Severe Storm Surge ● Monitoring
Coastal Flood Warning issued October 17 at 3:46PM EDT until October 20 at 5:00PM EDT by NWS Newport/Morehead City NC, 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 Beach Hazards Statement, dangerous rip currents,
large breaking waves expected, and strong longshore currents in
the surf zone. For the High Surf Advisory, large breaking waves
of 8 to 14 feet expected in the surf zone. For the Coastal
Flood Warning, 2 to 4 feet of inundation above ground level
expected in low- lying areas near shorelines and tidal
waterways.
* WHERE...Hatteras Island.
* WHEN...For the High Surf Advisory, until 5 PM EDT Tuesday. For
the Beach Hazards Statement, until 8 PM EDT this evening. For
the Coastal Flood Warning, until 5 PM EDT Tuesday.
* IMPACTS...2 to 4 feet of inundation above ground level is
expected in some areas near shorelines and tidal waterways
resulting in an elevated threat of property damage. Flooding
will extend inland from the waterfront threatening some homes
and businesses. Numerous road closures and flooding of vehicles
will be possible. Vulnerable portions of NC-12 may be inundated,
especially around high tide. There is a possibility of being
stranded on Hatteras Island for multiple days. This could be
life threatening if you have an emergency. Dangerous swimming
and surfing conditions and localized beach erosion.
* ADDITIONAL DETAILS...This has the potential to be a long
duration event bringing more significant ocean overwash impacts
to vulnerable oceanside areas through multiple high tide cycles
into next week. Minor soundside water level rises will also be
possible.
Measurements
| Coordinates | 39.9645, -100.8105 |
|---|---|
| Region | Hatteras Island |
| Location Precision | country |
| Issuing Authority | United States of America — us-noaa-nws-en |
| Cap Urgency | Expected |
| Cap Certainty | Likely |
| Cap Expires | 2026-10-18T06:00:00-04:00 |
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
This event as JSON · API and licence
Source updated 2 days ago (Oct 17, 2026 19:47 UTC) · we last heard from WMO Alert Hub (national weather services) 59 seconds ago
On a slow connection? Low-bandwidth version — no map, no scripts, under 14 KB.
Internet connectivity at the time
Internet connectivity in United States dropped 4 hours after this event, and stayed disrupted for about 1 hour.
From 18 Oct 2026 00:00 UTC to 18 Oct 2026 01:00 UTC. Detected by active probing — networks that stopped answering.
Internet outages have many causes — damaged cables, power failures, network maintenance and deliberate shutdowns among them. IODA detects the loss of connectivity and does not attribute it to anything. This is shown because it happened at the same time, not because one caused the other.
Measured by IODA, Georgia Institute of Technology.
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: Hatteras Island
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 →Earlier storm surge events in United States
Severe and extreme events of the same kind, before this one. Listed for scale, not because they are connected to it.
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.