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Severe · Special Marine WarningThis alert has expired. It is kept for reference.

Special Marine Warning issued October 21 at 10:07PM PDT until October 21

Affecting East Santa Barbara Channel from Pt. Conception to Pt. Mugu CA including Santa Cruz Island; Inner waters from Point Mugu to San Mateo Pt. CA including Santa Catalina and Anacapa Islands; 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

In effect until: Oct 22, 2026, 5:45 AM

East Santa Barbara Channel from Pt. Conception to Pt. Mugu CA including Santa Cruz Island; Inner waters from Point Mugu to San Mateo Pt. CA including Santa Catalina and Anacapa Islands; 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

Likely impact; effects through 5:45 AM.

Stay indoors, monitor local alerts, and follow instructions from local officials.

Read the original bulletin (official text)
For the following areas...
East Santa Barbara Channel from Pt. Conception to Pt. Mugu CA
including Santa Cruz Island...
Inner waters from Point Mugu to San Mateo Pt. CA including Santa
Catalina and Anacapa Islands...
Outer waters from Santa Cruz Island to San Clemente Island to 60 NM
offshore including San Nicolas and Santa Barbara Islands...
Waters from Pt. Sal to Santa Cruz Island CA and westward 60 nm
including San Miguel and Santa Rosa Islands...

At 1007 PM PDT, severe thunderstorms capable of producing waterspouts
were located along a line extending from 30 nm northeast of Point
Conception to 9 nm south of Goleta Point to 13 nm northeast of San
Nicolas Island, moving northeast at 15 knots.

HAZARD...Waterspouts and wind gusts to nearly 50 knots.

SOURCE...Radar indicated.

IMPACT...Waterspouts can easily overturn boats and create locally
hazardous seas. Small craft could be damaged in briefly
higher winds and suddenly higher waves.

Locations impacted include...
West Point Santa Cruz Island, Ventura Harbor, San Nicolas Island,
Anacapa Island, and Santa Rosa Island.
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Alert data: U.S. National Weather Service / NOAA · Translation: WeatherTranslate™