10.31 ft gage · 0.82 cfs
🗺️ Open the interactive flood map
Flood status right now
◆ Flooding possible Coastal Flood Advisory in effect.
◆ Be aware Coastal Flood Advisory until Oct 30, 2:00 PM
Coastal Flood Advisory issued October 29 at 1:21PM PDT until October 30 at 2:00PM PDT by NWS San Diego CA
What should I do? Move cars off low streets on Balboa Island, the Peninsula and Lido, put sandbags at doors, and avoid walking through floodwater.
Details
* WHAT...Minor coastal flooding. * WHERE...San Diego County Coastal Areas and Orange County Coastal Areas. * WHEN...For the Coastal Flood Advisory, from 1 PM today to 2 PM PDT Friday. * IMPACTS...Flooding of lots, parks, and roads with only isolated road closures expected. * ADDITIONAL DETAILS...Coastal residents and managers of infrastructure in the advisory area should prepare for rising water and take appropriate action to protect life and property. Highest tides will occur around noon on Friday. Observed high tides are 1.3 to 1.6 feet above astronomical tide predictions.
NWS instructions: If travel is required, allow extra time as some roads may be closed. Do not drive around barricades or through water of unknown depth. Take the necessary actions to protect flood-prone property.
Source: National Weather Service alerts (updated 3 min ago); NOAA CO-OPS water levels & tide predictions, USGS stream gauges, NWS rainfall forecast (updated 23 min ago).
🌊 King tides (next 30 days)
High tides of 6.5 ft MLLW or more at Newport Bay. These are the days low streets on Balboa Island and the Peninsula flood, especially with surge.
| When | Height |
|---|---|
| Mon, Nov 23, 6:12 AM | ◆ 6.7 ft |
| Tue, Nov 24, 6:50 AM | ◆ 6.9 ft |
| Wed, Nov 25, 7:32 AM | ◆ 7.0 ft |
| Thu, Nov 26, 8:18 AM | ◆ 6.9 ft |
| Fri, Nov 27, 9:08 AM | ◆ 6.5 ft |
📏 Ocean level vs forecast
3.55 ft
Los Angeles (nearest live gauge), 2026-10-29 23:06 PT. Predicted 2.22 ft.
◆ +16 in vs tide table
When the ocean runs higher than predicted, add that to the tide table. A 6.5 ft tide with +18 in of surge reaches 8 ft.
NWS flood thresholds at this gauge (station datum): minor 10.82 ft, moderate 11.82 ft.
🌧️ Rain next 72 hours
0.83 in
◆ Max chance 90%
NWS San Diego gridded forecast. 1 in+ can pond low streets and the Back Bay; rain at high tide is worst because drains are closed by tide valves.
🏞️ Creeks & river (USGS)
BONITA Creek at IRVINE
SANTA ANA River at SANTA ANA
1.45 ft gage · 0 cfs
Santa Ana River and San Diego Creek drain into West Newport and Upper Newport Bay. Upper Newport Bay has no live USGS gauge; see OC Watersheds.
Neighborhoods most at risk
Balboa Island ▲ Highest risk
Highest risk in the city. Water overtops low seawall sections on the South and North Bay Fronts and backs up through storm drains at king tides of 6.5 ft and up. Move cars off the Bay Front and Park Ave and sandbag doors.
Balboa Peninsula ◆ High risk
Bay-side streets from 15th St to the Fun Zone and the Balboa Blvd low points flood at king tides; ocean side relies on the winter sand berms. Stay off the berms.
Lido Isle ◆ High risk
Low bulkheads and street ends on the harbor side can overtop at king tides; Via Lido and Lido Village streets pond in heavy rain.
West Newport ◆ High risk
Newport Shores and the Santa Ana River mouth area are low-lying; watch heavy rain plus high tides, and big south swells pushing over the berms near the river jetties.
Dover Shores ◆ Some risk
Bayshores and the Upper Bay edge can see minor tidal flooding at extreme high tides.
Corona del Mar ◆ Some risk
Mostly bluff-top; flooding is limited to the harbor entrance and China Cove area at extreme tides.
🧱 Free sandbags
- Prefilled: City Corporation Yard, 592 Superior Ave.; Marina Park, 1600 W. Balboa Blvd.; Temporary Fire Station No. 1, East Ocean Front lot near Balboa Pier.
- Empty bags: Newport Beach fire stations and Lifeguard HQ, 70 Newport Pier (fill with beach sand).
- Call Municipal Operations at 949-644-3055 to confirm. Locations change during events.
City flooding & sandbag info · Disaster preparedness · Sign up for city texts at Newport Notified (NBPD.org) · NOAA station 9410580
What should I do before a king tide?
- Move cars off bay-front and low streets 2 hours before high tide.
- Sandbag doors, garages and low seawall gaps; check your private seawall.
- Clear drains and secure outdoor items and boats.
- Never walk or drive through floodwater: it can hide holes and sewage.
- Get free email alerts for coastal flood advisories and warnings.
FAQ
- When are the king tides in Newport Beach?
- King tides are the highest tides of the year, usually November through January around new and full moons. This page lists every predicted high tide of 6.5 ft MLLW or more in the next 30 days from NOAA station 9410580.
- Does Balboa Island flood?
- Yes. Balboa Island is the lowest part of Newport Beach. At tides around 6.5–7 ft, especially with storm surge or El Niño ocean levels, water can overtop low seawall sections and back up through storm drains onto the Bay Front and nearby streets.
- Where can I get sandbags in Newport Beach?
- Prefilled sandbags: City Corporation Yard (592 Superior Ave.), Marina Park (1600 W. Balboa Blvd.) and the temporary Fire Station No. 1 near Balboa Pier. Empty bags are at fire stations and Lifeguard HQ. Call 949-644-3055 to confirm.
- What is a coastal flood warning?
- The National Weather Service issues a Coastal Flood Advisory when minor tidal flooding of low areas is expected and a Coastal Flood Warning when flooding that threatens property or roads is expected. Sign up for free email alerts to get them for your neighborhood.
- Is it safe to walk in floodwater?
- No. Tidal and storm floodwater can carry sewage and hide holes, debris and manhole openings. Do not drive through flooded streets.