Severe Storm Surge ● Closed
Coastal Flood Warning issued September 26 at 4:34PM EDT until September 27 at 3:00AM EDT by NWS Mount Holly NJ, United States of America
Loading live data… · Marker positions are approximate; severity is labelled in each popup. Sources: USGS, GDACS, NASA EONET, NOAA/NWS, EMSC.
* WHAT...Up to one foot of inundation above ground level in low-
lying areas near shorelines and tidal waterways.
* WHERE...In Delaware, New Castle. In New Jersey, Salem.
* WHEN...Until 3 AM EDT Sunday.
* IMPACTS...At this level, flooding begins on the most
vulnerable roads along tidal waterways. Some partial or full
road closures are possible.
Measurements
| Coordinates | 39.9645, -100.8105 |
|---|---|
| Region | New Castle; Salem |
| Location Precision | country |
| Issuing Authority | United States of America — us-noaa-nws-en |
| Cap Urgency | Expected |
| Cap Certainty | Likely |
| Cap Expires | 2026-09-27T03:00:00-04:00 |
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 reportThis event as JSON · API and licence
Source updated 23 days ago (Sep 26, 2026 20:37 UTC) · we last heard from WMO Alert Hub (national weather services) 1 minute ago
On a slow connection? Low-bandwidth version — no map, no scripts, under 14 KB.
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: New Castle; Salem
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.