Record King Tides Flood SoCal Coast, Closing PCH Through Thursday

Key points

• Pacific Coast Highway was closed in both directions between Warner Avenue and Seal Beach Boulevard on Tuesday morning, with closures extending to Huntington Beach as water spilled onto the roadway.
• Newport Beach recorded a historic high tide of 8.4 feet at 10 a.m., surpassing previous records dating back to the 1920s, while the San Pedro gauge broke its 2005 record on Monday.
• Officials in Orange and Los Angeles counties issued coastal flood warnings through 1 p.m. Thursday, noting tides are running 1 to 1.7 feet above astronomical predictions.
• Residents in Long Beach and Newport Beach deployed sandbags and pumps to protect homes and businesses, with some areas experiencing water intrusion through seawall cracks.
• Metrolink suspended service on its Orange County Line through Friday due to the flooding, while parking enforcement was suspended in Newport Beach to allow residents to move vehicles to higher ground.

Background

This event follows a week of extreme weather in Southern California, including heavy rain and hail earlier in October. Previous coverage noted that these record tides are part of a broader pattern of 'king tides' amplified by El Niño, with scientists warning that similar or more severe flooding could occur around Thanksgiving and Christmas due to ongoing ocean warming.

How outlets are covering it

The California Post emphasizes the immediate infrastructure impact, highlighting the closure of the Pacific Coast Highway and the record-breaking tide gauge readings in San Pedro and Newport Beach. The Orange County Register provides a more granular, on-the-ground perspective, detailing specific flooding in Sunset Beach, Long Beach’s Naples Island, and the efforts of residents to protect properties like the 'Pirate House' in Newport Beach. The New York Times frames the event as a preview of winter conditions, noting that Los Angeles Harbor and San Francisco also set records, and stresses that these tides are a precursor to higher levels expected later in the year due to El Niño.

Why it matters

The flooding underscores the increasing frequency and severity of coastal events in California, driven by climate change and El Niño. It highlights the vulnerability of infrastructure and communities in low-lying areas, with potential for further damage as tides remain elevated. The closures of major roads and rail services also indicate the broader economic and logistical impacts of such events.

What to watch

Forecasters expect tides to remain near record levels through Wednesday, with a gradual decline by Thursday. A potential storm system may bring rain to Southern California this weekend, though current models suggest it will be weaker than initially predicted. Residents are advised to monitor tide levels and prepare for possible further flooding, especially in areas with minimal sandy beach or existing seawall damage.