* WHAT...Dangerous rip currents and breaking waves due to elevated surf of 3 to 6 feet on south-facing beaches.

* WHERE...Ventura County Beaches, Malibu Coast and Los Angeles County Beaches.

* WHEN...Through late tonight.

* 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.

* WHAT...Dangerously hot conditions with temperatures up to 88 possible in Downtown Los Angeles and 85 in Inglewood. Hottest Wednesday and Thursday.

* WHERE...Los Angeles County Inland Coast including Downtown Los Angeles.

* WHEN...From Tuesday morning through Thursday evening.

* IMPACTS...There is a high risk for dangerous heat illness for anyone, especially for the very young, the very old, those without air conditioning, and those active outdoors.

* ADDITIONAL DETAILS...Temperatures are expected to cool slightly after Thursday but will remain well above normal through next weekend.

* 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...Boyle Heights and East Los Angeles. Levels of particle pollution can vary by time and location depending on emissions and local weather conditions.

* WHEN...until 12:30 PM Friday.

* 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.