Alert USA
weather NWS minor San Luis Obispo, CA October 22, 2026 at 2:54 AM

Flood Advisory

* WHAT...Flooding caused by excessive rainfall continues.

* WHERE...Far western San Luis Obispo County in southwestern California...

* WHEN...Until 1000 PM PDT.

* IMPACTS...Minor flooding in low-lying and poor drainage areas. Water over roadways.

* ADDITIONAL DETAILS... - At 753 PM PDT, Doppler radar indicated heavy rain due to thunderstorms. Minor flooding is ongoing or expected to begin shortly in the advisory area. - Rock slides and mudslides are possible. - Some locations that will experience flooding include... San Luis Obispo, Morro Bay, Pismo Beach, Atascadero, Arroyo Grande, Nipomo, Cambria, Point Piedras Blancas, Grover Beach, Guadalupe, Cayucos, Baywood-Los Osos, Diablo Canyon, Templeton, Highway 101 over Cuesta Grade, Avila Beach, Santa Margarita, Shell Beach, Oceano and Hearst Castle. - http://www.weather.gov/safety/flood

Flooding in San Luis Obispo, CA can cut off roads with little warning, damage homes near low-lying areas, and disrupt power and water service. Even a few inches of moving water can carry away a vehicle.

This report is based on information from NWS, monitored by Alert USA's verified emergency feed.

Alert USA anticipates a high chance of travel disruptions, elevated property risk in low-lying areas, and possible power outages while the event is active.

Recommended steps: avoid flooded roads — turn around, don't drown; move to higher ground if you are in a low-lying area; charge phones and prepare for power loss; check on family and neighbors.

Alert USA is tracking this flood event and will update this report as verified information becomes available.

Verified by Alert USA • NWS

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