San Mateo County, CA
Alerts
Alerts are listed in order of start time and level of severity. Click on the alert title to read details for each alert.
In effect from Sunday 07/26 2:17 PM PDT – Wednesday 07/29 6:00 PM PDT
Issued by NWS San Francisco CA
What
Long-period southerly swell will bring an increased risk of sneaker waves and strong rip currents. Breaking waves will reach up to 10 feet along some south and southwest facing beaches and break points.
Where
Pacific Coast beaches.
When
Through 6 PM PDT Wednesday.
Impacts
Dangerous conditions are forecast along the shoreline. Hazards include sneaker waves, strong rip currents, and large breaking waves.
What to Do
Stay off of jetties, piers, rocks, and other waterside infrastructure. Remain out of the water to avoid hazardous surf and NEVER turn your back on the ocean. Monitor local weather, surf and tide forecasts at www.weather.gov/mtr.
Areas Impacted
- San Francisco
- Coastal North Bay Including Point Reyes National Seashore
- San Francisco Peninsula Coast
- Northern Monterey Bay
- Southern Monterey Bay and Big Sur Coast
Tips to Stay Safe
Your area may see dangerous swimming conditions. Use caution:
- Stay off of rocks and jetties due to dangerous conditions
- Stay out of the water to avoid hazardous swimming conditions, and stay near occupied lifeguard towers
- Keep small children in sight and within arm’s reach at all times.
Briefings
From the Forecaster
Beach Hazards
Created by the NWS San Francisco WFO
Planning a trip to the coast over the next few days? Take extra precautions near the water! A long-period southerly swell, generated by distant tropical cyclones in the Eastern Pacific, is pushing toward our coastline. This swell will bring elevated surf and hazardous ocean conditions through mid-week. Here is what you need to know: What: Increased risk of sneaker waves and strong rip currents, with breaking waves up to 10 feet expected at south and southwest-facing beaches and breakpoints. Where: Pacific Coast beaches across the San Francisco Bay Area and Central Coast. When: Now active through Wednesday Afternoon. Beach Safety Tips: 🪨 Stay Off Infrastructure: Keep off rock outcrops, jetties, piers, and breakwaters—sudden large waves can easily knock you off your feet. 🏊 Avoid Hazardous Surf: Remain out of the water. 👁️ Stay Alert: Never turn your back on the ocean! Always keep a close watch on children and pets near the water's edge.
Seven-day Weather Risk Overview
The graphic shows the daily risk summary for 7 days. Daily risk is based on highest risk factor for that day.
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