* WHAT...Dangerous rip currents and breaking waves due to elevated surf. Minor tidal overflows are possible during morning high tides.

* WHERE...Catalina and Santa Barbara Islands, Santa Barbara County Southwestern Coast and Santa Barbara County Southeastern Coast.

* WHEN...Through Monday morning.

* IMPACTS...There is an increased risk of ocean drowning. Rip currents can pull swimmers and surfers out to sea. Waves can wash people off beaches and rocks, and capsize small boats nearshore.

* ADDITIONAL DETAILS...A significant westerly swell is expected this weekend with impacts likely peaking Saturday. There is potential for advisory-level surf, enhanced beach erosion and minor tidal overflows. Posing most risk to west-facing beaches. Coastal hazards are likely to continue well into next week.

* WHAT...The South Coast AQMD has issued an air quality alert due to harmful levels of fine particle pollution. Visit https://www.aqmd.gov/alertinfo to check current and forecasted air quality levels.

* WHERE...in Maywood, Bell Gardens, Westmont, Hawthorne and Manhattan Beach. Levels of particle pollution can vary by time and location depending on emissions and local weather conditions.

* WHEN...until 11:59 PM Wednesday.

* IMPACTS...Particle pollution can get deep into the lungs and cause serious health problems such as heart attacks, bronchitis, asthma attacks, and difficulty breathing. Everyone can be affected, but sensitive groups such as people with lung or heart disease, older adults, people who are pregnant, children, and those who spend a lot of time outdoors are at greater risk.