Despite never making landfall, the United States Weather Bureau warned that Liza could cause damage in California due to 4-foot (1.2 m) to 6-foot (1.8 m) swells it generated merging with high tide, creating 5-foot (1.5 m) to 10-foot (3.0 m) breaker waves which they reported could sweep over jetties and breakwaters as well as cause riptides on beaches.
Officials at Long Beach were keeping an eye on breakwater activity and Laguna Beach lifeguards were prepared in case the swells reported there grew.
At Newport Beach, the Corps of Engineers were brought in to create a buffer with sand and rock to protect homes between 41st Street and 46th Street, and concern in West Newport Beach was that the hurricane would cause more damage to oceanfront homes that were weakened by swirling seas the previous week.
The waves were expected to be the only cause of damage from the hurricane, which forecaster Emii Kurtz remarked was "much too far away" to affect atmospheric weather conditions.

From September 2 to September 3, large waves, some as high as 12-foot (3.7 m), impacted beaches throughout southern California, with Los Angeles and Orange Counties experiencing growing breakers, and Cabrillo Beach experiencing riptides for two days straight.
Due to the Labor Day beach turnout, many reports of rescuing swimmers who were swept up by waves caused by the hurricane were received.
On September 2, forty-seven swimmers in Zuma Beach had to be rescued despite warnings to stay out of deep water, and an additional 261 rescues were reported in Newport.
More rescues were reported the next day, although no exact total from the second day is known.
At the El Morro Beach Trailer Park near Laguna Beach, a group of sundecks estimated at $5,000 (1968 USD) were ripped from their supports by rough seas.
Long Beach, in terms of damage, was particularly hit hard by Liza, with debris and sea foam from the heavy surf clogging storm drains.
A group of tidal pools formed along an area of the beach, draining out from a parking lot on 72nd Street onto Ocean Boulevard, resulting in flooding that closed a section of the boulevard between 68th Place and 72nd Place to traffic.
Various flower gardens were also reported to have been swamped by the flooding, but no damage to housing was reported.
The weakened properties in West Newport Beach also sustained no additional damage.
Despite never making landfall, the United States Weather Bureau warned that Liza could cause damage in California due to 4-foot (1.2 m) to 6-foot (1.8 m) swells it generated merging with high tide, creating 5-foot (1.5 m) to 10-foot (3.0 m) breaker waves which they reported could sweep over jetties and breakwaters as well as cause riptides on beaches. Officials at Long Beach were keeping an eye on breakwater activity and Laguna Beach lifeguards were prepared in case the swells reported there grew. At Newport Beach, the Corps of Engineers were brought in to create a buffer with sand and rock to protect homes between 41st Street and 46th Street, and concern in West Newport Beach was that the hurricane would cause more damage to oceanfront homes that were weakened by swirling seas the previous week. The waves were expected to be the only cause of damage from the hurricane, which forecaster Emii Kurtz remarked was "much too far away" to affect atmospheric weather conditions.
From September 2 to September 3, large waves, some as high as 12-foot (3.7 m), impacted beaches throughout southern California, with Los Angeles and Orange Counties experiencing growing breakers, and Cabrillo Beach experiencing riptides for two days straight. Due to the Labor Day beach turnout, many reports of rescuing swimmers who were swept up by waves caused by the hurricane were received. On September 2, forty-seven swimmers in Zuma Beach had to be rescued despite warnings to stay out of deep water, and an additional 261 rescues were reported in Newport. More rescues were reported the next day, although no exact total from the second day is known. At the El Morro Beach Trailer Park near Laguna Beach, a group of sundecks estimated at $5,000 (1968 USD) were ripped from their supports by rough seas. Long Beach, in terms of damage, was particularly hit hard by Liza, with debris and sea foam from the heavy surf clogging storm drains. A group of tidal pools formed along an area of the beach, draining out from a parking lot on 72nd Street onto Ocean Boulevard, resulting in flooding that closed a section of the boulevard between 68th Place and 72nd Place to traffic. Various flower gardens were also reported to have been swamped by the flooding, but no damage to housing was reported. The weakened properties in West Newport Beach also sustained no additional damage.
Hurricane Liza (1968)