Cal Fire's fire hazard severity maps are getting a makeover, and homeowners may want to pay attention. This critical city planning resource - which is getting a major update for the first time in more than 10 years - factors in scientific measurements to determine how fire-prone the cities and counties are in California.

The new fire hazard severity zone maps issued by Cal Fire this week are part of a two-month statewide rollout.

Wildfire danger zones are expanding across California as Cal Fire released its latest round of new fire hazard maps.