Maps

Fire Hazard Severity Mapping

CAL FIRE provides the definitive statewide Fire Hazard Severity Zones.

Be sure to check before you sell your home: Homeowners in “high” or “very high” severity zones must apply for a Defensible Space Inspection prior to selling their home. Find out more on CAL FIRE’s Defensible Space page.

This tool from Alameda County Fire Department is especially useful to be able to look up Fire Hazard Severity by address.

Another tool compares 2009 to 2025 Local Responsibility Area (LRA) Fire Hazard Severity Zones in Contra Costa County from Contra Costa County Fire Protection District.

Current Fire Status and Evacuation Situation for Your Location

Find your current location on the map to get wildfire status and sign up for alerts. Be informed before, during, and after a wildfire event or evacuation.

• Current status and evacuation info with the Zonehaven / Genesys map.

• Berkeley GIS map with evacuation routes.

USGS Mapping

• https://www.usgs.gov/search?keywords=wildfire+maps

Bay Area Hazard Mapping

These include options to view layers with past wildfire locations and look at other hazards as well. This is the most comprehensive set of maps we have found.

• Alameda and Contra Costa County Hazard and Wildfire Risk to Structures (Tukman Geospatial)

• Alameda, Contra Costa, Napa, and Sonoma Counties Wildfire Fuel Mapper (UCANR, Pepperwood and Tukman Geospatial)

• Bay Area Interactive Wildfire Risk and Fire History Map (MTC/ABAG)

• Berkeley Emergency Access and Evacuation Network (static map)

• Berkeley Interactive CWPP Map with multiple layers showing evacuation routes, vegetation, WUI and more.

• Castro Valley Fire Hazards (from Public Review Draft of the Castro Valley General Plan 2011).

• The San Francisco Public Utility Commission manages the watershed around San Antonio Reservoir and Calaveras Reservoir located east of Fremont and Milpitas. Their Watershed Management Plan includes a map of wildfire severity.