Wildfires have raged across California in recent weeks, burning tens of thousands of acres even before the traditional fire season begins. As we enter National Preparedness Month in September, the fires are a grim reminder that we must all take action to ensure that we are ready at the personal and community levels for the kinds of emergencies that could emerge at any time.Of course, wildfires are a top concern in San Diego County. We also face the potential for other kinds of emergencies, from earthquakes and drought to cyberattacks and hazardous materials spills.