1. Be Informed: Be informed about emergencies that could happen in your community and identify sources of information in your community that will be helpful before, during, and after an emergency. Register with AlertOC to receive emergency notifications in Yorba Linda. Access Ready.gov to learn what to do before, during, and after an emergency.

The National Weather Service offices across Southern California are warning residents of an increase in weather conditions that are conducive to rapid fire growth. Meteorologists are most concerned about conditions from Monday afternoon through Wednesday morning when winds will be at their peak and relative humidity will be low.

Santa Ana winds returned to the Los Angeles area on Wednesday, threatening to reverse progress made in the battle against deadly wildfires.