NOAA NWS / Event history
Flood Watch issued October 20 at 12:11PM PDT until October 22 at 4:00PM PDT by NWS Los Angeles/Oxnard CA
Flood Watch · Malibu Coast; Western Santa Monica Mountains Recreational Area; Eastern Santa Monica Mountains Recreational Area. Severe; possible; urgency: future.
- Bulletin issued
- 20 October 2026 at 19:11 UTC
- First saved by us
- 20 October 2026 at 19:25 UTC
- Last included in a daily record
- 20 October 2026
The linked daily edition preserves what we captured that UTC day; this event page is not a live warning.
- Source classification
- Severe · Source alert
A recent feed check does not mean a new observation. This page preserves source records; it does not establish current safety or warning status.
- Issuer / area
- NWS Los Angeles/Oxnard CA · Malibu Coast; Western Santa Monica Mountains Recreational Area; Eastern Santa Monica Mountains Recreational Area
- Certainty / urgency
- Possible / Future
- Message expiry (not hazard end)
- 21 October 2026 at 15:00 UTC
- Forecast onset / end
- 21 October 2026 at 23:00 UTC / 22 October 2026 at 23:00 UTC
Archived official description
* WHAT...Flooding caused by excessive rainfall is possible. * WHERE...A portion of southwest California, including the following areas, Eastern Santa Monica Mountains Recreational Area, Malibu Coast and Western Santa Monica Mountains Recreational Area. * WHEN...From Wednesday afternoon through Thursday afternoon. * IMPACTS...Flooding may occur in poor drainage and urban areas. Extensive street flooding and flooding of creeks and rivers are possible. * ADDITIONAL DETAILS... - Rain rates between 0.50 and 1.00 inch per hour are possible, heaviest Wednesday night. - http://www.weather.gov/safety/flood
Instructions in this archived message
You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop.
The saved record
What changed
0 updates · 1 first record
Each update compares two versions we saved. This may not include every update from the source. A missing report does not mean an event has ended.
First saved record · 20 October 2026 at 19:25 UTC
Saved by us
Starting point
First saved record
Our first saved version of Flood Watch issued October 20 at 12:11PM PDT until October 22 at 4:00PM PDT by NWS Los Angeles/Oxnard CA. We have no earlier saved version to compare.
Bulletin issued: 20 October 2026 at 19:11 UTC
View saved version 1
Original saved fields, unchanged. This is our record, not an archived copy of the external webpage.
{ "id": "nws:ef83408f50d29ffd30306fc4", "authorityId": "urn:oid:2.49.0.1.840.0.7d87785117a5f603f13f438f0f71acf3ff0107df.002.1", "sender": "w-nws.webmaster@noaa.gov", "references": [], "category": "weather", "title": "Flood Watch issued October 20 at 12:11PM PDT until October 22 at 4:00PM PDT by NWS Los Angeles/Oxnard CA", "eventType": "Flood Watch", "occurredAt": "2026-10-20T19:11:00.000Z", "issuedAt": "2026-10-20T19:11:00.000Z", "timeBasis": "Bulletin issued", "effectiveAt": "2026-10-20T19:11:00.000Z", "onsetAt": "2026-10-21T23:00:00.000Z", "expiresAt": "2026-10-21T15:00:00.000Z", "forecastEndAt": "2026-10-22T23:00:00.000Z", "severity": "Severe", "urgency": "Future", "certainty": "Possible", "messageType": "Alert", "status": "Source alert", "place": "Malibu Coast; Western Santa Monica Mountains Recreational Area; Eastern Santa Monica Mountains Recreational Area", "coordinates": null, "issuer": "NWS Los Angeles/Oxnard CA", "summary": "Flood Watch · Malibu Coast; Western Santa Monica Mountains Recreational Area; Eastern Santa Monica Mountains Recreational Area. Severe; possible; urgency: future.", "description": "* WHAT...Flooding caused by excessive rainfall is possible.\n\n* WHERE...A portion of southwest California, including the following\nareas, Eastern Santa Monica Mountains Recreational Area, Malibu\nCoast and Western Santa Monica Mountains Recreational Area.\n\n* WHEN...From Wednesday afternoon through Thursday afternoon.\n\n* IMPACTS...Flooding may occur in poor drainage and urban areas.\nExtensive street flooding and flooding of creeks and rivers are\npossible.\n\n* ADDITIONAL DETAILS...\n- Rain rates between 0.50 and 1.00 inch per hour are possible,\nheaviest Wednesday night.\n- http://www.weather.gov/safety/flood", "instruction": "You should monitor later forecasts and be alert for possible Flood\nWarnings. Those living in areas prone to flooding should be prepared\nto take action should flooding develop.", "url": "https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.7d87785117a5f603f13f438f0f71acf3ff0107df.002.1", "source": "nws", "sourceName": "NOAA NWS" }Visit the external source ↗The external page may have changed since this version was saved.