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Wildfire Preparedness

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Wildfire Awareness, Preparedness & Defensible Space

Wildfires are year-round threat in California and across much of the western United States.  Increasing temperatures, prolonged drought, and expanding development in the Wildland-Urban Interface (WUI) have made wildfires more frequent, intense, and destructive.  Wildfire Awareness & Preparedness is a proven strategy that can significantly reduce risk to life, property, and first responders.  This topic outlines practical, comprehensive actions individuals, families, neighborhoods, businesses, and communities can take before, during, and after a wildfire to build a culture of resilience.

A cornerstone of this preparation is the creation and maintenance of Defensible Space - the crucial buffer you create between a building on your property and the flammable grass, trees, or wildland area that surrounds it.  This space is designed to slow or stop the spread of wildfire and protect your home from catching fire via direct flame contact or flying embers.  It isn't about clearing every living thing from your yard; rather it's about thoughtful management, strategic spacing, and choosing the right materials.  When we manage our Defensible Space, we aren't just protecting our own walls - we are creating a collective safety net for the entire neighborhood.

Understanding Wildfire Risk

 To effectively protect our homes, we must first understand the components that make up wildfire risk.  According to the USDA Forest Service and WildfireRisk.org , risk is the combination of hazard (the likelihood and intensity of fire) and vulnerability (the exposure and susceptibility of our assets).  In Amador County, this risk is particularly acute: homes here have a greater risk of wildfire than 98% of all counties in the United States.  Since over 80% of our county is classified as having a "High" or "Very High" wildfire hazard potential, risk is a primary factor of our local environment.

Understanding risk also means recognizing the three primary ways wildfire spread: direct flame contact, radiant heat, and embers.  Embers pose a significant threat, as they can travel ahead of the fire front and enter through vents and gaps, igniting the structure from within.  Furthermore, we must account for the vulnerability of our population; in Amador County, between 27%-28% of residents are over age 65, and about 16.5% live with disabilities.  These factors mean our preparation must include extra time for evacuation and a focus on community-side support to ensure everyone - regardless of physical ability - is protected from the threats of fire and smoke.

Ignitions: The Amador County Data

While we often focus on how to survive a fire, the most effective way to reduce community risk is to prevent the initial spark.  Nationally, nearly 9 out of 10 wildfires are caused by people.  In Amador County, this human factor is even more localized and specific.  According to WildfireRisk.org, 92% (458) of wildfires in Amador County between 2010 and 2020 were determined to be human-caused.  8% (39) were caused by lightning.

A closer look at those 458 human-caused ignitions reveals the specific behaviors that pose the greatest risk to our community:

  • Debris & Open Burning (152 fires): The leading known cause of local wildfires, typically resulting from residential yard waste burning that escapes control.
  • Equipment & Vehicle Use (84 fires): Fire sparked by mowers, chainsaws, weed eaters hitting rocks, or hot exhaust systems parking over dry vegetation.
  • Undetermined Human Causes (127 fires): A significant number of fires were confirmed to be human-caused, though the specific ignition source could not be definitively identified.

Prevention Strategies

By addressing the "human factor," we can significantly lower the local hazard level before a fire ever begins.

  • Get a CAL FIRE residential burn permit by visiting, https://burnpermit.fire.ca.gov/
  • If you'll be burning larger piles, you must also get a Large Pile Burn Permit from the Amador Air District.
  • Only burn on Permissive Burn days.  Call 209-223-6246 before burning.
  • Clear all flammable material and vegetation with 10 feet of the outer edge of the pile and down to bare earth.
  • Keep a water supply close to the burning site.
  • An adult should be in attendance with a shovel until the fire is out.
  • Do not burn unless weather conditions (particularly wind) are such that burning can be considered safe.
  • To reduce the amount of smoke when burning, you should burn between 10 a.m. and 3 p.m. when smoke dispersion conditions are best.

Creating Defensible Space

Defensible Space is the area around a structure where vegetation, debris, and other combustible materials are managed to slow the spread of wildfire and reduce radiant heat exposure.  Proper Defensible Space also provides firefighters with safer conditions to defend homes.

The Three Defensible Space Zones:

Zone 0: Ember-Resistant Zone - Zone 0 extends 5 feet from buildings, structures, decks, etc.

  • Use gravel, pavers, or concrete instead of combustible mulch.
  • Clear dead weeds, grass, and debris: check roofs, gutters, and outdoor areas.
  • Keep branches trimmed 10 feet away from chimneys and stovepipes.
  • Minimize combustible items like furniture and planters on decks.
  • Move firewood and lumber to Zone 2 for safety.
  • Replace combustible fencing and gates with non-combustible materials.
  • Shift garbage and recycling containers to a safer area outside this zone.
  • Clear flammable vegetation and items from under decks, balconies, and stairs.
  • Relocate boats, RVs, and vehicles away from this zone to reduce fire risks.

Zone 1: Lean, Clean, and Green Zone - Zone 1 extends to 30 feet from buildings, structures, decks, etc., or to your property line, whichever is closer.

  • Clear all dead plants, grass, and weeds.
  • Remove dead leaves and pine needles from your yard, roof, and gutters.
  • Trim overhanging branches and keep them 10 feet from your chimney.
  • Regularly trim trees to maintain a 10-foot gap from others.
  • Move wood piles to Zone 2.
  • Prune flammable plants and shrubs near windows.
  • Maintain space between trees, shrubs, and flammable items like patio furniture and wood piles.
  • Ensure outbuildings and LPG tanks have 10 feet of clear space to bare soil and no flammable vegetation within an additional 10 feet around them.

Zone 2: Reduce Fuel Zone - Zone 2 extends from 30 feet to 100 feet out from buildings, structures, decks, etc., or to your property line, whichever is closer.

  • Trim annual grass to a maximum height of 4 inches.
  • Space our shrubs and trees horizontally.
  • Ensure vertical spacing between grass, shrubs, and trees.
  • Remove fallen leaves, needles, and branches less than 3 inches in diameter.
  • Keep exposed wood piles at least 10 feet clear from surroundings, down to the soil.
  • Ensure outbuildings and LPG tanks have 10 feet of clear space to bare soil and no flammable vegetation within an additional 10 feet around them.

Home Hardening

Home Hardening is another mitigation effort against wildfires.  Home Hardening refers to actions that help reduce a home's vulnerability to wildfire by addressing how the structure itself resists ember intrusion, radiant heat, and direct flame contact.  Our Home Hardening guide explores wildfire-specific Home Hardening measures in much greater detail.  Click here for more information 

Preparing Your Household

Building on our Family Disaster Preparedness, our Shelter-In-Place Preparedness, and our Mobile Preparedness & Go-Bags guides, every household should also have a Wildfire Action Plan.  This plan not only emphasizes the importance of creating and maintaining Defensible Space and Home Hardening, but also contains information about the preparations and precautions to make in order to evacuate early and safely.

Download your Wildfire Action Plan by visiting:

https://readyforwildfire.org/prepare-for-wildfire/wildfire-action-plan/

Evacuation Preparedness

While preparing your land can help protect your home, preparing your household can save lives.  True Wildfire Preparedness requires a "Ready, Set, Go" mindset - knowing exactly what to pack, how to receive emergency alerts, and when to move your family and livestock to safety.  Click here to read our Evacuation Preparedness guide.

Staying Informed

Timely information can save lives during a wildfire, but residents should only rely on trusted sources to stay aware of current conditions and instructions.

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