Special Marine Warning issued October 21 at 5:07PM PDT until October 21 at 5:30PM PDT by NWS San Diego CA

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   22 October 2026 at 00:10 UTC

   Version 2

   Source status changed

   Title

   Before

   Special Marine Warning issued October 21 at 4:42PM PDT until October 21 at 5:30PM PDT by NWS San Diego CA

   After

   Special Marine Warning issued October 21 at 5:07PM PDT until October 21 at 5:30PM PDT by NWS San Diego CA

   Source updated

   Before

   21 October 2026 at 23:42 UTC

   After

   22 October 2026 at 00:07 UTC

   Effective from

   Before

   21 October 2026 at 23:42 UTC

   After

   22 October 2026 at 00:07 UTC

   Forecast onset

   Before

   21 October 2026 at 23:42 UTC

   After

   22 October 2026 at 00:07 UTC

   Message type

   Before

   Alert

   After

   Update

   Source status

   Before

   Source alert

   After

   Source update

   Official description

   Before

   SMWSGX The National Weather Service in San Diego has issued a * Special Marine Warning for... Waters from San Mateo point to the Mexican Border Extending 10 to 60 nm out including San Clemente Island... * Until 530 PM PDT. * At 441 PM PDT, a shower capable of producing waterspouts was located 32 nm southeast of Avalon, moving north at 25 knots. HAZARD...Waterspouts and wind gusts 34 knots or greater. SOURCE...Radar. IMPACT...Waterspouts can create locally hazardous seas. Small craft could be damaged in briefly higher winds and suddenly higher waves. * The shower will remain over mainly open waters.

   After

   For the following areas... Waters from San Mateo point to the Mexican Border Extending 10 to 60 nm out including San Clemente Island... At 507 PM PDT, a shower capable of producing waterspouts was located 24 nm southeast of Avalon, moving north at 25 knots. HAZARD...Waterspouts and wind gusts 34 knots or greater. SOURCE...Radar indicated. IMPACT...Waterspouts can create locally hazardous seas. Small craft could be damaged in briefly higher winds and suddenly higher waves. The shower will remain over mainly open waters.

   External source link

   Before

   https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.3b09f96a8729edf37fd7aff96a1f18c0d6059980.001.1

   After

   https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.29732a732327553e94e7b4c03e0de22e2e06c559.001.1

   Bulletin issued: 22 October 2026 at 00:07 UTC

   View saved version 2

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

   {
     "id": "nws:7c53c0c01042538ccd575ead",
     "authorityId": "urn:oid:2.49.0.1.840.0.29732a732327553e94e7b4c03e0de22e2e06c559.001.1",
     "sender": "w-nws.webmaster@noaa.gov",
     "references": [
       {
         "identifier": "urn:oid:2.49.0.1.840.0.3b09f96a8729edf37fd7aff96a1f18c0d6059980.001.1",
         "sender": "w-nws.webmaster@noaa.gov"
       }
     ],
     "category": "weather",
     "title": "Special Marine Warning issued October 21 at 5:07PM PDT until October 21 at 5:30PM PDT by NWS San Diego CA",
     "eventType": "Special Marine Warning",
     "occurredAt": "2026-10-22T00:07:00.000Z",
     "issuedAt": "2026-10-22T00:07:00.000Z",
     "timeBasis": "Bulletin issued",
     "effectiveAt": "2026-10-22T00:07:00.000Z",
     "onsetAt": "2026-10-22T00:07:00.000Z",
     "expiresAt": "2026-10-22T00:30:00.000Z",
     "forecastEndAt": "2026-10-22T00:30:00.000Z",
     "severity": "Severe",
     "urgency": "Immediate",
     "certainty": "Likely",
     "messageType": "Update",
     "status": "Source update",
     "place": "Waters from San Mateo point to the Mexican Border Extending 10 to 60 nm out including San Clemente Island",
     "coordinates": null,
     "issuer": "NWS San Diego CA",
     "summary": "Special Marine Warning · Waters from San Mateo point to the Mexican Border Extending 10 to 60 nm out including San Clemente Island. Severe; likely; urgency: immediate.",
     "description": "For the following areas...\nWaters from San Mateo point to the Mexican Border Extending 10 to 60\nnm out including San Clemente Island...\n\nAt 507 PM PDT, a shower capable of producing waterspouts was located\n24 nm southeast of Avalon, moving north at 25 knots.\n\nHAZARD...Waterspouts and wind gusts 34 knots or greater.\n\nSOURCE...Radar indicated.\n\nIMPACT...Waterspouts can create locally hazardous seas. Small craft\ncould be damaged in briefly higher winds and suddenly\nhigher waves.\n\nThe shower will remain over mainly open waters.",
     "instruction": "Move to safe harbor until hazardous weather passes.",
     "url": "https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.29732a732327553e94e7b4c03e0de22e2e06c559.001.1",
     "source": "nws",
     "sourceName": "NOAA NWS"
   }

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