Chapters

Natural Disasters

Living With Risk — Not Fear

Wildfires, floods, snowstorms and earthquakes are all part of life here. Being prepared isn't just for folks living far from town — it's for everyone.

Wildfire: A Force We Live With

Fire is essential to forest and range health. Most homes lost to wildfire don't burn in the main flame front — they ignite from wind-blown embers that can travel more than a mile.

WHAT DRIVES WILDFIRE?

  • Weather — hot, dry, windy conditions; low humidity
  • Topography — fires move faster uphill; steep slopes accelerate spread
  • Fuels — grass, pine needles, standing dead trees, decks, firewood piles
Wildfire

The Home Ignition Zone: Creative Defensible Space

A well-maintained “Home Ignition Zone” dramatically improves the chances your home survives.

Home ignition zone diagram

DISTANCE FROM HOME

Immediate Zone (0–5 ft) — Non-flammable materials, remove debris from gutters, keep area clear

Intermediate Zone (5–30 ft) — Mow grass, use gravel, not wood chips, move wood piles away

Extended Zone (30–100+ ft) — Space trees/shrubs, clear dead branches, keep area open

Defensible space

Homes with 100 feet of defensible space are far more likely to survive a wildfire.

Ember Defense Checklist

  • Clean roof and gutters regularly
  • Screen or enclose decks and attic openings
  • Store firewood well away from structures
  • Install metal mesh (1/8" or smaller) over vents
  • Move flammable materials away from walls
Clean gutters free of debris Metal mesh screening over vent Screened deck enclosure Clear space around exterior walls Damaged roof shingles Firewood stored away from structure Deck on front side of a house

Wildfire Smoke: The Unseen Risk

Wildfire smoke is now the leading source of air pollution in Montana. Check local air quality at AirNow.gov.

Who's Most at Risk

  • Children
  • Older adults
  • People with heart or lung conditions
  • Pregnant individuals

Protect Yourself During Smoke Events

  • Stay indoors with windows closed
  • Use a HEPA air purifier
  • Create a clean room in your home
  • Avoid vacuuming or burning candles

Flooding: It Can — and Does — Happen Here

Floods are the most common natural disaster in Yellowstone Country.

TYPES OF FLOODS

  • Riverine Floods — rivers exceed banks (common in spring)
  • Flash Floods — sudden heavy rainfall in steep terrain
  • Ice Jams — ice blocks river flow during freeze/thaw

Flood Preparedness

  • Know if you're in a floodplain or channel migration zone
  • Keep culverts and ditches clear
  • Don't drive through flooded roads
  • Buy flood insurance — not included in standard policies

Earthquakes in Yellowstone Country

Montana is seismically active. The 1959 Hebgen Lake earthquake (7.3 magnitude) caused a deadly landslide and created Quake Lake.

EARTHQUAKE PREPAREDNESS

  • Secure shelves, water heaters and heavy furniture
  • Know how to shut off gas, water and electricity
  • Practice 'Drop, Cover, and Hold On' drills
  • Store emergency supplies: water, food, first aid, flashlight
Earthquake Lake

Preparedness Is a Shared Responsibility

Being ready before disaster strikes can make all the difference.

Build an Emergency Kit

Include enough supplies to sustain your household for 72 hours.

  • Water (1 gallon per person per day)
  • Non-perishable food and can opener
  • First-aid kit and medications
  • Flashlight and extra batteries
  • N95 masks
  • Phone chargers or battery packs
  • Copies of important documents
  • Pet supplies

Make a Household Plan

TALK THROUGH:

  • Emergency meeting locations
  • Local and out-of-state emergency contacts
  • How you'll evacuate
  • Who will help elderly or isolated neighbors

KNOW YOUR LOCAL RESOURCES

  • Fire department and rural fire district
  • County disaster and emergency services
  • Search and rescue teams
  • Evacuation zones and routes

Be a Good Neighbor in Crisis: Montanans are known for stepping up. Check on elderly or vulnerable neighbors. Keep extra food, water and gear on hand to share. Don't rely on cell service.