Severe Storm Surge ● Closed
Coastal Flood Warning issued September 23 at 3:00PM EDT until September 26 at 2:00AM 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...For the Coastal Flood Warning, one to two feet of
inundation above ground level in low-lying areas near
shorelines and tidal waterways. For the High Surf Advisory,
large breaking waves of up to 12 feet in the surf zone. For
the High Rip Current Risk, dangerous rip currents.
* WHERE...Delaware Beaches.
* WHEN...For the Coastal Flood Warning, until 2 AM EDT Saturday.
For the High Surf Advisory, until 6 PM EDT Saturday. For the
High Rip Current Risk, through Saturday evening.
* IMPACTS...At this level, widespread roadway flooding occurs in
coastal and bayside communities and along inland tidal
waterways. Many roads become impassable. Some damage to
vulnerable structures may begin to occur. Dangerous swimming
and surfing conditions and localized beach erosion. Rip
currents can sweep even the best swimmers away from shore into
deeper water.
* ADDITIONAL DETAILS...Significant beach erosion is expected.
Breaching of sand dunes is possible. Moderate tidal flooding
could continue into the weekend. Cannot rule out major tidal
flooding impacts, especially around Rehoboth Bay and Indian
River.
Measurements
| Coordinates | 39.9645, -100.8105 |
|---|---|
| Region | Delaware Beaches |
| Location Precision | country |
| Issuing Authority | United States of America — us-noaa-nws-en |
| Cap Urgency | Expected |
| Cap Certainty | Likely |
| Cap Expires | 2026-09-24T06:00:00-04:00 |
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 reportAlso reported by: WMO WMO WMO
This event as JSON · API and licence
Source updated 26 days ago (Sep 23, 2026 19:02 UTC) · we last heard from WMO Alert Hub (national weather services) 30 seconds 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: Delaware Beaches
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.