NOAA NWS / Event history

Special Marine Warning issued October 21 at 3:19PM PDT until October 21 at 4:15PM PDT by NWS Los Angeles/Oxnard CA

Special Marine Warning · Point Piedras Blancas to Point Sal from 10 to 60 NM; Waters from Pt. Sal to Santa Cruz Island CA and westward 60 nm including San Miguel and Santa Rosa Islands; Outer waters from Santa Cruz Island to San Clemente Island to 60 NM offshore including San Nicolas and Santa Barbara Islands. Severe; likely; urgency: immediate.

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Bulletin issued: 21 October 2026 at 22:19 UTC
First saved by us: 21 October 2026 at 21:25 UTC
Last included in a daily record: 21 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 update

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 · Point Piedras Blancas to Point Sal from 10 to 60 NM; Waters from Pt. Sal to Santa Cruz Island CA and westward 60 nm including San Miguel and Santa Rosa Islands; Outer waters from Santa Cruz Island to San Clemente Island to 60 NM offshore including San Nicolas and Santa Barbara Islands
Certainty / urgency: Likely / Immediate
Message expiry (not hazard end): 21 October 2026 at 23:15 UTC
Forecast onset / end: 21 October 2026 at 22:19 UTC / 21 October 2026 at 23:15 UTC

Archived official description

For the following areas... Outer waters from Santa Cruz Island to San Clemente Island to 60 NM offshore including San Nicolas and Santa Barbara Islands... Point Piedras Blancas to Point Sal from 10 to 60 NM... Waters from Pt. Sal to Santa Cruz Island CA and westward 60 nm including San Miguel and Santa Rosa Islands... At 318 PM PDT, severe thunderstorms capable of producing waterspouts were located along a line extending from 24 nm southwest of Morro Bay to 24 nm west of Point Arguello to 38 nm west of Point Conception to 43 nm southwest of San Miguel Island, moving northeast at 10 knots. HAZARD...Waterspouts and wind gusts in excess of 50 knots. SOURCE...Radar indicated. IMPACT...Waterspouts can easily overturn boats and create locally hazardous seas. Boats could suffer significant structural damage in high winds. Small craft could capsize in suddenly higher waves. Severe thunderstorms will remain over mainly open waters.

Instructions in this archived message

Move to safe harbor immediately as gusty winds and high waves are expected. Thunderstorms can produce sudden waterspouts. Waterspouts can easily overturn boats and create locally hazardous seas. Seek safe harbor immediately.

The saved record

What changed

1 update · 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.

Showing 1 change

Saved by us

21 October 2026 at 22:25 UTC

Version 2

Source status changed

Title: Before
Special Marine Warning issued October 21 at 2:22PM PDT until October 21 at 4:15PM PDT by NWS Los Angeles/Oxnard CA
After
Special Marine Warning issued October 21 at 3:19PM PDT until October 21 at 4:15PM PDT by NWS Los Angeles/Oxnard CA
Source updated: Before
21 October 2026 at 21:22 UTC
After
21 October 2026 at 22:19 UTC
Effective from: Before
21 October 2026 at 21:22 UTC
After
21 October 2026 at 22:19 UTC
Forecast onset: Before
21 October 2026 at 21:22 UTC
After
21 October 2026 at 22:19 UTC
Message type: Before
Alert
After
Update
Source status: Before
Source alert
After
Source update
Official description: Before
SMWLOX The National Weather Service in OXNARD has issued a * Special Marine Warning for... Outer waters from Santa Cruz Island to San Clemente Island to 60 NM offshore including San Nicolas and Santa Barbara Islands... Point Piedras Blancas to Point Sal from 10 to 60 NM... Waters from Pt. Sal to Santa Cruz Island CA and westward 60 nm including San Miguel and Santa Rosa Islands... * Until 415 PM PDT. * At 222 PM PDT, severe thunderstorms capable of producing waterspouts were located along a line extending from 33 nm southwest of Morro Bay to 31 nm southwest of Point Arguello to 46 nm west of San Miguel Island to 60 nm southwest of Santa Rosa Island, moving northeast at 10 knots. HAZARD...Waterspouts and wind gusts to 40 knots. SOURCE...Radar. IMPACT...Waterspouts can easily overturn boats and create locally hazardous seas. Small craft could be damaged in briefly higher winds and suddenly higher waves. * Severe thunderstorms will remain over mainly open waters.
After
For the following areas... Outer waters from Santa Cruz Island to San Clemente Island to 60 NM offshore including San Nicolas and Santa Barbara Islands... Point Piedras Blancas to Point Sal from 10 to 60 NM... Waters from Pt. Sal to Santa Cruz Island CA and westward 60 nm including San Miguel and Santa Rosa Islands... At 318 PM PDT, severe thunderstorms capable of producing waterspouts were located along a line extending from 24 nm southwest of Morro Bay to 24 nm west of Point Arguello to 38 nm west of Point Conception to 43 nm southwest of San Miguel Island, moving northeast at 10 knots. HAZARD...Waterspouts and wind gusts in excess of 50 knots. SOURCE...Radar indicated. IMPACT...Waterspouts can easily overturn boats and create locally hazardous seas. Boats could suffer significant structural damage in high winds. Small craft could capsize in suddenly higher waves. Severe thunderstorms will remain over mainly open waters.
External source link: Before
https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.8f8e4be9aa1df900a9051c9a5e60923975682721.001.1
After
https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.0a32d0d54c82d56ddcc6c37afb6b0e0b37d65fd1.001.1

