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🏛 Official alert Special Marine Warning Weather & disasters Serious

Special Marine Warning

N Issued by NWS San Diego CA ⏳ In force until Thu 22 Oct, 03:30 📍 Waters from San Mateo point to the Mexican Border Extending 10 to 60 nm out including San Clemente Island (approximate) 🕑 54 min ago
🌐 Translate: ·

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. Sm…

🗃 Archived report - it is no longer on the live map. Pages are kept for 30 days.

📡 CAP alert details

Common Alerting Protocol
Official alert linked ▾
⚠
SeveritySevere
⏱
UrgencyImmediate
❓
CertaintyLikely
EventSpecial Marine Warning
Response typeAvoid
CategoryMet
Affected areaWaters from San Mateo point to the Mexican Border Extending 10 to 60 nm out including San Clemente Island
Issuing authorityNWS San Diego CA
ContactNot supplied

🕓 Alert timing · EAT

Sent2026-10-21T17:07:00-07:00
Effective2026-10-21T17:07:00-07:00
Onset2026-10-21T17:07:00-07:00
Expires2026-10-21T17:30:00-07:00

📋 Official instructions

Move to safe harbor until hazardous weather passes.

📄 Message details

Alert identifierurn:oid:2.49.0.1.840.0.29732a732327553e94e7b4c03e0de22e2e06c559.001.1
Message typeUpdate
Senderw-nws.webmaster@noaa.gov
ScopePublic
CAP statusActual
Related messagesurn:oid:2.49.0.1.840.0.3b09f96a8729edf37fd7aff96a1f18c0d6059980.001.1
ⓘ CAP fields populate when an official alert is linked.

🛡 Safety advice

General guidance for this type of incident - not official instructions.
  • Move to safe harbor until hazardous weather passes.
  • Stay aware of your surroundings in this area.
  • Follow official updates from the police and local authorities.
  • In an emergency call 112 (police) or 112 (ambulance), or request help through Jilinde.

📰 Story summary

From the report shown in the feed:
  • 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.
  • Sm…
ⓘ News summary · read the original report for full context.

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