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While the recent fires in Los Angeles were shocking, hundreds of communities across the United States-including in Florida, Oklahoma, and Alabama-are ripe for a similar scenario. Because it's important to take action and prepare for these urban wildfires, Headwaters Economics has created an interactive map that shows which communities have risk factors comparable to Los Angeles.

The fires in Los Angeles follow a . As was seen in Hawaii's Lahaina Fire, Colorado's Marshall Fire, and Oregon's Almeda Fire, wind-driven embers from nearby wildfires ignited homes, which spread fire rapidly to neighboring homes, becoming an urban conflagration. Also known as urban wildfires, these large, difficult-to-control fires may start as wildfires but, upon entering communities, buildings become the source of fuel. It is the building-to-building transmission that causes widespread destruction that can occur in communities of any size.

Wildfires that become urban conflagrations are becoming more frequent and damaging, with some of the occurring in the past decade. The communities that faced these disasters all shared key risk factors: high likelihood of wildfire on adjacent lands and many homes exposed. When extreme winds enter the equation, the number of burning buildings quickly overwhelms firefighting resources.

Hundreds of places have a wildfire risk profile similar to Los Angeles

Using data from the U.S. Forest Service's project, Headwaters Economics examined the risk markers in communities with recent urban wildfires to identify communities that share similar characteristics. There is no way to precisely predict the next disaster, but this analysis shows that more than 1,100 communities in 32 states across the United States share similarities with communities recently devastated by urban wildfires.

The map below shows locations that share two of the most significant risk factors of recent urban wildfires: a higher likelihood of nearby wildfire and a higher potential for home loss-even with top-notch firefighting resources. (See Methods & Data Sources below).

These communities were identified by examining the shared characteristics of recent urban wildfires and other U.S. communities. As with the map above, the orange dots on the graph below represent communities with the greatest potential for wildfires becoming urban conflagrations. The brown dots represent communities that already faced recent urban wildfire disasters.

The characteristics captured in this analysis are not the only measures of risk. Community leaders and fire personnel also need to weigh local risk factors, such as wind conditions, ignition sources and locations, fuel moisture, firefighting resources, housing arrangement, and building design and construction, which affect every community's risk. Additionally, wildfire risk modelers are still working to accurately represent mechanisms of ember spread and home-to-home fire ignition in risk maps. Even with these limitations, this analysis can help identify communities where risk is higher.

Urban wildfires don't just happen in the West

Although many might assume urban wildfire risk is limited to forested areas in western states, this analysis indicates that more than half (52%) of the communities with the greatest potential for catastrophic events are not in the West. Florida, Texas, Oklahoma, and Alabama are among the top 10 states when ranked by communities with high urban wildfire risk factors.

In Texas and Oklahoma, the potential for fast-moving grass fires and extremely strong winds puts thousands of homes at risk. In Florida, Georgia, and Alabama, dense vegetation exposed to dry periods and frequent lightning and human ignitions set the stage for disaster in highly populated areas. In dozens of states, rapid housing development in areas with flammable vegetation contributes to rising risk.

Communities should prepare for urban wildfire now

Many well-researched actions can help reduce community wildfire risk, but in local, state and federal approaches to wildfire management. Beyond fire suppression and vegetation management, construction of wildfire-resistant homes, neighborhoods, and communities must also be prioritized.

A focus on the built environment helps address the fundamental causes of disasters like those in Los Angeles. Urban conflagrations often begin with windblown embers flying ahead of a wildfire front, igniting spot fires that expose homes to flames and heat. The speed at which a spot fire becomes an urban conflagration can be influenced by construction materials, landscaping, and the proximity of homes to each other. Building and homes and neighborhoods to minimize places where embers can ignite is not only necessary, research has found it can be . Reducing wildfire risk communitywide can also help and potentially avoid that often fall on taxpayers.

The human and economic devastation in Los Angeles is a stark warning of what could happen to communities with similar risk across the country. Investing in wildfire-resistant homes and communities today will save lives, homes, and economic losses in the future. Communities must prepare now to prevent the next disaster.