Overview
- The National Hurricane Center downgraded Marie to a tropical storm Monday and models show it weakening to a remnant low this week while its long‑period swell continues to reach California beaches.
- Beach Hazards Statements, High Surf Advisories, and Coastal Flood guidance remain in effect for parts of the coast because breaking waves up to about 8–10 feet, strong rip currents, and sneaker waves present elevated danger to anyone near the water.
- A building inland high‑pressure ridge will drive a rapid warmup midweek with inland highs expected in the upper‑90s to low‑100s and increased risk of heat‑related illness for vulnerable people.
- Residual tropical moisture from Marie will raise humidity and bring only a slight chance of light coastal or mountain showers midweek, with most forecasts keeping rainfall amounts very limited.
- Forecasts show a trough and onshore return by late week that should ease the heat and reduce marine impacts, and officials urge people to heed lifeguard warnings, avoid entering surf during advisories, stay hydrated, and monitor NWS/NHC updates.