Bulletin issued: 21 October 2026 at 22:19 UTC

View saved version 2

Original saved fields, unchanged. This is our record, not an archived copy of the external webpage.

{
  "id": "nws:c3f0b5ec13126d0cbcd7966f",
  "authorityId": "urn:oid:2.49.0.1.840.0.0a32d0d54c82d56ddcc6c37afb6b0e0b37d65fd1.001.1",
  "sender": "w-nws.webmaster@noaa.gov",
  "references": [
    {
      "identifier": "urn:oid:2.49.0.1.840.0.8f8e4be9aa1df900a9051c9a5e60923975682721.001.1",
      "sender": "w-nws.webmaster@noaa.gov"
    }
  ],
  "category": "weather",
  "title": "Special Marine Warning issued October 21 at 3:19PM PDT until October 21 at 4:15PM PDT by NWS Los Angeles/Oxnard CA",
  "eventType": "Special Marine Warning",
  "occurredAt": "2026-10-21T22:19:00.000Z",
  "issuedAt": "2026-10-21T22:19:00.000Z",
  "timeBasis": "Bulletin issued",
  "effectiveAt": "2026-10-21T22:19:00.000Z",
  "onsetAt": "2026-10-21T22:19:00.000Z",
  "expiresAt": "2026-10-21T23:15:00.000Z",
  "forecastEndAt": "2026-10-21T23:15:00.000Z",
  "severity": "Severe",
  "urgency": "Immediate",
  "certainty": "Likely",
  "messageType": "Update",
  "status": "Source update",
  "place": "Point Piedras Blancas to Point Sal from 10 to 60 NM; Waters from Pt. Sal to Santa Cruz Island CA and westward 60 nm including San Miguel and Santa Rosa Islands; Outer waters from Santa Cruz Island to San Clemente Island to 60 NM offshore including San Nicolas and Santa Barbara Islands",
  "coordinates": null,
  "issuer": "NWS Los Angeles/Oxnard CA",
  "summary": "Special Marine Warning · Point Piedras Blancas to Point Sal from 10 to 60 NM; Waters from Pt. Sal to Santa Cruz Island CA and westward 60 nm including San Miguel and Santa Rosa Islands; Outer waters from Santa Cruz Island to San Clemente Island to 60 NM offshore including San Nicolas and Santa Barbara Islands. Severe; likely; urgency: immediate.",
  "description": "For the following areas...\nOuter waters from Santa Cruz Island to San Clemente Island to 60 NM\noffshore including San Nicolas and Santa Barbara Islands...\nPoint Piedras Blancas to Point Sal from 10 to 60 NM...\nWaters from Pt. Sal to Santa Cruz Island CA and westward 60 nm\nincluding San Miguel and Santa Rosa Islands...\n\nAt 318 PM PDT, severe thunderstorms capable of producing waterspouts\nwere located along a line extending from 24 nm southwest of Morro Bay\nto 24 nm west of Point Arguello to 38 nm west of Point Conception to\n43 nm southwest of San Miguel Island, moving northeast at 10 knots.\n\nHAZARD...Waterspouts and wind gusts in excess of 50 knots.\n\nSOURCE...Radar indicated.\n\nIMPACT...Waterspouts can easily overturn boats and create locally\nhazardous seas. Boats could suffer significant structural\ndamage in high winds. Small craft could capsize in suddenly\nhigher waves.\n\nSevere thunderstorms will remain over mainly open waters.",
  "instruction": "Move to safe harbor immediately as gusty winds and high waves are\nexpected.\n\nThunderstorms can produce sudden waterspouts. Waterspouts can easily\noverturn boats and create locally hazardous seas. Seek safe harbor\nimmediately.",
  "url": "https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.0a32d0d54c82d56ddcc6c37afb6b0e0b37d65fd1.001.1",
  "source": "nws",
  "sourceName": "NOAA NWS"
}

Visit the external source ↗

The external page may have changed since this version was saved.

