * WHERE...All of New York City and Long Island in southeast New York, and coastal and southeast Connecticut. * WHEN...Until 6 AM EDT Sunday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.

What to do

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

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High Surf Advisory

Minor

High Surf Advisory issued September 26 at 5:14AM EDT until September 27 at 8:00PM EDT by NWS Upton NY

Issued Until 31 hr 47 min left

Areas Southwest Suffolk, NY; Southern Nassau, NY

Full text

* WHAT...For the Coastal Flood Warning, one to two feet and locally up to 2 1/2 feet of inundation above ground level in vulnerable areas near the waterfront and shoreline. For the High Surf Advisory, large breaking waves of 7 to 14 feet in the surf zone. For the High Rip Current Risk, dangerous rip currents. * WHERE...Southwest Suffolk and Southern Nassau Counties. * WHEN...For the Coastal Flood Warning, until 6 PM EDT Sunday. For the High Surf Advisory, until 8 PM EDT Sunday. For the High Rip Current Risk, through Sunday evening. * COASTAL FLOOD IMPACTS...Widespread moderate to major flooding of vulnerable areas near the waterfront and shoreline. There is an elevated threat to low lying properties. Flooding could extend inland from the waterfront and shoreline into areas that typically don't experience coastal flooding. Flooding will likely be exacerbated along north facing shorelines from wave action, particularly for the barrier island from Atlantic Beach, Long Beach to Jones Beach. This will result in numerous road closures and cause widespread flooding of low lying property including parking lots, parks, lawns, and homes and businesses with basements near the waterfront. Vehicles parked in vulnerable areas near the waterfront will likely become flooded. Flooding in the most vulnerable areas may not totally recede during the times of low tide. * SHOREFRONT AND BEACH IMPACTS...Breaking waves of 6 to 10 feet along with elevated water levels will result in widespread dune erosion and beach flooding. Localized overwashes are possible where dune structures are compromised, resulting in some flooding of roadways and vulnerable structures behind protective dunes. Dangerous swimming and surfing conditions and localized beach erosion. Life threatening rip currents are likely for all people entering the surf zone. Anyone visiting the beaches should stay out of the surf. Rip currents can sweep even the best swimmers away from shore into deeper water.

What to do

Take the necessary actions to protect flood prone property. If travel is required, do not drive around barricades or through water of unknown depth. Inexperienced swimmers should remain out of the water due to dangerous surf conditions.

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High Surf Advisory

Minor

High Surf Advisory issued September 26 at 5:14AM EDT until September 27 at 8:00PM EDT by NWS Upton NY

Issued Until 31 hr 47 min left

Areas Southeast Suffolk, NY

Full text

* WHAT...For the Coastal Flood Warning, one to two feet and locally up to 2 1/2 feet of inundation above ground level in vulnerable areas near the waterfront and shoreline. For the High Surf Advisory, large breaking waves of 7 to 14 feet in the surf zone. For the High Rip Current Risk, dangerous rip currents. * WHERE...Southeast Suffolk County. * WHEN...For the Coastal Flood Warning, until 6 PM EDT Sunday. For the High Surf Advisory, until 8 PM EDT Sunday. For the High Rip Current Risk, through Sunday evening. * COASTAL FLOOD IMPACTS...Widespread moderate to locally major flooding of vulnerable areas near the waterfront and shoreline. The threat for major flooding is mainly for the north shore of the south fork and north shore of Fire Island due to additive wave action potentially exacerbating flooding. This will result in numerous road closures and cause widespread flooding of low lying property including parking lots, parks, lawns, and homes and businesses with basements near the waterfront. Vehicles parked in vulnerable areas near the waterfront will likely become flooded. Flooding will also extend inland from the waterfront along tidal rivers and bays. * SHOREFRONT AND BEACH IMPACTS...Breaking waves of 6 to 10 feet along with elevated water levels will result in widespread dune erosion and beach flooding. Localized overwashes are possible where dune structures are compromised, resulting in some flooding of roadways and vulnerable structures behind protective dunes. Dangerous swimming and surfing conditions and localized beach erosion. Life threatening rip currents are likely for all people entering the surf zone. Anyone visiting the beaches should stay out of the surf. Rip currents can sweep even the best swimmers away from shore into deeper water.

What to do

Take the necessary actions to protect flood prone property. If travel is required, do not drive around barricades or through water of unknown depth. Inexperienced swimmers should remain out of the water due to dangerous surf conditions.

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The past year in Suffolk County

In the past year the National Weather Service issued 158 alerts for Suffolk County, including 11 severe thunderstorm warnings, 4 coastal flood warnings, 3 flash flood warnings and 3 snow squall warnings.

