San Diego Braces for Coastal Flood Warning as High Tides and Warm Temperatures Grip County
SAN DIEGO – San Diego County is experiencing a mix of bright, sunny conditions and heightened coastal risks as a Coastal Flood Warning remains in effect through Thursday, October 30. The National Weather Service has alerted residents and visitors to prepare for unusually high tides and potential flooding, particularly in low-lying beach areas.
Unusually High Tides Pose Flooding Threats
Over the weekend, the National Oceanic and Atmospheric Administration (NOAA) recorded morning high tides exceeding 8 feet—a stark reminder of the volatile coastal conditions. Ocean levels are currently predicted to run between 1 to 1.7 feet above normal tide projections, creating a heightened risk for flooding during peak morning hours through Thursday. While large waves are not expected, even smaller surf could push further inland than usual due to the elevated water levels.
Authorities urge residents and visitors to steer clear of flooded areas and avoid driving through unknown-depth standing water. Shoreline erosion is also a concern, particularly in vulnerable coastal communities such as Mission Beach, Pacific Beach, and La Jolla.
Key Details: Coastal Flood Warning active until 1 p.m. Thursday. Avoid flooded zones. Morning high tides pose the greatest risk.
Heat Wave Peaks Monday Before Cooling Trend Begins
Monday marks the warmest day of the week, with coastal highs reaching 77–81°F and inland areas climbing into the mid-70s to low 80s. Mountain regions will see temperatures ranging from 67–75°F, while deserts could soar to 84–89°F. However, a cooling trend is set to begin Tuesday, accompanied by the return of the marine layer and patchy fog along the coast.
| Region | High Temperature Range |
|---|---|
| Coast | 77–81°F |
| Inland | 79–82°F |
| Mountains | 67–75°F |
| Deserts | 84–89°F |
Rain Chances Loom for Halloween Weekend
As the workweek closes, a developing low-pressure system over the Pacific Northwest is expected to usher in cooler temperatures, increased cloud cover, and breezier conditions beginning Thursday. While rainfall predictions remain uncertain, the convergence of two atmospheric disturbances—one carrying subtropical moisture—could create a wetter-than-usual Halloween weekend.
Meteorologists caution that confidence in exact timing and totals remains moderate, but coastal Southern California residents should prepare for the possibility of scattered showers late Thursday night through Friday. Those planning outdoor Halloween festivities are advised to monitor updates as the week progresses.
Staying Updated: How to Track Local Forecasts
For real-time weather alerts and localized forecasts, residents can follow ABC 10News Weather Anchor Ava Kershner on Instagram, Facebook, and X (formerly Twitter). The National Weather Service San Diego office also provides continuous updates and safety advisories via its official channels.
Whether enjoying the sunshine or bracing for the tides, staying informed is key as San Diego navigates an eventful week of weather extremes.
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