Coastal Flood Warning for Northwest Suffolk and Northern Nassau
If you are in immediate danger, call emergency services now.
For real-time, official alerts and instructions for your exact location, check weather.gov (US), weather.gc.ca (Canada), the Met Office (UK), or the Bureau of Meteorology (Australia) as applicable. This article is a data summary, not a substitute for the issuing agency's live warning.
Areazine synthesizes this NWS weather alert directly from NOAA's official public data feed. See our methodology for full source attribution and refresh cadence.
A Coastal Flood Warning is in effect for Northwest Suffolk and Northern Nassau counties from 6 PM today through 6 PM Sunday, with 2-3 feet of inundation expected near the waterfront.
The weather record, at a glance
- Record type
- Coastal Flood Warning
- Affected area
- Northwest Suffolk and Northern Nassau, New York
- Issued
- September 25, 2026
- Issuing authority
- NWS Upton NY
Flood notices turn on location and timing. Treat the named area as this record's scope; do not assume nearby counties, parishes, or waterways were included.
Record status: publication date is recent, but current status is not stored on this page. Check the issuing agency's live warning service before acting because warnings can be updated, narrowed, or cancelled.
Alert Details
Coastal Flood Warning issued by NWS Upton NY. The alert is effective from September 25 at 6:00 PM EDT through September 27 at 6:00 PM EDT.
Affected Areas
Northwest Suffolk and Northern Nassau Counties in New York.
What You Should 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.
Expected Conditions
Two to three feet of inundation above ground level expected in vulnerable areas near the waterfront and shoreline. Moderate flooding will occur over multiple high tide cycles, with the worst flooding expected during daytime high tide cycles Saturday and Sunday.
Timeline
The warning is in effect from 6 PM EDT Friday, September 25, 2026, through 6 PM EDT Sunday, September 27, 2026.
Original source: NOAA Official Notice ↗
Related Weather Alerts
All Weather Alerts →Comparable nationwide notices (length or severity timing) 8
Beyond this NWS weather alert's own category, Areazine surfaces two nationwide peer sets: length-matched and severity/date-matched notices from elsewhere in the archive, distinct from the same-feed Related list above.
Similar body length
Nearest notices by article body length (817 characters here).
Similar severity timing
Same severity (high) notices issued closest in time to September 25, 2026.
Frequently Asked Questions
Questions readers often have about this NWS weather alert.