Severe Flood ● Monitoring
Flood Watch issued October 11 at 4:02AM PDT until October 11 at 8:00PM 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...Flooding caused by excessive rainfall continues to be
possible.
* WHERE...A portion of Southwest California, including the following
areas, Apple and Lucerne Valleys, Coachella Valley, Riverside
County Mountains, San Bernardino County Mountains, San Diego County
Coastal Areas, San Diego County Deserts, San Diego County
Mountains, San Diego County Valleys and San Gorgonio Pass near
Banning.
* WHEN...Through this evening.
* IMPACTS...Excessive runoff may result in flooding of rivers,
creeks, streams, and other low-lying and flood-prone locations.
* ADDITIONAL DETAILS...
- The remnants of Post-Tropical Cyclone Rachel will bring periods
of moderate to heavy rain to all of San Diego County, Riverside
County mountains and deserts, and San Bernardino County mountains
and deserts through late this afternoon. Maximum hourly rainfall
rates of 0.50 to 0.60 inches per hour are possible for San Diego
Coast and Valleys. Maximum hourly rainfall rates of 0.50 to 0.70
inches per hour are possible across area deserts and 0.70 to 1
inch per hour rates are possible across area mountains. Heaviest
rainfall is most likely through early this afternoon. Rainfall
will taper off from south to north today. Lingering lighter
showers are expected to continue into Monday.
- https://www.weather.gov/safety/flood
Measurements
| Coordinates | 39.9645, -100.8105 |
|---|---|
| Region | San Diego County Coastal Areas; San Diego County Inland Valleys; San Bernardino County Mountains; Riverside County Mountains; San Diego County Mountains; A |
| Location Precision | country |
| Issuing Authority | United States of America — us-noaa-nws-en |
| Cap Urgency | Future |
| Cap Certainty | Possible |
| Cap Expires | 2026-10-11T14:15:00-07:00 |
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 11:03 UTC) · we last heard from WMO Alert Hub (national weather services) 14 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; San Diego County Inland Valleys; San Bernardino County Mountains; Riverside County Mountains; San Diego County Mountains; A
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.
Flood preparation, evacuation decisions, and the dangers of driving or walking through floodwater.
Open Flood Safety Guide →Earlier flood 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.