Severe Storm Surge ● Monitoring
Coastal Flood Warning issued October 10 at 9:43PM PDT until October 11 at 3:00PM PDT by NWS San Diego CA, 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 through Sunday afternoon,
significant coastal flooding and beach erosion is likely. For
the Beach Hazards Statement from Sunday morning until Sunday
evening, surf of 5 to 7 feet with local sets up to 9 feet. For
the Coastal Flood Advisory from Sunday afternoon until Tuesday
afternoon, minor coastal flooding expected.
* WHERE...San Diego County Coastal Areas and Orange County
Coastal Areas.
* WHEN...For the Coastal Flood Warning, until 3 PM PDT Sunday.
For the Beach Hazards Statement, from Sunday morning through
Sunday evening. For the Coastal Flood Advisory, from 3 PM
Sunday to 2 PM PDT Tuesday.
* IMPACTS...Numerous roads and beach boardwalks may be closed due
to high water. Low-lying property including homes, businesses,
and some critical infrastructure may flood during morning high
tides. Beach erosion. Elevated surf will lead to a high risk of
rip currents and dangerous swimming conditions.
* ADDITIONAL DETAILS...Greatest impacts on Sunday morning from
Post-Tropical Cyclone Rachel with a combination of increased
swell, onshore winds, and high tides locally over 7.5 feet. High
tides lower each day into the middle of the week.
Measurements
| Coordinates | 39.9645, -100.8105 |
|---|---|
| Region | San Diego County Coastal Areas; Orange County Coastal |
| Location Precision | country |
| Issuing Authority | United States of America — us-noaa-nws-en |
| Cap Urgency | Expected |
| Cap Certainty | Likely |
| Cap Expires | 2026-10-11T06:15:00-07:00 |
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 8 days ago (Oct 11, 2026 04:45 UTC) · we last heard from WMO Alert Hub (national weather services) 56 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: San Diego County Coastal Areas; Orange County Coastal
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.