First saved record · 21 October 2026 at 21:25 UTC

Saved by us

21 October 2026 at 21:25 UTC

Starting point

First saved record

Our first saved version of Special Marine Warning issued October 21 at 2:22PM PDT until October 21 at 4:15PM PDT by NWS Los Angeles/Oxnard CA. We have no earlier saved version to compare.

Bulletin issued: 21 October 2026 at 21:22 UTC

View saved version 1

Original saved fields, unchanged. This is our record, not an archived copy of the external webpage.

{
  "id": "nws:272c2aabf831dc5422f6d55b",
  "authorityId": "urn:oid:2.49.0.1.840.0.8f8e4be9aa1df900a9051c9a5e60923975682721.001.1",
  "sender": "w-nws.webmaster@noaa.gov",
  "references": [],
  "category": "weather",
  "title": "Special Marine Warning issued October 21 at 2:22PM PDT until October 21 at 4:15PM PDT by NWS Los Angeles/Oxnard CA",
  "eventType": "Special Marine Warning",
  "occurredAt": "2026-10-21T21:22:00.000Z",
  "issuedAt": "2026-10-21T21:22:00.000Z",
  "timeBasis": "Bulletin issued",
  "effectiveAt": "2026-10-21T21:22:00.000Z",
  "onsetAt": "2026-10-21T21:22:00.000Z",
  "expiresAt": "2026-10-21T23:15:00.000Z",
  "forecastEndAt": "2026-10-21T23:15:00.000Z",
  "severity": "Severe",
  "urgency": "Immediate",
  "certainty": "Likely",
  "messageType": "Alert",
  "status": "Source alert",
  "place": "Point Piedras Blancas to Point Sal from 10 to 60 NM; Waters from Pt. Sal to Santa Cruz Island CA and westward 60 nm including San Miguel and Santa Rosa Islands; Outer waters from Santa Cruz Island to San Clemente Island to 60 NM offshore including San Nicolas and Santa Barbara Islands",
  "coordinates": null,
  "issuer": "NWS Los Angeles/Oxnard CA",
  "summary": "Special Marine Warning · Point Piedras Blancas to Point Sal from 10 to 60 NM; Waters from Pt. Sal to Santa Cruz Island CA and westward 60 nm including San Miguel and Santa Rosa Islands; Outer waters from Santa Cruz Island to San Clemente Island to 60 NM offshore including San Nicolas and Santa Barbara Islands. Severe; likely; urgency: immediate.",
  "description": "SMWLOX\n\nThe National Weather Service in OXNARD has issued a\n\n* Special Marine Warning for...\nOuter waters from Santa Cruz Island to San Clemente Island to 60 NM\noffshore including San Nicolas and Santa Barbara Islands...\nPoint Piedras Blancas to Point Sal from 10 to 60 NM...\nWaters from Pt. Sal to Santa Cruz Island CA and westward 60 nm\nincluding San Miguel and Santa Rosa Islands...\n\n* Until 415 PM PDT.\n\n* At 222 PM PDT, severe thunderstorms capable of producing\nwaterspouts were located along a line extending from 33 nm\nsouthwest of Morro Bay to 31 nm southwest of Point Arguello to 46\nnm west of San Miguel Island to 60 nm southwest of Santa Rosa\nIsland, moving northeast at 10 knots.\n\nHAZARD...Waterspouts and wind gusts to 40 knots.\n\nSOURCE...Radar.\n\nIMPACT...Waterspouts can easily overturn boats and create locally\nhazardous seas. Small craft could be damaged in briefly\nhigher winds and suddenly higher waves.\n\n* Severe thunderstorms will remain over mainly open waters.",
  "instruction": "Move to safe harbor immediately as gusty winds and high waves are\nexpected.\n\nThunderstorms can produce sudden waterspouts. Waterspouts can easily\noverturn boats and create locally hazardous seas. Seek safe harbor\nimmediately.",
  "url": "https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.8f8e4be9aa1df900a9051c9a5e60923975682721.001.1",
  "source": "nws",
  "sourceName": "NOAA NWS"
}

Visit the external source ↗

The external page may have changed since this version was saved.