* WHAT. For the first Small Craft Advisory, west winds 10 to 20 kt with gusts up to 30 kt and choppy waters. For the second Small Craft Advisory, southwest winds 10 to 15 kt with gusts up to 30 kt and a moderate chop expected. * WHERE. San Pablo Bay, Suisun Bay, the West Delta and the San Francisco Bay north of the Bay Bridge. * WHEN. For the first Small Craft Advisory, until 9 PM PDT this evening. For the second Small Craft Advisory, from 3 PM to 9 PM PDT Saturday. * IMPACTS. Conditions will be hazardous to small craft.

* WHAT. Southwest winds 10 to 15 kt with gusts up to 30 kt and a moderate chop expected. * WHERE. San Pablo Bay, Suisun Bay, the West Delta and the San Francisco Bay north of the Bay Bridge. * WHEN. From 3 PM to 9 PM PDT Saturday. * IMPACTS. Conditions will be hazardous to small craft.

* WHAT. Southwest winds 10 to 15 kt with gusts to 21 kt and a moderate chop expected. * WHERE. San Pablo Bay, Suisun Bay, the West Delta and the San Francisco Bay north of the Bay Bridge. * WHEN. From 3 PM this afternoon to 9 PM PDT this evening. * IMPACTS. Conditions will be hazardous to small craft.

* WHAT. Southwest winds 10 to 15 kt with gusts up to 25 kt and a moderate chop expected. * WHERE. San Pablo Bay, Suisun Bay, the West Delta and the San Francisco Bay north of the Bay Bridge. * WHEN. From 3 PM this afternoon to 9 PM PDT this evening. * IMPACTS. Conditions will be hazardous to small craft.

* WHAT. The South Coast AQMD has issued an air quality alert due to harmful levels of fine particle pollution. * WHERE. Orange County and the Inland Empire. Levels of particle pollution can vary by time and location depending on emissions and local weather conditions. * WHEN. 5 PM July 4th through 11:59 PM July 5th. * 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.