Monday will bring dangerous conditions to coastal communities, including dense fog and a high surf advisory until Wednesday.
The National Weather Service issued a high surf advisory, urging boaters to stay in safe harbor, residents are advised to stay away from the water or swim near a lifeguard and stay off of rock walls and jetties.
Conditions are expected to worsen throughout the day, with 8 to 12-foot waves and minor coastal flooding expected in some areas.
Residents in Redondo Beach said they saw some intense waves in the area overnight.
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Visibility in the fog is a quarter mile or less and temperatures will be in the 60s Monday. There is a 40% chance of rain on Christmas Eve, but sunny conditions are in the forecast for Christmas.
A high surf advisory is in effect in Orange County until 4 a.m. Wednesday. It will be foggy with highs in the 60s Monday along the coast and inland areas.
Showers are likely in the afternoon Tuesday in parts of Orange County.
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There is a 70% chance of rain with highs from 61 to 65. Foggy conditions are expected in the San Gabriel Valley and Santa Monica Mountains Monday and Tuesday.