Severe Storm Surge ● Closed
Coastal Flood Warning issued September 25 at 5:27AM EDT until September 27 at 6:00PM EDT by NWS Upton NY, United States of America
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* WHAT...For the High Surf Advisory, large breaking waves of 9
to 15 feet in the surf zone. For the High Rip Current Risk,
dangerous rip currents. For the Coastal Flood Warning, one to
two feet of inundation above ground level expected in
vulnerable areas near the waterfront and shoreline.
* WHERE...Southeast Suffolk County.
* WHEN...For the High Surf Advisory, until 8 PM EDT Saturday.
For the High Rip Current Risk, through Saturday evening. For
the Coastal Flood Warning, from 6 PM this evening to 6 PM EDT
Sunday.
* 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. 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.
* ADDITIONAL DETAILS...Moderate to major flooding will occur over
multiple high tide cycles tonight through Sunday. The worst
flooding is expected with the Saturday morning high tide cycle.
Measurements
| Coordinates | 39.9645, -100.8105 |
|---|---|
| Region | Southeast Suffolk |
| Location Precision | country |
| Issuing Authority | United States of America — us-noaa-nws-en |
| Cap Urgency | Expected |
| Cap Certainty | Likely |
| Cap Expires | 2026-09-25T13:30:00-04:00 |
Official source
Warnings courtesy of the issuing national meteorological service, via the WMO Alert Hub.
This is an official warning issued by the authority named above. Follow its instructions and those of your local emergency services.
Severity as published by WMO Alert Hub (national weather services).
View original reportAlso reported by: WMO WMO WMO WMO WMO WMO WMO WMO
This event as JSON · API and licence
Source updated 24 days ago (Sep 25, 2026 09:28 UTC) · we last heard from WMO Alert Hub (national weather services) 36 seconds ago
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About this location
The agency did not publish coordinates for this warning. The pin is the centre of the country, not the location of the event — read the area name, not the map, for where it applies.
Area as the agency stated it: Southeast Suffolk
Official authorities in United States
If you are there, these are the bodies whose instructions apply. This site is not an emergency service and does not issue warnings.
More for United States →What to do
Follow the instructions issued by WMO Alert Hub (national weather services) and your local emergency services. The guidance below is background.
Understanding surge zones, evacuation timing, and why storm surge is the deadliest part of a tropical cyclone.
Open Storm Surge Safety Guide →Nearby & related events
Disclaimer: figures are automatic feeds from the named agencies and may be revised. Do not use this page for life-safety decisions — follow official local emergency services.