Santa Monica beachgoers face dangerous conditions Monday, Nov. 9, as the National Weather Service warns that surf and coastal flooding impacts will peak along Los Angeles County beaches.

A coastal flood advisory remains in effect through noon Tuesday, Nov. 10, covering Los Angeles County beaches, the Malibu coast and Catalina and Santa Barbara Islands, according to the NWS Los Angeles/Oxnard office. The advisory warns of minor to locally moderate coastal flooding during morning high tides, dangerous rip currents and breaking waves with elevated surf up to 4 to 6 feet, especially across west-facing beaches.

Morning high tides of 7.2 to 7.4 feet are expected through Tuesday, according to the NWS advisory updated Monday morning.

The NWS noted that the incoming swell is from the west. That means south-facing areas such as Malibu and Long Beach should see fewer impacts than during previous flooding events driven by southerly swells, KTLA reported.

What residents should know

The advisory warns that pooling of seawater is possible around high tide at beach and harbor areas. Enhanced beach erosion is also possible. Flooding could affect coastal roads and parking lots, with isolated road closures possible, according to KTLA.

The NWS instructs residents to protect flood-prone property and not drive around barricades or through water of unknown depth.

Rip currents can pull swimmers and surfers out to sea, and waves can wash people off beaches and rocks, the advisory states. The agency also warned that waves could capsize small boats nearshore.

Damage already mounting in Orange County

The advisory follows significant flooding that struck Sunset Beach and Huntington Harbour, where more than 100 homes and other structures suffered water damage during a previous round of high tides, according to KTLA's earlier reporting. Six homes were yellow-tagged, indicating restricted access because of potentially unsafe conditions.

Paul, a Sunset Beach resident, told KTLA reporter Jennifer McGraw on Nov. 8 that his home suffered extensive damage, with water reaching nearly every room.

"It was bad. It was awful," he said. "When I got home from work, when I heard that my house was flooding, there was three, four, not five inches of water from front to back of the house and all the bedrooms and everything."

Worse flooding may lie ahead

The current round of high tides may be a preview of what is coming. Dylan Flynn, a National Weather Service meteorologist for the Bay Area office, told SFGATE that worse coastal flooding is expected during Thanksgiving week, when the full moon returns.

"This whole scenario repeats during the week of Christmas," Flynn wrote in an email to SFGATE. "Expect to see water in places it's never been."

Several California tide gauges recorded their highest readings in a century during the last week of October, according to the National Oceanic and Atmospheric Administration. Santa Monica's gauge came close to breaking its all-time record during that period, SFGATE reported.

NOAA predicts that some of the year's highest tides, known as king tides, will last from Nov. 22 to 27 and again from Dec. 22 to 26, increasing the risk of flooding.

Residents who see flooding or hazardous conditions along Santa Monica beaches can call the city's non-emergency line or dial 911 in an emergency.