ProductIssuedMost recent
Severe Thunderstorm Warning11Jul 21, 2026
Coastal Flood Warning4Sep 25, 2026
Flash Flood Warning3Aug 13, 2026
Snow Squall Warning3Jan 1, 2026
Freeze Warning2Apr 21, 2026
Winter Storm Warning2Jan 25, 2026
Blizzard Warning1Feb 22, 2026
Extreme Cold Warning1Feb 7, 2026
Extreme Heat Warning1Jul 1, 2026
High Wind Warning1Oct 12, 2025
Flood Watch4Sep 13, 2026
Severe Thunderstorm Watch4Jul 4, 2026
Coastal Flood Watch3Sep 25, 2026
High Wind Watch3Nov 5, 2025
Winter Storm Watch3Feb 22, 2026
Freeze Watch2Apr 21, 2026
Extreme Cold Watch1Feb 7, 2026
Extreme Heat Watch1Jul 3, 2026
Flood Advisory27Sep 26, 2026
Dense Fog Advisory11May 10, 2026
Wind Advisory11Sep 25, 2026
Coastal Flood Advisory9Sep 25, 2026
Heat Advisory5Aug 9, 2026
Winter Weather Advisory5Feb 10, 2026
Cold Weather Advisory3Feb 8, 2026
Frost Advisory3Apr 20, 2026
High Surf Advisory3Sep 24, 2026
Rip Currents Statement20Sep 22, 2026
Coastal Flood Statement11Sep 25, 2026

Warnings issued

  1. Coastal Flood Warning
  2. Flash Flood Warning
  3. Flash Flood Warning
  4. Severe Thunderstorm Warning
  5. Flash Flood Warning
  6. Severe Thunderstorm Warning
  7. Severe Thunderstorm Warning
  8. Severe Thunderstorm Warning
  9. Severe Thunderstorm Warning
  10. Extreme Heat Warning
  11. Severe Thunderstorm Warning
  12. Severe Thunderstorm Warning
  13. Severe Thunderstorm Warning
  14. Severe Thunderstorm Warning
  15. Freeze Warning
  16. Coastal Flood Warning
  17. Blizzard Warning
  18. Extreme Cold Warning
  19. Winter Storm Warning
  20. Snow Squall Warning
  21. Snow Squall Warning
  22. Snow Squall Warning
  23. Winter Storm Warning
  24. Severe Thunderstorm Warning
  25. Severe Thunderstorm Warning
  26. Coastal Flood Warning
  27. Freeze Warning
  28. Coastal Flood Warning
  29. High Wind Warning
Every alert, most recent first
  1. Flood Advisory
  2. Coastal Flood Watch
  3. Coastal Flood Warning
  4. Wind Advisory
  5. Coastal Flood Statement
  6. Coastal Flood Advisory
  7. Coastal Flood Advisory
  8. High Surf Advisory
  9. Rip Currents Statement
  10. Rip Currents Statement
  11. Flood Advisory
  12. Flood Advisory
  13. Flood Watch
  14. Rip Currents Statement
  15. Rip Currents Statement
  16. Rip Currents Statement
  17. Flood Advisory
  18. Flood Advisory
  19. Flood Advisory
  20. Flood Watch
  21. Rip Currents Statement
  22. Flash Flood Warning
  23. Flood Advisory
  24. Flood Advisory
  25. Heat Advisory
  26. Flood Advisory
  27. Heat Advisory
  28. Flood Advisory
  29. Flood Advisory
  30. Flood Advisory
  31. Flood Advisory
  32. Rip Currents Statement
  33. High Surf Advisory
  34. Rip Currents Statement
  35. Rip Currents Statement
  36. Flood Advisory
  37. Flood Advisory
  38. Flood Advisory
  39. Flood Advisory
  40. Flood Watch

The 40 most recent of 158.

From the Iowa Environmental Mesonet’s archive of NWS watches, warnings and advisories (VTEC), by the county’s own code and the forecast zones inside it. Each links to the alert's own page, with its text, map, radar and sounding.

Every alert in Suffolk County since 1986

Nearby

The counties around Suffolk County, with what is in force in each.

What this means

Warning
The hazard is happening or about to. Act now: a tornado warning means take shelter, a flash flood warning means move to higher ground.
Watch
Conditions favor the hazard. Nothing is happening yet; have a plan and be ready to act if a warning follows.
Advisory
A hazard that is less serious than a warning but can still cause trouble, such as dense fog, heat or light ice.
Statement
Information about weather that does not yet meet a warning: a strong storm, a hydrologic update, or a special weather statement.

Severity (extreme, severe, moderate, minor) is the rating the issuing office gives each product. More on the difference: tornado watch vs. tornado warning. Alerts come from the National Weather Service; follow its instructions and your local officials.

Follow these alerts

Alerts for Suffolk County in your reader or calendar.

The alerts on this page as a feed, updated every minute, for a feed reader or an app that reads Atom or RSS, and as a calendar where each alert runs from when it takes effect to when it ends. A feed or a calendar is not a warning siren: for warnings, keep a weather radio or your phone's emergency alerts on.

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Sources

Alerts from the National Weather Service's public feed, read afresh every minute, and matched to counties and zones by their UGC codes. Warnings from outside the United States come from each country's own meteorological service. Follow the issuing office's instructions and your local officials.